Code saving and stuff (#9)

lil update

app/src/main/AndroidManifest.xml

@@ -17,7 +17,6 @@
         android:testOnly="false"
         android:theme="@style/AppTheme"
         tools:replace="android:allowBackup">
-
         <activity
             android:name=".activity.MainActivity"
             android:exported="true"
@@ -29,6 +28,11 @@
             </intent-filter>
         </activity>
 
+        <service
+            android:name=".service.MessagesUpdateService"
+            android:enabled="true"
+            android:exported="false" />
+
         <provider
             android:name="androidx.core.content.FileProvider"
             android:authorities="${applicationId}.provider"

app/src/main/kotlin/com/meloda/fast/activity/MainActivity.kt

@@ -1,17 +1,54 @@
 package com.meloda.fast.activity
 
 import android.os.Bundle
-import androidx.core.splashscreen.SplashScreen.Companion.installSplashScreen
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.FragmentTransaction
+import com.github.terrakok.cicerone.NavigatorHolder
+import com.github.terrakok.cicerone.Router
+import com.github.terrakok.cicerone.androidx.AppNavigator
+import com.github.terrakok.cicerone.androidx.FragmentScreen
 import com.meloda.fast.R
 import com.meloda.fast.base.BaseActivity
+import com.meloda.fast.common.Screens
 import dagger.hilt.android.AndroidEntryPoint
+import javax.inject.Inject
 
 @AndroidEntryPoint
 class MainActivity : BaseActivity(R.layout.activity_main) {
 
-    override fun onCreate(savedInstanceState: Bundle?) {
-        installSplashScreen()
-        super.onCreate(savedInstanceState)
+    private val navigator = object : AppNavigator(this, R.id.root_fragment_container) {
+        override fun setupFragmentTransaction(
+            screen: FragmentScreen,
+            fragmentTransaction: FragmentTransaction,
+            currentFragment: Fragment?,
+            nextFragment: Fragment
+        ) {
+//            fragmentTransaction.setCustomAnimations(
+//                R.anim.activity_open_enter, R.anim.activity_close_exit,
+//                R.anim.activity_close_enter, R.anim.activity_open_exit
+//            )
+        }
     }
 
+    @Inject
+    lateinit var navigatorHolder: NavigatorHolder
+
+    @Inject
+    lateinit var router: Router
+
+    override fun onResumeFragments() {
+        navigatorHolder.setNavigator(navigator)
+        super.onResumeFragments()
+    }
+
+    override fun onPause() {
+        navigatorHolder.removeNavigator()
+        super.onPause()
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        router.newRootScreen(Screens.Main())
+    }
 }

app/src/main/kotlin/com/meloda/fast/api/ApiEvent.kt

@@ -0,0 +1,28 @@
+package com.meloda.fast.api
+
+enum class ApiEvent(val value: Int) {
+    MESSAGE_SET_FLAGS(2),
+    MESSAGE_CLEAR_FLAGS(3),
+    MESSAGE_NEW(4),
+    MESSAGE_EDIT(5),
+    MESSAGE_READ_INCOMING(6),
+    MESSAGE_READ_OUTGOING(7),
+    FRIEND_ONLINE(8),
+    FRIEND_OFFLINE(9),
+    MESSAGES_DELETED(13),
+    PIN_UNPIN_CONVERSATION(20),
+    PRIVATE_TYPING(61),
+    CHAT_TYPING(62),
+    ONE_MORE_TYPING(63),
+    VOICE_RECORDING(64),
+    PHOTO_UPLOADING(65),
+    VIDEO_UPLOADING(66),
+    FILE_UPLOADING(67),
+    UNREAD_COUNT_UPDATE(80)
+    ;
+
+    companion object {
+        fun parse(value: Int) = values().firstOrNull { it.value == value }
+    }
+
+}

app/src/main/kotlin/com/meloda/fast/api/LongPollEvent.kt

@@ -0,0 +1,20 @@
+package com.meloda.fast.api
+
+import com.meloda.fast.api.model.VkGroup
+import com.meloda.fast.api.model.VkMessage
+import com.meloda.fast.api.model.VkUser
+
+sealed class LongPollEvent {
+
+    data class VkMessageNewEvent(
+        val message: VkMessage,
+        val profiles: HashMap<Int, VkUser>,
+        val groups: HashMap<Int, VkGroup>
+    ) : LongPollEvent()
+
+    data class VkMessageEditEvent(val message: VkMessage) : LongPollEvent()
+
+    data class VkMessageReadIncomingEvent(val peerId: Int, val messageId: Int) : LongPollEvent()
+    data class VkMessageReadOutgoingEvent(val peerId: Int, val messageId: Int) : LongPollEvent()
+
+}

app/src/main/kotlin/com/meloda/fast/api/LongPollUpdatesParser.kt

@@ -0,0 +1,275 @@
+package com.meloda.fast.api
+
+import android.util.Log
+import com.google.gson.JsonArray
+import com.meloda.fast.api.model.VkGroup
+import com.meloda.fast.api.model.VkUser
+import com.meloda.fast.api.network.Answer
+import com.meloda.fast.api.network.messages.MessagesDataSource
+import com.meloda.fast.api.network.messages.MessagesGetByIdRequest
+import com.meloda.fast.base.viewmodel.VkEventCallback
+import kotlinx.coroutines.*
+import kotlin.coroutines.CoroutineContext
+import kotlin.coroutines.resume
+import kotlin.coroutines.suspendCoroutine
+
+@Suppress("UNCHECKED_CAST")
+class LongPollUpdatesParser(
+    private val messagesDataSource: MessagesDataSource
+) : CoroutineScope {
+
+    companion object {
+        private const val TAG = "LongPollUpdatesParser"
+    }
+
+    private val job = SupervisorJob()
+
+    private val exceptionHandler = CoroutineExceptionHandler { _, throwable ->
+        Log.d(TAG, "error: $throwable")
+        throwable.printStackTrace()
+    }
+
+    override val coroutineContext: CoroutineContext
+        get() = Dispatchers.Default + job + exceptionHandler
+
+    private val listenersMap: MutableMap<ApiEvent, MutableCollection<VkEventCallback<*>>> =
+        mutableMapOf()
+
+    fun parseNextUpdate(event: JsonArray) {
+        val eventType: ApiEvent? =
+            try {
+                ApiEvent.parse(event[0].asInt)
+            } catch (e: Exception) {
+                null
+            }
+
+        if (eventType != null) {
+            println("$TAG: $eventType: $event")
+        } else {
+            println("$TAG: unknown event: $event")
+        }
+
+        when (eventType) {
+            ApiEvent.MESSAGE_SET_FLAGS -> parseMessageSetFlags(eventType, event)
+            ApiEvent.MESSAGE_CLEAR_FLAGS -> parseMessageClearFlags(eventType, event)
+            ApiEvent.MESSAGE_NEW -> parseMessageNew(eventType, event)
+            ApiEvent.MESSAGE_EDIT -> parseMessageEdit(eventType, event)
+            ApiEvent.MESSAGE_READ_INCOMING -> parseMessageReadIncoming(eventType, event)
+            ApiEvent.MESSAGE_READ_OUTGOING -> parseMessageReadOutgoing(eventType, event)
+            ApiEvent.FRIEND_ONLINE -> parseFriendOnline(eventType, event)
+            ApiEvent.FRIEND_OFFLINE -> parseFriendOffline(eventType, event)
+            ApiEvent.MESSAGES_DELETED -> parseMessagesDeleted(eventType, event)
+//            ApiEvent.PIN_UNPIN_CONVERSATION -> TODO()
+//            ApiEvent.TYPING -> TODO()
+//            ApiEvent.VOICE_RECORDING -> TODO()
+//            ApiEvent.PHOTO_UPLOADING -> TODO()
+//            ApiEvent.VIDEO_UPLOADING -> TODO()
+//            ApiEvent.FILE_UPLOADING -> TODO()
+//            ApiEvent.UNREAD_COUNT_UPDATE -> TODO()
+        }
+
+    }
+
+    private fun parseMessageSetFlags(eventType: ApiEvent, event: JsonArray) {
+//        println("$TAG: $eventType: $event")
+    }
+
+    private fun parseMessageClearFlags(eventType: ApiEvent, event: JsonArray) {
+//        println("$TAG: $eventType: $event")
+    }
+
+    private fun parseMessageNew(eventType: ApiEvent, event: JsonArray) {
+//        println("$TAG: $eventType: $event")
+
+        val messageId = event[1].asInt
+
+        launch {
+            val newMessageEvent: LongPollEvent.VkMessageNewEvent =
+                loadNormalMessage(
+                    eventType,
+                    messageId
+                )
+
+            listenersMap[ApiEvent.MESSAGE_NEW]?.let {
+                it.map { vkEventCallback ->
+                    (vkEventCallback as VkEventCallback<LongPollEvent.VkMessageNewEvent>)
+                        .onEvent(newMessageEvent)
+                }
+            }
+        }
+    }
+
+    private fun parseMessageEdit(eventType: ApiEvent, event: JsonArray) {
+//        println("$TAG: $eventType: $event")
+
+        val messageId = event[1].asInt
+
+        launch {
+            val editedMessageEvent: LongPollEvent.VkMessageEditEvent =
+                loadNormalMessage(
+                    eventType,
+                    messageId
+                )
+
+            listenersMap[ApiEvent.MESSAGE_EDIT]?.let {
+                it.map { vkEventCallback ->
+                    (vkEventCallback as VkEventCallback<LongPollEvent.VkMessageEditEvent>)
+                        .onEvent(editedMessageEvent)
+                }
+            }
+        }
+    }
+
+    private fun parseMessageReadIncoming(eventType: ApiEvent, event: JsonArray) {
+        val peerId = event[1].asInt
+        val messageId = event[2].asInt
+
+        launch {
+            listenersMap[ApiEvent.MESSAGE_READ_INCOMING]?.let { listeners ->
+                listeners.map { vkEventCallback ->
+                    (vkEventCallback as VkEventCallback<LongPollEvent.VkMessageReadIncomingEvent>)
+                        .onEvent(
+                            LongPollEvent.VkMessageReadIncomingEvent(
+                                peerId = peerId,
+                                messageId = messageId
+                            )
+                        )
+                }
+            }
+        }
+    }
+
+    private fun parseMessageReadOutgoing(eventType: ApiEvent, event: JsonArray) {
+        val peerId = event[1].asInt
+        val messageId = event[2].asInt
+
+        launch {
+            listenersMap[ApiEvent.MESSAGE_READ_OUTGOING]?.let { listeners ->
+                listeners.map { vkEventCallback ->
+                    (vkEventCallback as VkEventCallback<LongPollEvent.VkMessageReadOutgoingEvent>)
+                        .onEvent(
+                            LongPollEvent.VkMessageReadOutgoingEvent(
+                                peerId = peerId,
+                                messageId = messageId
+                            )
+                        )
+                }
+            }
+        }
+    }
+
+    private fun parseFriendOnline(eventType: ApiEvent, event: JsonArray) {
+//        println("$TAG: $eventType: $event")
+    }
+
+    private fun parseFriendOffline(eventType: ApiEvent, event: JsonArray) {
+//        println("$TAG: $eventType: $event")
+    }
+
+    private fun parseMessagesDeleted(eventType: ApiEvent, event: JsonArray) {
+//        println("$TAG: $eventType: $event")
+    }
+
+    private suspend fun <T : LongPollEvent> loadNormalMessage(eventType: ApiEvent, messageId: Int) =
+        coroutineScope {
+            suspendCoroutine<T> {
+                launch {
+                    val normalMessageResponse = messagesDataSource.getById(
+                        MessagesGetByIdRequest(
+                            messagesIds = listOf(messageId),
+                            extended = true,
+                            fields = VKConstants.ALL_FIELDS
+                        )
+                    )
+
+                    if (normalMessageResponse !is Answer.Success) {
+                        (normalMessageResponse as Answer.Error).throwable.let { throw it }
+                    }
+
+                    val messagesResponse = normalMessageResponse.data.response ?: return@launch
+
+                    val messagesList = messagesResponse.items
+                    if (messagesList.isEmpty()) return@launch
+
+                    val normalMessage = messagesList[0].asVkMessage()
+                    messagesDataSource.store(listOf(normalMessage))
+
+                    val profiles = hashMapOf<Int, VkUser>()
+                    messagesResponse.profiles?.forEach { baseUser ->
+                        baseUser.asVkUser().let { user -> profiles[user.id] = user }
+                    }
+
+                    val groups = hashMapOf<Int, VkGroup>()
+                    messagesResponse.groups?.forEach { baseGroup ->
+                        baseGroup.asVkGroup().let { group -> groups[group.id] = group }
+                    }
+
+                    val resumeValue: LongPollEvent? = when (eventType) {
+                        ApiEvent.MESSAGE_NEW ->
+                            LongPollEvent.VkMessageNewEvent(
+                                normalMessage,
+                                profiles,
+                                groups
+                            )
+                        ApiEvent.MESSAGE_EDIT -> LongPollEvent.VkMessageEditEvent(normalMessage)
+                        else -> null
+                    }
+
+                    resumeValue?.let { value -> it.resume(value as T) }
+                }
+            }
+        }
+
+
+    fun <T : Any> registerListener(eventType: ApiEvent, listener: VkEventCallback<T>) {
+        listenersMap.let { map ->
+            map[eventType] = (map[eventType] ?: mutableListOf()).also {
+                it.add(listener)
+            }
+        }
+    }
+
+    fun onMessageIncomingRead(listener: VkEventCallback<LongPollEvent.VkMessageReadIncomingEvent>) {
+        registerListener(ApiEvent.MESSAGE_READ_INCOMING, listener)
+    }
+
+    fun onMessageIncomingRead(block: (LongPollEvent.VkMessageReadIncomingEvent) -> Unit) {
+        onMessageIncomingRead(assembleEventCallback(block))
+    }
+
+    fun onMessageOutgoingRead(listener: VkEventCallback<LongPollEvent.VkMessageReadOutgoingEvent>) {
+        registerListener(ApiEvent.MESSAGE_READ_OUTGOING, listener)
+    }
+
+    fun onMessageOutgoingRead(block: (LongPollEvent.VkMessageReadOutgoingEvent) -> Unit) {
+        onMessageOutgoingRead(assembleEventCallback(block))
+    }
+
+    fun onNewMessage(listener: VkEventCallback<LongPollEvent.VkMessageNewEvent>) {
+        registerListener(ApiEvent.MESSAGE_NEW, listener)
+    }
+
+    fun onNewMessage(block: (LongPollEvent.VkMessageNewEvent) -> Unit) {
+        onNewMessage(assembleEventCallback(block))
+    }
+
+    fun onMessageEdited(listener: VkEventCallback<LongPollEvent.VkMessageEditEvent>) {
+        registerListener(ApiEvent.MESSAGE_EDIT, listener)
+    }
+
+    fun onMessageEdited(block: (LongPollEvent.VkMessageEditEvent) -> Unit) {
+        onMessageEdited(assembleEventCallback(block))
+    }
+
+    fun clearListeners() {
+        listenersMap.clear()
+    }
+}
+
+internal inline fun <R : Any> assembleEventCallback(
+    crossinline block: (R) -> Unit
+): VkEventCallback<R> {
+    return object : VkEventCallback<R> {
+        override fun onEvent(event: R) = block.invoke(event)
+    }
+}

app/src/main/kotlin/com/meloda/fast/api/VKConstants.kt

@@ -2,6 +2,7 @@ package com.meloda.fast.api
 
 import com.meloda.fast.api.model.attachments.*
 
+@Suppress("RemoveExplicitTypeArguments")
 object VKConstants {
 
     const val GROUP_FIELDS = "description,members_count,counters,status,verified"
@@ -12,10 +13,13 @@ object VKConstants {
     const val ALL_FIELDS = "$USER_FIELDS,$GROUP_FIELDS"
 
     const val API_VERSION = "5.132"
+    const val LP_VERSION = 10
+
     const val VK_APP_ID = "2274003"
     const val VK_SECRET = "hHbZxrka2uZ6jB1inYsH"
 
     const val FAST_GROUP_ID = -119516304
+    const val FAST_APP_ID = "6964679"
 
     object Auth {
         const val SCOPE = "notify," +
@@ -38,7 +42,7 @@ object VKConstants {
         }
     }
 
-    val restrictedToEditAttachments = listOf(
+    val restrictedToEditAttachments = listOf<Class<out VkAttachment>>(
         VkCall::class.java,
         VkCurator::class.java,
         VkEvent::class.java,
@@ -46,6 +50,25 @@ object VKConstants {
         VkGraffiti::class.java,
         VkGroupCall::class.java,
         VkStory::class.java,
-        VkVoiceMessage::class.java
+        VkVoiceMessage::class.java,
+        VkWidget::class.java
+    )
+
+    val separatedFromTextAttachments = listOf<Class<out VkAttachment>>(
+        VkPhoto::class.java,
+        VkVideo::class.java,
+        VkSticker::class.java,
+        VkStory::class.java,
+        VkWidget::class.java,
+        VkGroupCall::class.java,
+        VkGroupCall::class.java,
+        VkCurator::class.java,
+        VkEvent::class.java,
+        VkGift::class.java,
+        VkGraffiti::class.java,
+        VkPoll::class.java,
+        VkWall::class.java,
+        VkWallReply::class.java,
+        VkLink::class.java
     )
 }

app/src/main/kotlin/com/meloda/fast/api/VkUtils.kt

@@ -139,86 +139,82 @@ object VkUtils {
 
         for (baseAttachment in baseAttachments) {
             when (baseAttachment.getPreparedType()) {
-                BaseVkAttachmentItem.AttachmentType.PHOTO -> {
+                BaseVkAttachmentItem.AttachmentType.Photo -> {
                     val photo = baseAttachment.photo ?: continue
                     attachments += photo.asVkPhoto()
                 }
-                BaseVkAttachmentItem.AttachmentType.VIDEO -> {
+                BaseVkAttachmentItem.AttachmentType.Video -> {
                     val video = baseAttachment.video ?: continue
                     attachments += video.asVkVideo()
                 }
-                BaseVkAttachmentItem.AttachmentType.AUDIO -> {
+                BaseVkAttachmentItem.AttachmentType.Audio -> {
                     val audio = baseAttachment.audio ?: continue
                     attachments += audio.asVkAudio()
                 }
-                BaseVkAttachmentItem.AttachmentType.FILE -> {
+                BaseVkAttachmentItem.AttachmentType.File -> {
                     val file = baseAttachment.file ?: continue
                     attachments += file.asVkFile()
                 }
-                BaseVkAttachmentItem.AttachmentType.LINK -> {
+                BaseVkAttachmentItem.AttachmentType.Link -> {
                     val link = baseAttachment.link ?: continue
                     attachments += link.asVkLink()
                 }
-                BaseVkAttachmentItem.AttachmentType.MINI_APP -> {
+                BaseVkAttachmentItem.AttachmentType.MiniApp -> {
                     val miniApp = baseAttachment.miniApp ?: continue
-                    attachments += VkMiniApp(
-                        link = miniApp.app.shareUrl
-                    )
+                    attachments += miniApp.asVkMiniApp()
                 }
-                BaseVkAttachmentItem.AttachmentType.VOICE -> {
+                BaseVkAttachmentItem.AttachmentType.Voice -> {
                     val voiceMessage = baseAttachment.voiceMessage ?: continue
                     attachments += voiceMessage.asVkVoiceMessage()
                 }
-                BaseVkAttachmentItem.AttachmentType.STICKER -> {
+                BaseVkAttachmentItem.AttachmentType.Sticker -> {
                     val sticker = baseAttachment.sticker ?: continue
                     attachments += sticker.asVkSticker()
                 }
-                BaseVkAttachmentItem.AttachmentType.GIFT -> {
+                BaseVkAttachmentItem.AttachmentType.Gift -> {
                     val gift = baseAttachment.gift ?: continue
                     attachments += gift.asVkGift()
                 }
-                BaseVkAttachmentItem.AttachmentType.WALL -> {
+                BaseVkAttachmentItem.AttachmentType.Wall -> {
                     val wall = baseAttachment.wall ?: continue
                     attachments += wall.asVkWall()
                 }
-                BaseVkAttachmentItem.AttachmentType.GRAFFITI -> {
+                BaseVkAttachmentItem.AttachmentType.Graffiti -> {
                     val graffiti = baseAttachment.graffiti ?: continue
                     attachments += graffiti.asVkGraffiti()
                 }
-                BaseVkAttachmentItem.AttachmentType.POLL -> {
+                BaseVkAttachmentItem.AttachmentType.Poll -> {
                     val poll = baseAttachment.poll ?: continue
-                    attachments += VkPoll(
-                        id = poll.id
-                    )
+                    attachments += poll.asVkPoll()
                 }
-                BaseVkAttachmentItem.AttachmentType.WALL_REPLY -> {
+                BaseVkAttachmentItem.AttachmentType.WallReply -> {
                     val wallReply = baseAttachment.wallReply ?: continue
-                    attachments += VkWallReply(
-                        id = wallReply.id
-                    )
+                    attachments += wallReply.asVkWallReply()
                 }
-                BaseVkAttachmentItem.AttachmentType.CALL -> {
+                BaseVkAttachmentItem.AttachmentType.Call -> {
                     val call = baseAttachment.call ?: continue
                     attachments += call.asVkCall()
                 }
-                BaseVkAttachmentItem.AttachmentType.GROUP_CALL_IN_PROGRESS -> {
+                BaseVkAttachmentItem.AttachmentType.GroupCallInProgress -> {
                     val groupCall = baseAttachment.groupCall ?: continue
-                    attachments += VkGroupCall(
-                        initiatorId = groupCall.initiator_id
-                    )
+                    attachments += groupCall.asVkGroupCall()
                 }
-                BaseVkAttachmentItem.AttachmentType.CURATOR -> {
+                BaseVkAttachmentItem.AttachmentType.Curator -> {
                     val curator = baseAttachment.curator ?: continue
                     attachments += curator.asVkCurator()
                 }
-                BaseVkAttachmentItem.AttachmentType.EVENT -> {
+                BaseVkAttachmentItem.AttachmentType.Event -> {
                     val event = baseAttachment.event ?: continue
                     attachments += event.asVkEvent()
                 }
-                BaseVkAttachmentItem.AttachmentType.STORY -> {
+                BaseVkAttachmentItem.AttachmentType.Story -> {
                     val story = baseAttachment.story ?: continue
                     attachments += story.asVkStory()
                 }
+                BaseVkAttachmentItem.AttachmentType.Widget -> {
+                    val widget = baseAttachment.widget ?: continue
+                    attachments += widget.asVkWidget()
+                }
                 else -> continue
             }
         }
@@ -580,22 +576,22 @@ object VkUtils {
         attachmentType: BaseVkAttachmentItem.AttachmentType
     ): Drawable? {
         val resId = when (attachmentType) {
-            BaseVkAttachmentItem.AttachmentType.PHOTO -> R.drawable.ic_attachment_photo
-            BaseVkAttachmentItem.AttachmentType.VIDEO -> R.drawable.ic_attachment_video
-            BaseVkAttachmentItem.AttachmentType.AUDIO -> R.drawable.ic_attachment_audio
-            BaseVkAttachmentItem.AttachmentType.FILE -> R.drawable.ic_attachment_file
-            BaseVkAttachmentItem.AttachmentType.LINK -> R.drawable.ic_attachment_link
-            BaseVkAttachmentItem.AttachmentType.VOICE -> R.drawable.ic_attachment_voice
-            BaseVkAttachmentItem.AttachmentType.MINI_APP -> R.drawable.ic_attachment_mini_app
-            BaseVkAttachmentItem.AttachmentType.STICKER -> R.drawable.ic_attachment_sticker
-            BaseVkAttachmentItem.AttachmentType.GIFT -> R.drawable.ic_attachment_gift
-            BaseVkAttachmentItem.AttachmentType.WALL -> R.drawable.ic_attachment_wall
-            BaseVkAttachmentItem.AttachmentType.GRAFFITI -> R.drawable.ic_attachment_graffiti
-            BaseVkAttachmentItem.AttachmentType.POLL -> R.drawable.ic_attachment_poll
-            BaseVkAttachmentItem.AttachmentType.WALL_REPLY -> R.drawable.ic_attachment_wall_reply
-            BaseVkAttachmentItem.AttachmentType.CALL -> R.drawable.ic_attachment_call
-            BaseVkAttachmentItem.AttachmentType.GROUP_CALL_IN_PROGRESS -> R.drawable.ic_attachment_group_call
-            BaseVkAttachmentItem.AttachmentType.STORY -> R.drawable.ic_attachment_story
+            BaseVkAttachmentItem.AttachmentType.Photo -> R.drawable.ic_attachment_photo
+            BaseVkAttachmentItem.AttachmentType.Video -> R.drawable.ic_attachment_video
+            BaseVkAttachmentItem.AttachmentType.Audio -> R.drawable.ic_attachment_audio
+            BaseVkAttachmentItem.AttachmentType.File -> R.drawable.ic_attachment_file
+            BaseVkAttachmentItem.AttachmentType.Link -> R.drawable.ic_attachment_link
+            BaseVkAttachmentItem.AttachmentType.Voice -> R.drawable.ic_attachment_voice
+            BaseVkAttachmentItem.AttachmentType.MiniApp -> R.drawable.ic_attachment_mini_app
+            BaseVkAttachmentItem.AttachmentType.Sticker -> R.drawable.ic_attachment_sticker
+            BaseVkAttachmentItem.AttachmentType.Gift -> R.drawable.ic_attachment_gift
+            BaseVkAttachmentItem.AttachmentType.Wall -> R.drawable.ic_attachment_wall
+            BaseVkAttachmentItem.AttachmentType.Graffiti -> R.drawable.ic_attachment_graffiti
+            BaseVkAttachmentItem.AttachmentType.Poll -> R.drawable.ic_attachment_poll
+            BaseVkAttachmentItem.AttachmentType.WallReply -> R.drawable.ic_attachment_wall_reply
+            BaseVkAttachmentItem.AttachmentType.Call -> R.drawable.ic_attachment_call
+            BaseVkAttachmentItem.AttachmentType.GroupCallInProgress -> R.drawable.ic_attachment_group_call
+            BaseVkAttachmentItem.AttachmentType.Story -> R.drawable.ic_attachment_story
             else -> return null
         }
 
@@ -617,24 +613,25 @@ object VkUtils {
 
     fun getAttachmentTypeByClass(attachment: VkAttachment): BaseVkAttachmentItem.AttachmentType? {
         return when (attachment) {
-            is VkPhoto -> BaseVkAttachmentItem.AttachmentType.PHOTO
-            is VkVideo -> BaseVkAttachmentItem.AttachmentType.VIDEO
-            is VkAudio -> BaseVkAttachmentItem.AttachmentType.AUDIO
-            is VkFile -> BaseVkAttachmentItem.AttachmentType.FILE
-            is VkLink -> BaseVkAttachmentItem.AttachmentType.LINK
-            is VkMiniApp -> BaseVkAttachmentItem.AttachmentType.MINI_APP
-            is VkVoiceMessage -> BaseVkAttachmentItem.AttachmentType.VOICE
-            is VkSticker -> BaseVkAttachmentItem.AttachmentType.STICKER
-            is VkGift -> BaseVkAttachmentItem.AttachmentType.GIFT
-            is VkWall -> BaseVkAttachmentItem.AttachmentType.WALL
-            is VkGraffiti -> BaseVkAttachmentItem.AttachmentType.GRAFFITI
-            is VkPoll -> BaseVkAttachmentItem.AttachmentType.POLL
-            is VkWallReply -> BaseVkAttachmentItem.AttachmentType.WALL_REPLY
-            is VkCall -> BaseVkAttachmentItem.AttachmentType.CALL
-            is VkGroupCall -> BaseVkAttachmentItem.AttachmentType.GROUP_CALL_IN_PROGRESS
-            is VkEvent -> BaseVkAttachmentItem.AttachmentType.EVENT
-            is VkCurator -> BaseVkAttachmentItem.AttachmentType.CURATOR
-            is VkStory -> BaseVkAttachmentItem.AttachmentType.STORY
+            is VkPhoto -> BaseVkAttachmentItem.AttachmentType.Photo
+            is VkVideo -> BaseVkAttachmentItem.AttachmentType.Video
+            is VkAudio -> BaseVkAttachmentItem.AttachmentType.Audio
+            is VkFile -> BaseVkAttachmentItem.AttachmentType.File
+            is VkLink -> BaseVkAttachmentItem.AttachmentType.Link
+            is VkMiniApp -> BaseVkAttachmentItem.AttachmentType.MiniApp
+            is VkVoiceMessage -> BaseVkAttachmentItem.AttachmentType.Voice
+            is VkSticker -> BaseVkAttachmentItem.AttachmentType.Sticker
+            is VkGift -> BaseVkAttachmentItem.AttachmentType.Gift
+            is VkWall -> BaseVkAttachmentItem.AttachmentType.Wall
+            is VkGraffiti -> BaseVkAttachmentItem.AttachmentType.Graffiti
+            is VkPoll -> BaseVkAttachmentItem.AttachmentType.Poll
+            is VkWallReply -> BaseVkAttachmentItem.AttachmentType.WallReply
+            is VkCall -> BaseVkAttachmentItem.AttachmentType.Call
+            is VkGroupCall -> BaseVkAttachmentItem.AttachmentType.GroupCallInProgress
+            is VkEvent -> BaseVkAttachmentItem.AttachmentType.Event
+            is VkCurator -> BaseVkAttachmentItem.AttachmentType.Curator
+            is VkStory -> BaseVkAttachmentItem.AttachmentType.Story
+            is VkWidget -> BaseVkAttachmentItem.AttachmentType.Widget
             else -> null
         }
     }
@@ -645,42 +642,44 @@ object VkUtils {
         size: Int = 1
     ): String {
         return when (attachmentType) {
-            BaseVkAttachmentItem.AttachmentType.PHOTO ->
+            BaseVkAttachmentItem.AttachmentType.Photo ->
                 context.resources.getQuantityString(R.plurals.attachment_photos, size, size)
-            BaseVkAttachmentItem.AttachmentType.VIDEO ->
+            BaseVkAttachmentItem.AttachmentType.Video ->
                 context.resources.getQuantityString(R.plurals.attachment_videos, size, size)
-            BaseVkAttachmentItem.AttachmentType.AUDIO ->
+            BaseVkAttachmentItem.AttachmentType.Audio ->
                 context.resources.getQuantityString(R.plurals.attachment_audios, size, size)
-            BaseVkAttachmentItem.AttachmentType.FILE ->
+            BaseVkAttachmentItem.AttachmentType.File ->
                 context.resources.getQuantityString(R.plurals.attachment_files, size, size)
-            BaseVkAttachmentItem.AttachmentType.LINK ->
+            BaseVkAttachmentItem.AttachmentType.Link ->
                 context.resources.getString(R.string.message_attachments_link)
-            BaseVkAttachmentItem.AttachmentType.VOICE ->
+            BaseVkAttachmentItem.AttachmentType.Voice ->
                 context.resources.getString(R.string.message_attachments_voice)
-            BaseVkAttachmentItem.AttachmentType.MINI_APP ->
+            BaseVkAttachmentItem.AttachmentType.MiniApp ->
                 context.resources.getString(R.string.message_attachments_mini_app)
-            BaseVkAttachmentItem.AttachmentType.STICKER ->
+            BaseVkAttachmentItem.AttachmentType.Sticker ->
                 context.resources.getString(R.string.message_attachments_sticker)
-            BaseVkAttachmentItem.AttachmentType.GIFT ->
+            BaseVkAttachmentItem.AttachmentType.Gift ->
                 context.resources.getString(R.string.message_attachments_gift)
-            BaseVkAttachmentItem.AttachmentType.WALL ->
+            BaseVkAttachmentItem.AttachmentType.Wall ->
                 context.resources.getString(R.string.message_attachments_wall)
-            BaseVkAttachmentItem.AttachmentType.GRAFFITI ->
+            BaseVkAttachmentItem.AttachmentType.Graffiti ->
                 context.resources.getString(R.string.message_attachments_graffiti)
-            BaseVkAttachmentItem.AttachmentType.POLL ->
+            BaseVkAttachmentItem.AttachmentType.Poll ->
                 context.resources.getString(R.string.message_attachments_poll)
-            BaseVkAttachmentItem.AttachmentType.WALL_REPLY ->
+            BaseVkAttachmentItem.AttachmentType.WallReply ->
                 context.resources.getString(R.string.message_attachments_wall_reply)
-            BaseVkAttachmentItem.AttachmentType.CALL ->
+            BaseVkAttachmentItem.AttachmentType.Call ->
                 context.resources.getString(R.string.message_attachments_call)
-            BaseVkAttachmentItem.AttachmentType.GROUP_CALL_IN_PROGRESS ->
+            BaseVkAttachmentItem.AttachmentType.GroupCallInProgress ->
                 context.resources.getString(R.string.message_attachments_call_in_progress)
-            BaseVkAttachmentItem.AttachmentType.EVENT ->
+            BaseVkAttachmentItem.AttachmentType.Event ->
                 context.resources.getString(R.string.message_attachments_event)
-            BaseVkAttachmentItem.AttachmentType.CURATOR ->
+            BaseVkAttachmentItem.AttachmentType.Curator ->
                 context.resources.getString(R.string.message_attachments_curator)
-            BaseVkAttachmentItem.AttachmentType.STORY ->
+            BaseVkAttachmentItem.AttachmentType.Story ->
                 context.resources.getString(R.string.message_attachments_story)
+            BaseVkAttachmentItem.AttachmentType.Widget ->
+                context.resources.getString(R.string.message_attachments_widget)
             else -> attachmentType.value
         }
     }

app/src/main/kotlin/com/meloda/fast/api/model/VkConversation.kt

@@ -1,11 +1,11 @@
 package com.meloda.fast.api.model
 
-import android.os.Parcelable
 import androidx.lifecycle.MutableLiveData
 import androidx.room.Embedded
 import androidx.room.Entity
 import androidx.room.Ignore
 import androidx.room.PrimaryKey
+import com.meloda.fast.model.SelectableItem
 import kotlinx.parcelize.IgnoredOnParcel
 import kotlinx.parcelize.Parcelize
 
@@ -35,7 +35,7 @@ data class VkConversation(
 
     @Embedded(prefix = "lastMessage_")
     var lastMessage: VkMessage? = null,
-) : Parcelable {
+) : SelectableItem(id) {
 
     @Ignore
     @IgnoredOnParcel

app/src/main/kotlin/com/meloda/fast/api/model/VkMessage.kt

@@ -7,7 +7,7 @@ import androidx.room.PrimaryKey
 import com.meloda.fast.api.UserConfig
 import com.meloda.fast.api.VKConstants
 import com.meloda.fast.api.model.attachments.VkAttachment
-import com.meloda.fast.base.adapter.SelectableItem
+import com.meloda.fast.model.SelectableItem
 import com.meloda.fast.util.TimeUtils
 import kotlinx.parcelize.IgnoredOnParcel
 import kotlinx.parcelize.Parcelize
@@ -33,10 +33,8 @@ data class VkMessage(
 
     var forwards: List<VkMessage>? = null,
     var attachments: List<VkAttachment>? = null,
-
-//    @Embedded(prefix = "replyMessage_")
     var replyMessage: VkMessage? = null
-) : SelectableItem() {
+) : SelectableItem(id) {
 
     @Ignore
     @IgnoredOnParcel
@@ -53,8 +51,8 @@ data class VkMessage(
     fun isGroup() = fromId < 0
 
     fun isRead(conversation: VkConversation) =
-        if (isOut) conversation.outRead < id
-        else conversation.inRead < id
+        if (isOut) conversation.outRead - id >= 0
+        else conversation.inRead - id >= 0
 
     fun getPreparedAction(): Action? {
         if (action == null) return null

app/src/main/kotlin/com/meloda/fast/api/model/attachments/VkPhoto.kt

@@ -20,21 +20,30 @@ data class VkPhoto(
     val userId: Int?
 ) : VkAttachment() {
 
+    companion object {
+        const val SIZE_TYPE_75 = 's'
+        const val SIZE_TYPE_130 = 'm'
+        const val SIZE_TYPE_604 = 'x'
+        const val SIZE_TYPE_807 = 'y'
+        const val SIZE_TYPE_1080_1024 = 'z'
+        const val SIZE_TYPE_2560_2048 = 'w'
+    }
+
     @Ignore
     @IgnoredOnParcel
     private val sizesChars = Stack<Char>()
 
     init {
-        sizesChars.push('s')
-        sizesChars.push('m')
-        sizesChars.push('x')
+        sizesChars.push(SIZE_TYPE_75)
+        sizesChars.push(SIZE_TYPE_130)
+        sizesChars.push(SIZE_TYPE_604)
         sizesChars.push('o')
         sizesChars.push('p')
         sizesChars.push('q')
         sizesChars.push('r')
-        sizesChars.push('y')
-        sizesChars.push('z')
-        sizesChars.push('w')
+        sizesChars.push(SIZE_TYPE_807)
+        sizesChars.push(SIZE_TYPE_1080_1024)
+        sizesChars.push(SIZE_TYPE_2560_2048)
     }
 
     @IgnoredOnParcel
@@ -61,7 +70,7 @@ data class VkPhoto(
     }
 
     fun getSizeOrSmaller(type: Char): BaseVkPhoto.Size? {
-        val photoStack = sizesChars.clone() as Stack<Char>
+        val photoStack = sizesChars.clone() as Stack<*>
 
         val sizeIndex = photoStack.search(type)
 
@@ -72,7 +81,7 @@ data class VkPhoto(
         }
 
         for (i in 0 until photoStack.size) {
-            val size = getSizeOrNull(photoStack.peek())
+            val size = getSizeOrNull(photoStack.peek() as Char)
 
             if (size == null) {
                 photoStack.pop()

app/src/main/kotlin/com/meloda/fast/api/model/attachments/VkStory.kt

@@ -7,5 +7,11 @@ data class VkStory(
     val id: Int,
     val ownerId: Int,
     val date: Int,
-    val photo: VkPhoto
-) : VkAttachment()
+    val photo: VkPhoto?
+) : VkAttachment() {
+
+    fun isFromUser() = ownerId > 0
+
+    fun isFromGroup() = ownerId < 0
+
+}

app/src/main/kotlin/com/meloda/fast/api/model/attachments/VkVideo.kt

@@ -1,5 +1,6 @@
 package com.meloda.fast.api.model.attachments
 
+import android.os.Parcelable
 import com.meloda.fast.api.VkUtils
 import com.meloda.fast.api.model.base.attachments.BaseVkVideo
 import kotlinx.parcelize.IgnoredOnParcel
@@ -9,7 +10,7 @@ import kotlinx.parcelize.Parcelize
 data class VkVideo(
     val id: Int,
     val ownerId: Int,
-    val images: List<BaseVkVideo.Image>,
+    val images: List<VideoImage>,
     val firstFrames: List<BaseVkVideo.FirstFrame>?,
     val accessKey: String?
 ) : VkAttachment() {
@@ -17,10 +18,57 @@ data class VkVideo(
     @IgnoredOnParcel
     val className: String = this::class.java.name
 
-    fun imageForWidth(width: Int): BaseVkVideo.Image? {
+    fun imageForWidth(width: Int): VideoImage? {
         return images.find { it.width == width }
     }
 
+    fun imageForWidthAtLeast(width: Int): VideoImage? {
+        var certainImages = images.sortedByDescending { it.width }
+        var containsVertical = false
+        for (image in images) {
+            if (image.shapeKind == ShapeKind.Vertical) {
+                containsVertical = true
+                break
+            }
+        }
+
+        if (containsVertical) {
+            certainImages = certainImages.filter { it.shapeKind == ShapeKind.Vertical }
+        }
+
+        certainImages = certainImages.filter { it.width >= width }
+
+        return certainImages.firstOrNull()
+    }
+
+    @Parcelize
+    data class VideoImage(
+        val width: Int,
+        val height: Int,
+        val url: String,
+        val withPadding: Boolean
+    ) : Parcelable {
+
+        @IgnoredOnParcel
+        var shapeKind: ShapeKind
+
+        init {
+            val ratio = width.toFloat() / height.toFloat()
+
+            shapeKind = when {
+                ratio > 1 -> ShapeKind.Horizontal
+                ratio < 1 -> ShapeKind.Vertical
+                else -> ShapeKind.Square
+            }
+        }
+    }
+
+    sealed class ShapeKind {
+        object Vertical : ShapeKind()
+        object Horizontal : ShapeKind()
+        object Square : ShapeKind()
+    }
+
     override fun asString(withAccessKey: Boolean) = VkUtils.attachmentToString(
         attachmentClass = this::class.java,
         id = id,

app/src/main/kotlin/com/meloda/fast/api/model/attachments/VkVoiceMessage.kt

@@ -12,8 +12,8 @@ data class VkVoiceMessage(
     val linkOgg: String,
     val linkMp3: String,
     val accessKey: String,
-    val transcriptState: String,
-    val transcript: String
+    val transcriptState: String?,
+    val transcript: String?
 ) : VkAttachment() {
 
     @IgnoredOnParcel

app/src/main/kotlin/com/meloda/fast/api/model/attachments/VkWidget.kt

@@ -0,0 +1,8 @@
+package com.meloda.fast.api.model.attachments
+
+import kotlinx.parcelize.Parcelize
+
+@Parcelize
+data class VkWidget(
+    val id: Int
+) : VkAttachment()

app/src/main/kotlin/com/meloda/fast/api/model/base/BaseVkMessage.kt

@@ -8,17 +8,17 @@ import kotlinx.parcelize.Parcelize
 
 @Parcelize
 data class BaseVkMessage(
+    val id: Int,
+    val peer_id: Int,
     val date: Int,
     val from_id: Int,
-    val id: Int,
     val out: Int,
-    val peer_id: Int,
     val text: String,
     val conversation_message_id: Int,
-    val fwd_messages: List<BaseVkMessage>? = listOf(),
+    val fwd_messages: List<BaseVkMessage>? = emptyList(),
     val important: Boolean,
     val random_id: Int,
-    val attachments: List<BaseVkAttachmentItem> = listOf(),
+    val attachments: List<BaseVkAttachmentItem> = emptyList(),
     val is_hidden: Boolean,
     val payload: String,
     val geo: Geo?,
@@ -29,7 +29,7 @@ data class BaseVkMessage(
 
     fun asVkMessage() = VkMessage(
         id = id,
-        text = if (text.isBlank()) null else text,
+        text = text.ifBlank { null },
         isOut = out == 1,
         peerId = peer_id,
         fromId = from_id,

app/src/main/kotlin/com/meloda/fast/api/model/base/attachments/BaseVkAttachmentItem.kt

@@ -30,38 +30,40 @@ data class BaseVkAttachmentItem(
     val groupCall: BaseVkGroupCall?,
     val curator: BaseVkCurator?,
     val event: BaseVkEvent?,
-    val story: BaseVkStory?
+    val story: BaseVkStory?,
+    val widget: BaseVkWidget?
 ) : Parcelable {
 
     fun getPreparedType() = AttachmentType.parse(type)
 
     enum class AttachmentType(var value: String) {
-        UNKNOWN("unknown"),
-        PHOTO("photo"),
-        VIDEO("video"),
-        AUDIO("audio"),
-        FILE("doc"),
-        LINK("link"),
-        VOICE("audio_message"),
-        MINI_APP("mini_app"),
-        STICKER("sticker"),
-        GIFT("gift"),
-        WALL("wall"),
-        GRAFFITI("graffiti"),
-        POLL("poll"),
-        WALL_REPLY("wall_reply"),
-        CALL("call"),
-        GROUP_CALL_IN_PROGRESS("group_call_in_progress"),
-        CURATOR("curator"),
-        EVENT("event"),
-        STORY("story")
+        Unknown("unknown"),
+        Photo("photo"),
+        Video("video"),
+        Audio("audio"),
+        File("doc"),
+        Link("link"),
+        Voice("audio_message"),
+        MiniApp("mini_app"),
+        Sticker("sticker"),
+        Gift("gift"),
+        Wall("wall"),
+        Graffiti("graffiti"),
+        Poll("poll"),
+        WallReply("wall_reply"),
+        Call("call"),
+        GroupCallInProgress("group_call_in_progress"),
+        Curator("curator"),
+        Event("event"),
+        Story("story"),
+        Widget("widget")
         ;
 
         companion object {
-            fun parse(value: String): AttachmentType? {
-                val parsedValue = values().firstOrNull { it.value == value } ?: UNKNOWN
+            fun parse(value: String): AttachmentType {
+                val parsedValue = values().firstOrNull { it.value == value } ?: Unknown
 
-                if (parsedValue == UNKNOWN) {
+                if (parsedValue == Unknown) {
                     Log.e("AttachmentType", "Unknown attachment type: $value")
                 }
 

app/src/main/kotlin/com/meloda/fast/api/model/base/attachments/BaseVkEvent.kt

@@ -10,13 +10,11 @@ data class BaseVkEvent(
     val is_favorite: Boolean,
     val text: String,
     val address: String,
-    val friends: List<Int> = listOf(),
+    val friends: List<Int> = emptyList(),
     val member_status: Int,
     val time: Int
 ) : BaseVkAttachment() {
 
-    fun asVkEvent() = VkEvent(
-        id = id
-    )
+    fun asVkEvent() = VkEvent(id = id)
 
 }

app/src/main/kotlin/com/meloda/fast/api/model/base/attachments/BaseVkGroupCall.kt

@@ -1,6 +1,7 @@
 package com.meloda.fast.api.model.base.attachments
 
 import android.os.Parcelable
+import com.meloda.fast.api.model.attachments.VkGroupCall
 import kotlinx.parcelize.Parcelize
 
 @Parcelize
@@ -16,4 +17,6 @@ data class BaseVkGroupCall(
         val count: Int
     ) : Parcelable
 
+    fun asVkGroupCall() = VkGroupCall(initiatorId = initiator_id)
+
 }

app/src/main/kotlin/com/meloda/fast/api/model/base/attachments/BaseVkMiniApp.kt

@@ -2,6 +2,7 @@ package com.meloda.fast.api.model.base.attachments
 
 import android.os.Parcelable
 import com.google.gson.annotations.SerializedName
+import com.meloda.fast.api.model.attachments.VkMiniApp
 import kotlinx.parcelize.Parcelize
 
 @Parcelize
@@ -63,4 +64,6 @@ data class BaseVkMiniApp(
         val url: String
     ) : Parcelable
 
+    fun asVkMiniApp() = VkMiniApp(link = app.shareUrl)
+
 }

app/src/main/kotlin/com/meloda/fast/api/model/base/attachments/BaseVkPoll.kt

@@ -1,6 +1,7 @@
 package com.meloda.fast.api.model.base.attachments
 
 import android.os.Parcelable
+import com.meloda.fast.api.model.attachments.VkPoll
 import kotlinx.parcelize.Parcelize
 
 @Parcelize
@@ -55,7 +56,8 @@ data class BaseVkPoll(
             val color: String,
             val position: Double
         ) : Parcelable
-
     }
 
+    fun asVkPoll() = VkPoll(id = id)
+
 }

app/src/main/kotlin/com/meloda/fast/api/model/base/attachments/BaseVkStory.kt

@@ -17,7 +17,7 @@ data class BaseVkStory(
     val date: Int,
     val expires_at: Int,
     val is_ads: Boolean,
-    val photo: BaseVkPhoto,
+    val photo: BaseVkPhoto?,
     val replies: Replies,
     val is_one_time: Boolean,
     val track_code: String,
@@ -40,7 +40,7 @@ data class BaseVkStory(
         id = id,
         ownerId = owner_id,
         date = date,
-        photo = photo.asVkPhoto()
+        photo = photo?.asVkPhoto()
     )
 
     @Parcelize

app/src/main/kotlin/com/meloda/fast/api/model/base/attachments/BaseVkVideo.kt

@@ -41,18 +41,26 @@ data class BaseVkVideo(
     fun asVkVideo() = VkVideo(
         id = id,
         ownerId = owner_id,
-        images = image,
+        images = image.map { it.asVideoImage() },
         firstFrames = first_frame,
         accessKey = access_key
     )
 
     @Parcelize
     data class Image(
-        val height: Int,
         val width: Int,
+        val height: Int,
         val url: String,
-        val with_padding: Int
-    ) : Parcelable
+        val with_padding: Int?
+    ) : Parcelable {
+
+        fun asVideoImage() = VkVideo.VideoImage(
+            width = width,
+            height = height,
+            url = url,
+            withPadding = with_padding == 1
+        )
+    }
 
     @Parcelize
     data class FirstFrame(

app/src/main/kotlin/com/meloda/fast/api/model/base/attachments/BaseVkVoiceMessage.kt

@@ -13,8 +13,8 @@ data class BaseVkVoiceMessage(
     val link_ogg: String,
     val link_mp3: String,
     val access_key: String,
-    val transcript_state: String,
-    val transcript: String
+    val transcript_state: String?,
+    val transcript: String?
 ) : Parcelable {
 
     fun asVkVoiceMessage() = VkVoiceMessage(

app/src/main/kotlin/com/meloda/fast/api/model/base/attachments/BaseVkWallReply.kt

@@ -1,6 +1,7 @@
 package com.meloda.fast.api.model.base.attachments
 
 import android.os.Parcelable
+import com.meloda.fast.api.model.attachments.VkWallReply
 import kotlinx.parcelize.Parcelize
 
 @Parcelize
@@ -17,7 +18,6 @@ data class BaseVkWallReply(
     val reply_to_comment: Int?
 ) : Parcelable {
 
-
     @Parcelize
     data class Likes(
         val count: Int,
@@ -26,4 +26,6 @@ data class BaseVkWallReply(
         val can_publish: Int
     ) : Parcelable
 
+    fun asVkWallReply() = VkWallReply(id = id)
+
 }

app/src/main/kotlin/com/meloda/fast/api/model/base/attachments/BaseVkWidget.kt

@@ -0,0 +1,11 @@
+package com.meloda.fast.api.model.base.attachments
+
+import com.meloda.fast.api.model.attachments.VkWidget
+import kotlinx.parcelize.Parcelize
+
+@Parcelize
+data class BaseVkWidget(val id: Int) : BaseVkAttachment() {
+
+    fun asVkWidget() = VkWidget(id)
+
+}

app/src/main/kotlin/com/meloda/fast/api/network/AuthInterceptor.kt

@@ -2,6 +2,7 @@ package com.meloda.fast.api.network
 
 import com.meloda.fast.api.UserConfig
 import com.meloda.fast.api.VKConstants
+import com.meloda.fast.api.network.account.AccountUrls
 import okhttp3.Interceptor
 import okhttp3.Response
 import java.net.URLEncoder
@@ -12,10 +13,12 @@ class AuthInterceptor : Interceptor {
         val builder = chain.request().url.newBuilder()
             .addQueryParameter("v", URLEncoder.encode(VKConstants.API_VERSION, "utf-8"))
 
-        UserConfig.accessToken.let {
-            if (it.isNotBlank())
-                builder.addQueryParameter("access_token", URLEncoder.encode(it, "utf-8"))
-        }
+
+        if (!builder.build().toUrl().toString().contains(AccountUrls.SetOnline))
+            UserConfig.accessToken.let {
+                if (it.isNotBlank())
+                    builder.addQueryParameter("access_token", URLEncoder.encode(it, "utf-8"))
+            }
 
         // TODO: 9/29/2021 crash on timeout
         return chain.proceed(chain.request().newBuilder().apply { url(builder.build()) }.build())

app/src/main/kotlin/com/meloda/fast/api/network/VkUrls.kt

@@ -5,6 +5,36 @@ object VkUrls {
     const val OAUTH = "https://oauth.vk.com"
     const val API = "https://api.vk.com/method"
 
+    object Auth {
+        const val DirectAuth = "$OAUTH/token"
+        const val SendSms = "$API/auth.validatePhone"
+    }
+
+    object Conversations {
+        const val Get = "$API/messages.getConversations"
+        const val Delete = "$API/messages.deleteConversation"
+        const val Pin = "$API/messages.pinConversation"
+        const val Unpin = "$API/messages.unpinConversation"
+        const val ReorderPinned = "$API/messages.reorderPinnedConversations"
+    }
+
+    object Users {
+        const val GetById = "$API/users.get"
+    }
+
+    object Messages {
+        const val GetHistory = "$API/messages.getHistory"
+        const val Send = "$API/messages.send"
+        const val MarkAsImportant = "$API/messages.markAsImportant"
+        const val GetLongPollServer = "$API/messages.getLongPollServer"
+        const val GetLongPollHistory = "$API/messages.getLongPollHistory"
+        const val Pin = "$API/messages.pin"
+        const val Unpin = "$API/messages.unpin"
+        const val Delete = "$API/messages.delete"
+        const val Edit = "$API/messages.edit"
+    }
+
+
 }
 
 

app/src/main/kotlin/com/meloda/fast/api/network/account/AccountDataSource.kt

@@ -0,0 +1,15 @@
+package com.meloda.fast.api.network.account
+
+import javax.inject.Inject
+
+class AccountDataSource @Inject constructor(
+    private val repo: AccountRepo
+) {
+
+
+    suspend fun setOnline(params: AccountSetOnlineRequest) = repo.setOnline(params.map)
+
+    suspend fun setOffline(params: AccountSetOfflineRequest) = repo.setOffline(params.map)
+
+
+}

app/src/main/kotlin/com/meloda/fast/api/network/account/AccountRepo.kt

@@ -0,0 +1,17 @@
+package com.meloda.fast.api.network.account
+
+import com.meloda.fast.api.base.ApiResponse
+import com.meloda.fast.api.network.Answer
+import retrofit2.http.GET
+import retrofit2.http.POST
+import retrofit2.http.QueryMap
+
+interface AccountRepo {
+
+    @GET(AccountUrls.SetOnline)
+    suspend fun setOnline(@QueryMap params: Map<String, String>): Answer<ApiResponse<Any>>
+
+    @POST(AccountUrls.SetOffline)
+    suspend fun setOffline(@QueryMap params: Map<String, String>): Answer<ApiResponse<Any>>
+
+}

app/src/main/kotlin/com/meloda/fast/api/network/account/AccountRequests.kt

@@ -0,0 +1,20 @@
+package com.meloda.fast.api.network.account
+
+import com.meloda.fast.api.ApiExtensions.intString
+
+data class AccountSetOnlineRequest(
+    val voip: Boolean,
+    val accessToken: String
+) {
+
+    val map
+        get() = mutableMapOf(
+            "voip" to voip.intString,
+            "access_token" to accessToken
+        )
+
+}
+
+data class AccountSetOfflineRequest(val accessToken: String) {
+    val map get() = mutableMapOf("access_token" to accessToken)
+}

app/src/main/kotlin/com/meloda/fast/api/network/account/AccountUrls.kt

@@ -0,0 +1,10 @@
+package com.meloda.fast.api.network.account
+
+import com.meloda.fast.api.network.VkUrls
+
+object AccountUrls {
+
+    const val SetOnline = "${VkUrls.API}/account.setOnline"
+    const val SetOffline = "${VkUrls.API}/account.setOffline"
+
+}

app/src/main/kotlin/com/meloda/fast/api/network/auth/AuthDataSource.kt

@@ -6,7 +6,7 @@ class AuthDataSource @Inject constructor(
     private val repo: AuthRepo
 ) {
 
-    suspend fun auth(params: RequestAuthDirect) = repo.auth(params.map)
+    suspend fun auth(params: AuthDirectRequest) = repo.auth(params.map)
 
     suspend fun sendSms(validationSid: String) = repo.sendSms(validationSid)
 

app/src/main/kotlin/com/meloda/fast/api/network/auth/AuthRepo.kt

@@ -8,9 +8,9 @@ import retrofit2.http.QueryMap
 interface AuthRepo {
 
     @GET(AuthUrls.DirectAuth)
-    suspend fun auth(@QueryMap param: Map<String, String?>): Answer<ResponseAuthDirect>
+    suspend fun auth(@QueryMap param: Map<String, String?>): Answer<AuthDirectResponse>
 
     @GET(AuthUrls.SendSms)
-    suspend fun sendSms(@Query("sid") validationSid: String): Answer<ResponseSendSms>
+    suspend fun sendSms(@Query("sid") validationSid: String): Answer<SendSmsResponse>
 
 }

app/src/main/kotlin/com/meloda/fast/api/network/auth/AuthRequest.kt

@@ -1,23 +1,25 @@
 package com.meloda.fast.api.network.auth
 
 import android.os.Parcelable
-import com.google.gson.annotations.SerializedName
+import com.meloda.fast.BuildConfig
+import com.meloda.fast.api.VKConstants
 import kotlinx.parcelize.Parcelize
 
 @Parcelize
-data class RequestAuthDirect(
-    @SerializedName("grant_type") val grantType: String,
-    @SerializedName("client_id") val clientId: String,
-    @SerializedName("client_secret") val clientSecret: String,
-    @SerializedName("username") val username: String,
-    @SerializedName("password") val password: String,
-    @SerializedName("scope") val scope: String,
-    @SerializedName("2fa_supported") val twoFaSupported: Boolean = true,
-    @SerializedName("force_sms") val twoFaForceSms: Boolean = false,
-    @SerializedName("code") val twoFaCode: String? = null,
-    @SerializedName("captcha_sid") val captchaSid: String? = null,
-    @SerializedName("captcha_key") val captchaKey: String? = null,
+data class AuthDirectRequest(
+    val grantType: String,
+    val clientId: String,
+    val clientSecret: String,
+    val username: String,
+    val password: String,
+    val scope: String,
+    val twoFaSupported: Boolean = true,
+    val twoFaForceSms: Boolean = false,
+    val twoFaCode: String? = null,
+    val captchaSid: String? = null,
+    val captchaKey: String? = null,
 ) : Parcelable {
+
     val map
         get() = mutableMapOf(
             "grant_type" to grantType,
@@ -28,10 +30,38 @@ data class RequestAuthDirect(
             "scope" to scope,
             "2fa_supported" to if (twoFaSupported) "1" else "0",
             "force_sms" to if (twoFaForceSms) "1" else "0"
-            )
+        )
             .apply {
                 twoFaCode?.let { this["code"] = it }
                 captchaSid?.let { this["captcha_sid"] = it }
                 captchaKey?.let { this["captcha_key"] = it }
             }
+}
+
+@Parcelize
+data class AuthWithAppRequest(
+    val redirectUrl: String = "https://oauth.vk.com/blank.html",
+    val display: String = "page",
+    val responseType: String = "token",
+    val accessToken: String,
+    val revoke: Int = 1,
+    val scope: Int = 136297695,
+    val clientId: String = VKConstants.FAST_APP_ID,
+    val sdkPackage: String = BuildConfig.sdkPackage,
+    val sdkFingerprint: String = BuildConfig.sdkFingerprint
+) : Parcelable {
+
+    val map
+        get() = mutableMapOf(
+            "redirect_url" to redirectUrl,
+            "display" to display,
+            "response_type" to responseType,
+            "access_token" to accessToken,
+            "revoke" to revoke.toString(),
+            "scope" to scope.toString(),
+            "client_id" to clientId,
+            "sdk_package" to sdkPackage,
+            "sdk_fingerprint" to sdkFingerprint
+        )
+
 }

app/src/main/kotlin/com/meloda/fast/api/network/auth/AuthResponse.kt

@@ -5,7 +5,7 @@ import com.google.gson.annotations.SerializedName
 import kotlinx.parcelize.Parcelize
 
 @Parcelize
-data class ResponseAuthDirect(
+data class AuthDirectResponse(
     @SerializedName("access_token") val accessToken: String? = null,
     @SerializedName("user_id") val userId: Int? = null,
     @SerializedName("trusted_hash") val twoFaHash: String? = null,
@@ -13,7 +13,7 @@ data class ResponseAuthDirect(
 ) : Parcelable
 
 @Parcelize
-data class ResponseSendSms(
+data class SendSmsResponse(
     @SerializedName("sid") val validationSid: String?,
     @SerializedName("delay") val delay: Int?,
     @SerializedName("validation_type") val validationType: String?,

app/src/main/kotlin/com/meloda/fast/api/network/longpoll/LongPollRepo.kt

@@ -1,18 +1,17 @@
 package com.meloda.fast.api.network.longpoll
 
-import com.meloda.fast.api.base.ApiResponse
+import com.google.gson.JsonObject
 import com.meloda.fast.api.network.Answer
-import org.json.JSONObject
 import retrofit2.http.GET
-import retrofit2.http.Path
 import retrofit2.http.QueryMap
+import retrofit2.http.Url
 
 interface LongPollRepo {
 
-    @GET("https://{serverUrl}")
+    @GET
     suspend fun getResponse(
-        @Path("serverUrl") serverUrl: String,
+        @Url serverUrl: String,
         @QueryMap params: Map<String, String>
-    ): Answer<ApiResponse<JSONObject>>
+    ): Answer<JsonObject>
 
 }

app/src/main/kotlin/com/meloda/fast/api/network/longpoll/LongPollRequests.kt

@@ -0,0 +1,24 @@
+package com.meloda.fast.api.network.longpoll
+
+import android.os.Parcelable
+import kotlinx.parcelize.Parcelize
+
+@Parcelize
+data class LongPollGetUpdatesRequest(
+    val act: String = "a_check",
+    val key: String,
+    val ts: Int,
+    val wait: Int,
+    val mode: Int
+) : Parcelable {
+
+    val map
+        get() = mutableMapOf(
+            "act" to act,
+            "key" to key,
+            "ts" to ts.toString(),
+            "wait" to wait.toString(),
+            "mode" to mode.toString()
+        )
+
+}

app/src/main/kotlin/com/meloda/fast/api/network/messages/MessagesDataSource.kt

@@ -1,40 +1,50 @@
 package com.meloda.fast.api.network.messages
 
 import com.meloda.fast.api.model.VkMessage
+import com.meloda.fast.api.network.longpoll.LongPollGetUpdatesRequest
+import com.meloda.fast.api.network.longpoll.LongPollRepo
 import com.meloda.fast.database.dao.MessagesDao
 import javax.inject.Inject
 
 class MessagesDataSource @Inject constructor(
-    private val repo: MessagesRepo,
-    private val dao: MessagesDao
+    private val messagesRepo: MessagesRepo,
+    private val messagesDao: MessagesDao,
+    private val longPollRepo: LongPollRepo
 ) {
 
+    suspend fun store(messages: List<VkMessage>) = messagesDao.insert(messages)
+
+    suspend fun getCached(peerId: Int) = messagesDao.getByPeerId(peerId)
+
     suspend fun getHistory(params: MessagesGetHistoryRequest) =
-        repo.getHistory(params.map)
+        messagesRepo.getHistory(params.map)
 
     suspend fun send(params: MessagesSendRequest) =
-        repo.send(params.map)
+        messagesRepo.send(params.map)
 
     suspend fun markAsImportant(params: MessagesMarkAsImportantRequest) =
-        repo.markAsImportant(params.map)
+        messagesRepo.markAsImportant(params.map)
 
     suspend fun getLongPollServer(params: MessagesGetLongPollServerRequest) =
-        repo.getLongPollServer(params.map)
+        messagesRepo.getLongPollServer(params.map)
 
     suspend fun pin(params: MessagesPinMessageRequest) =
-        repo.pin(params.map)
+        messagesRepo.pin(params.map)
 
     suspend fun unpin(params: MessagesUnPinMessageRequest) =
-        repo.unpin(params.map)
+        messagesRepo.unpin(params.map)
 
     suspend fun delete(params: MessagesDeleteRequest) =
-        repo.delete(params.map)
+        messagesRepo.delete(params.map)
 
     suspend fun edit(params: MessagesEditRequest) =
-        repo.edit(params.map)
+        messagesRepo.edit(params.map)
 
-    suspend fun store(messages: List<VkMessage>) = dao.insert(messages)
-
-    suspend fun getCached(peerId: Int) = dao.getByPeerId(peerId)
+    suspend fun getLongPollUpdates(
+        serverUrl: String,
+        params: LongPollGetUpdatesRequest
+    ) = longPollRepo.getResponse(serverUrl, params.map)
 
+    suspend fun getById(params: MessagesGetByIdRequest) =
+        messagesRepo.getById(params.map)
 }

app/src/main/kotlin/com/meloda/fast/api/network/messages/MessagesRepo.kt

@@ -42,4 +42,8 @@ interface MessagesRepo {
     @POST(MessagesUrls.Edit)
     suspend fun edit(@FieldMap params: Map<String, String>): Answer<ApiResponse<Any>>
 
+    @FormUrlEncoded
+    @POST(MessagesUrls.GetById)
+    suspend fun getById(@FieldMap params: Map<String, String>): Answer<ApiResponse<MessagesGetByIdResponse>>
+
 }

app/src/main/kotlin/com/meloda/fast/api/network/messages/MessagesRequest.kt

@@ -40,7 +40,8 @@ data class MessagesSendRequest(
     val replyTo: Int? = null,
     val stickerId: Int? = null,
     val disableMentions: Boolean? = null,
-    val dontParseLinks: Boolean? = null
+    val dontParseLinks: Boolean? = null,
+    val silent: Boolean? = null
 ) : Parcelable {
 
     val map
@@ -55,6 +56,7 @@ data class MessagesSendRequest(
             stickerId?.let { this["sticker_id"] = it.toString() }
             disableMentions?.let { this["disable_mentions"] = it.intString }
             dontParseLinks?.let { this["dont_parse_links"] = it.intString }
+            silent?.let { this["silent"] = it.toString() }
         }
 }
 
@@ -165,4 +167,21 @@ data class MessagesEditRequest(
             }
         }
 
+}
+
+@Parcelize
+data class MessagesGetByIdRequest(
+    val messagesIds: List<Int>,
+    val extended: Boolean? = null,
+    val fields: String? = null
+) : Parcelable {
+
+    val map
+        get() = mutableMapOf(
+            "message_ids" to messagesIds.joinToString { it.toString() },
+        ).apply {
+            extended?.let { this["extended"] = it.intString }
+            fields?.let { this["fields"] = it }
+        }
+
 }

app/src/main/kotlin/com/meloda/fast/api/network/messages/MessagesResponse.kt

@@ -10,8 +10,16 @@ import kotlinx.parcelize.Parcelize
 @Parcelize
 data class MessagesGetHistoryResponse(
     val count: Int,
-    val items: List<BaseVkMessage> = listOf(),
+    val items: List<BaseVkMessage> = emptyList(),
     val conversations: List<BaseVkConversation>?,
     val profiles: List<BaseVkUser>?,
     val groups: List<BaseVkGroup>?
+) : Parcelable
+
+@Parcelize
+data class MessagesGetByIdResponse(
+    val count: Int,
+    val items: List<BaseVkMessage> = emptyList(),
+    val profiles: List<BaseVkUser>?,
+    val groups: List<BaseVkGroup>?
 ) : Parcelable

app/src/main/kotlin/com/meloda/fast/api/network/messages/MessagesUrls.kt

@@ -13,5 +13,6 @@ object MessagesUrls {
     const val Unpin = "${VkUrls.API}/messages.unpin"
     const val Delete = "${VkUrls.API}/messages.delete"
     const val Edit = "${VkUrls.API}/messages.edit"
+    const val GetById = "${VkUrls.API}/messages.getById"
 
 }

app/src/main/kotlin/com/meloda/fast/base/BaseActivity.kt

@@ -1,40 +1,12 @@
 package com.meloda.fast.base
 
-import android.os.Bundle
 import androidx.annotation.LayoutRes
 import androidx.appcompat.app.AppCompatActivity
-import androidx.lifecycle.Lifecycle
-import androidx.lifecycle.LifecycleOwner
-import androidx.lifecycle.LifecycleRegistry
 
-abstract class BaseActivity : AppCompatActivity, LifecycleOwner {
+abstract class BaseActivity : AppCompatActivity {
 
     constructor() : super()
 
     constructor(@LayoutRes resId: Int) : super(resId)
 
-    protected lateinit var lifecycleRegistry: LifecycleRegistry
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-
-        lifecycleRegistry = LifecycleRegistry(this)
-        lifecycleRegistry.currentState = Lifecycle.State.CREATED
-    }
-
-    override fun onStart() {
-        super.onStart()
-        lifecycleRegistry.currentState = Lifecycle.State.STARTED
-    }
-
-    override fun onResume() {
-        super.onResume()
-        lifecycleRegistry.currentState = Lifecycle.State.RESUMED
-    }
-
-    override fun onDestroy() {
-        super.onDestroy()
-        lifecycleRegistry.currentState = Lifecycle.State.DESTROYED
-    }
-
 }

app/src/main/kotlin/com/meloda/fast/base/ResourceManager.kt

@@ -0,0 +1,20 @@
+package com.meloda.fast.base
+
+import android.content.Context
+import androidx.annotation.ColorInt
+import androidx.annotation.ColorRes
+import androidx.annotation.StringRes
+import androidx.core.content.ContextCompat
+
+abstract class ResourceManager(protected val context: Context) {
+
+    protected fun getString(@StringRes resId: Int): String {
+        return context.getString(resId)
+    }
+
+    @ColorInt
+    protected fun getColor(@ColorRes resId: Int): Int {
+        return ContextCompat.getColor(context, resId)
+    }
+
+}

app/src/main/kotlin/com/meloda/fast/base/adapter/BaseAdapter.kt

@@ -1,115 +1,187 @@
 package com.meloda.fast.base.adapter
 
+import android.annotation.SuppressLint
 import android.content.Context
 import android.view.LayoutInflater
 import android.view.View
-import android.view.ViewGroup
 import android.widget.AdapterView
 import androidx.recyclerview.widget.DiffUtil
 import androidx.recyclerview.widget.ListAdapter
+import com.meloda.fast.model.DataItem
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 
-@Suppress("MemberVisibilityCanBePrivate", "unused")
-abstract class BaseAdapter<Item, VH : BaseHolder>(
+@Suppress("MemberVisibilityCanBePrivate", "unused", "UNCHECKED_CAST")
+@SuppressLint("NotifyDataSetChanged")
+abstract class BaseAdapter<T : DataItem<*>, VH : BaseHolder> constructor(
     var context: Context,
-    values: MutableList<Item>,
-    diffUtil: DiffUtil.ItemCallback<Item>
-) : ListAdapter<Item, VH>(diffUtil) {
+    diffUtil: DiffUtil.ItemCallback<T>,
+    preAddedValues: List<T> = emptyList(),
+) : ListAdapter<T, VH>(diffUtil) {
 
-    val cleanValues = mutableListOf<Item>()
-    val values = mutableListOf<Item>()
-
-    init {
-        addAll(values)
-    }
+    protected val adapterScope = CoroutineScope(Dispatchers.Default)
+    private val cleanList = mutableListOf<T>()
 
     protected var inflater: LayoutInflater = LayoutInflater.from(context)
 
-    var itemClickListener: ((position: Int) -> Unit) = {}
-    var itemLongClickListener: ((position: Int) -> Boolean) = { false }
+    var itemClickListener: ((position: Int) -> Unit)? = null
+    var itemLongClickListener: ((position: Int) -> Boolean)? = null
+
+    init {
+        cleanList.addAll(preAddedValues)
+        addAll(preAddedValues)
+    }
+
+    fun cloneCurrentList(): MutableList<T> {
+        return ArrayList(currentList)
+    }
 
     open fun destroy() {}
 
-    override fun getItem(position: Int): Item {
-        return values[position]
+    fun getOrNull(position: Int): T? {
+        return if (position >= 0 && position <= currentList.lastIndex) get(position) else null
     }
 
-    fun getOrNull(position: Int): Item? {
-        return if (position >= 0 && position <= values.lastIndex) get(position) else null
-    }
-
-    fun getOrElse(position: Int, defaultValue: (Int) -> Item): Item {
-        return if (position >= 0 && position <= values.lastIndex) get(position)
+    fun getOrElse(position: Int, defaultValue: (Int) -> T): T {
+        return if (position >= 0 && position <= currentList.lastIndex) get(position)
         else defaultValue(position)
     }
 
-    fun add(position: Int, item: Item) {
-        values.add(position, item)
-        cleanValues.add(position, item)
+    fun add(
+        item: T,
+        position: Int? = null,
+        beforeFooter: Boolean = false,
+        commitCallback: (() -> Unit)? = null
+    ) = addAll(listOf(item), position, beforeFooter, commitCallback)
+
+    fun addAll(
+        items: List<T>,
+        position: Int? = null,
+        beforeFooter: Boolean = false,
+        commitCallback: (() -> Unit)? = null
+    ) {
+        adapterScope.launch {
+            val newList = cloneCurrentList()
+            if (position == null) {
+                val mutableItems = items.toMutableList()
+                if (beforeFooter && newList.lastOrNull() is DataItem.Footer) {
+                    newList.removeLastOrNull()
+                }
+
+                if (beforeFooter) {
+                    mutableItems += DataItem.Footer as T
+                }
+
+                newList.addAll(mutableItems)
+                cleanList.addAll(mutableItems)
+            } else {
+                newList.addAll(position, items)
+                cleanList.addAll(position, items)
+            }
+
+            withContext(Dispatchers.Main) {
+                submitList(newList, commitCallback)
+            }
+        }
     }
 
-    fun add(item: Item) {
-        values += item
-        cleanValues.add(item)
+    fun remove(item: T, commitCallback: (() -> Unit)? = null) =
+        removeAll(listOf(item), commitCallback)
+
+    fun removeAll(items: List<T>, commitCallback: (() -> Unit)? = null) {
+        val newList = cloneCurrentList()
+        newList.removeAll(items)
+        submitList(newList, commitCallback)
+
+        cleanList.removeAll(items)
     }
 
-    fun addAll(items: List<Item>) {
-        values += items
-        cleanValues.addAll(items)
+    fun removeAt(index: Int, commitCallback: (() -> Unit)? = null) {
+        val newList = cloneCurrentList()
+        newList.removeAt(index)
+        submitList(newList, commitCallback)
+
+        cleanList.removeAt(index)
     }
 
-    fun addAll(position: Int, items: List<Item>) {
-        values.addAll(position, items)
-        cleanValues.addAll(position, items)
+    fun clear(commitCallback: (() -> Unit)? = null) = removeAll(currentList, commitCallback)
+
+    fun setItem(
+        item: T,
+        withHeader: Boolean = false,
+        withFooter: Boolean = false,
+        commitCallback: (() -> Unit)? = null
+    ) = setItems(listOf(item), withHeader, withFooter, commitCallback)
+
+    @Suppress("UNCHECKED_CAST")
+    fun setItems(
+        list: List<T>?,
+        withHeader: Boolean = false,
+        withFooter: Boolean = false,
+        commitCallback: (() -> Unit)? = null
+    ) {
+        adapterScope.launch {
+            val items = mutableListOf<T>()
+            if (withHeader) items.add(DataItem.Header as T)
+            if (!list.isNullOrEmpty()) items.addAll(list)
+            if (withFooter) items.add(DataItem.Footer as T)
+
+            withContext(Dispatchers.Main) {
+                if (items == currentList) {
+                    refreshList()
+                } else {
+                    submitList(items, commitCallback)
+                }
+            }
+        }
     }
 
-    fun removeAll(items: List<Item>) {
-        values.removeAll(items)
-        cleanValues.removeAll(items)
+    fun indexOf(item: T): Int {
+        return currentList.indexOf(item)
     }
 
-    fun removeAt(index: Int) {
-        values.removeAt(index)
-        cleanValues.removeAt(index)
+    val indices get() = currentList.indices
+
+    operator fun get(position: Int): T {
+        return currentList[position]
     }
 
-    fun remove(item: Item) {
-        values.remove(item)
-        cleanValues.remove(item)
+    operator fun set(position: Int, item: T) = setItem(position, item)
+
+    fun setItem(position: Int, item: T, commitCallback: (() -> Unit)? = null) {
+        val newList = cloneCurrentList()
+        newList[position] = item
+        submitList(newList, commitCallback)
+
+        cleanList[position] = item
     }
 
-    fun clear() {
-        values.clear()
-        cleanValues.clear()
+    fun isEmpty() = currentList.isEmpty()
+    fun isNotEmpty() = currentList.isNotEmpty()
+
+    @SuppressLint("NotifyDataSetChanged")
+    fun refreshList() {
+        notifyDataSetChanged()
     }
 
-    operator fun get(position: Int): Item {
-        return values[position]
+    fun updateCleanList(list: List<T>?) {
+        cleanList.clear()
+        list?.run { cleanList.addAll(this) }
     }
 
-    operator fun set(position: Int, item: Item) {
-        values[position] = item
-        cleanValues[position] = item
+    override fun submitList(list: List<T>?) {
+        super.submitList(list)
+        updateCleanList(list)
     }
 
-    open fun notifyChanges(oldList: List<Item>, newList: List<Item>) {}
-
-    fun isEmpty() = values.isEmpty()
-    fun isNotEmpty() = values.isNotEmpty()
-
-    fun view(resId: Int, viewGroup: ViewGroup, attachToRoot: Boolean = false): View {
-        return inflater.inflate(resId, viewGroup, attachToRoot)
-    }
-
-    fun updateValues(list: MutableList<Item>) {
-        values.clear()
-        values += list
+    override fun submitList(list: List<T>?, commitCallback: Runnable?) {
+        super.submitList(list, commitCallback)
+        updateCleanList(list)
     }
 
     override fun onBindViewHolder(holder: VH, position: Int) {
-        onBindItemViewHolder(holder, position)
-    }
-
-    private fun onBindItemViewHolder(holder: VH, position: Int) {
         initListeners(holder.itemView, position)
         holder.bind(position)
     }
@@ -117,15 +189,16 @@ abstract class BaseAdapter<Item, VH : BaseHolder>(
     protected open fun initListeners(itemView: View, position: Int) {
         if (itemView is AdapterView<*>) return
 
-        itemView.setOnClickListener { itemClickListener.invoke(position) }
-        itemView.setOnLongClickListener { itemLongClickListener.invoke(position) }
+        itemView.setOnClickListener { itemClickListener?.invoke(position) }
+        itemView.setOnLongClickListener {
+            itemLongClickListener?.invoke(position)
+            return@setOnLongClickListener itemClickListener != null
+        }
     }
 
     override fun getItemCount(): Int {
-        return values.size
+        return currentList.size
     }
 
-    val lastPosition
-        get() = itemCount - 1
-
-}
+    val lastPosition get() = currentList.lastIndex
+}

app/src/main/kotlin/com/meloda/fast/base/adapter/EmptyHeaderAdapter.kt

@@ -5,6 +5,7 @@ import android.view.View
 import android.view.ViewGroup
 import androidx.core.view.isInvisible
 import androidx.recyclerview.widget.RecyclerView
+import com.meloda.fast.extensions.dpToPx
 import com.meloda.fast.util.AndroidUtils
 import kotlin.math.roundToInt
 
@@ -24,7 +25,7 @@ class EmptyHeaderAdapter(
     private fun generateHeaderView() = View(context).apply {
         layoutParams = ViewGroup.LayoutParams(
             ViewGroup.LayoutParams.MATCH_PARENT,
-            AndroidUtils.px(56).roundToInt()
+            56.dpToPx()
         )
         isClickable = false
         isEnabled = false

app/src/main/kotlin/com/meloda/fast/base/adapter/Items.kt

@@ -1,15 +0,0 @@
-package com.meloda.fast.base.adapter
-
-import android.os.Parcelable
-import androidx.room.Ignore
-import kotlinx.parcelize.IgnoredOnParcel
-import kotlinx.parcelize.Parcelize
-
-@Parcelize
-open class SelectableItem : Parcelable {
-
-    @Ignore
-    @IgnoredOnParcel
-    var isSelected: Boolean = false
-
-}

app/src/main/kotlin/com/meloda/fast/base/viewmodel/Events.kt

@@ -16,4 +16,8 @@ data class ValidationEvent(val sid: String) : VkEvent()
 object StartProgressEvent : VkEvent()
 object StopProgressEvent : VkEvent()
 
-abstract class VkEvent
+abstract class VkEvent
+
+interface VkEventCallback<in T : Any> {
+    fun onEvent(event: T)
+}

app/src/main/kotlin/com/meloda/fast/common/AppGlobal.kt

@@ -30,7 +30,7 @@ class AppGlobal : Application() {
         lateinit var preferences: SharedPreferences
         lateinit var resources: Resources
         lateinit var packageName: String
-        lateinit var instance: AppGlobal
+        private lateinit var instance: AppGlobal
 
         lateinit var appDatabase: AppDatabase
 
@@ -41,6 +41,8 @@ class AppGlobal : Application() {
 
         var screenWidth = 0
         var screenHeight = 0
+
+        val Instance get() = instance
     }
 
     override fun onCreate() {
@@ -51,9 +53,7 @@ class AppGlobal : Application() {
             ACRA.init(this)
         }
 
-        appDatabase = Room.databaseBuilder(
-            this, AppDatabase::class.java, "cache"
-        )
+        appDatabase = Room.databaseBuilder(this, AppDatabase::class.java, "cache")
             .fallbackToDestructiveMigration()
             .build()
 
@@ -85,10 +85,8 @@ class AppGlobal : Application() {
             "width: $screenWidth; height: $screenHeight; density: $density; diagonal: $diagonal; dpiDensity: $densityDpi; scaledDensity: $densityScaled; xDpi: $xDpi; yDpi: $yDpi"
         )
 
-
         inputMethodManager = getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
         connectivityManager = getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
         clipboardManager = getSystemService(Context.CLIPBOARD_SERVICE) as ClipboardManager
     }
-
 }

app/src/main/kotlin/com/meloda/fast/common/Screens.kt

@@ -0,0 +1,17 @@
+package com.meloda.fast.common
+
+import android.os.Bundle
+import com.github.terrakok.cicerone.androidx.FragmentScreen
+import com.meloda.fast.screens.conversations.ConversationsFragment
+import com.meloda.fast.screens.login.LoginFragment
+import com.meloda.fast.screens.main.MainFragment
+import com.meloda.fast.screens.messages.MessagesHistoryFragment
+
+@Suppress("FunctionName")
+object Screens {
+    fun Main() = FragmentScreen { MainFragment() }
+    fun Login() = FragmentScreen { LoginFragment() }
+    fun Conversations() = FragmentScreen { ConversationsFragment() }
+    fun MessagesHistory(bundle: Bundle) =
+        FragmentScreen { MessagesHistoryFragment.newInstance(bundle) }
+}

app/src/main/kotlin/com/meloda/fast/database/AppDatabase.kt

@@ -19,7 +19,7 @@ import com.meloda.fast.database.dao.UsersDao
         VkUser::class,
         VkGroup::class
     ],
-    version = 26,
+    version = 28,
     exportSchema = false,
 )
 @TypeConverters(Converters::class)

app/src/main/kotlin/com/meloda/fast/database/Converters.kt

@@ -5,17 +5,19 @@ import com.google.gson.Gson
 import com.meloda.fast.api.model.VkMessage
 import com.meloda.fast.api.model.attachments.VkAttachment
 import org.json.JSONObject
-import java.util.stream.Collectors
 
+@Suppress("UnnecessaryVariable")
 class Converters {
 
+    private companion object {
+        private const val CACHE_SEPARATOR = "fastkruta228355"
+    }
+
     @TypeConverter
     fun fromListVkMessageToString(messages: List<VkMessage>?): String? {
         if (messages == null) return null
 
-        val string =
-            messages.map { fromVkMessageToString(it)!! }.stream()
-                .collect(Collectors.joining("fastkruta228355"))
+        val string = messages.map { fromVkMessageToString(it)!! }.joinToString { CACHE_SEPARATOR }
 
         return string
     }
@@ -24,9 +26,9 @@ class Converters {
     fun fromStringToListVkMessage(string: String?): List<VkMessage>? {
         if (string == null) return null
 
-        if (string.contains("fastkruta228355")) {
+        if (string.contains(CACHE_SEPARATOR)) {
             val messages =
-                string.split("fastkruta228355").map { fromStringToVkMessage(it)!! }
+                string.split(CACHE_SEPARATOR).map { fromStringToVkMessage(it)!! }
             return messages
         }
 
@@ -55,8 +57,7 @@ class Converters {
         if (attachments == null) return null
 
         val string =
-            attachments.map { fromVkAttachmentToString(it)!! }.stream()
-                .collect(Collectors.joining("fastkruta228355"))
+            attachments.map { fromVkAttachmentToString(it)!! }.joinToString { CACHE_SEPARATOR }
 
         return string
     }
@@ -65,9 +66,9 @@ class Converters {
     fun fromStringToListVkAttachment(string: String?): List<VkAttachment>? {
         if (string == null) return null
 
-        if (string.contains("fastkruta228355")) {
+        if (string.contains(CACHE_SEPARATOR)) {
             val attachments =
-                string.split("fastkruta228355").map { fromStringToVkAttachment(it)!! }
+                string.split(CACHE_SEPARATOR).map { fromStringToVkAttachment(it)!! }
             return attachments
         }
 

app/src/main/kotlin/com/meloda/fast/di/NavigationModule.kt

@@ -0,0 +1,25 @@
+package com.meloda.fast.di
+
+import com.github.terrakok.cicerone.Cicerone
+import com.github.terrakok.cicerone.Router
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import javax.inject.Singleton
+
+@InstallIn(SingletonComponent::class)
+@Module
+object NavigationModule {
+    @Provides
+    @Singleton
+    fun getCicerone(): Cicerone<Router> = Cicerone.create()
+
+    @Provides
+    @Singleton
+    fun getRouter(cicerone: Cicerone<Router>) = cicerone.router
+
+    @Provides
+    @Singleton
+    fun getNavigationHolder(cicerone: Cicerone<Router>) = cicerone.getNavigatorHolder()
+}

app/src/main/kotlin/com/meloda/fast/di/NetworkModule.kt

@@ -2,16 +2,19 @@ package com.meloda.fast.di
 
 import com.google.gson.Gson
 import com.google.gson.GsonBuilder
+import com.meloda.fast.api.LongPollUpdatesParser
 import com.meloda.fast.api.network.AuthInterceptor
 import com.meloda.fast.api.network.ResultCallFactory
-import com.meloda.fast.api.network.auth.AuthRepo
+import com.meloda.fast.api.network.account.AccountDataSource
+import com.meloda.fast.api.network.account.AccountRepo
 import com.meloda.fast.api.network.auth.AuthDataSource
+import com.meloda.fast.api.network.auth.AuthRepo
 import com.meloda.fast.api.network.conversations.ConversationsDataSource
 import com.meloda.fast.api.network.conversations.ConversationsRepo
 import com.meloda.fast.api.network.longpoll.LongPollRepo
 import com.meloda.fast.api.network.messages.MessagesDataSource
-import com.meloda.fast.api.network.users.UsersDataSource
 import com.meloda.fast.api.network.messages.MessagesRepo
+import com.meloda.fast.api.network.users.UsersDataSource
 import com.meloda.fast.api.network.users.UsersRepo
 import com.meloda.fast.database.dao.ConversationsDao
 import com.meloda.fast.database.dao.MessagesDao
@@ -67,22 +70,27 @@ object NetworkModule {
     fun provideAuthInterceptor(): AuthInterceptor = AuthInterceptor()
 
     @Provides
+    @Singleton
     fun provideAuthRepo(retrofit: Retrofit): AuthRepo =
         retrofit.create(AuthRepo::class.java)
 
     @Provides
+    @Singleton
     fun provideConversationsRepo(retrofit: Retrofit): ConversationsRepo =
         retrofit.create(ConversationsRepo::class.java)
 
     @Provides
+    @Singleton
     fun provideUsersRepo(retrofit: Retrofit): UsersRepo =
         retrofit.create(UsersRepo::class.java)
 
     @Provides
+    @Singleton
     fun provideMessagesRepo(retrofit: Retrofit): MessagesRepo =
         retrofit.create(MessagesRepo::class.java)
 
     @Provides
+    @Singleton
     fun provideLongPollRepo(retrofit: Retrofit): LongPollRepo =
         retrofit.create(LongPollRepo::class.java)
 
@@ -109,7 +117,27 @@ object NetworkModule {
     @Provides
     @Singleton
     fun provideMessagesDataSource(
-        repo: MessagesRepo,
-        dao: MessagesDao
-    ): MessagesDataSource = MessagesDataSource(repo, dao)
+        messagesRepo: MessagesRepo,
+        messagesDao: MessagesDao,
+        longPollRepo: LongPollRepo
+    ): MessagesDataSource = MessagesDataSource(
+        messagesRepo = messagesRepo,
+        messagesDao = messagesDao,
+        longPollRepo = longPollRepo
+    )
+
+    @Provides
+    @Singleton
+    fun provideLongPollUpdatesParser(messagesDataSource: MessagesDataSource): LongPollUpdatesParser =
+        LongPollUpdatesParser(messagesDataSource)
+
+    @Provides
+    @Singleton
+    fun provideAccountRepo(retrofit: Retrofit): AccountRepo =
+        retrofit.create(AccountRepo::class.java)
+
+    @Provides
+    @Singleton
+    fun provideAccountDataSource(repo: AccountRepo): AccountDataSource =
+        AccountDataSource(repo)
 }

app/src/main/kotlin/com/meloda/fast/extensions/Ext.kt

@@ -0,0 +1,87 @@
+package com.meloda.fast.extensions
+
+import android.animation.ValueAnimator
+import android.content.res.Resources
+import android.os.Build
+import android.os.Parcelable
+import android.util.DisplayMetrics
+import android.util.SparseArray
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageView
+import android.widget.TextView
+import androidx.annotation.Px
+import androidx.annotation.StyleRes
+import androidx.core.view.children
+
+fun Int.dpToPx(): Int {
+    val metrics = Resources.getSystem().displayMetrics
+    return (this * (metrics.densityDpi.toFloat() / DisplayMetrics.DENSITY_DEFAULT)).toInt()
+}
+
+fun Float.dpToPx(): Int {
+    val metrics = Resources.getSystem().displayMetrics
+    return (this * (metrics.densityDpi.toFloat() / DisplayMetrics.DENSITY_DEFAULT)).toInt()
+}
+
+fun TextView.clear() {
+    text = null
+}
+
+fun ViewGroup.saveChildViewStates(): SparseArray<Parcelable> {
+    val childViewStates = SparseArray<Parcelable>()
+    children.forEach { child -> child.saveHierarchyState(childViewStates) }
+    return childViewStates
+}
+
+fun ViewGroup.restoreChildViewStates(childViewStates: SparseArray<Parcelable>) {
+    children.forEach { child -> child.restoreHierarchyState(childViewStates) }
+}
+
+fun View.invisible() = run { visibility = View.INVISIBLE }
+
+fun View.visible() = run { visibility = View.VISIBLE }
+fun View.gone() = run { visibility = View.GONE }
+
+@JvmOverloads
+fun View.toggleVisibility(visible: Boolean?, visibilityWhenFalse: Int = View.GONE) =
+    run { visibility = if (visible == true) View.VISIBLE else visibilityWhenFalse }
+
+fun ValueAnimator.startWithIntValues(from: Int, to: Int) {
+    setIntValues(from, to)
+    start()
+}
+
+fun View.setMarginsPx(
+    @Px leftMargin: Int? = null,
+    @Px topMargin: Int? = null,
+    @Px rightMargin: Int? = null,
+    @Px bottomMargin: Int? = null
+) {
+    if (layoutParams is ViewGroup.MarginLayoutParams) {
+        val params = layoutParams as ViewGroup.MarginLayoutParams
+        leftMargin?.run { params.leftMargin = this }
+        topMargin?.run { params.topMargin = this }
+        rightMargin?.run { params.rightMargin = this }
+        bottomMargin?.run { params.bottomMargin = this }
+        requestLayout()
+    }
+}
+
+inline fun <T, K> Pair<T?, K?>.runIfElementsNotNull(block: (T, K) -> Unit) {
+    val firstCopy = first
+    val secondCopy = second
+    if (firstCopy != null && secondCopy != null) {
+        block(firstCopy, secondCopy)
+    }
+}
+
+@JvmOverloads
+fun ImageView.toggleVisibilityIfHasContent(visibilityWhenFalse: Int = View.GONE) {
+    visibility = if (drawable != null) View.VISIBLE else visibilityWhenFalse
+}
+
+@JvmOverloads
+fun TextView.toggleVisibilityIfHasContent(visibilityWhenFalse: Int = View.GONE) {
+    visibility = if (!text.isNullOrEmpty()) View.VISIBLE else visibilityWhenFalse
+}

app/src/main/kotlin/com/meloda/fast/extensions/GlideExt.kt

@@ -0,0 +1,139 @@
+package com.meloda.fast.extensions
+
+import android.graphics.Bitmap
+import android.graphics.Color
+import android.graphics.drawable.ColorDrawable
+import android.graphics.drawable.Drawable
+import android.net.Uri
+import android.widget.ImageView
+import com.bumptech.glide.Glide
+import com.bumptech.glide.Priority
+import com.bumptech.glide.load.DataSource
+import com.bumptech.glide.load.Transformation
+import com.bumptech.glide.load.engine.DiskCacheStrategy
+import com.bumptech.glide.load.engine.GlideException
+import com.bumptech.glide.load.resource.bitmap.*
+import com.bumptech.glide.load.resource.drawable.DrawableTransitionOptions.withCrossFade
+import com.bumptech.glide.request.RequestListener
+import com.bumptech.glide.request.RequestOptions
+import com.bumptech.glide.request.target.Target
+
+object ImageLoader {
+
+    val userAvatarTransformations = listOf(
+        TypeTransformations.CircleCrop
+    )
+
+    fun ImageView.clear() {
+        this.setImageDrawable(null)
+    }
+
+    fun ImageView.loadWithGlide(
+        url: String? = null,
+        uri: Uri? = null,
+        drawableRes: Int? = null,
+        drawable: Drawable? = null,
+        placeholderDrawable: Drawable = ColorDrawable(Color.TRANSPARENT),
+        errorDrawable: Drawable = placeholderDrawable,
+        crossFade: Boolean = false,
+        crossFadeDuration: Int = 200,
+        transformations: List<TypeTransformations> = emptyList(),
+        onLoadedAction: (() -> Unit)? = null,
+        onFailedAction: (() -> Unit)? = null,
+        priority: Priority = Priority.NORMAL,
+        cacheStrategy: DiskCacheStrategy = DiskCacheStrategy.ALL
+    ) {
+        val request = Glide.with(this)
+
+        var builder = when {
+            url != null -> request.load(url)
+            uri != null -> request.load(uri)
+            drawableRes != null -> request.load(drawableRes)
+            drawable != null -> request.load(drawable)
+            else -> request.load(null as Drawable?)
+        }
+
+        builder = builder
+            .apply(TypeTransformations.createRequestOptions(transformations))
+            .error(errorDrawable)
+            .placeholder(placeholderDrawable)
+            .addListener(ImageLoadRequestListener(onLoadedAction, onFailedAction))
+            .diskCacheStrategy(cacheStrategy)
+            .priority(priority)
+
+        if (crossFade) {
+            builder = builder.transition(withCrossFade(crossFadeDuration))
+        }
+
+        builder.into(this)
+    }
+}
+
+class ImageLoadRequestListener(
+    private val onLoadedAction: (() -> Unit)?,
+    private val onFailedAction: (() -> Unit)?
+) : RequestListener<Drawable> {
+
+    override fun onLoadFailed(
+        e: GlideException?,
+        model: Any?,
+        target: Target<Drawable>?,
+        isFirstResource: Boolean
+    ): Boolean {
+        onFailedAction?.invoke()
+        return false
+    }
+
+    override fun onResourceReady(
+        resource: Drawable?,
+        model: Any?,
+        target: Target<Drawable>?,
+        dataSource: DataSource?,
+        isFirstResource: Boolean
+    ): Boolean {
+        onLoadedAction?.invoke()
+        return false
+    }
+}
+
+sealed class TypeTransformations {
+
+    object CenterCrop : TypeTransformations()
+
+    object CenterInside : TypeTransformations()
+
+    object CircleCrop : TypeTransformations()
+
+    class RoundedCornerCrop(val radius: Int) : TypeTransformations()
+
+    class GranularRoundedCornerCrop(
+        val topLeft: Float,
+        val topRight: Float,
+        val bottomRight: Float,
+        val bottomLeft: Float
+    ) : TypeTransformations()
+
+    fun toGlideTransform(): Transformation<Bitmap> = when (this) {
+        CenterCrop -> CenterCrop()
+        CenterInside -> CenterInside()
+        is RoundedCornerCrop -> RoundedCorners(radius)
+        is GranularRoundedCornerCrop -> GranularRoundedCorners(
+            topLeft,
+            topRight,
+            bottomRight,
+            bottomLeft
+        )
+        CircleCrop -> CircleCrop()
+    }
+
+    companion object {
+
+        fun createRequestOptions(transformations: List<TypeTransformations>): RequestOptions {
+            val mappedTransformations = transformations
+                .map(TypeTransformations::toGlideTransform)
+                .toTypedArray()
+
+            return RequestOptions().transform(* mappedTransformations)
+        }
+    }
+}

app/src/main/kotlin/com/meloda/fast/extensions/NavigationExtensions.kt

@@ -1,266 +0,0 @@
-package com.meloda.fast.extensions
-
-import android.content.Intent
-import androidx.collection.SparseArrayCompat
-import androidx.collection.forEach
-import androidx.collection.set
-import androidx.fragment.app.Fragment
-import androidx.fragment.app.FragmentManager
-import androidx.lifecycle.LiveData
-import androidx.lifecycle.MutableLiveData
-import androidx.navigation.NavController
-import androidx.navigation.fragment.NavHostFragment
-import com.google.android.material.bottomnavigation.BottomNavigationView
-import com.meloda.fast.R
-import com.meloda.fast.api.UserConfig
-
-/**
- * Manages the various graphs needed for a [BottomNavigationView].
- *
- * This sample is a workaround until the Navigation Component supports multiple back stacks.
- */
-object NavigationExtensions {
-
-    fun BottomNavigationView.setupWithNavController(
-        navGraphIds: List<Int>,
-        fragmentManager: FragmentManager,
-        containerId: Int,
-        intent: Intent
-    ): LiveData<NavController> {
-
-        // Map of tags
-        val graphIdToTagMap = SparseArrayCompat<String>()
-        // Result. Mutable live data with the selected controlled
-        val selectedNavController = MutableLiveData<NavController>()
-
-        var firstFragmentGraphId = 0
-
-        // First create a NavHostFragment for each NavGraph ID
-        navGraphIds.forEachIndexed { index, navGraphId ->
-            val fragmentTag = getFragmentTag(index)
-
-            // Find or create the Navigation host fragment
-            val navHostFragment = obtainNavHostFragment(
-                fragmentManager,
-                fragmentTag,
-                navGraphId,
-                containerId
-            )
-
-            // Obtain its id
-            val graphId = navHostFragment.navController.graph.id
-
-            if (index == 0) {
-                firstFragmentGraphId = graphId
-            }
-
-            // Save to the map
-            graphIdToTagMap[graphId] = fragmentTag
-
-            // Attach or detach nav host fragment depending on whether it's the selected item.
-            if (this.selectedItemId == graphId) {
-                // Update livedata with the selected graph
-                selectedNavController.value = navHostFragment.navController
-                attachNavHostFragment(fragmentManager, navHostFragment, index == 0)
-            } else {
-                detachNavHostFragment(fragmentManager, navHostFragment)
-            }
-        }
-
-        // Now connect selecting an item with swapping Fragments
-        var selectedItemTag = graphIdToTagMap[this.selectedItemId]
-        val firstFragmentTag = graphIdToTagMap[firstFragmentGraphId] ?: ""
-        var isOnFirstFragment = selectedItemTag == firstFragmentTag
-
-        setOnItemSelectedListener { item ->
-            // Don't do anything if the state is state has already been saved.
-            if (fragmentManager.isStateSaved) {
-                false
-            } else {
-                val navController =
-                    (fragmentManager.findFragmentByTag(selectedItemTag) as NavHostFragment).navController
-                navController.popBackStack(navController.graph.startDestination, false)
-                if (selectedItemTag != graphIdToTagMap[item.itemId]) {
-                    val newlySelectedItemTag = //graphIdToTagMap[item.itemId]
-                        if (!UserConfig.isLoggedIn()) graphIdToTagMap[R.id.login] else graphIdToTagMap[item.itemId]
-
-                    fragmentManager.popBackStack(
-                        firstFragmentTag,
-                        FragmentManager.POP_BACK_STACK_INCLUSIVE
-                    )
-                    val selectedFragment =
-                        fragmentManager.findFragmentByTag(newlySelectedItemTag) as NavHostFragment
-
-                    // Exclude the first fragment tag because it's always in the back stack.
-                    if (firstFragmentTag != newlySelectedItemTag) {
-                        // Commit a transaction that cleans the back stack and adds the first fragment
-                        // to it, creating the fixed started destination.
-                        fragmentManager.beginTransaction()
-                            .setCustomAnimations(
-                                R.anim.nav_default_enter_anim,
-                                R.anim.nav_default_exit_anim,
-                                R.anim.nav_default_pop_enter_anim,
-                                R.anim.nav_default_pop_exit_anim
-                            )
-                            .attach(selectedFragment)
-                            .setPrimaryNavigationFragment(selectedFragment)
-                            .apply {
-                                // Detach all other Fragments
-                                graphIdToTagMap.forEach { _, fragmentTagIter ->
-                                    if (fragmentTagIter != newlySelectedItemTag) {
-                                        detach(fragmentManager.findFragmentByTag(firstFragmentTag)!!)
-                                    }
-                                }
-                            }
-                            .addToBackStack(firstFragmentTag)
-                            .setReorderingAllowed(true)
-                            .commit()
-                    }
-                    selectedItemTag = newlySelectedItemTag
-                    isOnFirstFragment = selectedItemTag == firstFragmentTag
-                    selectedNavController.value = selectedFragment.navController
-                    true
-                } else {
-                    false
-                }
-            }
-        }
-
-        setOnItemReselectedListener { item ->
-            val newlySelectedItemTag = graphIdToTagMap[item.itemId]
-            val selectedFragment =
-                fragmentManager.findFragmentByTag(newlySelectedItemTag) as NavHostFragment
-            val navController = selectedFragment.navController
-            // Pop the back stack to the start destination of the current navController graph
-            if (selectedItemTag != graphIdToTagMap[item.itemId]) {
-                fragmentManager.beginTransaction()
-                    .setCustomAnimations(
-                        R.anim.nav_default_enter_anim,
-                        R.anim.nav_default_exit_anim,
-                        R.anim.nav_default_pop_enter_anim,
-                        R.anim.nav_default_pop_exit_anim
-                    )
-                    .attach(selectedFragment)
-                    .setPrimaryNavigationFragment(selectedFragment)
-                    .apply {
-                        // Detach all other Fragments
-                        graphIdToTagMap.forEach { _, fragmentTagIter ->
-                            if (fragmentTagIter != newlySelectedItemTag) {
-                                detach(fragmentManager.findFragmentByTag(firstFragmentTag)!!)
-                            }
-                        }
-                    }
-                    .addToBackStack(firstFragmentTag)
-                    .setReorderingAllowed(true)
-                    .commit()
-                selectedItemTag = newlySelectedItemTag
-                isOnFirstFragment = selectedItemTag == firstFragmentTag
-                selectedNavController.value = selectedFragment.navController
-            } else navController.popBackStack(navController.graph.startDestination, false)
-        }
-        // Optional: on item reselected, pop back stack to the destination of the graph
-        setupDeepLinks(navGraphIds, fragmentManager, containerId, intent)
-
-        // Finally, ensure that we update our BottomNavigationView when the back stack changes
-        fragmentManager.addOnBackStackChangedListener {
-            if (!isOnFirstFragment && !fragmentManager.isOnBackStack(firstFragmentTag)) {
-                this.selectedItemId = firstFragmentGraphId
-            }
-
-            // Reset the graph if the currentDestination is not valid (happens when the back
-            // stack is popped after using the back button).
-            selectedNavController.value?.let { controller ->
-                if (controller.currentDestination == null) {
-                    controller.navigate(controller.graph.id)
-                }
-            }
-        }
-        return selectedNavController
-    }
-
-    private fun BottomNavigationView.setupDeepLinks(
-        navGraphIds: List<Int>,
-        fragmentManager: FragmentManager,
-        containerId: Int,
-        intent: Intent
-    ) {
-        navGraphIds.forEachIndexed { index, navGraphId ->
-            val fragmentTag = getFragmentTag(index)
-
-            // Find or create the Navigation host fragment
-            val navHostFragment = obtainNavHostFragment(
-                fragmentManager,
-                fragmentTag,
-                navGraphId,
-                containerId
-            )
-            // Handle Intent
-            if (navHostFragment.navController.handleDeepLink(intent) &&
-                selectedItemId != navHostFragment.navController.graph.id
-            ) {
-                this.selectedItemId = navHostFragment.navController.graph.id
-            }
-        }
-    }
-
-    private fun detachNavHostFragment(
-        fragmentManager: FragmentManager,
-        navHostFragment: NavHostFragment
-    ) {
-        fragmentManager.beginTransaction()
-            .detach(navHostFragment)
-            .commitNow()
-    }
-
-    private fun attachNavHostFragment(
-        fragmentManager: FragmentManager,
-        navHostFragment: NavHostFragment,
-        isPrimaryNavFragment: Boolean
-    ) {
-        fragmentManager.beginTransaction()
-            .attach(navHostFragment)
-            .apply {
-                if (isPrimaryNavFragment) {
-                    setPrimaryNavigationFragment(navHostFragment)
-                }
-            }
-            .commitNow()
-    }
-
-    private fun obtainNavHostFragment(
-        fragmentManager: FragmentManager,
-        fragmentTag: String,
-        navGraphId: Int,
-        containerId: Int,
-    ): NavHostFragment {
-        // If the Nav Host fragment exists, return it
-        val existingFragment = fragmentManager.findFragmentByTag(fragmentTag) as NavHostFragment?
-        existingFragment?.let { return it }
-
-        // Otherwise, create it and return it.
-        val navHostFragment = NavHostFragment.create(navGraphId)
-        fragmentManager.beginTransaction()
-            .add(containerId, navHostFragment, fragmentTag)
-            .commitNow()
-        return navHostFragment
-    }
-
-    private fun FragmentManager.isOnBackStack(backStackName: String): Boolean {
-        val backStackCount = backStackEntryCount
-        for (index in 0 until backStackCount) {
-            if (getBackStackEntryAt(index).name == backStackName) {
-                return true
-            }
-        }
-        return false
-    }
-
-    val FragmentManager.visibleFragments
-        get(): List<Fragment> {
-            val visibleFragments = arrayListOf<Fragment>()
-            fragments.forEach { if (it.isVisible) visibleFragments.add(it) }
-            return visibleFragments
-        }
-
-    private fun getFragmentTag(index: Int) = "bottomNavigation#$index"
-}

app/src/main/kotlin/com/meloda/fast/extensions/TextViewExtensions.kt

@@ -1,11 +0,0 @@
-package com.meloda.fast.extensions
-
-import android.widget.TextView
-
-object TextViewExtensions {
-
-    fun TextView.clear() {
-        text = null
-    }
-
-}

app/src/main/kotlin/com/meloda/fast/model/ListModels.kt

@@ -0,0 +1,13 @@
+package com.meloda.fast.model
+
+sealed class DataItem<IdType> {
+    abstract val dataItemId: IdType
+
+    object Header : DataItem<Int>() {
+        override val dataItemId = Int.MIN_VALUE
+    }
+
+    object Footer : DataItem<Int>() {
+        override val dataItemId = Int.MIN_VALUE + 1
+    }
+}

app/src/main/kotlin/com/meloda/fast/model/SelectableItem.kt

@@ -0,0 +1,22 @@
+package com.meloda.fast.model
+
+import android.os.Parcelable
+import androidx.room.Ignore
+import kotlinx.parcelize.IgnoredOnParcel
+import kotlinx.parcelize.Parcelize
+
+@Parcelize
+open class SelectableItem constructor(
+    @Ignore
+    val selectableItemId: Int = 0
+) : DataItem<Int>(), Parcelable {
+
+    @Ignore
+    @IgnoredOnParcel
+    var isSelected: Boolean = false
+
+    @Ignore
+    @IgnoredOnParcel
+    override val dataItemId = selectableItemId
+
+}

app/src/main/kotlin/com/meloda/fast/screens/conversations/ConversationsAdapter.kt

@@ -8,10 +8,10 @@ import android.text.TextUtils
 import android.text.style.ForegroundColorSpan
 import android.view.ViewGroup
 import androidx.core.content.ContextCompat
+import androidx.core.util.ObjectsCompat
 import androidx.core.view.isVisible
 import androidx.core.view.setPadding
 import androidx.recyclerview.widget.DiffUtil
-import coil.load
 import com.meloda.fast.R
 import com.meloda.fast.api.UserConfig
 import com.meloda.fast.api.VKConstants
@@ -22,26 +22,35 @@ import com.meloda.fast.api.model.VkUser
 import com.meloda.fast.base.adapter.BaseAdapter
 import com.meloda.fast.base.adapter.BindingHolder
 import com.meloda.fast.databinding.ItemConversationBinding
+import com.meloda.fast.extensions.ImageLoader
+import com.meloda.fast.extensions.ImageLoader.clear
+import com.meloda.fast.extensions.ImageLoader.loadWithGlide
+import com.meloda.fast.extensions.gone
+import com.meloda.fast.extensions.toggleVisibility
+import com.meloda.fast.extensions.visible
 import com.meloda.fast.util.TimeUtils
 
 class ConversationsAdapter constructor(
     context: Context,
-    values: MutableList<VkConversation>,
+    private val resourceManager: ConversationsResourceManager,
+    var isMultilineEnabled: Boolean = true,
     val profiles: HashMap<Int, VkUser> = hashMapOf(),
     val groups: HashMap<Int, VkGroup> = hashMapOf(),
-    var isMultilineEnabled: Boolean = true
-) : BaseAdapter<VkConversation, ConversationsAdapter.ItemHolder>(
-    context, values, COMPARATOR
-) {
+) : BaseAdapter<VkConversation, ConversationsAdapter.ItemHolder>(context, Comparator) {
 
-    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int) =
-        ItemHolder(ItemConversationBinding.inflate(inflater, parent, false))
+    var pinnedCount = 0
 
-    inner class ItemHolder(binding: ItemConversationBinding) :
-        BindingHolder<ItemConversationBinding>(binding) {
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ItemHolder {
+        return ItemHolder(
+            ItemConversationBinding.inflate(inflater, parent, false),
+            resourceManager
+        )
+    }
 
-        private val dateColor = ContextCompat.getColor(context, R.color.n2_500)
-        private val youPrefix = context.getString(R.string.you_message_prefix)
+    inner class ItemHolder(
+        binding: ItemConversationBinding,
+        private val resourceManager: ConversationsResourceManager
+    ) : BindingHolder<ItemConversationBinding>(binding) {
 
         init {
             binding.title.ellipsize = TextUtils.TruncateAt.END
@@ -69,7 +78,7 @@ class ConversationsAdapter constructor(
                 )
 
                 val span = SpannableString(text)
-                span.setSpan(ForegroundColorSpan(dateColor), 0, text.length, 0)
+                span.setSpan(ForegroundColorSpan(resourceManager.colorOutline), 0, text.length, 0)
 
                 binding.message.text = span
                 return
@@ -87,51 +96,46 @@ class ConversationsAdapter constructor(
                 conversationGroup = conversationGroup
             )
 
-            binding.avatar.isVisible = avatar != null
+            binding.avatar.toggleVisibility(avatar != null)
 
             if (avatar == null) {
-                binding.avatarPlaceholder.isVisible = true
+                binding.avatarPlaceholder.visible()
 
                 if (conversation.ownerId == VKConstants.FAST_GROUP_ID) {
-                    binding.placeholderBack.setImageDrawable(
-                        ColorDrawable(
-                            ContextCompat.getColor(context, R.color.a1_400)
-                        )
+                    binding.placeholderBack.loadWithGlide(
+                        drawable = ColorDrawable(resourceManager.icLauncherColor),
+                        transformations = ImageLoader.userAvatarTransformations
                     )
                     binding.placeholder.imageTintList =
-                        ColorStateList.valueOf(ContextCompat.getColor(context, R.color.a1_0))
+                        ColorStateList.valueOf(resourceManager.colorOnPrimary)
                     binding.placeholder.setImageResource(R.drawable.ic_fast_logo)
                     binding.placeholder.setPadding(18)
                 } else {
-                    binding.placeholderBack.setImageDrawable(
-                        ColorDrawable(
-                            ContextCompat.getColor(context, R.color.n1_50)
-                        )
+                    binding.placeholderBack.loadWithGlide(
+                        drawable = ColorDrawable(resourceManager.colorOnUserAvatarAction),
+                        transformations = ImageLoader.userAvatarTransformations
                     )
                     binding.placeholder.imageTintList =
-                        ColorStateList.valueOf(ContextCompat.getColor(context, R.color.n2_500))
+                        ColorStateList.valueOf(resourceManager.colorUserAvatarAction)
                     binding.placeholder.setImageResource(R.drawable.ic_account_circle_cut)
                     binding.placeholder.setPadding(0)
-                    binding.avatar.setImageDrawable(null)
+                    binding.avatar.clear()
                 }
             } else {
-                binding.avatar.load(avatar) {
-                    crossfade(200)
-                    target {
-                        binding.avatarPlaceholder.isVisible = false
-                        binding.avatar.setImageDrawable(it)
-                    }
-                }
+                binding.avatar.loadWithGlide(
+                    url = avatar,
+                    crossFade = true,
+                    onLoadedAction = { binding.avatarPlaceholder.gone() }
+                )
             }
 
-            binding.online.isVisible = conversationUser?.online == true
-
-            binding.pin.isVisible = conversation.isPinned
+            binding.online.toggleVisibility(conversationUser?.online == true)
+            binding.pin.toggleVisibility(conversation.isPinned)
 
             val actionMessage = VkUtils.getActionConversationText(
                 context = context,
                 message = message,
-                youPrefix = youPrefix,
+                youPrefix = resourceManager.youPrefix,
                 profiles = profiles,
                 groups = groups,
                 messageUser = messageUser,
@@ -150,7 +154,7 @@ class ConversationsAdapter constructor(
                     message = message
                 )
 
-            binding.textAttachment.isVisible = attachmentIcon != null
+            binding.textAttachment.toggleVisibility(attachmentIcon != null)
             binding.textAttachment.setImageDrawable(attachmentIcon)
 
             val attachmentText = if (attachmentIcon == null) VkUtils.getAttachmentText(
@@ -174,7 +178,7 @@ class ConversationsAdapter constructor(
 
             var prefix = when {
                 actionMessage != null -> ""
-                message.isOut -> "$youPrefix: "
+                message.isOut -> "${resourceManager.youPrefix}: "
                 else -> {
                     if (message.isUser() && messageUser != null && messageUser.firstName.isNotBlank()) "${messageUser.firstName}: "
                     else if (message.isGroup() && messageGroup != null && messageGroup.name.isNotBlank()) "${messageGroup.name}: "
@@ -190,7 +194,7 @@ class ConversationsAdapter constructor(
 
             val spanMessage = SpannableString(spanText)
             spanMessage.setSpan(
-                ForegroundColorSpan(dateColor), 0,
+                ForegroundColorSpan(resourceManager.colorOutline), 0,
                 prefix.length + coloredMessage.length,
                 0
             )
@@ -208,6 +212,15 @@ class ConversationsAdapter constructor(
                 R.drawable.ic_message_unread
             ) else null
 
+            binding.onlineBorder.setImageDrawable(
+                ColorDrawable(
+                    ContextCompat.getColor(
+                        context,
+                        if (conversation.isUnread()) R.color.colorBackgroundVariant
+                        else R.color.colorBackground
+                    )
+                )
+            )
 
             binding.counter.isVisible = conversation.isInUnread()
             if (conversation.isInUnread()) {
@@ -222,10 +235,10 @@ class ConversationsAdapter constructor(
     }
 
     fun removeConversation(conversationId: Int): Int? {
-        for (i in values.indices) {
-            val conversation = values[i]
+        for (i in indices) {
+            val conversation = getItem(i)
             if (conversation.id == conversationId) {
-                values.removeAt(i)
+                removeAt(i)
                 return i
             }
         }
@@ -233,17 +246,29 @@ class ConversationsAdapter constructor(
         return null
     }
 
+    fun searchConversationIndex(conversationId: Int): Int? {
+        for (i in indices) {
+            val conversation = getItem(i)
+
+            if (conversation.id == conversationId) return i
+        }
+
+        return null
+    }
+
     companion object {
-        private val COMPARATOR = object : DiffUtil.ItemCallback<VkConversation>() {
+        private val Comparator = object : DiffUtil.ItemCallback<VkConversation>() {
             override fun areItemsTheSame(
                 oldItem: VkConversation,
                 newItem: VkConversation
-            ) = false
+            ): Boolean {
+                return oldItem.id == newItem.id
+            }
 
             override fun areContentsTheSame(
                 oldItem: VkConversation,
                 newItem: VkConversation
-            ) = false
+            ) = ObjectsCompat.equals(oldItem, newItem)
         }
     }
 

app/src/main/kotlin/com/meloda/fast/screens/conversations/ConversationsFragment.kt

@@ -1,23 +1,16 @@
 package com.meloda.fast.screens.conversations
 
-import android.content.Intent
 import android.os.Bundle
 import android.view.Gravity
 import android.view.View
 import android.viewbinding.library.fragment.viewBinding
 import androidx.appcompat.widget.PopupMenu
 import androidx.core.os.bundleOf
-import androidx.core.view.isVisible
-import androidx.core.view.updatePadding
 import androidx.datastore.preferences.core.edit
 import androidx.fragment.app.viewModels
 import androidx.lifecycle.lifecycleScope
-import androidx.navigation.fragment.findNavController
-import coil.load
-import com.google.android.material.appbar.AppBarLayout
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import com.meloda.fast.R
-import com.meloda.fast.activity.MainActivity
 import com.meloda.fast.api.UserConfig
 import com.meloda.fast.api.model.VkConversation
 import com.meloda.fast.base.BaseViewModelFragment
@@ -28,14 +21,16 @@ import com.meloda.fast.common.AppGlobal
 import com.meloda.fast.common.AppSettings
 import com.meloda.fast.common.dataStore
 import com.meloda.fast.databinding.FragmentConversationsBinding
+import com.meloda.fast.extensions.ImageLoader.loadWithGlide
+import com.meloda.fast.extensions.gone
+import com.meloda.fast.extensions.toggleVisibility
+import com.meloda.fast.screens.messages.MessagesHistoryFragment
 import com.meloda.fast.util.AndroidUtils
 import dagger.hilt.android.AndroidEntryPoint
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.collect
 import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.launch
-import kotlin.math.abs
-import kotlin.math.roundToInt
 
 @AndroidEntryPoint
 class ConversationsFragment :
@@ -47,9 +42,7 @@ class ConversationsFragment :
     private val adapter: ConversationsAdapter by lazy {
         ConversationsAdapter(
             requireContext(),
-            mutableListOf(),
-            hashMapOf(),
-            hashMapOf()
+            ConversationsResourceManager(requireContext())
         ).also {
             it.itemClickListener = this::onItemClick
             it.itemLongClickListener = this::onItemLongClick
@@ -74,13 +67,6 @@ class ConversationsFragment :
                 }
             }
 
-    private var isPaused = false
-
-    override fun onPause() {
-        super.onPause()
-        isPaused = true
-    }
-
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
         prepareViews()
@@ -90,41 +76,16 @@ class ConversationsFragment :
         lifecycleScope.launch {
             requireContext().dataStore.data.map {
                 adapter.isMultilineEnabled = it[AppSettings.keyIsMultilineEnabled] ?: true
-                adapter.notifyItemRangeChanged(0, adapter.itemCount)
+                adapter.refreshList()
             }.collect()
         }
 
         binding.createChat.setOnClickListener {}
 
-        UserConfig.vkUser.observe(viewLifecycleOwner) {
-            it?.let { user -> binding.avatar.load(user.photo200) { crossfade(100) } }
+        UserConfig.vkUser.observe(viewLifecycleOwner) { user ->
+            user?.run { binding.avatar.loadWithGlide(url = this.photo200, crossFade = true) }
         }
 
-        binding.appBar.addOnOffsetChangedListener(AppBarLayout.OnOffsetChangedListener { _, verticalOffset ->
-            if (isPaused) return@OnOffsetChangedListener
-
-            binding.appBar.animate().translationZ(
-                if (verticalOffset < 0) AndroidUtils.px(3).roundToInt().toFloat()
-                else 0f
-            ).setDuration(50).start()
-
-            val padding = AndroidUtils.px(if (verticalOffset <= -100) 10 else 30).roundToInt()
-
-            binding.avatarContainer.updatePadding(
-                bottom = padding,
-                right = padding
-            )
-
-            val minusAlpha = (1 - (abs(verticalOffset) * 0.01)).toFloat()
-            val plusAlpha = (abs(1 + verticalOffset * 0.01) * 1.01).toFloat()
-
-            println("Fast::ConversationsFragment::onOffset offset: $verticalOffset; minusAlpha: $minusAlpha; plusAlpha: $plusAlpha")
-
-            val alpha: Float = if (verticalOffset <= -100) plusAlpha else minusAlpha
-
-            binding.avatarContainer.alpha = alpha
-        })
-
         binding.avatar.setOnClickListener { avatarPopupMenu.show() }
 
         binding.avatar.setOnLongClickListener {
@@ -134,23 +95,18 @@ class ConversationsFragment :
                     settings[AppSettings.keyIsMultilineEnabled] = !isMultilineEnabled
 
                     adapter.isMultilineEnabled = !isMultilineEnabled
-                    adapter.notifyItemRangeChanged(0, adapter.itemCount)
+                    adapter.refreshList()
                 }
             }
             true
         }
 
-        if (isPaused) {
-            isPaused = false
-            return
-        }
-
         viewModel.loadProfileUser()
         viewModel.loadConversations()
     }
 
     private fun showLogOutDialog() {
-        val isEasterEgg = UserConfig.userId == UserConfig.userId
+        val isEasterEgg = UserConfig.userId == 37610580
 
         MaterialAlertDialogBuilder(requireContext())
             .setTitle(
@@ -166,13 +122,7 @@ class ConversationsFragment :
                     UserConfig.clear()
                     AppGlobal.appDatabase.clearAllTables()
 
-                    requireActivity().finishAffinity()
-                    requireActivity().startActivity(
-                        Intent(
-                            requireContext(),
-                            MainActivity::class.java
-                        )
-                    )
+                    viewModel.openRootScreen()
                 }
             }
             .setNegativeButton(R.string.no, null)
@@ -185,21 +135,31 @@ class ConversationsFragment :
             is StartProgressEvent -> onProgressStarted()
             is StopProgressEvent -> onProgressStopped()
 
-            is ConversationsLoaded -> refreshConversations(event)
-            is ConversationsDelete -> deleteConversation(event.peerId)
+            is ConversationsLoadedEvent -> refreshConversations(event)
+            is ConversationsDeleteEvent -> deleteConversation(event.peerId)
 
             // TODO: 10-Oct-21 remove this and sort conversations list
-            is ConversationsPin, is ConversationsUnpin -> viewModel.loadConversations()
+            is ConversationsPinEvent -> {
+                adapter.pinnedCount++
+                viewModel.loadConversations()
+            }
+            is ConversationsUnpinEvent -> {
+                adapter.pinnedCount--
+                viewModel.loadConversations()
+            }
+
+            is MessagesNewEvent -> onMessageNew(event)
+            is MessagesEditEvent -> onMessageEdit(event)
         }
     }
 
     private fun onProgressStarted() {
-        binding.progressBar.isVisible = adapter.isEmpty()
+        binding.progressBar.toggleVisibility(adapter.isEmpty())
         binding.refreshLayout.isRefreshing = adapter.isNotEmpty()
     }
 
     private fun onProgressStopped() {
-        binding.progressBar.isVisible = false
+        binding.progressBar.gone()
         binding.refreshLayout.isRefreshing = false
     }
 
@@ -233,16 +193,17 @@ class ConversationsFragment :
         }
     }
 
-    private fun refreshConversations(event: ConversationsLoaded) {
+    private fun refreshConversations(event: ConversationsLoadedEvent) {
         adapter.profiles += event.profiles
         adapter.groups += event.groups
 
+        val pinnedConversations = event.conversations.filter { it.isPinned }
+        adapter.pinnedCount = pinnedConversations.count()
+
         fillRecyclerView(event.conversations)
     }
 
     private fun fillRecyclerView(values: List<VkConversation>) {
-        adapter.values.clear()
-        adapter.values += values
         adapter.submitList(values)
     }
 
@@ -257,12 +218,11 @@ class ConversationsFragment :
             if (conversation.isGroup()) adapter.groups[conversation.id]
             else null
 
-        findNavController().navigate(
-            R.id.toMessagesHistory,
+        viewModel.openMessagesHistoryScreen(
             bundleOf(
-                "conversation" to adapter[position],
-                "user" to user,
-                "group" to group
+                MessagesHistoryFragment.ARG_USER to user,
+                MessagesHistoryFragment.ARG_GROUP to group,
+                MessagesHistoryFragment.ARG_CONVERSATION to conversation
             )
         )
     }
@@ -277,7 +237,7 @@ class ConversationsFragment :
 
         var canPinOneMoreDialog = true
         if (adapter.itemCount > 4) {
-            val firstFiveDialogs = adapter.values.subList(0, 5)
+            val firstFiveDialogs = adapter.currentList.subList(0, 5)
             var pinnedCount = 0
 
             firstFiveDialogs.forEach { if (it.isPinned) pinnedCount++ }
@@ -321,8 +281,7 @@ class ConversationsFragment :
     }
 
     private fun deleteConversation(conversationId: Int) {
-        val index = adapter.removeConversation(conversationId) ?: return
-        adapter.notifyItemRemoved(index)
+        adapter.removeConversation(conversationId)
     }
 
     private fun showPinConversationDialog(conversation: VkConversation) {
@@ -345,4 +304,45 @@ class ConversationsFragment :
             .show()
     }
 
+    private fun onMessageNew(event: MessagesNewEvent) {
+        adapter.profiles += event.profiles
+        adapter.groups += event.groups
+
+        val message = event.message
+
+        val conversationIndex = adapter.searchConversationIndex(message.peerId)
+        if (conversationIndex == null) { // диалога нет в списке
+
+        } else {
+            val conversation = adapter[conversationIndex]
+            conversation.run {
+                lastMessage = message
+                lastMessageId = message.id
+                lastConversationMessageId = -1
+            }
+
+            if (conversation.isPinned) {
+                adapter[conversationIndex] = conversation
+                return
+            }
+
+            adapter.removeConversation(message.peerId) ?: return
+            val toPosition = adapter.pinnedCount
+
+            adapter.add(conversation, toPosition)
+        }
+    }
+
+    private fun onMessageEdit(event: MessagesEditEvent) {
+        val message = event.message
+
+        val conversationIndex = adapter.searchConversationIndex(message.peerId)
+        if (conversationIndex == null) { // диалога нет в списке
+
+        } else {
+            val conversation = adapter[conversationIndex]
+            conversation.lastMessage = message
+            adapter[conversationIndex] = conversation
+        }
+    }
 }

app/src/main/kotlin/com/meloda/fast/screens/conversations/ConversationsResourceManager.kt

@@ -0,0 +1,19 @@
+package com.meloda.fast.screens.conversations
+
+import android.content.Context
+import com.meloda.fast.R
+import com.meloda.fast.base.ResourceManager
+import com.meloda.fast.extensions.TypeTransformations
+
+class ConversationsResourceManager(context: Context) : ResourceManager(context) {
+
+    val colorOutline = getColor(R.color.colorOutline)
+    val colorOnPrimary = getColor(R.color.colorOnPrimary)
+    val colorUserAvatarAction = getColor(R.color.colorUserAvatarAction)
+    val colorOnUserAvatarAction = getColor(R.color.colorOnUserAvatarAction)
+
+    val icLauncherColor = getColor(R.color.a1_500)
+
+    val youPrefix = getString(R.string.you_message_prefix)
+
+}

app/src/main/kotlin/com/meloda/fast/screens/conversations/ConversationsViewModel.kt

@@ -1,28 +1,49 @@
 package com.meloda.fast.screens.conversations
 
+import android.os.Bundle
 import androidx.lifecycle.viewModelScope
+import com.github.terrakok.cicerone.Router
+import com.meloda.fast.api.LongPollEvent
+import com.meloda.fast.api.LongPollUpdatesParser
 import com.meloda.fast.api.UserConfig
 import com.meloda.fast.api.VKConstants
 import com.meloda.fast.api.model.VkConversation
 import com.meloda.fast.api.model.VkGroup
+import com.meloda.fast.api.model.VkMessage
 import com.meloda.fast.api.model.VkUser
 import com.meloda.fast.api.network.conversations.*
 import com.meloda.fast.api.network.users.UsersDataSource
 import com.meloda.fast.api.network.users.UsersGetRequest
 import com.meloda.fast.base.viewmodel.BaseViewModel
 import com.meloda.fast.base.viewmodel.VkEvent
+import com.meloda.fast.common.Screens
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
-import java.util.*
 import javax.inject.Inject
 
 @HiltViewModel
 class ConversationsViewModel @Inject constructor(
     private val conversations: ConversationsDataSource,
-    private val users: UsersDataSource
+    private val users: UsersDataSource,
+    updatesParser: LongPollUpdatesParser,
+    private val router: Router
 ) : BaseViewModel() {
 
+    companion object {
+        private const val TAG = "ConversationsViewModel"
+    }
+
+    init {
+        updatesParser.onNewMessage {
+            viewModelScope.launch { handleNewMessage(it) }
+        }
+
+        updatesParser.onMessageEdited {
+            viewModelScope.launch { handleEditedMessage(it) }
+        }
+    }
+
     fun loadConversations(
         offset: Int? = null
     ) = viewModelScope.launch(Dispatchers.Default) {
@@ -49,7 +70,7 @@ class ConversationsViewModel @Inject constructor(
                     }
 
                     sendEvent(
-                        ConversationsLoaded(
+                        ConversationsLoadedEvent(
                             count = response.count,
                             offset = offset,
                             unreadCount = response.unreadCount ?: 0,
@@ -84,7 +105,7 @@ class ConversationsViewModel @Inject constructor(
             conversations.delete(
                 ConversationsDeleteRequest(peerId)
             )
-        }, onAnswer = { sendEvent(ConversationsDelete(peerId)) })
+        }, onAnswer = { sendEvent(ConversationsDeleteEvent(peerId)) })
     }
 
     fun pinConversation(
@@ -94,18 +115,41 @@ class ConversationsViewModel @Inject constructor(
         if (pin) {
             makeJob(
                 { conversations.pin(ConversationsPinRequest(peerId)) },
-                onAnswer = { sendEvent(ConversationsPin(peerId)) }
+                onAnswer = { sendEvent(ConversationsPinEvent(peerId)) }
             )
         } else {
             makeJob(
                 { conversations.unpin(ConversationsUnpinRequest(peerId)) },
-                onAnswer = { sendEvent(ConversationsUnpin(peerId)) }
+                onAnswer = { sendEvent(ConversationsUnpinEvent(peerId)) }
             )
         }
     }
+
+    private suspend fun handleNewMessage(event: LongPollEvent.VkMessageNewEvent) {
+        sendEvent(
+            MessagesNewEvent(
+                message = event.message,
+                profiles = event.profiles,
+                groups = event.groups
+            )
+        )
+    }
+
+    private suspend fun handleEditedMessage(event: LongPollEvent.VkMessageEditEvent) {
+        sendEvent(MessagesEditEvent(event.message))
+    }
+
+    fun openRootScreen() {
+        router.exit()
+        router.newRootScreen(Screens.Main())
+    }
+
+    fun openMessagesHistoryScreen(bundle: Bundle) {
+        router.navigateTo(Screens.MessagesHistory(bundle))
+    }
 }
 
-data class ConversationsLoaded(
+data class ConversationsLoadedEvent(
     val count: Int,
     val offset: Int?,
     val unreadCount: Int?,
@@ -114,8 +158,16 @@ data class ConversationsLoaded(
     val groups: HashMap<Int, VkGroup>
 ) : VkEvent()
 
-data class ConversationsDelete(val peerId: Int) : VkEvent()
+data class ConversationsDeleteEvent(val peerId: Int) : VkEvent()
 
-data class ConversationsPin(val peerId: Int) : VkEvent()
+data class ConversationsPinEvent(val peerId: Int) : VkEvent()
 
-data class ConversationsUnpin(val peerId: Int) : VkEvent()
+data class ConversationsUnpinEvent(val peerId: Int) : VkEvent()
+
+data class MessagesNewEvent(
+    val message: VkMessage,
+    val profiles: HashMap<Int, VkUser>,
+    val groups: HashMap<Int, VkGroup>
+) : VkEvent()
+
+data class MessagesEditEvent(val message: VkMessage) : VkEvent()

app/src/main/kotlin/com/meloda/fast/screens/login/LoginFragment.kt

@@ -18,7 +18,6 @@ import androidx.core.view.isVisible
 import androidx.core.widget.addTextChangedListener
 import androidx.fragment.app.viewModels
 import androidx.lifecycle.lifecycleScope
-import androidx.navigation.fragment.findNavController
 import coil.load
 import coil.transform.RoundedCornersTransformation
 import com.google.android.material.snackbar.Snackbar
@@ -35,9 +34,7 @@ import com.meloda.fast.databinding.FragmentLoginBinding
 import com.meloda.fast.util.KeyboardUtils
 import dagger.hilt.android.AndroidEntryPoint
 import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
-import org.jsoup.Jsoup
 import java.net.URLEncoder
 import java.util.*
 import java.util.regex.Pattern
@@ -77,7 +74,7 @@ class LoginFragment : BaseViewModelFragment<LoginViewModel>(R.layout.fragment_lo
             is ErrorEvent -> showErrorSnackbar(event.errorText)
             is CaptchaEvent -> showCaptchaDialog(event.sid, event.image)
             is ValidationEvent -> showValidationRequired(event.sid)
-            is SuccessAuth -> goToMain(event)
+            is SuccessAuth -> launchWebView()
 
             is CodeSent -> showValidationDialog()
             is StartProgressEvent -> onProgressStarted()
@@ -119,12 +116,8 @@ class LoginFragment : BaseViewModelFragment<LoginViewModel>(R.layout.fragment_lo
                     parseAuthUrl(url)
                 }
 
-                override fun onPageFinished(view: WebView, url: String) {
+                override fun onPageFinished(view: WebView, url: String?) {
                     super.onPageFinished(view, url)
-
-                    val a = Jsoup.parse(url)
-
-                    val b = 0
                 }
             }
         }
@@ -137,15 +130,23 @@ class LoginFragment : BaseViewModelFragment<LoginViewModel>(R.layout.fragment_lo
     }
 
     private fun launchWebView() {
+        binding.webView.isVisible = true
         binding.webView.loadUrl(
             "https://oauth.vk.com/authorize?client_id=${UserConfig.FAST_APP_ID}&" +
-                    "display=mobile&scope=136297695&" +
+                    "access_token=${UserConfig.accessToken}&" +
+                    "sdk_package=com.meloda.fast.activity&" +
+                    "sdk_fingerprint=AA88DSADAS8DG8FSA8&" +
+                    "display=page&" +
+                    "revoke=1&" +
+                    "scope=136297695&" +
                     "redirect_uri=${
                         URLEncoder.encode(
                             "https://oauth.vk.com/blank.html",
                             Charsets.UTF_8.toString()
                         )
-                    }&response_type=token&v=${VKConstants.API_VERSION}"
+                    }&" +
+                    "response_type=token&" +
+                    "v=${VKConstants.API_VERSION}"
         )
     }
 
@@ -167,6 +168,8 @@ class LoginFragment : BaseViewModelFragment<LoginViewModel>(R.layout.fragment_lo
             val token = authData.first
 
             UserConfig.fastToken = token
+
+            viewModel.openPrimaryScreen()
         }
     }
 
@@ -205,9 +208,9 @@ class LoginFragment : BaseViewModelFragment<LoginViewModel>(R.layout.fragment_lo
                 else TextInputLayout.END_ICON_NONE
         }
 
-        binding.passwordInput.setOnEditorActionListener { _, _, event ->
-            if (event == null) return@setOnEditorActionListener false
-            return@setOnEditorActionListener if (event.action == EditorInfo.IME_ACTION_GO ||
+        binding.passwordInput.setOnEditorActionListener edit@{ _, _, event ->
+            if (event == null) return@edit false
+            return@edit if (event.action == EditorInfo.IME_ACTION_GO ||
                 (event.action == KeyEvent.ACTION_DOWN && (event.keyCode == KeyEvent.KEYCODE_ENTER || event.keyCode == KeyEvent.KEYCODE_NUMPAD_ENTER))
             ) {
                 KeyboardUtils.hideKeyboardFrom(binding.passwordInput)
@@ -237,7 +240,6 @@ class LoginFragment : BaseViewModelFragment<LoginViewModel>(R.layout.fragment_lo
 
         KeyboardUtils.hideKeyboardFrom(requireView().findFocus())
 
-
         viewModel.login(
             login = loginString,
             password = passwordString
@@ -383,16 +385,4 @@ class LoginFragment : BaseViewModelFragment<LoginViewModel>(R.layout.fragment_lo
         snackbar.animationMode = Snackbar.ANIMATION_MODE_FADE
         snackbar.show()
     }
-
-    private fun goToMain(event: SuccessAuth) = lifecycleScope.launch {
-        UserConfig.userId = event.userId
-        UserConfig.accessToken = event.vkToken
-
-        if (event.haveAuthorized) delay(500)
-
-        launchWebView()
-
-        findNavController().navigate(R.id.toMain)
-    }
-
 }

app/src/main/kotlin/com/meloda/fast/screens/login/LoginViewModel.kt

@@ -1,20 +1,30 @@
 package com.meloda.fast.screens.login
 
 import androidx.lifecycle.viewModelScope
+import com.github.terrakok.cicerone.Router
+import com.meloda.fast.api.UserConfig
 import com.meloda.fast.api.VKConstants
 import com.meloda.fast.api.VKException
 import com.meloda.fast.api.network.auth.AuthDataSource
-import com.meloda.fast.api.network.auth.RequestAuthDirect
-import com.meloda.fast.base.viewmodel.*
+import com.meloda.fast.api.network.auth.AuthDirectRequest
+import com.meloda.fast.base.viewmodel.BaseViewModel
+import com.meloda.fast.base.viewmodel.ErrorEvent
+import com.meloda.fast.base.viewmodel.VkEvent
+import com.meloda.fast.common.Screens
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.launch
 import javax.inject.Inject
 
 @HiltViewModel
 class LoginViewModel @Inject constructor(
-    private val dataSource: AuthDataSource
+    private val dataSource: AuthDataSource,
+    private val router: Router
 ) : BaseViewModel() {
 
+    companion object {
+        private const val TAG = "LoginViewModel"
+    }
+
     fun login(
         login: String,
         password: String,
@@ -24,7 +34,7 @@ class LoginViewModel @Inject constructor(
         makeJob(
             {
                 dataSource.auth(
-                    RequestAuthDirect(
+                    AuthDirectRequest(
                         grantType = VKConstants.Auth.GrantType.PASSWORD,
                         clientId = VKConstants.VK_APP_ID,
                         clientSecret = VKConstants.VK_SECRET,
@@ -44,12 +54,24 @@ class LoginViewModel @Inject constructor(
                     return@makeJob
                 }
 
-                sendEvent(
-                    SuccessAuth(
-                        userId = it.userId,
-                        vkToken = it.accessToken
-                    )
-                )
+                UserConfig.userId = it.userId
+                UserConfig.accessToken = it.accessToken
+
+                sendEvent(SuccessAuth())
+
+                // TODO: 19-Oct-21 do somewhen
+//                makeJob({
+//                    dataSource.authWithApp(
+//                        AuthWithAppRequest(
+//                            accessToken = it.accessToken
+//                        )
+//                    )
+//                }, onAnswer = { kindaAnswer ->
+//                    println("$TAG: AppAuthResponse: $kindaAnswer")
+//                }
+//                )
+
+
             },
             onError = {
                 if (it !is VKException) {
@@ -69,12 +91,14 @@ class LoginViewModel @Inject constructor(
         )
     }
 
+    fun openPrimaryScreen() {
+        router.navigateTo(Screens.Conversations())
+    }
+
 }
 
 object CodeSent : VkEvent()
 
 data class SuccessAuth(
-    val haveAuthorized: Boolean = true,
-    val userId: Int,
-    val vkToken: String
+    val haveAuthorized: Boolean = true
 ) : VkEvent()

app/src/main/kotlin/com/meloda/fast/screens/main/MainFragment.kt

@@ -1,45 +1,29 @@
 package com.meloda.fast.screens.main
 
 import android.os.Bundle
+import android.view.LayoutInflater
 import android.view.View
-import android.viewbinding.library.fragment.viewBinding
+import android.view.ViewGroup
 import androidx.fragment.app.viewModels
-import androidx.navigation.fragment.findNavController
-import com.meloda.fast.R
-import com.meloda.fast.api.UserConfig
 import com.meloda.fast.base.BaseViewModelFragment
-import com.meloda.fast.databinding.FragmentMainBinding
-import com.meloda.fast.extensions.NavigationExtensions.setupWithNavController
 import dagger.hilt.android.AndroidEntryPoint
 
 @AndroidEntryPoint
-class MainFragment : BaseViewModelFragment<MainViewModel>(R.layout.fragment_main) {
+class MainFragment : BaseViewModelFragment<MainViewModel>() {
 
     override val viewModel: MainViewModel by viewModels()
-    private val binding: FragmentMainBinding by viewBinding()
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        return View(context)
+    }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
 
-        if (!UserConfig.isLoggedIn()) findNavController().navigate(R.id.toLogin)
-        else if (savedInstanceState == null) setupBottomBar()
+        viewModel.checkSession(requireContext())
     }
-
-    private fun setupBottomBar() {
-        val navGraphIds = listOf(
-            R.navigation.messages,
-            R.navigation.login
-        )
-
-        with(binding.bottomBar) {
-            selectedItemId = R.id.messages
-            setupWithNavController(
-                navGraphIds = navGraphIds,
-                fragmentManager = childFragmentManager,
-                containerId = R.id.fragmentContainer,
-                intent = requireActivity().intent
-            )
-        }
-    }
-
 }

app/src/main/kotlin/com/meloda/fast/screens/main/MainViewModel.kt

@@ -1,5 +1,30 @@
 package com.meloda.fast.screens.main
 
+import android.content.Context
+import android.content.Intent
+import com.github.terrakok.cicerone.Router
+import com.meloda.fast.api.UserConfig
 import com.meloda.fast.base.viewmodel.BaseViewModel
+import com.meloda.fast.common.Screens
+import com.meloda.fast.service.MessagesUpdateService
+import com.meloda.fast.service.OnlineService
+import dagger.hilt.android.lifecycle.HiltViewModel
+import javax.inject.Inject
 
-class MainViewModel : BaseViewModel()
+@HiltViewModel
+class MainViewModel @Inject constructor(private val router: Router) : BaseViewModel() {
+
+    fun checkSession(context: Context) {
+        if (UserConfig.isLoggedIn()) {
+            router.navigateTo(Screens.Conversations())
+
+            context.run {
+                startService(Intent(this, MessagesUpdateService::class.java))
+                startService(Intent(this, OnlineService::class.java))
+            }
+        } else {
+            router.navigateTo(Screens.Login())
+        }
+    }
+
+}

app/src/main/kotlin/com/meloda/fast/screens/messages/AttachmentInflater.kt

@@ -1,24 +1,19 @@
 package com.meloda.fast.screens.messages
 
 import android.content.Context
-import android.content.res.ColorStateList
+import android.content.res.Resources
+import android.graphics.Color
 import android.graphics.drawable.ColorDrawable
 import android.util.Log
-import android.view.Gravity
 import android.view.LayoutInflater
 import android.view.ViewGroup
-import android.widget.FrameLayout
-import android.widget.ImageView
 import android.widget.Space
-import androidx.appcompat.widget.AppCompatImageView
 import androidx.appcompat.widget.LinearLayoutCompat
+import androidx.constraintlayout.widget.ConstraintLayout
 import androidx.core.content.ContextCompat
-import androidx.core.view.isNotEmpty
-import androidx.core.view.isVisible
-import androidx.core.view.setPadding
-import androidx.core.view.updatePadding
-import coil.load
-import com.google.android.material.imageview.ShapeableImageView
+import androidx.core.view.*
+import com.bumptech.glide.Priority
+import com.bumptech.glide.load.engine.DiskCacheStrategy
 import com.meloda.fast.R
 import com.meloda.fast.api.UserConfig
 import com.meloda.fast.api.VkUtils
@@ -27,8 +22,10 @@ import com.meloda.fast.api.model.VkMessage
 import com.meloda.fast.api.model.VkUser
 import com.meloda.fast.api.model.attachments.*
 import com.meloda.fast.databinding.*
+import com.meloda.fast.extensions.*
+import com.meloda.fast.extensions.ImageLoader.clear
+import com.meloda.fast.extensions.ImageLoader.loadWithGlide
 import com.meloda.fast.util.AndroidUtils
-import com.meloda.fast.widget.RoundedFrameLayout
 import java.text.SimpleDateFormat
 import java.util.*
 import kotlin.math.roundToInt
@@ -46,10 +43,18 @@ class AttachmentInflater constructor(
 
     private val inflater = LayoutInflater.from(context)
 
-    private val playColor = ContextCompat.getColor(context, R.color.a3_700)
-    private val playBackgroundColor = ContextCompat.getColor(context, R.color.a3_200)
+    private val colorBackground = ContextCompat.getColor(
+        context,
+        R.color.colorBackground
+    )
+    private val colorSecondary = ContextCompat.getColor(
+        context,
+        R.color.colorSecondary
+    )
 
-    var photoClickListener: ((url: String) -> Unit)? = null
+    private var photoClickListener: ((url: String) -> Unit)? = null
+
+    private val displayMetrics get() = Resources.getSystem().displayMetrics
 
     fun setPhotoClickListener(unit: ((url: String) -> Unit)?): AttachmentInflater {
         this.photoClickListener = unit
@@ -57,15 +62,15 @@ class AttachmentInflater constructor(
     }
 
     fun inflate() {
-        if (message.attachments.isNullOrEmpty()) return
-        attachments = message.attachments!!
-
         container.removeAllViews()
 
         if (textContainer.childCount > 1) {
             textContainer.removeViews(1, textContainer.childCount - 1)
         }
 
+        if (message.attachments.isNullOrEmpty()) return
+        attachments = message.attachments!!
+
         if (attachments.size == 1) {
             when (val attachment = attachments[0]) {
                 is VkSticker -> return sticker(attachment)
@@ -74,6 +79,7 @@ class AttachmentInflater constructor(
                 is VkCall -> return call(attachment)
                 is VkGraffiti -> return graffiti(attachment)
                 is VkGift -> return gift(attachment)
+                is VkStory -> return story(attachment)
             }
         }
 
@@ -113,112 +119,107 @@ class AttachmentInflater constructor(
     }
 
     private fun photo(photo: VkPhoto) {
-        val size = photo.getSizeOrSmaller('y') ?: return
+        val size = photo.getSizeOrSmaller(VkPhoto.SIZE_TYPE_807) ?: return
 
-        val newPhoto = ShapeableImageView(context).apply {
-            layoutParams = LinearLayoutCompat.LayoutParams(
-//                ViewGroup.LayoutParams.MATCH_PARENT,
-                size.width,
-                size.height
-//                AndroidUtils.px(size.width).roundToInt(),
-//                AndroidUtils.px(size.height).roundToInt()
-            )
+        val specRatio = size.width.toFloat() / size.height.toFloat()
+        val widthMultiplier: Float = when {
+            specRatio > 1 -> 0.7F
+            specRatio < 1 -> 0.45F
+            else -> 0.35F
+        }
+        val ratio = "${size.width}:${size.height}"
 
-            shapeAppearanceModel =
-                shapeAppearanceModel.withCornerSize {
-                    AndroidUtils.px(5)
-                }
-
-            scaleType = ImageView.ScaleType.CENTER_CROP
+        val spacer = Space(context).apply {
+            layoutParams =
+                LinearLayoutCompat.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 5.dpToPx())
         }
 
-        if (photoClickListener != null) {
-            newPhoto.setOnClickListener { photoClickListener?.invoke(size.url) }
-        } else {
-            newPhoto.setOnClickListener(null)
-        }
-
-        val spacer = Space(context).also {
-            it.layoutParams = LinearLayoutCompat.LayoutParams(
-                ViewGroup.LayoutParams.MATCH_PARENT,
-                AndroidUtils.px(5).roundToInt()
-            )
-        }
-
-        if (container.isNotEmpty())
+        if (container.isNotEmpty()) {
             container.addView(spacer)
+        }
 
-        if (attachments.size == 1) {
-            val roundedLayout = RoundedFrameLayout(context).apply {
-                setTopRightCornerRadius((if (message.isOut) 30 else 40).toFloat())
-                setTopLeftCornerRadius((if (message.isOut) 40 else 30).toFloat())
-                setBottomRightCornerRadius((if (message.isOut) 5 else 40).toFloat())
-                setBottomLeftCornerRadius((if (message.isOut) 40 else 5).toFloat())
+        val binding = ItemMessageAttachmentPhotoBinding.inflate(inflater, container, true)
+
+        val cornersRadius = 8.dpToPx().toFloat()
+
+        binding.border.run {
+            shapeAppearanceModel = shapeAppearanceModel.withCornerSize(cornersRadius)
+
+            updateLayoutParams<ConstraintLayout.LayoutParams> {
+                width = (displayMetrics.widthPixels * widthMultiplier).roundToInt()
+                dimensionRatio = ratio
+            }
+            loadWithGlide(
+                drawable = ColorDrawable(colorSecondary),
+                priority = Priority.IMMEDIATE,
+                cacheStrategy = DiskCacheStrategy.NONE
+            )
+        }
+
+        binding.image.run {
+            shapeAppearanceModel = shapeAppearanceModel.withCornerSize(cornersRadius * 0.8F)
+
+            if (photoClickListener != null) {
+                setOnClickListener { photoClickListener?.invoke(size.url) }
+            } else {
+                setOnClickListener(null)
             }
 
-            roundedLayout.addView(newPhoto)
-            container.addView(roundedLayout)
-        } else {
-            container.addView(newPhoto)
+            loadWithGlide(
+                url = size.url,
+                crossFade = true,
+                placeholderDrawable = ColorDrawable(colorBackground),
+                priority = Priority.LOW
+            )
         }
-
-        newPhoto.load(size.url) { crossfade(100) }
     }
 
     private fun video(video: VkVideo) {
-        val size = video.images[1]
-
-        val layout = FrameLayout(context).apply {
-            layoutParams = LinearLayoutCompat.LayoutParams(
-                ViewGroup.LayoutParams.WRAP_CONTENT,
-                ViewGroup.LayoutParams.WRAP_CONTENT
-            )
-        }
-
-        val newPhoto = ShapeableImageView(context).apply {
-            layoutParams = FrameLayout.LayoutParams(
-                AndroidUtils.px(size.width).roundToInt(),
-                AndroidUtils.px(size.height).roundToInt()
-            )
-
-            shapeAppearanceModel =
-                shapeAppearanceModel.withCornerSize { AndroidUtils.px(5) }
-            scaleType = ImageView.ScaleType.CENTER_CROP
-        }
-
-        val play = AppCompatImageView(context).apply {
-            layoutParams = FrameLayout.LayoutParams(
-                AndroidUtils.px(50).roundToInt(),
-                AndroidUtils.px(50).roundToInt()
-            ).also {
-                it.gravity = Gravity.CENTER
-            }
-
-            backgroundTintList = ColorStateList.valueOf(playBackgroundColor)
-            imageTintList = ColorStateList.valueOf(playColor)
-
-            setBackgroundResource(R.drawable.ic_play_button_circle_background)
-            setImageResource(R.drawable.ic_round_play_arrow_24)
-
-            setPadding(12)
-        }
-
-        layout.addView(newPhoto)
-        layout.addView(play)
-
         val spacer = Space(context).apply {
-            layoutParams = LinearLayoutCompat.LayoutParams(
-                ViewGroup.LayoutParams.MATCH_PARENT,
-                AndroidUtils.px(5).roundToInt()
+            layoutParams =
+                LinearLayoutCompat.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 5.dpToPx())
+        }
+        if (container.isNotEmpty()) {
+            container.addView(spacer)
+        }
+
+        val size = video.imageForWidthAtLeast(300) ?: return
+        val binding = ItemMessageAttachmentVideoBinding.inflate(inflater, container, true)
+
+        val specRatio = size.width.toFloat() / size.height.toFloat()
+        val widthMultiplier: Float = when {
+            specRatio > 1 -> 0.7F
+            specRatio < 1 -> 0.45F
+            else -> 0.35F
+        }
+        val ratio = "${size.width}:${size.height}"
+
+        val cornersRadius = 8.dpToPx().toFloat()
+
+        binding.border.run {
+            shapeAppearanceModel = shapeAppearanceModel.withCornerSize(cornersRadius)
+
+            updateLayoutParams<ConstraintLayout.LayoutParams> {
+                width = (displayMetrics.widthPixels * widthMultiplier).roundToInt()
+                dimensionRatio = ratio
+            }
+            loadWithGlide(
+                drawable = ColorDrawable(colorSecondary),
+                priority = Priority.IMMEDIATE,
+                cacheStrategy = DiskCacheStrategy.NONE
             )
         }
 
-        if (container.isNotEmpty())
-            container.addView(spacer)
+        binding.image.run {
+            shapeAppearanceModel = shapeAppearanceModel.withCornerSize(cornersRadius * 0.8F)
 
-        container.addView(layout)
-
-        newPhoto.load(size.url) { crossfade(100) }
+            loadWithGlide(
+                url = size.url,
+                crossFade = true,
+                placeholderDrawable = ColorDrawable(colorBackground),
+                priority = Priority.LOW
+            )
+        }
     }
 
     private fun audio(audio: VkAudio) {
@@ -245,14 +246,14 @@ class AttachmentInflater constructor(
         val binding = ItemMessageAttachmentLinkBinding.inflate(inflater, textContainer, true)
 
         binding.title.text = link.title
-        binding.title.isVisible = !link.title.isNullOrBlank()
+        binding.title.toggleVisibility(!link.title.isNullOrBlank())
 
         binding.caption.text = link.caption
-        binding.caption.isVisible = !link.caption.isNullOrBlank()
+        binding.caption.toggleVisibility(!link.caption.isNullOrBlank())
 
-        link.photo?.getSizeOrSmaller('y')?.let {
-            binding.preview.load(it.url) { crossfade(150) }
-            binding.linkIcon.isVisible = false
+        link.photo?.getSizeOrSmaller('y')?.let { size ->
+            binding.preview.loadWithGlide(url = size.url, crossFade = true)
+            binding.linkIcon.gone()
             return
         }
 
@@ -264,7 +265,7 @@ class AttachmentInflater constructor(
                 )
             )
         )
-        binding.linkIcon.isVisible = true
+        binding.linkIcon.visible()
     }
 
     private fun sticker(sticker: VkSticker) {
@@ -272,13 +273,12 @@ class AttachmentInflater constructor(
 
         val url = sticker.urlForSize(352)
 
-        with(binding.image) {
-            layoutParams = LinearLayoutCompat.LayoutParams(
-                AndroidUtils.px(140).roundToInt(),
-                AndroidUtils.px(140).roundToInt()
-            )
+        binding.image.run {
+            val size = 140.dpToPx()
 
-            load(url) { crossfade(150) }
+            layoutParams = LinearLayoutCompat.LayoutParams(size, size)
+
+            loadWithGlide(url = url, crossFade = true)
         }
     }
 
@@ -307,14 +307,14 @@ class AttachmentInflater constructor(
         }
 
         binding.postTitle.text = context.getString(postTitleRes)
-        binding.postTitle.isVisible = false
+        binding.postTitle.gone()
 
-        binding.avatar.isVisible = group != null || user != null
+        binding.avatar.toggleVisibility(group != null || user != null)
 
         if (binding.avatar.isVisible) {
-            binding.avatar.load(avatar) { crossfade(150) }
+            binding.avatar.loadWithGlide(url = avatar, crossFade = true)
         } else {
-            binding.avatar.setImageDrawable(null)
+            binding.avatar.clear()
         }
 
         binding.title.text = title
@@ -328,12 +328,13 @@ class AttachmentInflater constructor(
     private fun voice(voiceMessage: VkVoiceMessage) {
         val binding = ItemMessageAttachmentVoiceBinding.inflate(inflater, textContainer, true)
 
-        if (message.isOut)
+        if (message.isOut) {
+            val padding = 6.dpToPx()
             binding.root.updatePadding(
-                bottom = AndroidUtils.px(6).roundToInt(),
-                left = AndroidUtils.px(6).roundToInt()
+                bottom = padding,
+                left = padding
             )
-
+        }
         val waveform = IntArray(voiceMessage.waveform.size)
         voiceMessage.waveform.forEachIndexed { index, i -> waveform[index] = i }
 
@@ -352,8 +353,8 @@ class AttachmentInflater constructor(
 
         if (message.isOut)
             binding.root.updatePadding(
-                bottom = AndroidUtils.px(5).roundToInt(),
-                left = AndroidUtils.px(6).roundToInt()
+                bottom = 5.dpToPx(),
+                left = 6.dpToPx()
             )
 
         val callType =
@@ -383,15 +384,17 @@ class AttachmentInflater constructor(
 
         val url = graffiti.url
 
-        val heightCoefficient = graffiti.height / AndroidUtils.px(140)
+        val size = 140.dpToPx()
 
-        with(binding.image) {
+        val heightCoefficient = graffiti.height / size.toFloat()
+
+        binding.image.run {
             layoutParams = LinearLayoutCompat.LayoutParams(
-                AndroidUtils.px(140).roundToInt(),
+                size,
                 (graffiti.height / heightCoefficient).roundToInt()
             )
 
-            load(url) { crossfade(150) }
+            loadWithGlide(url = url, crossFade = true)
         }
     }
 
@@ -400,16 +403,72 @@ class AttachmentInflater constructor(
 
         val url = gift.thumb256 ?: gift.thumb96 ?: gift.thumb48
 
-        with(binding.image) {
-            shapeAppearanceModel = shapeAppearanceModel.withCornerSize { AndroidUtils.px(12) }
+        binding.image.run {
+            val size = 140.dpToPx()
 
-            layoutParams = LinearLayoutCompat.LayoutParams(
-                AndroidUtils.px(140).roundToInt(),
-                AndroidUtils.px(140).roundToInt()
-            )
+            shapeAppearanceModel = shapeAppearanceModel.withCornerSize(12.dpToPx().toFloat())
 
-            load(url) { crossfade(150) }
+            layoutParams = LinearLayoutCompat.LayoutParams(size, size)
+
+            loadWithGlide(url = url, crossFade = true)
         }
     }
 
+    private fun story(story: VkStory) {
+        val binding = ItemMessageAttachmentStoryBinding.inflate(inflater, container, true)
+
+        val photoUrl = story.photo?.getSizeOrSmaller(VkPhoto.SIZE_TYPE_807)?.url
+
+        val dimmerDrawable =
+            ContextCompat.getDrawable(context, R.drawable.ic_message_attachment_story_image_dimmer)
+
+        val cornersRadius = 24.dpToPx()
+
+        binding.caption.updateLayoutParams<ConstraintLayout.LayoutParams> {
+            val margin = cornersRadius / 2
+            updateMarginsRelative(
+                top = margin,
+                start = margin,
+                end = margin,
+                bottom = margin
+            )
+        }
+
+        binding.dimmer.loadWithGlide(
+            drawable = dimmerDrawable,
+            transformations = listOf(TypeTransformations.RoundedCornerCrop(cornersRadius)),
+            priority = Priority.IMMEDIATE,
+            cacheStrategy = DiskCacheStrategy.NONE
+        )
+
+        binding.image.run {
+            shapeAppearanceModel = shapeAppearanceModel.withCornerSize(cornersRadius.toFloat())
+
+            loadWithGlide(
+                url = photoUrl,
+                crossFade = true,
+                placeholderDrawable = ColorDrawable(Color.GRAY)
+            )
+        }
+
+        if (story.ownerId == UserConfig.userId) {
+            binding.caption.text = context.getString(R.string.message_attachment_story_your_story)
+        } else {
+            val storyOwnerUser = if (story.isFromUser()) profiles[story.ownerId] else null
+            val storyOwnerGroup = if (story.isFromGroup()) groups[story.ownerId] else null
+
+            val ownerName = when {
+                storyOwnerUser != null -> storyOwnerUser.fullName
+                storyOwnerGroup != null -> storyOwnerGroup.name
+                else -> null
+            }
+
+            binding.caption.text = context.getString(
+                R.string.message_attachment_story_story_from,
+                ownerName
+            )
+            binding.caption.toggleVisibility(ownerName != null)
+            binding.dimmer.toggleVisibility(binding.caption.isVisible)
+        }
+    }
 }

app/src/main/kotlin/com/meloda/fast/screens/messages/MessagesHistoryAdapter.kt

@@ -1,8 +1,10 @@
 package com.meloda.fast.screens.messages
 
+import android.annotation.SuppressLint
 import android.content.Context
 import android.graphics.Color
 import android.graphics.drawable.ColorDrawable
+import android.util.Log
 import android.view.View
 import android.view.ViewGroup
 import android.widget.Toast
@@ -19,76 +21,89 @@ import com.meloda.fast.api.model.VkUser
 import com.meloda.fast.api.model.attachments.VkPhoto
 import com.meloda.fast.base.adapter.BaseAdapter
 import com.meloda.fast.base.adapter.BaseHolder
-import com.meloda.fast.databinding.*
-import com.meloda.fast.util.AndroidUtils
-import java.util.*
-import kotlin.math.roundToInt
+import com.meloda.fast.databinding.ItemMessageInBinding
+import com.meloda.fast.databinding.ItemMessageOutBinding
+import com.meloda.fast.databinding.ItemMessageServiceBinding
+import com.meloda.fast.extensions.dpToPx
+import com.meloda.fast.model.DataItem
 
 class MessagesHistoryAdapter constructor(
     context: Context,
-    values: MutableList<VkMessage>,
     val conversation: VkConversation,
     val profiles: HashMap<Int, VkUser> = hashMapOf(),
     val groups: HashMap<Int, VkGroup> = hashMapOf()
-) : BaseAdapter<VkMessage, MessagesHistoryAdapter.BasicHolder>(context, values, COMPARATOR) {
+) : BaseAdapter<DataItem<Int>, MessagesHistoryAdapter.BasicHolder>(context, Comparator) {
 
     var avatarLongClickListener: ((position: Int) -> Unit)? = null
 
     override fun getItemViewType(position: Int): Int {
-        when {
-            isPositionHeader(position) -> return HEADER
-            isPositionFooter(position) -> return FOOTER
+        return when (val item = getItem(position)) {
+            is VkMessage -> {
+                return when {
+                    item.action != null -> TypeService
+                    item.isOut -> TypeOutgoing
+                    !item.isOut -> TypeIncoming
+                    else -> -1
+                }
+            }
+            is DataItem.Header -> {
+                return TypeHeader
+            }
+            is DataItem.Footer -> {
+                return TypeFooter
+            }
+            else -> -1
         }
-
-        getItem(position).let { message ->
-            if (message.action != null) return SERVICE
-            if (message.isOut) return OUTGOING
-            if (!message.isOut) return INCOMING
-        }
-
-        return -1
     }
 
-    private fun isPositionHeader(position: Int) = position == 0
-    private fun isPositionFooter(position: Int) = position >= actualSize
-
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): BasicHolder {
         return when (viewType) {
             // magick numbers is great!
-            HEADER -> Header(createEmptyView(60))
-            FOOTER -> Footer(createEmptyView(36))
-            SERVICE -> ServiceMessage(
+            TypeHeader -> {
+                Header(createEmptyView(60))
+            }
+            TypeFooter -> {
+                Footer(
+                    createEmptyView(
+                        context.resources.getDimensionPixelSize(R.dimen.messages_history_input_panel_height_with_margins)
+                    )
+                )
+            }
+            TypeService -> ServiceMessage(
                 ItemMessageServiceBinding.inflate(inflater, parent, false)
             )
-            OUTGOING -> OutgoingMessage(
+            TypeOutgoing -> OutgoingMessage(
                 ItemMessageOutBinding.inflate(inflater, parent, false)
             )
-            INCOMING -> IncomingMessage(
+            TypeIncoming -> IncomingMessage(
                 ItemMessageInBinding.inflate(inflater, parent, false)
             )
             else -> throw IllegalStateException("Wrong viewType: $viewType")
         }
     }
 
-//    override fun initListeners(itemView: View, position: Int) {
-//        if (itemView is AdapterView<*>) return
-//
-//        itemView.setOnClickListener { onItemClickListener?.invoke(position, itemView) }
-//        itemView.setOnLongClickListener { itemLongClickListener.invoke(position) }
-//    }
+    override fun onBindViewHolder(holder: BasicHolder, position: Int) {
+        if (holder is Header || holder is Footer) {
+            Log.d(
+                "MessagesHistoryAdapter",
+                "onBindViewHolder: index $position, holder is ${holder.javaClass.simpleName}. Skip"
+            )
+            return
+        }
 
+        Log.d(
+            "MessagesHistoryAdapter",
+            "onBindViewHolder: index $position, holder is ${holder.javaClass.simpleName}. Bind"
+        )
 
-    val actualSize get() = values.size
-
-    override fun getItemCount(): Int {
-        if (actualSize == 0) return 2
-        return super.getItemCount() + 2
+        initListeners(holder.itemView, position)
+        holder.bind(position)
     }
 
     private fun createEmptyView(size: Int) = View(context).apply {
         layoutParams = ViewGroup.LayoutParams(
             ViewGroup.LayoutParams.MATCH_PARENT,
-            AndroidUtils.px(size).roundToInt()
+            size
         )
 
         isEnabled = false
@@ -96,13 +111,6 @@ class MessagesHistoryAdapter constructor(
         isFocusable = false
     }
 
-    override fun onBindViewHolder(holder: BasicHolder, position: Int) {
-        if (holder is Header || holder is Footer) return
-
-        initListeners(holder.itemView, position)
-        holder.bind(position)
-    }
-
     open inner class BasicHolder(v: View = View(context)) : BaseHolder(v)
 
     inner class Header(v: View) : BasicHolder(v)
@@ -114,10 +122,10 @@ class MessagesHistoryAdapter constructor(
     ) : BasicHolder(binding.root) {
 
         override fun bind(position: Int) {
-            val message = getItem(position)
+            val message = getItem(position) as VkMessage
 
-            val prevMessage = getOrNull(position - 1)
-            val nextMessage = getOrNull(position + 1)
+            val prevMessage = getVkMessage(getOrNull(position - 1))
+            val nextMessage = getVkMessage(getOrNull(position + 1))
 
             MessagesPreparator(
                 context = context,
@@ -159,9 +167,8 @@ class MessagesHistoryAdapter constructor(
     ) : BasicHolder(binding.root) {
 
         override fun bind(position: Int) {
-            val message = getItem(position)
-
-            val prevMessage = getOrNull(position - 1)
+            val message = getItem(position) as VkMessage
+            val prevMessage = getVkMessage(getOrNull(position - 1))
 
             MessagesPreparator(
                 context = context,
@@ -192,13 +199,12 @@ class MessagesHistoryAdapter constructor(
         private val youPrefix = context.getString(R.string.you_message_prefix)
 
         init {
-            binding.photo.shapeAppearanceModel.run {
-                withCornerSize { AndroidUtils.px(4) }
-            }
+            binding.photo.shapeAppearanceModel =
+                binding.photo.shapeAppearanceModel.withCornerSize(4.dpToPx().toFloat())
         }
 
         override fun bind(position: Int) {
-            val message = getItem(position)
+            val message = getItem(position) as VkMessage
 
             val messageUser =
                 if (message.isUser()) profiles[message.fromId]
@@ -241,59 +247,56 @@ class MessagesHistoryAdapter constructor(
         }
     }
 
-    fun removeMessageById(id: Int): Int? {
-        for (i in values.indices) {
-            val message = values[i]
-            if (message.id == id) {
-                values.removeAt(i)
-                return i
-            }
+    fun getVkMessage(item: DataItem<*>?): VkMessage? {
+        if (item == null) return null
+        if (item is VkMessage) return item
+
+        return null
+    }
+
+    fun searchMessageIndex(messageId: Int): Int? {
+        for (i in indices) {
+            val message = getItem(i)
+            if (message is VkMessage && message.id == messageId) return i
         }
 
         return null
     }
 
-    fun removeMessagesByIds(ids: List<Int>): List<Int> {
-        val positions = mutableListOf<Int>()
-
-        for (i in values.indices) {
-            val message = values[i]
-            if (ids.contains(message.id)) {
-                values.removeAt(i)
-                positions += i
-            }
-        }
-
-        return positions
-    }
-
-    fun searchMessageIndex(messageId: Int): Int? {
-        for (i in values.indices) {
-            val message = values[i]
-            if (message.id == messageId) return i
+    fun searchMessageById(messageId: Int): VkMessage? {
+        for (i in indices) {
+            val message = getItem(i)
+            if (message is VkMessage && message.id == messageId) return message
         }
 
         return null
     }
 
     companion object {
-        private const val SERVICE = 1
-        private const val HEADER = 0
-        private const val FOOTER = 2
-        private const val INCOMING = 3
-        private const val OUTGOING = 4
+        private const val TypeService = 1
+        private const val TypeHeader = 0
+        private const val TypeFooter = 2
+        private const val TypeIncoming = 3
+        private const val TypeOutgoing = 4
 
-
-        private val COMPARATOR = object : DiffUtil.ItemCallback<VkMessage>() {
+        private val Comparator = object : DiffUtil.ItemCallback<DataItem<Int>>() {
             override fun areItemsTheSame(
-                oldItem: VkMessage,
-                newItem: VkMessage
-            ) = false
+                oldItem: DataItem<Int>,
+                newItem: DataItem<Int>
+            ): Boolean {
+                return if (oldItem is VkMessage && newItem is VkMessage) {
+                    oldItem.id == newItem.id
+                } else {
+                    oldItem is DataItem.Footer && newItem is DataItem.Footer
+                            || oldItem is DataItem.Header && newItem is DataItem.Header
+                }
+            }
 
+            @SuppressLint("DiffUtilEquals")
             override fun areContentsTheSame(
-                oldItem: VkMessage,
-                newItem: VkMessage
-            ) = false
+                oldItem: DataItem<Int>,
+                newItem: DataItem<Int>
+            ): Boolean = oldItem == newItem
         }
     }
 }

app/src/main/kotlin/com/meloda/fast/screens/messages/MessagesHistoryFragment.kt

@@ -1,16 +1,21 @@
 package com.meloda.fast.screens.messages
 
+import android.animation.ValueAnimator
 import android.content.res.ColorStateList
 import android.graphics.drawable.ColorDrawable
 import android.os.Bundle
 import android.text.TextUtils
 import android.view.View
+import android.view.animation.LinearInterpolator
 import android.viewbinding.library.fragment.viewBinding
 import android.widget.Toast
+import androidx.annotation.ColorInt
+import androidx.annotation.ColorRes
 import androidx.coordinatorlayout.widget.CoordinatorLayout
 import androidx.core.content.ContextCompat
 import androidx.core.view.isVisible
 import androidx.core.view.setPadding
+import androidx.core.view.updateLayoutParams
 import androidx.core.widget.doAfterTextChanged
 import androidx.fragment.app.viewModels
 import androidx.lifecycle.MutableLiveData
@@ -32,7 +37,9 @@ import com.meloda.fast.base.viewmodel.StopProgressEvent
 import com.meloda.fast.base.viewmodel.VkEvent
 import com.meloda.fast.databinding.DialogMessageDeleteBinding
 import com.meloda.fast.databinding.FragmentMessagesHistoryBinding
-import com.meloda.fast.extensions.TextViewExtensions.clear
+import com.meloda.fast.extensions.*
+import com.meloda.fast.extensions.ImageLoader.clear
+import com.meloda.fast.extensions.ImageLoader.loadWithGlide
 import com.meloda.fast.util.AndroidUtils
 import com.meloda.fast.util.TimeUtils
 import dagger.hilt.android.AndroidEntryPoint
@@ -41,10 +48,26 @@ import java.util.*
 import kotlin.concurrent.schedule
 import kotlin.math.roundToInt
 
+
 @AndroidEntryPoint
 class MessagesHistoryFragment :
     BaseViewModelFragment<MessagesHistoryViewModel>(R.layout.fragment_messages_history) {
 
+    companion object {
+        const val ARG_USER: String = "user"
+        const val ARG_GROUP: String = "group"
+        const val ARG_CONVERSATION: String = "conversation"
+
+        private const val ATTACHMENT_PANEL_ANIMATION_DURATION = 150L
+
+        fun newInstance(bundle: Bundle): MessagesHistoryFragment {
+            val fragment = MessagesHistoryFragment()
+            fragment.arguments = bundle
+
+            return fragment
+        }
+    }
+
     override val viewModel: MessagesHistoryViewModel by viewModels()
     private val binding: FragmentMessagesHistoryBinding by viewBinding()
 
@@ -55,21 +78,20 @@ class MessagesHistoryFragment :
     }
 
     private val user: VkUser? by lazy {
-        requireArguments().getParcelable("user")
+        requireArguments().getParcelable(ARG_USER)
     }
 
     private val group: VkGroup? by lazy {
-        requireArguments().getParcelable("group")
+        requireArguments().getParcelable(ARG_GROUP)
     }
 
     private val conversation: VkConversation by lazy {
-        requireNotNull(requireArguments().getParcelable("conversation"))
+        requireNotNull(requireArguments().getParcelable(ARG_CONVERSATION))
     }
 
     private val adapter: MessagesHistoryAdapter by lazy {
-        MessagesHistoryAdapter(requireContext(), mutableListOf(), conversation).also {
+        MessagesHistoryAdapter(requireContext(), conversation).also {
             it.itemClickListener = this::onItemClick
-            it.itemLongClickListener = this::onItemLongClick
             it.avatarLongClickListener = this::onAvatarLongClickListener
         }
     }
@@ -90,6 +112,8 @@ class MessagesHistoryFragment :
             else -> null
         }
 
+        binding.back.setOnClickListener { requireActivity().onBackPressed() }
+
         binding.title.ellipsize = TextUtils.TruncateAt.END
         binding.status.ellipsize = TextUtils.TruncateAt.END
 
@@ -121,7 +145,7 @@ class MessagesHistoryFragment :
 
         binding.action.setOnClickListener { performAction() }
 
-        binding.recyclerView.addOnLayoutChangeListener { _, i, i2, i3, bottom, i5, i6, i7, oldBottom ->
+        binding.recyclerView.addOnLayoutChangeListener { _, _, _, _, bottom, _, _, _, oldBottom ->
             if (bottom >= oldBottom) return@addOnLayoutChangeListener
             val lastVisiblePosition =
                 (binding.recyclerView.layoutManager as LinearLayoutManager).findLastVisibleItemPosition()
@@ -138,8 +162,8 @@ class MessagesHistoryFragment :
                 val firstPosition =
                     (recyclerView.layoutManager as LinearLayoutManager).findFirstVisibleItemPosition()
 
-                val message = adapter.getOrNull(firstPosition)
-                message?.let {
+                adapter.getOrNull(firstPosition)?.let {
+                    if (it !is VkMessage) return
                     binding.timestamp.isVisible = true
 
                     val time = "${
@@ -158,7 +182,7 @@ class MessagesHistoryFragment :
 
                     timestampTimer = Timer()
                     timestampTimer?.schedule(2500) {
-                        recyclerView.post { binding.timestamp.isVisible = false }
+                        recyclerView.post { binding.timestamp.gone() }
                     }
                 }
 
@@ -185,6 +209,8 @@ class MessagesHistoryFragment :
                 .scaleY(1.25f)
                 .setDuration(100)
                 .withEndAction {
+                    if (getView() == null) return@withEndAction
+
                     binding.action.animate()
                         .scaleX(1f)
                         .scaleY(1f)
@@ -209,21 +235,37 @@ class MessagesHistoryFragment :
             }
         }
 
-        attachmentController.isPanelVisible.observe(viewLifecycleOwner) {
-            if (it) binding.message.setSelection(binding.message.text.toString().length)
+        attachmentController.isPanelVisible.observe(viewLifecycleOwner) { isVisible ->
+            if (isVisible) binding.message.setSelection(binding.message.text.toString().length)
 
-            val layoutParams = binding.refreshLayout.layoutParams as CoordinatorLayout.LayoutParams
-            layoutParams.bottomMargin =
-                if (it) (binding.attachmentPanel.height / 1.5).roundToInt() else 0
+            val currentMargin =
+                (binding.refreshLayout.layoutParams as CoordinatorLayout.LayoutParams).bottomMargin
+
+            val newMargin =
+                if (isVisible) (binding.attachmentPanel.measuredHeight / 1.5).roundToInt()
+                else 0
+
+            ValueAnimator.ofInt(currentMargin, newMargin).apply {
+                duration = ATTACHMENT_PANEL_ANIMATION_DURATION
+                interpolator = LinearInterpolator()
+
+                addUpdateListener { animator ->
+                    if (getView() == null) return@addUpdateListener
+                    val value = animator.animatedValue as Int
+                    binding.refreshLayout.updateLayoutParams<CoordinatorLayout.LayoutParams> {
+                        bottomMargin = value
+                    }
+                }
+            }.start()
         }
 
         binding.attachmentPanel.setOnClickListener c@{
             val message = attachmentController.message.value ?: return@c
 
-            val index = adapter.values.indexOf(message)
+            val index = adapter.indexOf(message)
             if (index == -1) return@c
 
-            binding.recyclerView.smoothScrollToPosition(index)
+            binding.recyclerView.scrollToPosition(index)
         }
 
         binding.dismissReply.setOnClickListener {
@@ -232,6 +274,11 @@ class MessagesHistoryFragment :
         }
     }
 
+    @ColorInt
+    private fun getColor(@ColorRes resId: Int): Int {
+        return ContextCompat.getColor(requireContext(), resId)
+    }
+
     private fun prepareAvatar() {
         val avatar = when {
             conversation.ownerId == VKConstants.FAST_GROUP_ID -> null
@@ -241,46 +288,49 @@ class MessagesHistoryFragment :
             else -> null
         }
 
-        binding.avatar.isVisible = avatar != null
+        val colorOnPrimary = getColor(R.color.colorOnPrimary)
+        val colorUserAvatarAction = getColor(R.color.colorUserAvatarAction)
+        val colorOnUserAvatarAction = getColor(R.color.colorOnUserAvatarAction)
+
+        val icLauncherColor = getColor(R.color.a1_500)
+
+        binding.avatar.toggleVisibility(avatar != null)
 
         if (avatar == null) {
-            binding.avatarPlaceholder.isVisible = true
+            binding.avatarPlaceholder.visible()
 
             if (conversation.ownerId == VKConstants.FAST_GROUP_ID) {
-                binding.placeholderBack.setImageDrawable(
-                    ColorDrawable(
-                        ContextCompat.getColor(requireContext(), R.color.a1_400)
-                    )
+                binding.placeholderBack.loadWithGlide(
+                    drawable = ColorDrawable(icLauncherColor),
+                    transformations = ImageLoader.userAvatarTransformations
                 )
                 binding.placeholder.imageTintList =
-                    ColorStateList.valueOf(ContextCompat.getColor(requireContext(), R.color.a1_0))
+                    ColorStateList.valueOf(colorOnPrimary)
                 binding.placeholder.setImageResource(R.drawable.ic_fast_logo)
                 binding.placeholder.setPadding(18)
             } else {
-                binding.placeholderBack.setImageDrawable(
-                    ColorDrawable(
-                        ContextCompat.getColor(requireContext(), R.color.n1_50)
-                    )
+                binding.placeholderBack.loadWithGlide(
+                    drawable = ColorDrawable(colorOnUserAvatarAction),
+                    transformations = ImageLoader.userAvatarTransformations
                 )
                 binding.placeholder.imageTintList =
-                    ColorStateList.valueOf(ContextCompat.getColor(requireContext(), R.color.n2_500))
+                    ColorStateList.valueOf(colorUserAvatarAction)
                 binding.placeholder.setImageResource(R.drawable.ic_account_circle_cut)
                 binding.placeholder.setPadding(0)
-                binding.avatar.setImageDrawable(null)
+                binding.avatar.clear()
             }
         } else {
             binding.avatar.load(avatar) {
                 crossfade(200)
                 target {
-                    binding.avatarPlaceholder.isVisible = false
+                    binding.avatarPlaceholder.gone()
                     binding.avatar.setImageDrawable(it)
                 }
             }
         }
 
-        binding.phantomIcon.isVisible = conversation.isPhantom
-        binding.online.isVisible = user?.online == true
-        binding.pin.isVisible = conversation.isPinned
+        binding.phantomIcon.toggleVisibility(conversation.isPhantom)
+        binding.online.toggleVisibility(user?.online)
     }
 
     private fun performAction() {
@@ -293,8 +343,10 @@ class MessagesHistoryFragment :
 
                 val date = System.currentTimeMillis()
 
+                val messageIndex = adapter.lastPosition
+
                 val message = VkMessage(
-                    id = -1,
+                    id = Int.MAX_VALUE,
                     text = messageText,
                     isOut = true,
                     peerId = conversation.id,
@@ -304,10 +356,10 @@ class MessagesHistoryFragment :
                     replyMessage = attachmentController.message.value
                 )
 
-                adapter.add(message)
-                adapter.notifyItemInserted(adapter.actualSize - 1)
-                binding.recyclerView.smoothScrollToPosition(adapter.lastPosition)
-                binding.message.clear()
+                adapter.add(message, beforeFooter = true, commitCallback = {
+                    binding.recyclerView.scrollToPosition(adapter.lastPosition)
+                    binding.message.clear()
+                })
 
                 val replyMessage = attachmentController.message.value
                 attachmentController.message.value = null
@@ -316,8 +368,13 @@ class MessagesHistoryFragment :
                     peerId = conversation.id,
                     message = messageText,
                     randomId = 0,
-                    replyTo = replyMessage?.id
-                ) { message.id = it }
+                    replyTo = replyMessage?.id,
+                    setId = { messageId ->
+                        val messageToUpdate = adapter[messageIndex] as VkMessage
+                        messageToUpdate.id = messageId
+                        adapter[messageIndex] = messageToUpdate
+                    }
+                )
             }
             Action.EDIT -> {
                 val message = attachmentController.message.value ?: return
@@ -336,6 +393,7 @@ class MessagesHistoryFragment :
             Action.DELETE -> attachmentController.message.value?.let {
                 showDeleteMessageDialog(it)
             }
+            else -> {}
         }
     }
 
@@ -346,12 +404,12 @@ class MessagesHistoryFragment :
             is StartProgressEvent -> onProgressStarted()
             is StopProgressEvent -> onProgressStopped()
 
-            is MessagesMarkAsImportant -> markMessagesAsImportant(event)
-            is MessagesLoaded -> refreshMessages(event)
-            is MessagesPin -> conversation.pinnedMessage = event.message
-            is MessagesUnpin -> conversation.pinnedMessage = null
-            is MessagesDelete -> deleteMessages(event)
-            is MessagesEdit -> editMessage(event)
+            is MessagesMarkAsImportantEvent -> markMessagesAsImportant(event)
+            is MessagesLoadedEvent -> refreshMessages(event)
+            is MessagesPinEvent -> conversation.pinnedMessage = event.message
+            is MessagesUnpinEvent -> conversation.pinnedMessage = null
+            is MessagesDeleteEvent -> deleteMessages(event)
+            is MessagesEditEvent -> editMessage(event)
         }
     }
 
@@ -395,26 +453,24 @@ class MessagesHistoryFragment :
         }
     }
 
-    private fun markMessagesAsImportant(event: MessagesMarkAsImportant) {
+    private fun markMessagesAsImportant(event: MessagesMarkAsImportantEvent) {
         var changed = false
         val positions = mutableListOf<Int>()
 
-        for (i in adapter.values.indices) {
-            val message = adapter.values[i]
+        for (i in adapter.indices) {
+            val message = adapter[i] as VkMessage
             message.important = event.important
             if (event.messagesIds.contains(message.id)) {
                 if (!changed) changed = true
 
                 positions.add(i)
 
-                adapter.values[i] = message
+                adapter[i] = message
             }
         }
-
-        if (changed) positions.forEach { adapter.notifyItemChanged(it) }
     }
 
-    private fun refreshMessages(event: MessagesLoaded) {
+    private fun refreshMessages(event: MessagesLoadedEvent) {
         adapter.profiles += event.profiles
         adapter.groups += event.groups
 
@@ -424,22 +480,23 @@ class MessagesHistoryFragment :
     private fun fillRecyclerView(values: List<VkMessage>) {
         val smoothScroll = adapter.isNotEmpty()
 
-        adapter.values.clear()
-        adapter.values += values.sortedBy { it.date }
-        adapter.notifyItemRangeChanged(0, adapter.itemCount)
-
-        if (smoothScroll) binding.recyclerView.smoothScrollToPosition(adapter.lastPosition)
-        else binding.recyclerView.scrollToPosition(adapter.lastPosition)
+        adapter.setItems(
+            values.sortedBy { it.date },
+            withHeader = true,
+            withFooter = true,
+            commitCallback = {
+                if (smoothScroll) binding.recyclerView.smoothScrollToPosition(adapter.lastPosition)
+                else binding.recyclerView.scrollToPosition(adapter.lastPosition)
+            }
+        )
     }
 
     private fun onItemClick(position: Int) {
         showOptionsDialog(position)
     }
 
-    private fun onItemLongClick(position: Int) = true
-
     private fun onAvatarLongClickListener(position: Int) {
-        val message = adapter.values[position]
+        val message = adapter[position] as VkMessage
 
         val messageUser = VkUtils.getMessageUser(message, adapter.profiles)
         val messageGroup = VkUtils.getMessageGroup(message, adapter.groups)
@@ -449,7 +506,7 @@ class MessagesHistoryFragment :
     }
 
     private fun showOptionsDialog(position: Int) {
-        val message = adapter.values[position]
+        val message = adapter[position] as VkMessage
         if (message.action != null) return
 
         val time = getString(
@@ -577,16 +634,14 @@ class MessagesHistoryFragment :
             .show()
     }
 
-    private fun deleteMessages(event: MessagesDelete) {
-        adapter.removeMessagesByIds(event.messagesIds).let {
-            it.forEach { index -> adapter.notifyItemRemoved(index) }
-        }
+    private fun deleteMessages(event: MessagesDeleteEvent) {
+        val messagesToDelete = event.messagesIds.mapNotNull { id -> adapter.searchMessageById(id) }
+        adapter.removeAll(messagesToDelete)
     }
 
-    private fun editMessage(event: MessagesEdit) {
+    private fun editMessage(event: MessagesEditEvent) {
         adapter.searchMessageIndex(event.message.id)?.let { index ->
-            adapter.values[index] = event.message
-            adapter.notifyItemChanged(index)
+            adapter[index] = event.message
         }
     }
 
@@ -610,8 +665,6 @@ class MessagesHistoryFragment :
         }
 
         private fun applyMessage(message: VkMessage) {
-            showPanel()
-
             val title = when {
                 message.isGroup() && message.group.value != null -> message.group.value?.name
                 message.isUser() && message.user.value != null -> message.user.value?.fullName
@@ -637,6 +690,8 @@ class MessagesHistoryFragment :
             if (isEditing) {
                 binding.message.setText(message.text)
             }
+
+            showPanel()
         }
 
         private fun clearMessage() {
@@ -651,28 +706,64 @@ class MessagesHistoryFragment :
             }
         }
 
-        private fun showPanel(duration: Long = 250) {
+        private fun showPanel() {
+            binding.attachmentPanel.visible()
+            binding.attachmentPanel.measure(
+                View.MeasureSpec.AT_MOST, View.MeasureSpec.UNSPECIFIED
+            )
+
             if (attachmentController.isPanelVisible.value == false)
                 attachmentController.isPanelVisible.value = true
 
+            val measuredHeight = binding.attachmentPanel.measuredHeight
+
+            binding.attachmentPanel.updateLayoutParams<CoordinatorLayout.LayoutParams> {
+                height = 0
+            }
+
             binding.attachmentPanel.animate()
                 .translationY(0f)
-                .alpha(1f)
-                .setDuration(duration)
-                .withStartAction { binding.attachmentPanel.isVisible = true }
+                .setDuration(ATTACHMENT_PANEL_ANIMATION_DURATION)
                 .start()
+
+            ValueAnimator.ofInt(0, measuredHeight).apply {
+                duration = ATTACHMENT_PANEL_ANIMATION_DURATION
+                interpolator = LinearInterpolator()
+
+                addUpdateListener { animator ->
+                    if (view == null) return@addUpdateListener
+                    val value = animator.animatedValue as Int
+                    binding.attachmentPanel.updateLayoutParams<CoordinatorLayout.LayoutParams> {
+                        height = value
+                    }
+                }
+            }.start()
         }
 
-        private fun hidePanel(duration: Long = 250) {
+        private fun hidePanel() {
             if (attachmentController.isPanelVisible.value == true)
                 attachmentController.isPanelVisible.value = false
 
+            val currentHeight = binding.attachmentPanel.height
+
             binding.attachmentPanel.animate()
-                .alpha(0f)
-                .translationY(50f)
-                .setDuration(duration)
-                .withEndAction { binding.attachmentPanel.isVisible = false }
+                .translationY(75F)
+                .setDuration(ATTACHMENT_PANEL_ANIMATION_DURATION)
                 .start()
+
+            ValueAnimator.ofInt(currentHeight, 0).apply {
+                duration = ATTACHMENT_PANEL_ANIMATION_DURATION
+                interpolator = LinearInterpolator()
+
+                addUpdateListener { animator ->
+                    if (view == null) return@addUpdateListener
+                    val value = animator.animatedValue as Int
+
+                    binding.attachmentPanel.updateLayoutParams<CoordinatorLayout.LayoutParams> {
+                        height = value
+                    }
+                }
+            }.start()
         }
 
     }

app/src/main/kotlin/com/meloda/fast/screens/messages/MessagesHistoryViewModel.kt

@@ -1,6 +1,8 @@
 package com.meloda.fast.screens.messages
 
 import androidx.lifecycle.viewModelScope
+import com.meloda.fast.api.LongPollEvent
+import com.meloda.fast.api.LongPollUpdatesParser
 import com.meloda.fast.api.VKConstants
 import com.meloda.fast.api.model.VkConversation
 import com.meloda.fast.api.model.VkGroup
@@ -16,12 +18,25 @@ import javax.inject.Inject
 
 @HiltViewModel
 class MessagesHistoryViewModel @Inject constructor(
-    private val messages: MessagesDataSource
+    private val messages: MessagesDataSource,
+    updatesParser: LongPollUpdatesParser
 ) : BaseViewModel() {
 
-    fun loadHistory(
-        peerId: Int
-    ) = viewModelScope.launch {
+    init {
+        updatesParser.onNewMessage {
+//            viewModelScope.launch { handleNewMessage(it) }
+        }
+
+        updatesParser.onMessageEdited {
+            viewModelScope.launch { handleEditedMessage(it) }
+        }
+    }
+
+    private suspend fun handleEditedMessage(event: LongPollEvent.VkMessageEditEvent) {
+        sendEvent(com.meloda.fast.screens.messages.MessagesEditEvent(event.message))
+    }
+
+    fun loadHistory(peerId: Int) = viewModelScope.launch {
         makeJob({
             messages.getHistory(
                 MessagesGetHistoryRequest(
@@ -66,7 +81,7 @@ class MessagesHistoryViewModel @Inject constructor(
                 }
 
                 sendEvent(
-                    MessagesLoaded(
+                    MessagesLoadedEvent(
                         count = response.count,
                         profiles = profiles,
                         groups = groups,
@@ -116,7 +131,7 @@ class MessagesHistoryViewModel @Inject constructor(
             onAnswer = {
                 val response = it.response ?: return@makeJob
                 sendEvent(
-                    MessagesMarkAsImportant(
+                    MessagesMarkAsImportantEvent(
                         messagesIds = response,
                         important = important
                     )
@@ -142,14 +157,14 @@ class MessagesHistoryViewModel @Inject constructor(
             },
                 onAnswer = {
                     val response = it.response ?: return@makeJob
-                    sendEvent(MessagesPin(response.asVkMessage()))
+                    sendEvent(MessagesPinEvent(response.asVkMessage()))
                 }
             )
         } else {
             makeJob({ messages.unpin(MessagesUnPinMessageRequest(peerId = peerId)) },
                 onAnswer = {
                     println("Fast::MessagesHistoryViewModel::unPin::Response::${it.response}")
-                    sendEvent(MessagesUnpin)
+                    sendEvent(MessagesUnpinEvent)
                 }
             )
         }
@@ -172,7 +187,7 @@ class MessagesHistoryViewModel @Inject constructor(
                     deleteForAll = deleteForAll
                 )
             )
-        }, onAnswer = { sendEvent(MessagesDelete(messagesIds = messagesIds ?: listOf())) })
+        }, onAnswer = { sendEvent(MessagesDeleteEvent(messagesIds = messagesIds ?: emptyList())) })
     }
 
     fun editMessage(
@@ -195,13 +210,13 @@ class MessagesHistoryViewModel @Inject constructor(
             },
             onAnswer = {
                 originalMessage.text = message
-                sendEvent(MessagesEdit(originalMessage))
+                sendEvent(com.meloda.fast.screens.messages.MessagesEditEvent(originalMessage))
             }
         )
     }
 }
 
-data class MessagesLoaded(
+data class MessagesLoadedEvent(
     val count: Int,
     val conversations: HashMap<Int, VkConversation>,
     val messages: List<VkMessage>,
@@ -209,21 +224,12 @@ data class MessagesLoaded(
     val groups: HashMap<Int, VkGroup>
 ) : VkEvent()
 
-data class MessagesMarkAsImportant(
-    val messagesIds: List<Int>,
-    val important: Boolean
-) : VkEvent()
+data class MessagesMarkAsImportantEvent(val messagesIds: List<Int>, val important: Boolean) : VkEvent()
 
-data class MessagesPin(
-    val message: VkMessage
-) : VkEvent()
+data class MessagesPinEvent(val message: VkMessage) : VkEvent()
 
-object MessagesUnpin : VkEvent()
+object MessagesUnpinEvent : VkEvent()
 
-data class MessagesDelete(
-    val messagesIds: List<Int>
-) : VkEvent()
+data class MessagesDeleteEvent(val messagesIds: List<Int>) : VkEvent()
 
-data class MessagesEdit(
-    val message: VkMessage
-) : VkEvent()
+data class MessagesEditEvent(val message: VkMessage) : VkEvent()

app/src/main/kotlin/com/meloda/fast/screens/messages/MessagesPreparator.kt

@@ -12,6 +12,7 @@ import androidx.core.content.ContextCompat
 import androidx.core.view.isVisible
 import coil.load
 import com.meloda.fast.R
+import com.meloda.fast.api.VKConstants
 import com.meloda.fast.api.VkUtils
 import com.meloda.fast.api.model.VkConversation
 import com.meloda.fast.api.model.VkGroup
@@ -19,6 +20,9 @@ import com.meloda.fast.api.model.VkMessage
 import com.meloda.fast.api.model.VkUser
 import com.meloda.fast.api.model.attachments.VkSticker
 import com.meloda.fast.common.AppGlobal
+import com.meloda.fast.extensions.gone
+import com.meloda.fast.extensions.toggleVisibility
+import com.meloda.fast.extensions.visible
 import com.meloda.fast.widget.BoundedLinearLayout
 import java.text.SimpleDateFormat
 import java.util.*
@@ -150,9 +154,7 @@ class MessagesPreparator constructor(
     }
 
     private fun prepareUnreadIndicator() {
-        if (unread != null) {
-            unread.isVisible = message.isRead(conversation)
-        }
+        unread?.toggleVisibility(!message.isRead(conversation))
     }
 
     private fun prepareSpacer() {
@@ -160,12 +162,20 @@ class MessagesPreparator constructor(
     }
 
     private fun prepareAttachments() {
+        attachmentContainer?.removeAllViews()
+
+        textContainer?.let { textContainer ->
+            if (textContainer.childCount > 1) {
+                textContainer.removeViews(1, textContainer.childCount - 1)
+            }
+        }
+
         if (attachmentContainer != null && textContainer != null) {
+
             if (message.attachments.isNullOrEmpty()) {
-                attachmentContainer.isVisible = false
-                attachmentContainer.removeAllViews()
+                attachmentContainer.gone()
             } else {
-                attachmentContainer.isVisible = true
+                attachmentContainer.visible()
 
                 AttachmentInflater(
                     context = context,
@@ -208,11 +218,23 @@ class MessagesPreparator constructor(
     private fun prepareText() {
         if (bubble != null && text != null) {
             if (message.text == null) {
-                text.isVisible = false
-                bubble.isVisible = !message.attachments.isNullOrEmpty()
+                text.gone()
+
+                val hasAttachments = !message.attachments.isNullOrEmpty()
+                var shouldBeVisible = hasAttachments
+                if (hasAttachments) {
+                    for (attachment in message.attachments ?: emptyList()) {
+                        if (VKConstants.separatedFromTextAttachments.contains(attachment.javaClass)) {
+                            shouldBeVisible = false
+                            break
+                        }
+                    }
+                }
+
+                bubble.toggleVisibility(shouldBeVisible)
             } else {
-                text.isVisible = true
-                bubble.isVisible = true
+                text.visible()
+                bubble.visible()
                 text.text = VkUtils.prepareMessageText(message.text ?: "")
             }
         }

app/src/main/kotlin/com/meloda/fast/service/LongPollService.kt

@@ -1,50 +0,0 @@
-package com.meloda.fast.service
-
-import android.util.Log
-import com.meloda.fast.api.network.messages.MessagesGetLongPollServerRequest
-import com.meloda.fast.api.network.messages.MessagesDataSource
-import com.meloda.fast.api.network.longpoll.LongPollRepo
-import kotlinx.coroutines.*
-import javax.inject.Inject
-import kotlin.coroutines.CoroutineContext
-
-class LongPollService {
-}
-
-class LongPollTask @Inject constructor(
-    private val dataSource: MessagesDataSource,
-    private val longPollRepo: LongPollRepo
-) : CoroutineScope {
-
-    companion object {
-        const val TAG = "LongPollTask"
-    }
-
-    private val job = SupervisorJob()
-
-    private val exceptionHandler = CoroutineExceptionHandler { _, throwable ->
-        Log.d(TAG, "error: $throwable")
-        throwable.printStackTrace()
-    }
-
-    override val coroutineContext: CoroutineContext
-        get() = Dispatchers.Default + job + exceptionHandler
-
-    fun startPolling(): Job {
-        if (job.isCompleted || job.isCancelled) throw Exception("Job is over")
-
-        return launch {
-            val serverInfo = dataSource.getLongPollServer(
-                MessagesGetLongPollServerRequest(
-                    needPts = true,
-                    version = 10
-                )
-            )
-
-            println("TESTJOPAAAAAA: $serverInfo")
-//            val response = serverInfo.response ?: return@launch
-
-
-        }
-    }
-}

app/src/main/kotlin/com/meloda/fast/service/MessagesUpdateService.kt

@@ -0,0 +1,182 @@
+package com.meloda.fast.service
+
+import android.app.Service
+import android.content.Intent
+import android.os.IBinder
+import android.util.Log
+import com.google.gson.JsonArray
+import com.google.gson.JsonObject
+import com.meloda.fast.api.LongPollUpdatesParser
+import com.meloda.fast.api.VKConstants
+import com.meloda.fast.api.VKException
+import com.meloda.fast.api.model.base.BaseVkLongPoll
+import com.meloda.fast.api.network.Answer
+import com.meloda.fast.api.network.longpoll.LongPollGetUpdatesRequest
+import com.meloda.fast.api.network.longpoll.LongPollRepo
+import com.meloda.fast.api.network.messages.MessagesDataSource
+import com.meloda.fast.api.network.messages.MessagesGetLongPollServerRequest
+import dagger.hilt.android.AndroidEntryPoint
+import kotlinx.coroutines.*
+import javax.inject.Inject
+import kotlin.coroutines.CoroutineContext
+
+@AndroidEntryPoint
+class MessagesUpdateService : Service(), CoroutineScope {
+
+    companion object {
+        const val TAG = "LongPollTask"
+    }
+
+    private val job = SupervisorJob()
+
+    private val exceptionHandler = CoroutineExceptionHandler { _, throwable ->
+        Log.d(TAG, "error: $throwable")
+        throwable.printStackTrace()
+    }
+
+    override val coroutineContext: CoroutineContext
+        get() = Dispatchers.Default + job + exceptionHandler
+
+    @Inject
+    lateinit var dataSource: MessagesDataSource
+
+    @Inject
+    lateinit var longPollRepo: LongPollRepo
+
+    @Inject
+    lateinit var updatesParser: LongPollUpdatesParser
+
+    override fun onBind(p0: Intent?): IBinder? {
+        return null
+    }
+
+    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
+        launch { startPolling().join() }
+        return START_STICKY
+    }
+
+    private fun startPolling(): Job {
+        if (job.isCompleted || job.isCancelled) throw Exception("Job is over")
+
+        return launch {
+            var serverInfo = getServerInfo()
+                ?: throw VKException(error = "bad VK response (server info)")
+
+            var lastUpdatesResponse: JsonObject? = getUpdatesResponse(serverInfo)
+                ?: throw VKException(error = "initiation error: bad VK response (last updates)")
+
+            var failCount = 0
+
+            while (job.isActive) {
+                if (lastUpdatesResponse == null) {
+                    failCount++
+                    serverInfo = getServerInfo()
+                        ?: throw VKException(error = "failed retrieving server info after error: bad VK response (server info #2)")
+                    lastUpdatesResponse = getUpdatesResponse(serverInfo)
+                    continue
+                }
+
+                when (lastUpdatesResponse["failed"]?.asInt) {
+                    1 -> {
+                        var newTs = lastUpdatesResponse["ts"]?.asInt
+                        if (newTs == null) {
+                            newTs = serverInfo.ts
+                            failCount++
+                        }
+
+                        lastUpdatesResponse = getUpdatesResponse(serverInfo.copy(ts = newTs))
+                    }
+                    2, 3 -> {
+                        serverInfo = getServerInfo()
+                            ?: throw VKException(
+                                error = "failed retrieving server info after error: bad VK response (server info #3)"
+                            )
+                        lastUpdatesResponse = getUpdatesResponse(serverInfo)
+                    }
+                    else -> {
+                        val newTs = lastUpdatesResponse["ts"]?.asInt
+
+                        if (newTs == null) {
+                            failCount++
+                        } else {
+                            val updates = lastUpdatesResponse["updates"]?.asJsonArray
+
+                            if (updates == null) {
+                                failCount++
+                            } else {
+                                updates.forEach { item ->
+                                    item.asJsonArray?.also {
+                                        launch {
+                                            handleUpdateEvent(it)
+                                        }
+                                    } ?: failCount++
+                                }
+                            }
+
+                            lastUpdatesResponse = getUpdatesResponse(serverInfo.copy(ts = newTs))
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    private suspend fun getServerInfo(): BaseVkLongPoll? {
+        val response = dataSource.getLongPollServer(
+            MessagesGetLongPollServerRequest(
+                needPts = true,
+                version = VKConstants.LP_VERSION
+            )
+        )
+
+        println("$TAG: serverInfoResponse: $response")
+
+        if (response is Answer.Error) return null
+        if (response is Answer.Success) {
+            return response.data.response
+        }
+
+        return null
+    }
+
+    private suspend fun getUpdatesResponse(server: BaseVkLongPoll): JsonObject? {
+        val response = dataSource.getLongPollUpdates(
+            serverUrl = "https://${server.server}",
+            params = LongPollGetUpdatesRequest(
+                key = server.key,
+                ts = server.ts,
+                wait = 25,
+                mode = 2 or 8 or 32 or 64 or 128
+            )
+        )
+
+        println("$TAG: lastUpdateResponse: $response")
+
+        if (response is Answer.Error) return null
+
+        if (response is Answer.Success) {
+            return response.data
+        }
+
+        return null
+    }
+
+    private fun handleUpdateEvent(eventJson: JsonArray) {
+//        println("$TAG: handleUpdateEvent: $eventJson")
+
+        updatesParser.parseNextUpdate(eventJson)
+    }
+
+//    fun <T : Any> registerListener(eventType: Int, listener: VkEventCallback<T>) =
+//        updatesParser.registerListener(eventType, listener)
+
+    override fun onDestroy() {
+        try {
+            job.cancel()
+        } catch (e: Exception) {
+        }
+        updatesParser.clearListeners()
+        super.onDestroy()
+    }
+
+}

app/src/main/kotlin/com/meloda/fast/service/OnlineService.kt

@@ -0,0 +1,75 @@
+package com.meloda.fast.service
+
+import android.app.Service
+import android.content.Intent
+import android.os.IBinder
+import android.util.Log
+import com.meloda.fast.api.UserConfig
+import com.meloda.fast.api.network.account.AccountDataSource
+import com.meloda.fast.api.network.account.AccountSetOfflineRequest
+import com.meloda.fast.api.network.account.AccountSetOnlineRequest
+import dagger.hilt.android.AndroidEntryPoint
+import kotlinx.coroutines.*
+import java.util.*
+import javax.inject.Inject
+import kotlin.concurrent.schedule
+import kotlin.coroutines.CoroutineContext
+
+@AndroidEntryPoint
+class OnlineService : Service(), CoroutineScope {
+
+    private companion object {
+        private const val TAG = "OnlineService"
+    }
+
+    private val job = SupervisorJob()
+
+    private val exceptionHandler = CoroutineExceptionHandler { _, throwable ->
+        Log.d(MessagesUpdateService.TAG, "error: $throwable")
+        throwable.printStackTrace()
+    }
+
+    override val coroutineContext: CoroutineContext
+        get() = Dispatchers.Default + job + exceptionHandler
+
+    @Inject
+    lateinit var dataSource: AccountDataSource
+
+    private var timer: Timer? = null
+
+    override fun onBind(intent: Intent?): IBinder? = null
+
+    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
+        timer = Timer().apply {
+            schedule(delay = 0, period = 60_000) {
+                launch {
+                    setOffline()
+                    delay(5000)
+                    setOnline()
+                }
+            }
+        }
+
+        return START_STICKY_COMPATIBILITY
+    }
+
+    private suspend fun setOnline() {
+        println("$TAG: setOnline()")
+        val response = dataSource.setOnline(
+            AccountSetOnlineRequest(
+                voip = false,
+                accessToken = UserConfig.fastToken
+            )
+        )
+    }
+
+    private suspend fun setOffline() {
+        println("$TAG: setOffline()")
+        val response = dataSource.setOffline(
+            AccountSetOfflineRequest(
+                accessToken = UserConfig.accessToken
+            )
+        )
+    }
+
+}

app/src/main/kotlin/com/meloda/fast/util/AndroidUtils.kt

@@ -4,7 +4,6 @@ import android.content.ClipData
 import android.content.Context
 import android.content.res.Configuration
 import android.net.NetworkCapabilities
-import android.util.DisplayMetrics
 import android.util.TypedValue
 import androidx.annotation.AttrRes
 import com.meloda.fast.common.AppGlobal
@@ -12,22 +11,8 @@ import com.meloda.fast.common.AppGlobal
 
 object AndroidUtils {
 
-    fun px(dp: Float): Float {
-        return dp * (AppGlobal.resources.displayMetrics.densityDpi.toFloat() / DisplayMetrics.DENSITY_DEFAULT)
-    }
-
-    fun px(dp: Int) = px(dp.toFloat())
-
-    fun dp(px: Float): Float {
-        return px / (AppGlobal.resources.displayMetrics.densityDpi.toFloat() / DisplayMetrics.DENSITY_DEFAULT)
-    }
-
-    fun dp(px: Int) = dp(px.toFloat())
-
     fun isDarkTheme(): Boolean {
-        val currentNightMode =
-            AppGlobal.resources.configuration.uiMode and Configuration.UI_MODE_NIGHT_MASK
-        return when (currentNightMode) {
+        return when (AppGlobal.resources.configuration.uiMode and Configuration.UI_MODE_NIGHT_MASK) {
             Configuration.UI_MODE_NIGHT_YES -> true
             else -> false
         }

app/src/main/kotlin/com/meloda/fast/widget/NoItemsView.kt

@@ -13,8 +13,7 @@ import androidx.annotation.StringRes
 import androidx.appcompat.content.res.AppCompatResources
 import androidx.core.view.isVisible
 import com.meloda.fast.R
-import com.meloda.fast.util.AndroidUtils
-import kotlin.math.roundToInt
+import com.meloda.fast.extensions.dpToPx
 
 @Suppress("UNCHECKED_CAST")
 class NoItemsView @JvmOverloads constructor(
@@ -43,7 +42,7 @@ class NoItemsView @JvmOverloads constructor(
     private fun create() {
         val a = context.obtainStyledAttributes(attrs, R.styleable.NoItemsView)
 
-        minimumWidth = AndroidUtils.px(256).roundToInt()
+        minimumWidth = 256.dpToPx()
         minimumHeight = minimumWidth
 
         orientation = VERTICAL
@@ -51,9 +50,12 @@ class NoItemsView @JvmOverloads constructor(
 
         noItemsPicture = ImageView(context)
 
-        val params = imageViewParams
-        params.height = AndroidUtils.px(64).roundToInt()
-        params.width = AndroidUtils.px(64).roundToInt()
+        val imageViewSize = 64.dpToPx()
+
+        val params = imageViewParams.apply {
+            height = imageViewSize
+            width = imageViewSize
+        }
 
         noItemsPicture.layoutParams = params
 
@@ -72,10 +74,10 @@ class NoItemsView @JvmOverloads constructor(
         noItemsTextView = TextView(context)
 
         val textParams = textViewParams
-        textParams.width = AndroidUtils.px(256).roundToInt()
+        textParams.width = 256.dpToPx()
 
         if (noItemsDrawable != null) {
-            textParams.topMargin = AndroidUtils.px(8).roundToInt()
+            textParams.topMargin = 8.dpToPx()
         }
 
         noItemsTextView.layoutParams = textParams

app/src/main/res/drawable/ic_message_attachment_story_image_dimmer.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+
+    <gradient
+        android:angle="-90"
+        android:endColor="@android:color/transparent"
+        android:startColor="#BF000000" />
+
+</shape>

app/src/main/res/drawable/ic_message_out_background.xml

@@ -4,9 +4,9 @@
 
     <stroke
         android:width="2dp"
-        android:color="@color/messageOutStrokeColor" />
+        android:color="?colorSurfaceVariant" />
 
-    <solid android:color="@color/messageOutColor" />
+    <solid android:color="?colorSurface" />
 
     <corners
         android:bottomLeftRadius="40dp"

app/src/main/res/drawable/ic_message_out_background_middle.xml

@@ -4,9 +4,9 @@
 
     <stroke
         android:width="2dp"
-        android:color="@color/messageOutStrokeColor" />
+        android:color="?colorSurfaceVariant" />
 
-    <solid android:color="@color/messageOutColor" />
+    <solid android:color="?colorSurface" />
 
     <corners
         android:bottomLeftRadius="40dp"

app/src/main/res/drawable/ic_message_out_background_middle_stroke.xml

@@ -2,7 +2,7 @@
 <shape xmlns:android="http://schemas.android.com/apk/res/android"
     android:shape="rectangle">
 
-    <solid android:color="@color/messageOutStrokeColor" />
+    <solid android:color="?colorSurfaceVariant" />
 
     <corners
         android:bottomLeftRadius="40dp"

app/src/main/res/drawable/ic_message_out_background_stroke.xml

@@ -2,7 +2,7 @@
 <shape xmlns:android="http://schemas.android.com/apk/res/android"
     android:shape="rectangle">
 
-    <solid android:color="@color/messageOutStrokeColor" />
+    <solid android:color="?colorSurfaceVariant" />
 
     <corners
         android:bottomLeftRadius="40dp"

app/src/main/res/drawable/ic_online_pc.xml

@@ -9,7 +9,7 @@
             <corners android:radius="50dp" />
             <stroke
                 android:width="2dp"
-                android:color="?android:windowBackground" />
+                android:color="?colorBackground" />
         </shape>
     </item>
 </layer-list>

app/src/main/res/drawable/ic_round_arrow_back_24.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M19,11H7.83l4.88,-4.88c0.39,-0.39 0.39,-1.03 0,-1.42 -0.39,-0.39 -1.02,-0.39 -1.41,0l-6.59,6.59c-0.39,0.39 -0.39,1.02 0,1.41l6.59,6.59c0.39,0.39 1.02,0.39 1.41,0 0.39,-0.39 0.39,-1.02 0,-1.41L7.83,13H19c0.55,0 1,-0.45 1,-1s-0.45,-1 -1,-1z" />
+</vector>

app/src/main/res/layout/activity_main.xml

@@ -1,21 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<layout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools">
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:orientation="vertical"
-        tools:context=".MainActivity">
-
-        <androidx.fragment.app.FragmentContainerView
-            android:id="@+id/fragmentContainer"
-            android:name="androidx.navigation.fragment.NavHostFragment"
-            android:layout_width="match_parent"
-            android:layout_height="0dp"
-            android:layout_weight="1"
-            app:defaultNavHost="true"
-            app:navGraph="@navigation/main" />
-    </LinearLayout>
-</layout>
+<androidx.fragment.app.FragmentContainerView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/root_fragment_container"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent" />

app/src/main/res/layout/dialog_captcha.xml

@@ -1,84 +1,78 @@
 <?xml version="1.0" encoding="utf-8"?>
-<layout xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools">
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:padding="@dimen/activity_horizontal_margin">
+
+    <com.google.android.material.imageview.ShapeableImageView
+        android:id="@+id/image"
+        android:layout_width="match_parent"
+        android:layout_height="100dp"
+        android:scaleType="fitCenter"
+        tools:src="@tools:sample/backgrounds/scenic" />
+
+    <LinearLayout
+        android:id="@+id/captchaContainer"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="@dimen/activity_vertical_margin"
+        android:orientation="horizontal">
+
+        <androidx.appcompat.widget.AppCompatImageView
+            android:id="@+id/captchaImage"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="16dp"
+            android:src="@drawable/ic_security"
+            app:tint="?colorAccent" />
+
+        <com.google.android.material.textfield.TextInputLayout
+            android:id="@+id/captchaLayout"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content">
+
+            <com.google.android.material.textfield.TextInputEditText
+                android:id="@+id/captchaInput"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:hint="@string/captcha_hint"
+                android:imeOptions="actionGo"
+                android:lines="1"
+                android:maxLines="1" />
+
+        </com.google.android.material.textfield.TextInputLayout>
+
+    </LinearLayout>
+
 
     <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:orientation="vertical"
-        android:padding="@dimen/activity_horizontal_margin">
+        android:gravity="center"
+        android:orientation="horizontal">
 
-        <com.google.android.material.imageview.ShapeableImageView
-            android:id="@+id/image"
-            android:layout_width="match_parent"
-            android:layout_height="100dp"
-            android:scaleType="fitCenter"
-            tools:src="@tools:sample/backgrounds/scenic" />
-
-        <LinearLayout
-            android:id="@+id/captchaContainer"
-            android:layout_width="match_parent"
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/cancel"
+            style="@style/Widget.MaterialComponents.Button.OutlinedButton"
+            android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_marginTop="@dimen/activity_vertical_margin"
-            android:orientation="horizontal">
+            android:layout_marginEnd="@dimen/activity_horizontal_margin"
+            android:layout_weight="1"
+            android:backgroundTint="@color/a1_600"
+            android:text="@android:string/cancel"
+            app:elevation="0dp" />
 
-            <androidx.appcompat.widget.AppCompatImageView
-                android:id="@+id/captchaImage"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_marginTop="16dp"
-                android:src="@drawable/ic_security"
-                app:tint="?colorAccent" />
-
-            <com.google.android.material.textfield.TextInputLayout
-                android:id="@+id/captchaLayout"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content">
-
-                <com.google.android.material.textfield.TextInputEditText
-                    android:id="@+id/captchaInput"
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:hint="@string/captcha_hint"
-                    android:imeOptions="actionGo"
-                    android:lines="1"
-                    android:maxLines="1" />
-
-            </com.google.android.material.textfield.TextInputLayout>
-
-        </LinearLayout>
-
-
-        <LinearLayout
-            android:layout_width="match_parent"
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/ok"
+            style="@style/Widget.MaterialComponents.Button.UnelevatedButton"
+            android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:gravity="center"
-            android:orientation="horizontal">
-
-            <com.google.android.material.button.MaterialButton
-                android:id="@+id/cancel"
-                style="@style/Widget.MaterialComponents.Button.OutlinedButton"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_marginEnd="@dimen/activity_horizontal_margin"
-                android:layout_weight="1"
-                android:backgroundTint="@color/a1_600"
-                android:text="@android:string/cancel"
-                app:elevation="0dp" />
-
-            <com.google.android.material.button.MaterialButton
-                android:id="@+id/ok"
-                style="@style/Widget.MaterialComponents.Button.UnelevatedButton"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_weight="1"
-                android:backgroundTint="@color/a3_200"
-                android:text="@android:string/ok"
-                app:elevation="0dp" />
-
-
-        </LinearLayout>
-
+            android:layout_weight="1"
+            android:backgroundTint="@color/a3_200"
+            android:text="@android:string/ok"
+            app:elevation="0dp" />
     </LinearLayout>
-</layout>
+</LinearLayout>

app/src/main/res/layout/dialog_message_delete.xml

@@ -1,22 +1,17 @@
 <?xml version="1.0" encoding="utf-8"?>
-<layout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto">
+<androidx.appcompat.widget.LinearLayoutCompat xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:paddingHorizontal="16dp"
+    android:paddingVertical="12dp">
 
-    <androidx.appcompat.widget.LinearLayoutCompat
+    <com.google.android.material.checkbox.MaterialCheckBox
+        android:id="@+id/check"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:paddingHorizontal="16dp"
-        android:paddingVertical="12dp">
-
-        <com.google.android.material.checkbox.MaterialCheckBox
-            android:id="@+id/check"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:paddingStart="12dp"
-            android:paddingEnd="12dp"
-            android:text="@string/message_delete_for_all"
-            app:useMaterialThemeColors="true" />
-
-    </androidx.appcompat.widget.LinearLayoutCompat>
-
-</layout>
+        android:paddingStart="12dp"
+        android:paddingEnd="12dp"
+        android:text="@string/message_delete_for_all"
+        app:useMaterialThemeColors="true" />
+</androidx.appcompat.widget.LinearLayoutCompat>

app/src/main/res/layout/dialog_validation.xml

@@ -1,77 +1,71 @@
 <?xml version="1.0" encoding="utf-8"?>
-<layout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto">
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:padding="@dimen/activity_horizontal_margin">
+
+    <LinearLayout
+        android:id="@+id/codeContainer"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="@dimen/activity_vertical_margin"
+        android:orientation="horizontal">
+
+        <androidx.appcompat.widget.AppCompatImageView
+            android:id="@+id/codeImage"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="16dp"
+            android:src="@drawable/ic_security"
+            app:tint="?colorAccent" />
+
+        <com.google.android.material.textfield.TextInputLayout
+            android:id="@+id/codeLayout"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content">
+
+            <com.google.android.material.textfield.TextInputEditText
+                android:id="@+id/codeInput"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:hint="@string/code_hint"
+                android:imeOptions="actionGo"
+                android:inputType="number"
+                android:lines="1"
+                android:maxLines="1" />
+
+        </com.google.android.material.textfield.TextInputLayout>
+
+    </LinearLayout>
+
 
     <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:orientation="vertical"
-        android:padding="@dimen/activity_horizontal_margin">
+        android:gravity="center"
+        android:orientation="horizontal">
 
-        <LinearLayout
-            android:id="@+id/codeContainer"
-            android:layout_width="match_parent"
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/cancel"
+            style="@style/Widget.MaterialComponents.Button.OutlinedButton"
+            android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_marginTop="@dimen/activity_vertical_margin"
-            android:orientation="horizontal">
+            android:layout_marginEnd="@dimen/activity_horizontal_margin"
+            android:layout_weight="1"
+            android:backgroundTint="@color/n1_900"
+            android:text="@android:string/cancel"
+            app:elevation="0dp" />
 
-            <androidx.appcompat.widget.AppCompatImageView
-                android:id="@+id/codeImage"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_marginTop="16dp"
-                android:src="@drawable/ic_security"
-                app:tint="?colorAccent" />
-
-            <com.google.android.material.textfield.TextInputLayout
-                android:id="@+id/codeLayout"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content">
-
-                <com.google.android.material.textfield.TextInputEditText
-                    android:id="@+id/codeInput"
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:hint="@string/code_hint"
-                    android:imeOptions="actionGo"
-                    android:inputType="number"
-                    android:lines="1"
-                    android:maxLines="1" />
-
-            </com.google.android.material.textfield.TextInputLayout>
-
-        </LinearLayout>
-
-
-        <LinearLayout
-            android:layout_width="match_parent"
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/ok"
+            style="@style/Widget.MaterialComponents.Button.UnelevatedButton"
+            android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:gravity="center"
-            android:orientation="horizontal">
-
-            <com.google.android.material.button.MaterialButton
-                android:id="@+id/cancel"
-                style="@style/Widget.MaterialComponents.Button.OutlinedButton"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_marginEnd="@dimen/activity_horizontal_margin"
-                android:layout_weight="1"
-                android:backgroundTint="@color/n1_900"
-                android:text="@android:string/cancel"
-                app:elevation="0dp" />
-
-            <com.google.android.material.button.MaterialButton
-                android:id="@+id/ok"
-                style="@style/Widget.MaterialComponents.Button.UnelevatedButton"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_weight="1"
-                android:backgroundTint="@color/a3_200"
-                android:text="@android:string/ok"
-                app:elevation="0dp" />
-
-
-        </LinearLayout>
-
+            android:layout_weight="1"
+            android:backgroundTint="@color/a3_200"
+            android:text="@android:string/ok"
+            app:elevation="0dp" />
     </LinearLayout>
-</layout>
+</LinearLayout>

app/src/main/res/layout/fragment_conversations.xml

@@ -1,142 +1,92 @@
 <?xml version="1.0" encoding="utf-8"?>
-<layout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools">
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
 
-    <androidx.coordinatorlayout.widget.CoordinatorLayout
+    <com.google.android.material.appbar.AppBarLayout
+        android:id="@+id/appBar"
         android:layout_width="match_parent"
-        android:layout_height="match_parent">
+        android:layout_height="wrap_content"
+        app:elevation="0dp">
 
-        <com.google.android.material.appbar.AppBarLayout
-            android:id="@+id/appBar"
+        <androidx.appcompat.widget.Toolbar
+            android:id="@+id/toolbar"
             android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            app:elevation="0dp">
+            android:layout_height="?actionBarSize"
+            android:background="?colorBackground"
+            android:elevation="0dp"
+            app:layout_scrollFlags="scroll|enterAlways|snap"
+            app:menu="@menu/fragment_conversations"
+            app:title="@string/title_messages"
+            app:titleTextColor="?colorOnBackground">
 
-            <com.google.android.material.appbar.CollapsingToolbarLayout
-                android:id="@+id/collapsingToolbarLayout"
-                android:layout_width="match_parent"
+            <androidx.appcompat.widget.LinearLayoutCompat
+                android:id="@+id/avatarContainer"
+                android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
-                android:elevation="0dp"
-                app:collapsedTitleTextAppearance="@style/CollapsingToolbarCollapsedTitle"
-                app:expandedTitleTextAppearance="@style/CollapsingToolbarTitle"
-                app:layout_scrollFlags="scroll|exitUntilCollapsed|snap"
-                app:title="Messages">
+                android:layout_gravity="end|center_vertical"
+                android:orientation="horizontal"
+                android:paddingStart="0dp"
+                android:paddingEnd="16dp"
+                app:layout_collapseMode="none">
 
-                <androidx.appcompat.widget.AppCompatImageView
-                    android:id="@+id/expandedImage"
-                    android:layout_width="match_parent"
-                    android:layout_height="140dp"
-                    android:elevation="0dp" />
+                <androidx.appcompat.widget.AppCompatImageButton
+                    android:id="@+id/search"
+                    android:layout_width="30dp"
+                    android:layout_height="30dp"
+                    android:layout_marginEnd="16dp"
+                    android:background="?selectableItemBackgroundBorderless"
+                    android:src="@drawable/ic_search"
+                    android:tint="?colorPrimary" />
 
-                <androidx.appcompat.widget.LinearLayoutCompat
-                    android:id="@+id/avatarContainer"
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:layout_gravity="bottom|end"
-                    android:orientation="horizontal"
-                    android:paddingStart="0dp"
-                    android:paddingEnd="30dp"
-                    android:paddingBottom="30dp"
-                    app:layout_collapseMode="none">
+                <com.meloda.fast.widget.CircleImageView
+                    android:id="@+id/avatar"
+                    android:layout_width="30dp"
+                    android:layout_height="30dp"
+                    tools:src="@tools:sample/avatars" />
 
-                    <androidx.appcompat.widget.AppCompatImageButton
-                        android:id="@+id/search"
-                        android:layout_width="30dp"
-                        android:layout_height="30dp"
-                        android:layout_marginEnd="16dp"
-                        android:background="?selectableItemBackgroundBorderless"
-                        android:src="@drawable/ic_search"
-                        android:tint="?colorSecondary3Variant" />
+            </androidx.appcompat.widget.LinearLayoutCompat>
+        </androidx.appcompat.widget.Toolbar>
+    </com.google.android.material.appbar.AppBarLayout>
 
-                    <com.meloda.fast.widget.CircleImageView
-                        android:id="@+id/avatar"
-                        android:layout_width="30dp"
-                        android:layout_height="30dp"
-                        tools:src="@tools:sample/avatars" />
+    <androidx.swiperefreshlayout.widget.SwipeRefreshLayout
+        android:id="@+id/refreshLayout"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        app:layout_behavior="@string/appbar_scrolling_view_behavior">
 
-                </androidx.appcompat.widget.LinearLayoutCompat>
-
-                <com.google.android.material.appbar.MaterialToolbar
-                    android:id="@+id/toolbar"
-                    android:layout_width="match_parent"
-                    android:layout_height="?actionBarSize"
-                    android:background="?android:windowBackground"
-                    android:elevation="0dp"
-                    app:layout_collapseMode="none"
-                    app:menu="@menu/fragment_conversations">
-
-                    <!--                    <androidx.appcompat.widget.LinearLayoutCompat-->
-                    <!--                        android:id="@+id/toolbarAvatarContainer"-->
-                    <!--                        android:layout_width="wrap_content"-->
-                    <!--                        android:layout_height="wrap_content"-->
-                    <!--                        android:layout_gravity="bottom|end"-->
-                    <!--                        android:layout_margin="30dp"-->
-                    <!--                        android:orientation="horizontal"-->
-                    <!--                        android:visibility="gone"-->
-                    <!--                        app:layout_collapseParallaxMultiplier="0.5">-->
-
-                    <!--                        <androidx.appcompat.widget.AppCompatImageButton-->
-                    <!--                            android:id="@+id/toolbarSearch"-->
-                    <!--                            android:layout_width="30dp"-->
-                    <!--                            android:layout_height="30dp"-->
-                    <!--                            android:layout_marginEnd="16dp"-->
-                    <!--                            android:background="?selectableItemBackgroundBorderless"-->
-                    <!--                            android:src="@drawable/ic_search"-->
-                    <!--                            android:tint="?colorSecondary3Variant" />-->
-
-                    <!--                        <com.meloda.fast.widget.CircleImageView-->
-                    <!--                            android:id="@+id/toolbarAvatar"-->
-                    <!--                            android:layout_width="30dp"-->
-                    <!--                            android:layout_height="30dp"-->
-                    <!--                            tools:src="@tools:sample/avatars" />-->
-
-                    <!--                    </androidx.appcompat.widget.LinearLayoutCompat>-->
-
-                </com.google.android.material.appbar.MaterialToolbar>
-
-            </com.google.android.material.appbar.CollapsingToolbarLayout>
-
-        </com.google.android.material.appbar.AppBarLayout>
-
-        <androidx.swiperefreshlayout.widget.SwipeRefreshLayout
-            android:id="@+id/refreshLayout"
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/recyclerView"
             android:layout_width="match_parent"
             android:layout_height="match_parent"
-            app:layout_behavior="@string/appbar_scrolling_view_behavior">
+            android:orientation="vertical"
+            android:scrollbars="vertical"
+            app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
+            tools:listitem="@layout/item_conversation" />
 
-            <androidx.recyclerview.widget.RecyclerView
-                android:id="@+id/recyclerView"
-                android:layout_width="match_parent"
-                android:layout_height="match_parent"
-                android:orientation="vertical"
-                android:scrollbars="vertical"
-                app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
-                tools:listitem="@layout/item_conversation" />
+    </androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
 
-        </androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
+    <ProgressBar
+        android:id="@+id/progressBar"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:visibility="gone"
+        tools:visibility="visible" />
 
-        <ProgressBar
-            android:id="@+id/progressBar"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center"
-            android:visibility="gone"
-            tools:visibility="visible" />
-
-        <com.google.android.material.floatingactionbutton.FloatingActionButton
-            android:id="@+id/createChat"
-            android:layout_width="56dp"
-            android:layout_height="56dp"
-            android:layout_gravity="end|bottom"
-            android:layout_margin="16dp"
-            android:src="@drawable/ic_baseline_create_24"
-            app:elevation="3dp"
-            app:fabSize="normal"
-            app:layout_behavior="com.google.android.material.behavior.HideBottomViewOnScrollBehavior"
-            app:pressedTranslationZ="1dp"
-            app:shapeAppearanceOverlay="@style/RoundedView.56"
-            tools:ignore="ContentDescription" />
-
-    </androidx.coordinatorlayout.widget.CoordinatorLayout>
-</layout>
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
+        android:id="@+id/createChat"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="end|bottom"
+        android:layout_margin="16dp"
+        android:src="@drawable/ic_baseline_create_24"
+        app:elevation="3dp"
+        app:fabSize="normal"
+        app:layout_behavior="com.google.android.material.behavior.HideBottomViewOnScrollBehavior"
+        app:pressedTranslationZ="1dp"
+        app:shapeAppearanceOverlay="@style/RoundedView.56"
+        tools:ignore="ContentDescription" />
+</androidx.coordinatorlayout.widget.CoordinatorLayout>

app/src/main/res/layout/fragment_login.xml

@@ -1,148 +1,141 @@
 <?xml version="1.0" encoding="utf-8"?>
-<layout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.appcompat.widget.LinearLayoutCompat xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools">
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/loginRoot"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
 
-    <androidx.appcompat.widget.LinearLayoutCompat
-        android:id="@+id/loginRoot"
+    <WebView
+        android:id="@+id/webView"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:orientation="vertical">
+        android:visibility="gone" />
 
-        <WebView
-            android:id="@+id/webView"
-            android:layout_width="0dp"
-            android:layout_height="0dp"
-            android:clickable="false"
-            android:focusable="false"
-            android:visibility="gone" />
+    <androidx.core.widget.NestedScrollView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:fillViewport="true">
 
-        <androidx.core.widget.NestedScrollView
+        <LinearLayout
             android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:fillViewport="true">
+            android:layout_height="wrap_content"
+            android:animateLayoutChanges="true"
+            android:gravity="center"
+            android:orientation="vertical"
+            android:padding="16dp">
+
+            <FrameLayout
+                android:id="@+id/logoContainer"
+                android:layout_width="140dp"
+                android:layout_height="140dp"
+                android:layout_gravity="center_horizontal">
+
+                <com.meloda.fast.widget.CircleImageView
+                    android:id="@+id/logoImage"
+                    android:layout_width="match_parent"
+                    android:layout_height="match_parent"
+                    android:layout_gravity="center"
+                    android:padding="42dp"
+                    android:src="@drawable/ic_fast_lightning"
+                    app:tint="?colorAccent" />
+            </FrameLayout>
+
+            <ProgressBar
+                android:id="@+id/progress"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="48dp"
+                android:visibility="gone"
+                tools:visibility="visible" />
 
             <LinearLayout
+                android:id="@+id/loginContainer"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
-                android:animateLayoutChanges="true"
-                android:gravity="center"
-                android:orientation="vertical"
-                android:padding="16dp">
+                android:layout_marginTop="48dp"
+                android:orientation="horizontal">
 
-                <FrameLayout
-                    android:id="@+id/logoContainer"
-                    android:layout_width="140dp"
-                    android:layout_height="140dp"
-                    android:layout_gravity="center_horizontal">
-
-                    <com.meloda.fast.widget.CircleImageView
-                        android:id="@+id/logoImage"
-                        android:layout_width="match_parent"
-                        android:layout_height="match_parent"
-                        android:layout_gravity="center"
-                        android:padding="42dp"
-                        android:src="@drawable/ic_fast_lightning"
-                        app:tint="?colorAccent" />
-                </FrameLayout>
-
-                <ProgressBar
-                    android:id="@+id/progress"
+                <androidx.appcompat.widget.AppCompatImageView
+                    android:id="@+id/loginImage"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
-                    android:layout_marginTop="48dp"
-                    android:visibility="gone"
-                    tools:visibility="visible" />
+                    android:layout_marginTop="16dp"
+                    android:src="@drawable/ic_baseline_account_circle_24"
+                    app:tint="?colorAccent" />
 
-                <LinearLayout
-                    android:id="@+id/loginContainer"
+                <com.google.android.material.textfield.TextInputLayout
+                    android:id="@+id/loginLayout"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
-                    android:layout_marginTop="48dp"
-                    android:orientation="horizontal">
+                    app:boxStrokeErrorColor="@android:color/transparent">
 
-                    <androidx.appcompat.widget.AppCompatImageView
-                        android:id="@+id/loginImage"
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:layout_marginTop="16dp"
-                        android:src="@drawable/ic_baseline_account_circle_24"
-                        app:tint="?colorAccent" />
-
-                    <com.google.android.material.textfield.TextInputLayout
-                        android:id="@+id/loginLayout"
+                    <com.google.android.material.textfield.TextInputEditText
+                        android:id="@+id/loginInput"
                         android:layout_width="match_parent"
-                        android:layout_height="wrap_content"
-                        app:boxStrokeErrorColor="@android:color/transparent">
+                        android:layout_height="48dp"
+                        android:hint="@string/login_hint"
+                        android:imeOptions="actionGo"
+                        android:inputType="textEmailAddress" />
 
-                        <com.google.android.material.textfield.TextInputEditText
-                            android:id="@+id/loginInput"
-                            android:layout_width="match_parent"
-                            android:layout_height="48dp"
-                            android:hint="@string/login_hint"
-                            android:imeOptions="actionGo"
-                            android:inputType="textEmailAddress" />
-
-                    </com.google.android.material.textfield.TextInputLayout>
-
-                </LinearLayout>
-
-                <LinearLayout
-                    android:id="@+id/passwordContainer"
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:layout_marginTop="@dimen/activity_vertical_margin"
-                    android:orientation="horizontal">
-
-                    <androidx.appcompat.widget.AppCompatImageView
-                        android:id="@+id/passwordImage"
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:layout_marginTop="16dp"
-                        android:src="@drawable/ic_key"
-                        app:tint="?colorAccent" />
-
-                    <com.google.android.material.textfield.TextInputLayout
-                        android:id="@+id/passwordLayout"
-                        android:layout_width="match_parent"
-                        android:layout_height="wrap_content"
-                        app:boxStrokeErrorColor="@android:color/transparent"
-                        app:passwordToggleEnabled="true"
-                        app:passwordToggleTint="?colorAccent">
-
-                        <com.google.android.material.textfield.TextInputEditText
-                            android:id="@+id/passwordInput"
-                            android:layout_width="match_parent"
-                            android:layout_height="48dp"
-                            android:fontFamily="@font/roboto_regular"
-                            android:hint="@string/password_login_hint"
-                            android:imeOptions="actionGo"
-                            android:typeface="normal" />
-
-                    </com.google.android.material.textfield.TextInputLayout>
-
-                </LinearLayout>
-
-                <com.google.android.material.button.MaterialButton
-                    android:id="@+id/auth"
-                    android:layout_width="wrap_content"
-                    android:layout_height="60dp"
-                    android:layout_gravity="center_horizontal|bottom"
-                    android:layout_marginTop="12dp"
-                    android:backgroundTint="@color/a1_600"
-                    android:fontFamily="@font/google_sans_medium"
-                    android:letterSpacing="0"
-                    android:paddingStart="24dp"
-                    android:paddingEnd="16dp"
-                    android:text="@string/log_in"
-                    android:textSize="14sp"
-                    app:cornerRadius="50dp"
-                    app:elevation="16dp"
-                    app:icon="@drawable/ic_arrow_end"
-                    app:iconGravity="end" />
+                </com.google.android.material.textfield.TextInputLayout>
 
             </LinearLayout>
 
-        </androidx.core.widget.NestedScrollView>
-    </androidx.appcompat.widget.LinearLayoutCompat>
-</layout>
+            <LinearLayout
+                android:id="@+id/passwordContainer"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="@dimen/activity_vertical_margin"
+                android:orientation="horizontal">
+
+                <androidx.appcompat.widget.AppCompatImageView
+                    android:id="@+id/passwordImage"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="16dp"
+                    android:src="@drawable/ic_key"
+                    app:tint="?colorAccent" />
+
+                <com.google.android.material.textfield.TextInputLayout
+                    android:id="@+id/passwordLayout"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    app:boxStrokeErrorColor="@android:color/transparent"
+                    app:passwordToggleEnabled="true"
+                    app:passwordToggleTint="?colorAccent">
+
+                    <com.google.android.material.textfield.TextInputEditText
+                        android:id="@+id/passwordInput"
+                        android:layout_width="match_parent"
+                        android:layout_height="48dp"
+                        android:fontFamily="@font/roboto_regular"
+                        android:hint="@string/password_login_hint"
+                        android:imeOptions="actionGo"
+                        android:typeface="normal" />
+
+                </com.google.android.material.textfield.TextInputLayout>
+
+            </LinearLayout>
+
+            <com.google.android.material.button.MaterialButton
+                android:id="@+id/auth"
+                android:layout_width="wrap_content"
+                android:layout_height="60dp"
+                android:layout_gravity="center_horizontal|bottom"
+                android:layout_marginTop="12dp"
+                android:backgroundTint="@color/a1_600"
+                android:fontFamily="@font/google_sans_medium"
+                android:letterSpacing="0"
+                android:paddingStart="24dp"
+                android:paddingEnd="16dp"
+                android:text="@string/log_in"
+                android:textSize="14sp"
+                app:cornerRadius="50dp"
+                app:elevation="16dp"
+                app:icon="@drawable/ic_arrow_end"
+                app:iconGravity="end" />
+        </LinearLayout>
+    </androidx.core.widget.NestedScrollView>
+</androidx.appcompat.widget.LinearLayoutCompat>

app/src/main/res/layout/fragment_main.xml

@@ -1,27 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<layout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto">
-
-    <androidx.coordinatorlayout.widget.CoordinatorLayout
-        android:layout_width="match_parent"
-        android:layout_height="match_parent">
-
-        <androidx.fragment.app.FragmentContainerView
-            android:id="@+id/fragmentContainer"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent" />
-
-        <com.google.android.material.bottomnavigation.BottomNavigationView
-            android:id="@+id/bottomBar"
-            android:layout_width="match_parent"
-            android:layout_height="48dp"
-            android:layout_gravity="bottom"
-            android:visibility="gone"
-            app:backgroundTint="?colorSurface"
-            app:elevation="0.5dp"
-            app:labelVisibilityMode="unlabeled"
-            app:menu="@menu/activity_main_bottom" />
-
-    </androidx.coordinatorlayout.widget.CoordinatorLayout>
-
-</layout>

app/src/main/res/layout/fragment_messages_history.xml

@@ -1,339 +1,328 @@
 <?xml version="1.0" encoding="utf-8"?>
-<layout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools">
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
 
-    <androidx.coordinatorlayout.widget.CoordinatorLayout
+    <androidx.swiperefreshlayout.widget.SwipeRefreshLayout
+        android:id="@+id/refreshLayout"
         android:layout_width="match_parent"
-        android:layout_height="match_parent">
+        android:layout_height="match_parent"
+        android:layout_marginTop="86dp">
 
-        <androidx.swiperefreshlayout.widget.SwipeRefreshLayout
-            android:id="@+id/refreshLayout"
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/recyclerView"
             android:layout_width="match_parent"
             android:layout_height="match_parent"
-            android:layout_marginTop="86dp">
+            app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
+            tools:itemCount="100"
+            tools:listitem="@layout/item_message_out" />
 
-            <androidx.recyclerview.widget.RecyclerView
-                android:id="@+id/recyclerView"
-                android:layout_width="match_parent"
-                android:layout_height="match_parent"
-                app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
-                tools:itemCount="100"
-                tools:listitem="@layout/item_message_out" />
+    </androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
 
-        </androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
+    <FrameLayout
+        android:id="@+id/toolbarContainer"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:animateLayoutChanges="true"
+        android:background="@drawable/ic_messages_history_toolbar_gradient_background"
+        android:backgroundTint="?colorBackground"
+        android:minHeight="140dp">
 
-        <FrameLayout
-            android:id="@+id/toolbarContainer"
+        <androidx.appcompat.widget.LinearLayoutCompat
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:animateLayoutChanges="true"
-            android:background="@drawable/ic_messages_history_toolbar_gradient_background"
-            android:backgroundTint="@color/n1_50"
-            android:minHeight="140dp">
+            android:orientation="horizontal"
+            android:paddingStart="12dp"
+            android:paddingTop="18dp"
+            android:paddingEnd="30dp"
+            android:paddingBottom="24dp">
 
-            <androidx.appcompat.widget.LinearLayoutCompat
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:orientation="horizontal"
-                android:paddingHorizontal="30dp"
-                android:paddingTop="18dp"
-                android:paddingBottom="24dp">
+            <androidx.appcompat.widget.AppCompatImageButton
+                android:id="@+id/back"
+                android:layout_width="36dp"
+                android:layout_height="36dp"
+                android:layout_gravity="center_vertical"
+                android:layout_marginEnd="12dp"
+                android:background="?selectableItemBackgroundBorderless"
+                android:src="@drawable/ic_round_arrow_back_24"
+                android:tint="?colorOnBackground" />
+
+            <FrameLayout
+                android:layout_width="48dp"
+                android:layout_height="48dp">
+
+                <com.meloda.fast.widget.CircleImageView
+                    android:id="@+id/avatar"
+                    android:layout_width="match_parent"
+                    android:layout_height="match_parent"
+                    tools:src="@tools:sample/avatars" />
 
                 <FrameLayout
-                    android:layout_width="56dp"
-                    android:layout_height="56dp">
+                    android:id="@+id/avatarPlaceholder"
+                    android:layout_width="match_parent"
+                    android:layout_height="match_parent">
 
-                    <com.meloda.fast.widget.CircleImageView
-                        android:id="@+id/avatar"
+                    <androidx.appcompat.widget.AppCompatImageView
+                        android:id="@+id/placeholderBack"
                         android:layout_width="match_parent"
                         android:layout_height="match_parent"
-                        tools:src="@tools:sample/avatars" />
+                        android:layout_margin="1dp"
+                        tools:src="@color/colorOnUserAvatarAction" />
 
-                    <FrameLayout
-                        android:id="@+id/avatarPlaceholder"
+                    <androidx.appcompat.widget.AppCompatImageView
+                        android:id="@+id/placeholder"
                         android:layout_width="match_parent"
-                        android:layout_height="match_parent">
-
-                        <com.meloda.fast.widget.CircleImageView
-                            android:id="@+id/placeholderBack"
-                            android:layout_width="match_parent"
-                            android:layout_height="match_parent"
-                            android:src="@color/n1_50" />
-
-                        <com.meloda.fast.widget.CircleImageView
-                            android:id="@+id/placeholder"
-                            android:layout_width="match_parent"
-                            android:layout_height="match_parent"
-                            android:src="@drawable/ic_account_circle_cut"
-                            app:tint="@color/n2_500" />
-
-                    </FrameLayout>
-
-                    <FrameLayout
-                        android:id="@+id/online"
-                        android:layout_width="20dp"
-                        android:layout_height="20dp"
-                        android:layout_gravity="end|bottom"
-                        android:visibility="gone"
-                        tools:visibility="visible">
-
-                        <com.meloda.fast.widget.CircleImageView
-                            android:layout_width="20dp"
-                            android:layout_height="20dp"
-                            android:layout_gravity="center"
-                            android:src="@color/n1_50" />
-
-                        <com.meloda.fast.widget.CircleImageView
-                            android:layout_width="14dp"
-                            android:layout_height="14dp"
-                            android:layout_gravity="center"
-                            android:src="@drawable/ic_online_pc"
-                            app:tint="?colorSecondary2" />
-
-                    </FrameLayout>
-
-                    <FrameLayout
-                        android:id="@+id/pin"
-                        android:layout_width="20dp"
-                        android:layout_height="20dp"
-                        android:layout_gravity="start|top"
-                        android:visibility="gone"
-                        tools:visibility="visible">
-
-                        <com.meloda.fast.widget.CircleImageView
-                            android:layout_width="18dp"
-                            android:layout_height="18dp"
-                            android:layout_gravity="center"
-                            android:background="@drawable/ic_back"
-                            android:backgroundTint="@color/n2_500"
-                            android:elevation="0.5dp" />
-
-                        <com.meloda.fast.widget.CircleImageView
-                            android:id="@+id/pinIcon"
-                            android:layout_width="14dp"
-                            android:layout_height="14dp"
-                            android:layout_gravity="center"
-                            android:elevation="1dp"
-                            android:src="@drawable/ic_round_push_pin_24"
-                            app:tint="@color/n2_0" />
-
-                    </FrameLayout>
-
-                    <FrameLayout
-                        android:id="@+id/service"
-                        android:layout_width="20dp"
-                        android:layout_height="20dp"
-                        android:layout_gravity="end|top"
-                        android:visibility="gone"
-                        tools:visibility="visible">
-
-                        <com.meloda.fast.widget.CircleImageView
-                            android:layout_width="18dp"
-                            android:layout_height="18dp"
-                            android:layout_gravity="center"
-                            android:background="@drawable/ic_back"
-                            android:backgroundTint="@color/n2_500"
-                            android:elevation="0.5dp" />
-
-                        <com.meloda.fast.widget.CircleImageView
-                            android:id="@+id/phantomIcon"
-                            android:layout_width="14dp"
-                            android:layout_height="14dp"
-                            android:layout_gravity="center"
-                            android:elevation="1dp"
-                            android:src="@drawable/ic_phantom"
-                            android:visibility="gone"
-                            app:tint="@color/n2_10"
-                            tools:visibility="visible" />
-
-                        <com.meloda.fast.widget.CircleImageView
-                            android:id="@+id/callIcon"
-                            android:layout_width="14dp"
-                            android:layout_height="14dp"
-                            android:layout_gravity="center"
-                            android:elevation="1dp"
-                            android:src="@drawable/ic_attachment_group_call"
-                            android:visibility="gone"
-                            app:tint="@color/n2_0" />
-
-                    </FrameLayout>
+                        android:layout_height="match_parent"
+                        android:src="@drawable/ic_account_circle_cut"
+                        app:tint="@color/colorUserAvatarAction" />
                 </FrameLayout>
 
-                <androidx.appcompat.widget.LinearLayoutCompat
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:layout_marginStart="12dp"
-                    android:orientation="vertical">
+                <FrameLayout
+                    android:id="@+id/online"
+                    android:layout_width="14dp"
+                    android:layout_height="14dp"
+                    android:layout_gravity="end|bottom"
+                    android:visibility="gone"
+                    tools:visibility="visible">
 
-                    <com.google.android.material.textview.MaterialTextView
-                        android:id="@+id/title"
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:maxLines="1"
-                        android:textColor="@color/n1_900"
-                        android:textSize="24sp"
-                        tools:text="@tools:sample/full_names" />
+                    <com.meloda.fast.widget.CircleImageView
+                        android:id="@+id/online_border"
+                        android:layout_width="match_parent"
+                        android:layout_height="match_parent"
+                        android:layout_gravity="center"
+                        android:src="?colorBackground" />
 
-                    <com.google.android.material.textview.MaterialTextView
-                        android:id="@+id/status"
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:alpha="0.7"
-                        android:maxLines="1"
-                        android:textColor="@color/n1_900"
-                        tools:text="Online" />
+                    <com.meloda.fast.widget.CircleImageView
+                        android:layout_width="10dp"
+                        android:layout_height="10dp"
+                        android:layout_gravity="center"
+                        android:src="@drawable/ic_online_pc"
+                        android:tint="?colorPrimaryVariant" />
 
-                </androidx.appcompat.widget.LinearLayoutCompat>
+                </FrameLayout>
 
-            </androidx.appcompat.widget.LinearLayoutCompat>
+                <FrameLayout
+                    android:id="@+id/service"
+                    android:layout_width="16dp"
+                    android:layout_height="16dp"
+                    android:layout_gravity="end|top"
+                    android:visibility="gone"
+                    tools:visibility="visible">
 
-            <com.google.android.material.chip.Chip
-                android:id="@+id/timestamp"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_gravity="center_horizontal|bottom"
-                android:layout_marginBottom="30dp"
-                android:elevation="2dp"
-                android:enabled="false"
-                android:paddingHorizontal="16dp"
-                android:paddingVertical="4dp"
-                android:textColor="@color/n1_900"
-                android:visibility="gone"
-                app:chipBackgroundColor="@color/n1_100"
-                app:textEndPadding="12dp"
-                app:textStartPadding="12dp"
-                tools:text="today"
-                tools:visibility="visible" />
+                    <com.meloda.fast.widget.CircleImageView
+                        android:layout_width="14dp"
+                        android:layout_height="14dp"
+                        android:layout_gravity="center"
+                        android:background="@drawable/ic_back"
+                        android:backgroundTint="@color/colorUserAvatarAction"
+                        android:elevation="0.5dp" />
 
-        </FrameLayout>
+                    <com.meloda.fast.widget.CircleImageView
+                        android:id="@+id/phantomIcon"
+                        android:layout_width="10dp"
+                        android:layout_height="10dp"
+                        android:layout_gravity="center"
+                        android:elevation="1dp"
+                        android:src="@drawable/ic_phantom"
+                        android:visibility="gone"
+                        app:tint="@color/colorOnUserAvatarAction"
+                        tools:visibility="gone" />
 
-        <androidx.appcompat.widget.LinearLayoutCompat
-            android:id="@+id/attachmentPanel"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_marginHorizontal="12dp"
-            android:layout_marginBottom="35dp"
-            android:background="@drawable/ic_chat_attachment_panel_background"
-            android:backgroundTint="@color/n2_100"
-            android:minHeight="105dp"
-            android:orientation="vertical"
-            android:padding="16dp"
-            android:visibility="gone"
-            app:layout_anchor="@+id/messagePanel"
-            app:layout_anchorGravity="center_vertical|top"
-            tools:visibility="visible">
+                    <com.meloda.fast.widget.CircleImageView
+                        android:id="@+id/callIcon"
+                        android:layout_width="10dp"
+                        android:layout_height="10dp"
+                        android:layout_gravity="center"
+                        android:elevation="1dp"
+                        android:src="@drawable/ic_attachment_group_call"
+                        android:visibility="gone"
+                        app:tint="@color/colorOnUserAvatarAction"
+                        tools:visibility="visible" />
+
+                </FrameLayout>
+            </FrameLayout>
 
             <androidx.appcompat.widget.LinearLayoutCompat
-                android:id="@+id/replyMessage"
-                android:layout_width="match_parent"
+                android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
+                android:layout_marginStart="12dp"
                 android:orientation="vertical">
 
-                <androidx.appcompat.widget.LinearLayoutCompat
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:gravity="center_vertical"
-                    android:orientation="horizontal">
-
-                    <com.google.android.material.textview.MaterialTextView
-                        android:id="@+id/replyMessageTitle"
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:layout_weight="1"
-                        android:ellipsize="end"
-                        android:maxLines="1"
-                        android:textColor="?textColorPrimary"
-                        app:fontFamily="@font/google_sans_regular"
-                        tools:text="Michael Bae" />
-
-                    <androidx.appcompat.widget.AppCompatImageButton
-                        android:id="@+id/dismissReply"
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:background="?selectableItemBackgroundBorderless"
-                        android:src="@drawable/ic_round_close_20"
-                        android:tint="@color/n1_800" />
-
-                </androidx.appcompat.widget.LinearLayoutCompat>
-
                 <com.google.android.material.textview.MaterialTextView
-                    android:id="@+id/replyMessageText"
+                    android:id="@+id/title"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
-                    android:ellipsize="end"
+                    android:fontFamily="@font/google_sans_regular"
                     android:maxLines="1"
-                    android:textColor="?textColorPrimary"
-                    android:textSize="16sp"
-                    app:fontFamily="@font/roboto_regular"
-                    tools:text="Short Message." />
+                    android:textColor="?colorOnBackground"
+                    android:textSize="20sp"
+                    tools:text="@tools:sample/full_names" />
+
+                <com.google.android.material.textview.MaterialTextView
+                    android:id="@+id/status"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:alpha="0.7"
+                    android:maxLines="1"
+                    android:textColor="?colorOnBackground"
+                    tools:text="Online" />
 
             </androidx.appcompat.widget.LinearLayoutCompat>
 
         </androidx.appcompat.widget.LinearLayoutCompat>
 
-        <FrameLayout
-            android:layout_width="match_parent"
-            android:layout_height="40dp"
-            android:layout_gravity="bottom"
-            android:background="@drawable/ic_message_panel_gradient"
-            android:backgroundTint="@color/n1_50" />
+        <com.google.android.material.chip.Chip
+            android:id="@+id/timestamp"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_horizontal|bottom"
+            android:layout_marginBottom="24dp"
+            android:elevation="2dp"
+            android:enabled="false"
+            android:paddingHorizontal="16dp"
+            android:paddingVertical="4dp"
+            android:textColor="?colorOnBackground"
+            android:visibility="gone"
+            app:chipBackgroundColor="?colorBackgroundVariant"
+            app:chipCornerRadius="16dp"
+            app:chipStrokeWidth="0dp"
+            app:textEndPadding="12dp"
+            app:textStartPadding="12dp"
+            tools:text="today"
+            tools:visibility="visible" />
+
+    </FrameLayout>
+
+    <androidx.appcompat.widget.LinearLayoutCompat
+        android:id="@+id/attachmentPanel"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginHorizontal="12dp"
+        android:layout_marginBottom="35dp"
+        android:background="@drawable/ic_chat_attachment_panel_background"
+        android:backgroundTint="?colorSurfaceVariant"
+        android:minHeight="105dp"
+        android:orientation="vertical"
+        android:padding="16dp"
+        android:translationY="50dp"
+        android:visibility="gone"
+        app:layout_anchor="@+id/messagePanel"
+        app:layout_anchorGravity="center_vertical|top"
+        tools:translationY="0dp"
+        tools:visibility="gone">
 
         <androidx.appcompat.widget.LinearLayoutCompat
-            android:id="@+id/messagePanel"
+            android:id="@+id/replyMessage"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:layout_gravity="bottom"
-            android:layout_margin="12dp"
-            android:background="@drawable/ic_message_panel_background"
-            android:backgroundTint="?colorSurface"
-            android:clickable="true"
-            android:elevation="3dp"
-            android:focusable="true"
-            android:minHeight="60dp"
-            android:orientation="horizontal">
+            android:orientation="vertical">
 
-            <androidx.appcompat.widget.AppCompatEditText
-                android:id="@+id/message"
-                android:layout_width="wrap_content"
-                android:layout_height="match_parent"
-                android:layout_gravity="center_vertical"
-                android:layout_marginHorizontal="20dp"
-                android:layout_weight="1"
-                android:background="@android:color/transparent"
-                android:hint="@string/message_input_hint"
-                android:singleLine="true" />
+            <androidx.appcompat.widget.LinearLayoutCompat
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:gravity="center_vertical"
+                android:orientation="horizontal">
 
-            <androidx.appcompat.widget.AppCompatImageButton
-                android:id="@+id/attach"
+                <com.google.android.material.textview.MaterialTextView
+                    android:id="@+id/replyMessageTitle"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:ellipsize="end"
+                    android:maxLines="1"
+                    android:textColor="?colorOnBackground"
+                    app:fontFamily="@font/google_sans_regular"
+                    tools:text="Michael Bae" />
+
+                <androidx.appcompat.widget.AppCompatImageButton
+                    android:id="@+id/dismissReply"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:background="?selectableItemBackgroundBorderless"
+                    android:src="@drawable/ic_round_close_20"
+                    android:tint="?colorOnBackground" />
+
+            </androidx.appcompat.widget.LinearLayoutCompat>
+
+            <com.google.android.material.textview.MaterialTextView
+                android:id="@+id/replyMessageText"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
-                android:layout_marginTop="18dp"
-                android:layout_marginEnd="18dp"
-                android:background="?selectableItemBackgroundBorderless"
-                android:src="@drawable/ic_baseline_attach_file_24"
-                android:tint="?colorSecondary3" />
-
-            <androidx.appcompat.widget.AppCompatImageButton
-                android:id="@+id/action"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_marginTop="18dp"
-                android:layout_marginEnd="20dp"
-                android:background="?selectableItemBackgroundBorderless"
-                android:src="@drawable/ic_round_mic_24"
-                android:tint="?colorSecondary3" />
+                android:ellipsize="end"
+                android:maxLines="1"
+                android:textColor="?colorOnBackground"
+                android:textSize="16sp"
+                app:fontFamily="@font/roboto_regular"
+                tools:text="Short Message." />
 
         </androidx.appcompat.widget.LinearLayoutCompat>
 
-        <ProgressBar
-            android:id="@+id/progressBar"
+    </androidx.appcompat.widget.LinearLayoutCompat>
+
+    <FrameLayout
+        android:layout_width="match_parent"
+        android:layout_height="50dp"
+        android:layout_gravity="bottom"
+        android:background="@drawable/ic_message_panel_gradient"
+        android:backgroundTint="?colorBackground" />
+
+    <androidx.appcompat.widget.LinearLayoutCompat
+        android:id="@+id/messagePanel"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_gravity="bottom"
+        android:layout_margin="12dp"
+        android:background="@drawable/ic_message_panel_background"
+        android:backgroundTint="@color/colorSurface"
+        android:clickable="true"
+        android:elevation="3dp"
+        android:focusable="true"
+        android:minHeight="60dp"
+        android:orientation="horizontal">
+
+        <androidx.appcompat.widget.AppCompatEditText
+            android:id="@+id/message"
+            android:layout_width="wrap_content"
+            android:layout_height="match_parent"
+            android:layout_gravity="center_vertical"
+            android:layout_marginHorizontal="20dp"
+            android:layout_weight="1"
+            android:background="@android:color/transparent"
+            android:gravity="center_vertical"
+            android:hint="@string/message_input_hint"
+            android:maxLines="3"
+            android:textColor="?colorOnBackground"
+            android:textColorHint="@color/colorOnBackground50" />
+
+        <androidx.appcompat.widget.AppCompatImageButton
+            android:id="@+id/attach"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_gravity="center"
-            android:visibility="gone"
-            tools:visibility="visible" />
+            android:layout_marginTop="18dp"
+            android:layout_marginEnd="18dp"
+            android:background="?selectableItemBackgroundBorderless"
+            android:src="@drawable/ic_baseline_attach_file_24"
+            android:tint="?colorPrimary" />
 
-    </androidx.coordinatorlayout.widget.CoordinatorLayout>
+        <androidx.appcompat.widget.AppCompatImageButton
+            android:id="@+id/action"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="18dp"
+            android:layout_marginEnd="20dp"
+            android:background="?selectableItemBackgroundBorderless"
+            android:src="@drawable/ic_round_mic_24"
+            android:tint="?colorPrimary" />
 
-</layout>
+    </androidx.appcompat.widget.LinearLayoutCompat>
+
+    <ProgressBar
+        android:id="@+id/progressBar"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:visibility="gone"
+        tools:visibility="visible" />
+</androidx.coordinatorlayout.widget.CoordinatorLayout>

app/src/main/res/layout/item_conversation.xml

@@ -1,255 +1,253 @@
 <?xml version="1.0" encoding="utf-8"?>
-<layout xmlns:android="http://schemas.android.com/apk/res/android"
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools">
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_marginVertical="4dp"
+    android:orientation="horizontal">
 
-    <FrameLayout
+    <androidx.appcompat.widget.LinearLayoutCompat
+        android:id="@+id/container"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_marginVertical="4dp"
-        android:orientation="horizontal">
+        android:layout_marginStart="20dp"
+        android:backgroundTint="?colorBackgroundVariant"
+        android:orientation="horizontal"
+        android:paddingVertical="8dp"
+        android:paddingStart="8dp"
+        android:paddingEnd="32dp"
+        tools:background="@drawable/ic_message_unread">
 
-        <androidx.appcompat.widget.LinearLayoutCompat
-            android:id="@+id/container"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_marginStart="20dp"
-            android:backgroundTint="@color/n1_100"
-            android:orientation="horizontal"
-            android:paddingVertical="8dp"
-            android:paddingStart="8dp"
-            android:paddingEnd="32dp"
-            tools:background="@drawable/ic_message_unread">
+        <FrameLayout
+            android:layout_width="56dp"
+            android:layout_height="56dp">
+
+            <com.meloda.fast.widget.CircleImageView
+                android:id="@+id/avatar"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                tools:src="@tools:sample/avatars" />
 
             <FrameLayout
-                android:layout_width="56dp"
-                android:layout_height="56dp">
+                android:id="@+id/avatarPlaceholder"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent">
 
-                <com.meloda.fast.widget.CircleImageView
-                    android:id="@+id/avatar"
+                <androidx.appcompat.widget.AppCompatImageView
+                    android:id="@+id/placeholderBack"
                     android:layout_width="match_parent"
                     android:layout_height="match_parent"
-                    tools:src="@tools:sample/avatars" />
+                    android:layout_margin="1dp"
+                    tools:src="@color/colorOnUserAvatarAction" />
 
-                <FrameLayout
-                    android:id="@+id/avatarPlaceholder"
+                <androidx.appcompat.widget.AppCompatImageView
+                    android:id="@+id/placeholder"
                     android:layout_width="match_parent"
-                    android:layout_height="match_parent">
-
-                    <com.meloda.fast.widget.CircleImageView
-                        android:id="@+id/placeholderBack"
-                        android:layout_width="match_parent"
-                        android:layout_height="match_parent"
-                        android:src="@color/n1_50" />
-
-                    <com.meloda.fast.widget.CircleImageView
-                        android:id="@+id/placeholder"
-                        android:layout_width="match_parent"
-                        android:layout_height="match_parent"
-                        android:src="@drawable/ic_account_circle_cut"
-                        app:tint="@color/n2_500" />
-
-                </FrameLayout>
-
-                <FrameLayout
-                    android:id="@+id/online"
-                    android:layout_width="20dp"
-                    android:layout_height="20dp"
-                    android:layout_gravity="end|bottom"
-                    android:visibility="gone"
-                    tools:visibility="visible">
-
-                    <com.meloda.fast.widget.CircleImageView
-                        android:layout_width="20dp"
-                        android:layout_height="20dp"
-                        android:layout_gravity="center"
-                        android:src="@color/n1_50" />
-
-                    <com.meloda.fast.widget.CircleImageView
-                        android:layout_width="14dp"
-                        android:layout_height="14dp"
-                        android:layout_gravity="center"
-                        android:src="@drawable/ic_online_pc"
-                        app:tint="?colorSecondary2" />
-
-                </FrameLayout>
-
-                <FrameLayout
-                    android:id="@+id/pin"
-                    android:layout_width="20dp"
-                    android:layout_height="20dp"
-                    android:layout_gravity="start|top"
-                    android:visibility="gone"
-                    tools:visibility="visible">
-
-                    <com.meloda.fast.widget.CircleImageView
-                        android:layout_width="18dp"
-                        android:layout_height="18dp"
-                        android:layout_gravity="center"
-                        android:background="@drawable/ic_back"
-                        android:backgroundTint="@color/n2_500"
-                        android:elevation="0.5dp" />
-
-                    <com.meloda.fast.widget.CircleImageView
-                        android:id="@+id/pinIcon"
-                        android:layout_width="14dp"
-                        android:layout_height="14dp"
-                        android:layout_gravity="center"
-                        android:elevation="1dp"
-                        android:src="@drawable/ic_round_push_pin_24"
-                        app:tint="@color/n2_0" />
-
-                </FrameLayout>
-
-                <FrameLayout
-                    android:id="@+id/service"
-                    android:layout_width="20dp"
-                    android:layout_height="20dp"
-                    android:layout_gravity="end|top"
-                    android:visibility="gone"
-                    tools:visibility="visible">
-
-                    <com.meloda.fast.widget.CircleImageView
-                        android:layout_width="18dp"
-                        android:layout_height="18dp"
-                        android:layout_gravity="center"
-                        android:background="@drawable/ic_back"
-                        android:backgroundTint="@color/n2_500"
-                        android:elevation="0.5dp" />
-
-                    <com.meloda.fast.widget.CircleImageView
-                        android:id="@+id/phantomIcon"
-                        android:layout_width="14dp"
-                        android:layout_height="14dp"
-                        android:layout_gravity="center"
-                        android:elevation="1dp"
-                        android:src="@drawable/ic_phantom"
-                        android:visibility="gone"
-                        app:tint="@color/n2_10"
-                        tools:visibility="visible" />
-
-                    <com.meloda.fast.widget.CircleImageView
-                        android:id="@+id/callIcon"
-                        android:layout_width="14dp"
-                        android:layout_height="14dp"
-                        android:layout_gravity="center"
-                        android:elevation="1dp"
-                        android:src="@drawable/ic_attachment_group_call"
-                        android:visibility="gone"
-                        app:tint="@color/n2_0" />
-
-                </FrameLayout>
+                    android:layout_height="match_parent"
+                    android:src="@drawable/ic_account_circle_cut"
+                    app:tint="@color/colorUserAvatarAction" />
             </FrameLayout>
 
-            <androidx.appcompat.widget.LinearLayoutCompat
+            <FrameLayout
+                android:id="@+id/online"
+                android:layout_width="20dp"
+                android:layout_height="20dp"
+                android:layout_gravity="end|bottom"
+                android:visibility="gone"
+                tools:visibility="visible">
+
+                <com.meloda.fast.widget.CircleImageView
+                    android:id="@+id/online_border"
+                    android:layout_width="20dp"
+                    android:layout_height="20dp"
+                    android:layout_gravity="center"
+                    android:src="?colorBackground" />
+
+                <com.meloda.fast.widget.CircleImageView
+                    android:layout_width="14dp"
+                    android:layout_height="14dp"
+                    android:layout_gravity="center"
+                    android:src="@drawable/ic_online_pc"
+                    android:tint="?colorPrimaryVariant" />
+
+            </FrameLayout>
+
+            <FrameLayout
+                android:id="@+id/pin"
+                android:layout_width="20dp"
+                android:layout_height="20dp"
+                android:layout_gravity="start|top"
+                android:visibility="gone"
+                tools:visibility="visible">
+
+                <com.meloda.fast.widget.CircleImageView
+                    android:layout_width="18dp"
+                    android:layout_height="18dp"
+                    android:layout_gravity="center"
+                    android:background="@drawable/ic_back"
+                    android:backgroundTint="@color/colorUserAvatarAction"
+                    android:elevation="0.5dp" />
+
+                <com.meloda.fast.widget.CircleImageView
+                    android:id="@+id/pinIcon"
+                    android:layout_width="14dp"
+                    android:layout_height="14dp"
+                    android:layout_gravity="center"
+                    android:elevation="1dp"
+                    android:src="@drawable/ic_round_push_pin_24"
+
+                    app:tint="@color/colorOnUserAvatarAction" />
+
+            </FrameLayout>
+
+            <FrameLayout
+                android:id="@+id/service"
+                android:layout_width="20dp"
+                android:layout_height="20dp"
+                android:layout_gravity="end|top"
+                android:visibility="gone"
+                tools:visibility="visible">
+
+                <com.meloda.fast.widget.CircleImageView
+                    android:layout_width="18dp"
+                    android:layout_height="18dp"
+                    android:layout_gravity="center"
+                    android:background="@drawable/ic_back"
+                    android:backgroundTint="@color/colorUserAvatarAction"
+                    android:elevation="0.5dp" />
+
+                <com.meloda.fast.widget.CircleImageView
+                    android:id="@+id/phantomIcon"
+                    android:layout_width="14dp"
+                    android:layout_height="14dp"
+                    android:layout_gravity="center"
+                    android:elevation="1dp"
+                    android:src="@drawable/ic_phantom"
+                    android:visibility="gone"
+                    app:tint="@color/colorOnUserAvatarAction"
+                    tools:visibility="gone" />
+
+                <com.meloda.fast.widget.CircleImageView
+                    android:id="@+id/callIcon"
+                    android:layout_width="14dp"
+                    android:layout_height="14dp"
+                    android:layout_gravity="center"
+                    android:elevation="1dp"
+                    android:src="@drawable/ic_attachment_group_call"
+                    android:visibility="gone"
+                    app:tint="@color/colorOnUserAvatarAction"
+                    tools:visibility="visible" />
+
+            </FrameLayout>
+        </FrameLayout>
+
+        <androidx.appcompat.widget.LinearLayoutCompat
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="24dp"
+            android:orientation="vertical">
+
+            <RelativeLayout
                 android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:layout_marginStart="24dp"
-                android:orientation="vertical">
-
-                <RelativeLayout
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content">
-
-                    <androidx.appcompat.widget.LinearLayoutCompat
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:layout_alignParentStart="true"
-                        android:layout_toStartOf="@+id/date"
-                        android:orientation="horizontal">
-
-                        <com.google.android.material.textview.MaterialTextView
-                            android:id="@+id/title"
-                            android:layout_width="wrap_content"
-                            android:layout_height="wrap_content"
-                            android:layout_weight="1"
-                            android:fontFamily="@font/google_sans_regular"
-                            android:maxLines="2"
-                            android:textColor="?textColorPrimary"
-                            android:textSize="22sp"
-                            tools:text="Title" />
-
-                        <com.google.android.material.textview.MaterialTextView
-                            android:id="@+id/counter"
-                            android:layout_width="wrap_content"
-                            android:layout_height="18dp"
-                            android:layout_marginStart="8dp"
-                            android:layout_marginTop="-4dp"
-                            android:layout_marginEnd="4dp"
-                            android:layout_weight="0"
-                            android:background="@drawable/ic_back"
-                            android:backgroundTint="?colorSecondary3"
-                            android:gravity="center"
-                            android:minWidth="18dp"
-                            android:textColor="?colorOnSecondary3"
-                            android:textSize="10sp"
-                            android:visibility="gone"
-                            tools:text="12"
-                            tools:visibility="visible" />
-
-                    </androidx.appcompat.widget.LinearLayoutCompat>
-
-                    <com.google.android.material.textview.MaterialTextView
-                        android:id="@+id/date"
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:layout_alignParentEnd="true"
-                        android:layout_marginStart="8dp"
-                        android:layout_marginTop="6dp"
-                        android:alpha="0.5"
-                        android:fontFamily="@font/roboto_regular"
-                        android:gravity="end|center_vertical"
-                        android:textColor="?textColorSecondaryVariant"
-                        tools:text="20:00" />
-
-                </RelativeLayout>
-
-                <androidx.appcompat.widget.LinearLayoutCompat
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:orientation="horizontal"
-                    android:visibility="gone">
-
-
-                </androidx.appcompat.widget.LinearLayoutCompat>
+                android:layout_height="wrap_content">
 
                 <androidx.appcompat.widget.LinearLayoutCompat
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
+                    android:layout_alignParentStart="true"
+                    android:layout_toStartOf="@+id/date"
                     android:orientation="horizontal">
 
-                    <androidx.appcompat.widget.AppCompatImageView
-                        android:id="@+id/textAttachment"
-                        android:layout_width="18dp"
-                        android:layout_height="18dp"
-                        android:layout_marginTop="2dp"
-                        android:layout_marginEnd="4dp"
-                        android:src="@drawable/ic_baseline_attach_file_24"
-                        android:visibility="gone"
-                        app:tint="?textColorSecondaryVariant"
-                        tools:visibility="visible" />
-
                     <com.google.android.material.textview.MaterialTextView
-                        android:id="@+id/message"
+                        android:id="@+id/title"
                         android:layout_width="wrap_content"
                         android:layout_height="wrap_content"
-                        android:alpha="0.7"
-                        android:fontFamily="@font/roboto_regular"
+                        android:layout_weight="1"
+                        android:fontFamily="@font/google_sans_regular"
                         android:maxLines="2"
-                        android:textColor="?textColorPrimary"
-                        android:textSize="16sp"
-                        tools:text="Message" />
+                        android:textColor="?colorOnBackground"
+                        android:textSize="20sp"
+                        tools:text="Title" />
+
+                    <com.google.android.material.textview.MaterialTextView
+                        android:id="@+id/counter"
+                        android:layout_width="wrap_content"
+                        android:layout_height="18dp"
+                        android:layout_marginStart="8dp"
+                        android:layout_marginTop="-4dp"
+                        android:layout_marginEnd="4dp"
+                        android:layout_weight="0"
+                        android:background="@drawable/ic_back"
+                        android:backgroundTint="?colorOnBackgroundVariantContainer"
+                        android:gravity="center"
+                        android:minWidth="18dp"
+                        android:paddingHorizontal="2dp"
+                        android:textColor="?colorOnBackgroundVariantOnContainer"
+                        android:textSize="11sp"
+                        android:visibility="gone"
+                        tools:text="12"
+                        tools:visibility="visible" />
+
                 </androidx.appcompat.widget.LinearLayoutCompat>
 
+                <com.google.android.material.textview.MaterialTextView
+                    android:id="@+id/date"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_alignParentEnd="true"
+                    android:layout_marginStart="8dp"
+                    android:layout_marginTop="6dp"
+                    android:alpha="0.5"
+                    android:fontFamily="@font/roboto_regular"
+                    android:gravity="end|center_vertical"
+                    android:textColor="?colorOutline"
+                    tools:text="20:00" />
+
+            </RelativeLayout>
+
+            <androidx.appcompat.widget.LinearLayoutCompat
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal"
+                android:visibility="gone">
+
 
             </androidx.appcompat.widget.LinearLayoutCompat>
 
+            <androidx.appcompat.widget.LinearLayoutCompat
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
+
+                <androidx.appcompat.widget.AppCompatImageView
+                    android:id="@+id/textAttachment"
+                    android:layout_width="18dp"
+                    android:layout_height="18dp"
+                    android:layout_marginTop="2dp"
+                    android:layout_marginEnd="4dp"
+                    android:src="@drawable/ic_baseline_attach_file_24"
+                    android:visibility="gone"
+                    app:tint="?colorOutline"
+                    tools:visibility="visible" />
+
+                <com.google.android.material.textview.MaterialTextView
+                    android:id="@+id/message"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:alpha="0.7"
+                    android:fontFamily="@font/roboto_regular"
+                    android:maxLines="2"
+                    android:textColor="?colorOnBackground"
+                    android:textSize="16sp"
+                    tools:text="Message" />
+            </androidx.appcompat.widget.LinearLayoutCompat>
         </androidx.appcompat.widget.LinearLayoutCompat>
+    </androidx.appcompat.widget.LinearLayoutCompat>
 
-        <FrameLayout
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:background="?selectableItemBackground" />
-    </FrameLayout>
-
-</layout>
+    <FrameLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:background="?selectableItemBackground"
+        tools:visibility="gone" />
+</FrameLayout>

app/src/main/res/layout/item_message_attachment_audio.xml

@@ -1,59 +1,53 @@
 <?xml version="1.0" encoding="utf-8"?>
-<layout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.appcompat.widget.LinearLayoutCompat xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools">
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:orientation="horizontal"
+    android:padding="4dp">
+
+    <FrameLayout
+        android:layout_width="42dp"
+        android:layout_height="42dp"
+        android:layout_gravity="top"
+        android:layout_marginTop="2dp"
+        android:background="@drawable/ic_play_button_circle_background"
+        android:backgroundTint="?colorPrimaryVariant">
+
+        <androidx.appcompat.widget.AppCompatImageView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center"
+            android:src="@drawable/ic_round_play_arrow_24"
+            app:tint="@color/a3_700" />
+
+    </FrameLayout>
 
     <androidx.appcompat.widget.LinearLayoutCompat
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:orientation="horizontal"
-        android:padding="4dp">
+        android:layout_marginStart="8dp"
+        android:orientation="vertical">
 
-        <FrameLayout
-            android:layout_width="42dp"
-            android:layout_height="42dp"
-            android:layout_gravity="top"
-            android:layout_marginTop="2dp"
-            android:background="@drawable/ic_play_button_circle_background"
-            android:backgroundTint="@color/a3_200">
-
-            <androidx.appcompat.widget.AppCompatImageView
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_gravity="center"
-                android:src="@drawable/ic_round_play_arrow_24"
-                app:tint="@color/a3_700" />
-
-        </FrameLayout>
-
-        <androidx.appcompat.widget.LinearLayoutCompat
+        <com.google.android.material.textview.MaterialTextView
+            android:id="@+id/title"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_marginStart="8dp"
-            android:orientation="vertical">
-
-            <com.google.android.material.textview.MaterialTextView
-                android:id="@+id/title"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:ellipsize="end"
-                android:fontFamily="@font/google_sans_regular"
-                android:maxLines="1"
-                android:textColor="@color/n1_800"
-                android:textSize="18sp"
-                tools:text="Даня, дай Фаст" />
-
-            <com.google.android.material.textview.MaterialTextView
-                android:id="@+id/artist"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:alpha="0.8"
-                android:fontFamily="@font/roboto_regular"
-                android:textColor="@color/n1_800"
-                tools:text="Эльчин Оруджев | 0:36" />
-
-        </androidx.appcompat.widget.LinearLayoutCompat>
+            android:ellipsize="end"
+            android:fontFamily="@font/google_sans_regular"
+            android:maxLines="1"
+            android:textColor="?colorOnBackground"
+            android:textSize="18sp"
+            tools:text="Даня, дай Фаст" />
 
+        <com.google.android.material.textview.MaterialTextView
+            android:id="@+id/artist"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:alpha="0.8"
+            android:fontFamily="@font/roboto_regular"
+            android:textColor="?colorOnBackground"
+            tools:text="Эльчин Оруджев | 0:36" />
     </androidx.appcompat.widget.LinearLayoutCompat>
-
-</layout>
+</androidx.appcompat.widget.LinearLayoutCompat>

app/src/main/res/layout/item_message_attachment_call.xml

@@ -1,59 +1,54 @@
 <?xml version="1.0" encoding="utf-8"?>
-<layout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.appcompat.widget.LinearLayoutCompat xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools">
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:orientation="horizontal"
+    android:padding="4dp">
+
+    <FrameLayout
+        android:layout_width="42dp"
+        android:layout_height="42dp"
+        android:layout_gravity="top"
+        android:layout_marginTop="2dp"
+        android:background="@drawable/ic_play_button_circle_background"
+        android:backgroundTint="?colorPrimaryVariant">
+
+        <androidx.appcompat.widget.AppCompatImageView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center"
+            android:src="@drawable/ic_attachment_call"
+            app:tint="@color/a3_700" />
+
+    </FrameLayout>
 
     <androidx.appcompat.widget.LinearLayoutCompat
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:orientation="horizontal"
-        android:padding="4dp">
+        android:layout_marginHorizontal="8dp"
+        android:orientation="vertical">
 
-        <FrameLayout
-            android:layout_width="42dp"
-            android:layout_height="42dp"
-            android:layout_gravity="top"
-            android:layout_marginTop="2dp"
-            android:background="@drawable/ic_play_button_circle_background"
-            android:backgroundTint="@color/a3_200">
-
-            <androidx.appcompat.widget.AppCompatImageView
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_gravity="center"
-                android:src="@drawable/ic_attachment_call"
-                app:tint="@color/a3_700" />
-
-        </FrameLayout>
-
-        <androidx.appcompat.widget.LinearLayoutCompat
+        <com.google.android.material.textview.MaterialTextView
+            android:id="@+id/type"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_marginHorizontal="8dp"
-            android:orientation="vertical">
+            android:ellipsize="end"
+            android:fontFamily="@font/google_sans_regular"
+            android:maxLines="1"
+            android:textColor="?colorOnBackground"
+            android:textSize="18sp"
+            tools:text="Исходящий звонок" />
 
-            <com.google.android.material.textview.MaterialTextView
-                android:id="@+id/type"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:ellipsize="end"
-                android:fontFamily="@font/google_sans_regular"
-                android:maxLines="1"
-                android:textColor="@color/n1_800"
-                android:textSize="18sp"
-                tools:text="Исходящий звонок" />
-
-            <com.google.android.material.textview.MaterialTextView
-                android:id="@+id/state"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:alpha="0.8"
-                android:fontFamily="@font/roboto_regular"
-                android:textColor="@color/n1_800"
-                tools:text="Отменён" />
-
-        </androidx.appcompat.widget.LinearLayoutCompat>
+        <com.google.android.material.textview.MaterialTextView
+            android:id="@+id/state"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:alpha="0.8"
+            android:fontFamily="@font/roboto_regular"
+            android:textColor="?colorOnBackground"
+            tools:text="Отменён" />
 
     </androidx.appcompat.widget.LinearLayoutCompat>
-
-</layout>
+</androidx.appcompat.widget.LinearLayoutCompat>

app/src/main/res/layout/item_message_attachment_file.xml

@@ -1,59 +1,53 @@
 <?xml version="1.0" encoding="utf-8"?>
-<layout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.appcompat.widget.LinearLayoutCompat xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools">
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:orientation="horizontal"
+    android:padding="4dp">
+
+    <FrameLayout
+        android:layout_width="42dp"
+        android:layout_height="42dp"
+        android:layout_gravity="top"
+        android:layout_marginTop="2dp"
+        android:background="@drawable/ic_play_button_circle_background"
+        android:backgroundTint="?colorPrimaryVariant">
+
+        <androidx.appcompat.widget.AppCompatImageView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center"
+            android:src="@drawable/ic_attachment_file"
+            app:tint="@color/a3_700" />
+
+    </FrameLayout>
 
     <androidx.appcompat.widget.LinearLayoutCompat
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:orientation="horizontal"
-        android:padding="4dp">
+        android:layout_marginStart="8dp"
+        android:orientation="vertical">
 
-        <FrameLayout
-            android:layout_width="42dp"
-            android:layout_height="42dp"
-            android:layout_gravity="top"
-            android:layout_marginTop="2dp"
-            android:background="@drawable/ic_play_button_circle_background"
-            android:backgroundTint="@color/a3_200">
-
-            <androidx.appcompat.widget.AppCompatImageView
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_gravity="center"
-                android:src="@drawable/ic_attachment_file"
-                app:tint="@color/a3_700" />
-
-        </FrameLayout>
-
-        <androidx.appcompat.widget.LinearLayoutCompat
+        <com.google.android.material.textview.MaterialTextView
+            android:id="@+id/title"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_marginStart="8dp"
-            android:orientation="vertical">
-
-            <com.google.android.material.textview.MaterialTextView
-                android:id="@+id/title"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:ellipsize="end"
-                android:fontFamily="@font/google_sans_regular"
-                android:maxLines="1"
-                android:textColor="@color/n1_800"
-                android:textSize="18sp"
-                tools:text="Kids" />
-
-            <com.google.android.material.textview.MaterialTextView
-                android:id="@+id/size"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:alpha="0.8"
-                android:fontFamily="@font/roboto_regular"
-                android:textColor="@color/n1_800"
-                tools:text="3.28 TB" />
-
-        </androidx.appcompat.widget.LinearLayoutCompat>
+            android:ellipsize="end"
+            android:fontFamily="@font/google_sans_regular"
+            android:maxLines="1"
+            android:textColor="?colorOnBackground"
+            android:textSize="18sp"
+            tools:text="Kids" />
 
+        <com.google.android.material.textview.MaterialTextView
+            android:id="@+id/size"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:alpha="0.8"
+            android:fontFamily="@font/roboto_regular"
+            android:textColor="?colorOnBackground"
+            tools:text="3.28 TB" />
     </androidx.appcompat.widget.LinearLayoutCompat>
-
-</layout>
+</androidx.appcompat.widget.LinearLayoutCompat>

app/src/main/res/layout/item_message_attachment_gift.xml

@@ -1,16 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
-<layout xmlns:android="http://schemas.android.com/apk/res/android">
+<androidx.appcompat.widget.LinearLayoutCompat xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:orientation="vertical">
 
-    <androidx.appcompat.widget.LinearLayoutCompat
+    <com.google.android.material.imageview.ShapeableImageView
+        android:id="@+id/image"
         android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:orientation="vertical">
-
-        <com.google.android.material.imageview.ShapeableImageView
-            android:id="@+id/image"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content" />
-
-    </androidx.appcompat.widget.LinearLayoutCompat>
-
-</layout>
+        android:layout_height="wrap_content" />
+</androidx.appcompat.widget.LinearLayoutCompat>

app/src/main/res/layout/item_message_attachment_graffiti.xml

@@ -1,16 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
-<layout xmlns:android="http://schemas.android.com/apk/res/android">
+<androidx.appcompat.widget.LinearLayoutCompat xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:orientation="vertical">
 
-    <androidx.appcompat.widget.LinearLayoutCompat
+    <com.google.android.material.imageview.ShapeableImageView
+        android:id="@+id/image"
         android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:orientation="vertical">
-
-        <com.google.android.material.imageview.ShapeableImageView
-            android:id="@+id/image"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content" />
-
-    </androidx.appcompat.widget.LinearLayoutCompat>
-
-</layout>
+        android:layout_height="wrap_content" />
+</androidx.appcompat.widget.LinearLayoutCompat>

app/src/main/res/layout/item_message_attachment_link.xml

@@ -1,65 +1,60 @@
 <?xml version="1.0" encoding="utf-8"?>
-<layout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.appcompat.widget.LinearLayoutCompat xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools">
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:orientation="horizontal"
+    android:padding="6dp">
+
+    <FrameLayout
+        android:layout_width="48dp"
+        android:layout_height="48dp">
+
+        <com.meloda.fast.widget.CircleImageView
+            android:id="@+id/preview"
+            android:layout_width="48dp"
+            android:layout_height="48dp"
+            android:layout_gravity="center"
+            tools:src="?colorPrimaryVariant" />
+
+        <androidx.appcompat.widget.AppCompatImageView
+            android:id="@+id/linkIcon"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center"
+            android:src="@drawable/ic_round_link_24"
+            app:tint="@color/a3_700" />
+
+    </FrameLayout>
 
     <androidx.appcompat.widget.LinearLayoutCompat
         android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:orientation="horizontal"
-        android:padding="6dp">
+        android:layout_height="match_parent"
+        android:layout_marginHorizontal="8dp"
+        android:gravity="center_vertical"
+        android:orientation="vertical">
 
-        <FrameLayout
-            android:layout_width="48dp"
-            android:layout_height="48dp">
-
-            <com.meloda.fast.widget.CircleImageView
-                android:id="@+id/preview"
-                android:layout_width="48dp"
-                android:layout_height="48dp"
-                android:layout_gravity="center"
-                tools:src="@color/a3_200" />
-
-            <androidx.appcompat.widget.AppCompatImageView
-                android:id="@+id/linkIcon"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_gravity="center"
-                android:src="@drawable/ic_round_link_24"
-                app:tint="@color/a3_700" />
-
-        </FrameLayout>
-
-        <androidx.appcompat.widget.LinearLayoutCompat
+        <com.google.android.material.textview.MaterialTextView
+            android:id="@+id/title"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_marginHorizontal="8dp"
-            android:orientation="vertical">
-
-            <com.google.android.material.textview.MaterialTextView
-                android:id="@+id/title"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:ellipsize="end"
-                android:maxLines="1"
-                android:textColor="?textColorPrimary"
-                android:textSize="18sp"
-                app:fontFamily="@font/google_sans_regular"
-                tools:text="melod1n" />
-
-            <com.google.android.material.textview.MaterialTextView
-                android:id="@+id/caption"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:alpha="0.8"
-                android:ellipsize="end"
-                android:maxLines="1"
-                android:textColor="?textColorPrimary"
-                app:fontFamily="@font/roboto_regular"
-                tools:text="vk.com/melod1n" />
-
-        </androidx.appcompat.widget.LinearLayoutCompat>
+            android:ellipsize="end"
+            android:maxLines="1"
+            android:textColor="?colorOnBackground"
+            android:textSize="18sp"
+            app:fontFamily="@font/google_sans_regular"
+            tools:text="melod1n" />
 
+        <com.google.android.material.textview.MaterialTextView
+            android:id="@+id/caption"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:alpha="0.8"
+            android:ellipsize="end"
+            android:maxLines="1"
+            android:textColor="?colorOnBackground"
+            app:fontFamily="@font/roboto_regular"
+            tools:text="vk.com/melod1n" />
     </androidx.appcompat.widget.LinearLayoutCompat>
-
-</layout>
+</androidx.appcompat.widget.LinearLayoutCompat>