Merge pull request #8 from melod1n/code_saving

Code saving

app/build.gradle.kts

@@ -7,9 +7,9 @@ plugins {
     id("com.android.application")
     id("kotlin-android")
     id("kotlin-kapt")
+    id("kotlin-parcelize")
     id("androidx.navigation.safeargs.kotlin")
     id("dagger.hilt.android.plugin")
-    id("kotlin-parcelize")
 }
 
 android {
@@ -38,6 +38,9 @@ android {
         getByName("release") {
             isMinifyEnabled = false
 
+            buildConfigField("String", "vkLogin", login)
+            buildConfigField("String", "vkPassword", password)
+
             proguardFiles(
                 getDefaultProguardFile("proguard-android-optimize.txt"),
                 "proguard-rules.pro"
@@ -68,7 +71,7 @@ android {
 kapt {
     correctErrorTypes = true
 
-    //use this shit if you don't want to have hilt errors
+    //use this shit if you don't want have hilt errors
     javacOptions {
         option("-Adagger.hilt.android.internal.disableAndroidSuperclassValidation=true")
     }
@@ -79,13 +82,19 @@ dependencies {
 
     coreLibraryDesugaring("com.android.tools:desugar_jdk_libs:1.1.5")
 
+    implementation("com.github.massoudss:waveformSeekBar:3.1.0")
+
+    implementation("androidx.core:core-splashscreen:1.0.0-alpha02")
+
     implementation("androidx.work:work-runtime-ktx:2.6.0")
 
     implementation("androidx.datastore:datastore-preferences:1.0.0")
 
-    implementation("androidx.appcompat:appcompat:1.4.0-alpha03")
-    implementation("com.google.android.material:material:1.5.0-alpha03")
-    implementation("androidx.core:core-ktx:1.7.0-beta01")
+    implementation("androidx.paging:paging-runtime-ktx:3.0.1")
+
+    implementation("androidx.appcompat:appcompat:1.4.0-beta01")
+    implementation("com.google.android.material:material:1.5.0-alpha04")
+    implementation("androidx.core:core-ktx:1.7.0-beta02")
     implementation("androidx.preference:preference-ktx:1.1.1")
     implementation("androidx.swiperefreshlayout:swiperefreshlayout:1.2.0-alpha01")
     implementation("androidx.recyclerview:recyclerview:1.2.1")
@@ -93,7 +102,7 @@ dependencies {
     implementation("androidx.fragment:fragment-ktx:1.3.6")
 
     implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.5.2")
-    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-android:1.5.2-native-mt")
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-android:1.5.2")
 
     implementation("androidx.room:room-ktx:2.3.0")
     implementation("androidx.room:room-runtime:2.3.0")
@@ -113,16 +122,16 @@ dependencies {
     implementation("com.squareup.retrofit2:retrofit:2.9.0")
     implementation("com.squareup.retrofit2:converter-gson:2.9.0")
 
-    implementation("com.google.dagger:hilt-android:2.38.1")
-    kapt("com.google.dagger:hilt-android-compiler:2.38.1")
+    implementation("com.google.dagger:hilt-android:2.39.1")
+    kapt("com.google.dagger:hilt-android-compiler:2.39.1")
     implementation("androidx.hilt:hilt-navigation-fragment:1.0.0")
 
     implementation("com.github.yogacp:android-viewbinding:1.0.3")
 
-    implementation("io.coil-kt:coil:1.3.2")
+    implementation("io.coil-kt:coil:1.4.0")
 
     implementation("com.google.code.gson:gson:2.8.8")
-    implementation("org.jsoup:jsoup:1.14.2")
+    implementation("org.jsoup:jsoup:1.14.3")
     implementation("ch.acra:acra:4.11.1")
 
 }

app/src/main/AndroidManifest.xml

@@ -9,6 +9,7 @@
     <application
         android:name=".common.AppGlobal"
         android:allowBackup="false"
+        android:extractNativeLibs="false"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"

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

@@ -1,8 +1,17 @@
 package com.meloda.fast.activity
 
+import android.os.Bundle
+import androidx.core.splashscreen.SplashScreen.Companion.installSplashScreen
 import com.meloda.fast.R
 import com.meloda.fast.base.BaseActivity
 import dagger.hilt.android.AndroidEntryPoint
 
 @AndroidEntryPoint
-class MainActivity : BaseActivity(R.layout.activity_main)
+class MainActivity : BaseActivity(R.layout.activity_main) {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        installSplashScreen()
+        super.onCreate(savedInstanceState)
+    }
+
+}

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

@@ -0,0 +1,7 @@
+package com.meloda.fast.api
+
+object ApiExtensions {
+
+    val Boolean.intString get() = (if (this) 1 else 0).toString()
+
+}

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

@@ -6,6 +6,7 @@ import com.meloda.fast.common.AppGlobal
 
 object UserConfig {
 
+    private const val FAST_TOKEN = "fast_token"
     private const val TOKEN = "token"
     private const val USER_ID = "user_id"
 
@@ -25,8 +26,16 @@ object UserConfig {
             AppGlobal.preferences.edit().putString(TOKEN, value).apply()
         }
 
+    var fastToken: String = ""
+        get() = AppGlobal.preferences.getString(FAST_TOKEN, "") ?: ""
+        set(value) {
+            field = value
+            AppGlobal.preferences.edit().putString(FAST_TOKEN, value).apply()
+        }
+
     fun clear() {
         accessToken = ""
+        fastToken = ""
         userId = -1
     }
 

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

@@ -1,5 +1,7 @@
 package com.meloda.fast.api
 
+import com.meloda.fast.api.model.attachments.*
+
 object VKConstants {
 
     const val GROUP_FIELDS = "description,members_count,counters,status,verified"
@@ -7,6 +9,8 @@ object VKConstants {
     const val USER_FIELDS =
         "photo_50,photo_100,photo_200,status,screen_name,online,online_mobile,last_seen,verified,sex,online_info"
 
+    const val ALL_FIELDS = "$USER_FIELDS,$GROUP_FIELDS"
+
     const val API_VERSION = "5.132"
     const val VK_APP_ID = "2274003"
     const val VK_SECRET = "hHbZxrka2uZ6jB1inYsH"
@@ -33,4 +37,15 @@ object VKConstants {
             const val PASSWORD = "password"
         }
     }
+
+    val restrictedToEditAttachments = listOf(
+        VkCall::class.java,
+        VkCurator::class.java,
+        VkEvent::class.java,
+        VkGift::class.java,
+        VkGraffiti::class.java,
+        VkGroupCall::class.java,
+        VkStory::class.java,
+        VkVoiceMessage::class.java
+    )
 }

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

@@ -8,11 +8,9 @@ open class VKException(
     var code: Int = -1,
     var description: String = "",
     var error: String
-) :
-    IOException(description) {
+) : IOException(description) {
 
-    var captcha: Pair<String, String>? = null
-    var validationSid: String? = null
+    // TODO: 10-Oct-21 remove this
     var json: JSONObject? = null
 
     override fun toString(): String {

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

@@ -7,6 +7,7 @@ import android.text.SpannableString
 import android.text.style.StyleSpan
 import androidx.core.content.ContextCompat
 import com.meloda.fast.R
+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
@@ -16,6 +17,88 @@ import com.meloda.fast.api.model.base.attachments.BaseVkAttachmentItem
 
 object VkUtils {
 
+    fun <T> attachmentToString(
+        attachmentClass: Class<T>,
+        id: Int,
+        ownerId: Int,
+        withAccessKey: Boolean,
+        accessKey: String?
+    ): String {
+        val type = when (attachmentClass) {
+            VkAudio::class.java -> "audio"
+            VkFile::class.java -> "doc"
+            VkVideo::class.java -> "video"
+            VkPhoto::class.java -> "photo"
+            else -> throw IllegalArgumentException("unknown attachment class: $attachmentClass")
+        }
+
+        val result = StringBuilder(type).append(ownerId).append('_').append(id)
+        if (withAccessKey && !accessKey.isNullOrBlank()) {
+            result.append('_')
+            result.append(accessKey)
+        }
+        return result.toString()
+    }
+
+
+    fun getMessageUser(message: VkMessage, profiles: Map<Int, VkUser>): VkUser? {
+        return (if (!message.isUser()) null
+        else profiles[message.fromId]).also { message.user.value = it }
+    }
+
+    fun getMessageGroup(message: VkMessage, groups: Map<Int, VkGroup>): VkGroup? {
+        return (if (!message.isGroup()) null
+        else groups[message.fromId]).also { message.group.value = it }
+    }
+
+    fun getMessageAvatar(
+        message: VkMessage,
+        messageUser: VkUser?,
+        messageGroup: VkGroup?
+    ): String? {
+        return when {
+            message.isUser() -> messageUser?.photo200
+            message.isGroup() -> messageGroup?.photo200
+            else -> null
+        }
+    }
+
+    fun getMessageTitle(
+        message: VkMessage,
+        messageUser: VkUser?,
+        messageGroup: VkGroup?
+    ): String? {
+        return when {
+            message.isUser() -> messageUser?.fullName
+            message.isGroup() -> messageGroup?.name
+            else -> null
+        }
+    }
+
+    fun getConversationUser(conversation: VkConversation, profiles: Map<Int, VkUser>): VkUser? {
+        return (if (!conversation.isUser()) null
+        else profiles[conversation.id]).also { conversation.user.value = it }
+    }
+
+    fun getConversationGroup(conversation: VkConversation, groups: Map<Int, VkGroup>): VkGroup? {
+        return (if (!conversation.isGroup()) null
+        else groups[conversation.id]).also { conversation.group.value = it }
+    }
+
+    fun getConversationAvatar(
+        conversation: VkConversation,
+        conversationUser: VkUser?,
+        conversationGroup: VkGroup?
+    ): String? {
+        return when {
+            conversation.ownerId == VKConstants.FAST_GROUP_ID -> null
+            conversation.isUser() -> conversationUser?.photo200
+            conversation.isGroup() -> conversationGroup?.photo200
+            conversation.isChat() -> conversation.photo200
+            else -> null
+        }
+    }
+
     fun prepareMessageText(text: String, forConversations: Boolean? = null): String {
         return text.apply {
             if (forConversations == true) replace("\n", "")
@@ -42,6 +125,12 @@ object VkUtils {
         return forwards
     }
 
+    fun parseReplyMessage(baseReplyMessage: BaseVkMessage?): VkMessage? {
+        if (baseReplyMessage == null) return null
+
+        return baseReplyMessage.asVkMessage()
+    }
+
     fun parseAttachments(baseAttachments: List<BaseVkAttachmentItem>?): List<VkAttachment>? {
         if (baseAttachments.isNullOrEmpty()) return null
 
@@ -77,9 +166,7 @@ object VkUtils {
                 }
                 BaseVkAttachmentItem.AttachmentType.VOICE -> {
                     val voiceMessage = baseAttachment.voiceMessage ?: continue
-                    attachments += VkVoiceMessage(
-                        link = voiceMessage.link_mp3
-                    )
+                    attachments += voiceMessage.asVkVoiceMessage()
                 }
                 BaseVkAttachmentItem.AttachmentType.STICKER -> {
                     val sticker = baseAttachment.sticker ?: continue
@@ -87,9 +174,7 @@ object VkUtils {
                 }
                 BaseVkAttachmentItem.AttachmentType.GIFT -> {
                     val gift = baseAttachment.gift ?: continue
-                    attachments += VkGift(
-                        link = gift.thumb_48
-                    )
+                    attachments += gift.asVkGift()
                 }
                 BaseVkAttachmentItem.AttachmentType.WALL -> {
                     val wall = baseAttachment.wall ?: continue
@@ -97,9 +182,7 @@ object VkUtils {
                 }
                 BaseVkAttachmentItem.AttachmentType.GRAFFITI -> {
                     val graffiti = baseAttachment.graffiti ?: continue
-                    attachments += VkGraffiti(
-                        link = graffiti.url
-                    )
+                    attachments += graffiti.asVkGraffiti()
                 }
                 BaseVkAttachmentItem.AttachmentType.POLL -> {
                     val poll = baseAttachment.poll ?: continue
@@ -115,9 +198,7 @@ object VkUtils {
                 }
                 BaseVkAttachmentItem.AttachmentType.CALL -> {
                     val call = baseAttachment.call ?: continue
-                    attachments += VkCall(
-                        initiatorId = call.initiator_id
-                    )
+                    attachments += call.asVkCall()
                 }
                 BaseVkAttachmentItem.AttachmentType.GROUP_CALL_IN_PROGRESS -> {
                     val groupCall = baseAttachment.groupCall ?: continue

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

@@ -1,38 +1,50 @@
 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 kotlinx.parcelize.IgnoredOnParcel
 import kotlinx.parcelize.Parcelize
 
 @Entity(tableName = "conversations")
 @Parcelize
 data class VkConversation(
     @PrimaryKey(autoGenerate = false)
-    val id: Int,
-    val ownerId: Int?,
-    val title: String?,
-    val photo200: String?,
-    val type: String,
-    val callInProgress: Boolean,
-    val isPhantom: Boolean,
-    val lastConversationMessageId: Int,
-    val inRead: Int,
-    val outRead: Int,
-    val isMarkedUnread: Boolean,
-    val lastMessageId: Int,
-    val unreadCount: Int?,
-    val membersCount: Int?,
-    val isPinned: Boolean,
+    var id: Int,
+    var ownerId: Int?,
+    var title: String?,
+    var photo200: String?,
+    var type: String,
+    var callInProgress: Boolean,
+    var isPhantom: Boolean,
+    var lastConversationMessageId: Int,
+    var inRead: Int,
+    var outRead: Int,
+    var isMarkedUnread: Boolean,
+    var lastMessageId: Int,
+    var unreadCount: Int?,
+    var membersCount: Int?,
+    var isPinned: Boolean,
+    var canChangePin: Boolean,
 
     @Embedded(prefix = "pinnedMessage_")
     var pinnedMessage: VkMessage? = null,
 
     @Embedded(prefix = "lastMessage_")
-    var lastMessage: VkMessage? = null
+    var lastMessage: VkMessage? = null,
 ) : Parcelable {
 
+    @Ignore
+    @IgnoredOnParcel
+    val user = MutableLiveData<VkUser?>()
+
+    @Ignore
+    @IgnoredOnParcel
+    val group = MutableLiveData<VkGroup?>()
+
     fun isChat() = type == "chat"
     fun isUser() = type == "user"
     fun isGroup() = type == "group"

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

@@ -1,17 +1,23 @@
 package com.meloda.fast.api.model
 
-import android.os.Parcelable
+import androidx.lifecycle.MutableLiveData
 import androidx.room.Entity
+import androidx.room.Ignore
 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.util.TimeUtils
+import kotlinx.parcelize.IgnoredOnParcel
 import kotlinx.parcelize.Parcelize
 
 @Entity(tableName = "messages")
 @Parcelize
 data class VkMessage(
     @PrimaryKey(autoGenerate = false)
-    val id: Int,
-    val text: String? = null,
+    var id: Int,
+    var text: String? = null,
     val isOut: Boolean,
     val peerId: Int,
     val fromId: Int,
@@ -23,10 +29,22 @@ data class VkMessage(
     val actionConversationMessageId: Int? = null,
     val actionMessage: String? = null,
     val geoType: String? = null,
-    val important: Boolean = false,
+    var important: Boolean = false,
+
     var forwards: List<VkMessage>? = null,
-    var attachments: List<VkAttachment>? = null
-) : Parcelable {
+    var attachments: List<VkAttachment>? = null,
+
+//    @Embedded(prefix = "replyMessage_")
+    var replyMessage: VkMessage? = null
+) : SelectableItem() {
+
+    @Ignore
+    @IgnoredOnParcel
+    val user = MutableLiveData<VkUser?>()
+
+    @Ignore
+    @IgnoredOnParcel
+    val group = MutableLiveData<VkGroup?>()
 
     fun isPeerChat() = peerId > 2_000_000_000
 
@@ -43,40 +61,12 @@ data class VkMessage(
         return Action.parse(action)
     }
 
-    fun copyMessage(
-        id: Int = this.id,
-        text: String? = this.text,
-        isOut: Boolean = this.isOut,
-        peerId: Int = this.peerId,
-        fromId: Int = this.fromId,
-        date: Int = this.date,
-        randomId: Int = this.randomId,
-        action: String? = this.action,
-        actionMemberId: Int? = this.actionMemberId,
-        actionText: String? = this.actionText,
-        actionConversationMessageId: Int? = this.actionConversationMessageId,
-        actionMessage: String? = this.actionMessage,
-        geoType: String? = this.geoType,
-        important: Boolean = this.important
-    ) = VkMessage(
-        id = id,
-        text = text,
-        isOut = isOut,
-        peerId = peerId,
-        fromId = fromId,
-        date = date,
-        randomId = randomId,
-        action = action,
-        actionMemberId = actionMemberId,
-        actionText = actionText,
-        actionConversationMessageId = actionConversationMessageId,
-        actionMessage = actionMessage,
-        geoType = geoType,
-        important = important
-    ).also {
-        it.attachments = attachments
-        it.forwards = forwards
-    }
+    fun canEdit() =
+        fromId == UserConfig.userId &&
+                (attachments == null || !VKConstants.restrictedToEditAttachments.contains(
+                    attachments!![0].javaClass
+                )) &&
+                (System.currentTimeMillis() / 1000 - date.toLong() < TimeUtils.ONE_DAY_IN_SECONDS)
 
     enum class Action(val value: String) {
         CHAT_CREATE("chat_create"),

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

@@ -4,4 +4,8 @@ import android.os.Parcelable
 import kotlinx.parcelize.Parcelize
 
 @Parcelize
-open class VkAttachment : Parcelable
+open class VkAttachment : Parcelable {
+
+    open fun asString(withAccessKey: Boolean = true) = ""
+
+}

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

@@ -1,17 +1,28 @@
 package com.meloda.fast.api.model.attachments
 
+import com.meloda.fast.api.VkUtils
 import kotlinx.parcelize.IgnoredOnParcel
 import kotlinx.parcelize.Parcelize
 
 @Parcelize
 data class VkAudio(
     val id: Int,
+    val ownerId: Int,
     val title: String,
     val artist: String,
     val url: String,
-    val duration: Int
+    val duration: Int,
+    val accessKey: String?
 ) : VkAttachment() {
 
     @IgnoredOnParcel
     val className: String = this::class.java.name
+
+    override fun asString(withAccessKey: Boolean) = VkUtils.attachmentToString(
+        attachmentClass = this::class.java,
+        id = id,
+        ownerId = ownerId,
+        withAccessKey = withAccessKey,
+        accessKey = accessKey
+    )
 }

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

@@ -5,7 +5,12 @@ import kotlinx.parcelize.Parcelize
 
 @Parcelize
 data class VkCall(
-    val initiatorId: Int
+    val initiatorId: Int,
+    val receiverId: Int,
+    val state: String,
+    val time: Int,
+    val duration: Int,
+    val isVideo: Boolean
 ) : VkAttachment() {
 
     @IgnoredOnParcel

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

@@ -1,17 +1,28 @@
 package com.meloda.fast.api.model.attachments
 
+import com.meloda.fast.api.VkUtils
 import kotlinx.parcelize.IgnoredOnParcel
 import kotlinx.parcelize.Parcelize
 
 @Parcelize
 data class VkFile(
     val id: Int,
+    val ownerId: Int,
     val title: String,
     val ext: String,
     val size: Int,
-    val url: String
+    val url: String,
+    val accessKey: String?
 ) : VkAttachment() {
 
     @IgnoredOnParcel
     val className: String = this::class.java.name
+
+    override fun asString(withAccessKey: Boolean) = VkUtils.attachmentToString(
+        attachmentClass = this::class.java,
+        id = id,
+        ownerId = ownerId,
+        withAccessKey = withAccessKey,
+        accessKey = accessKey
+    )
 }

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

@@ -5,7 +5,10 @@ import kotlinx.parcelize.Parcelize
 
 @Parcelize
 data class VkGift(
-    val link: String
+    val id: Int,
+    val thumb256: String?,
+    val thumb96: String?,
+    val thumb48: String
 ) : VkAttachment() {
 
     @IgnoredOnParcel

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

@@ -5,7 +5,12 @@ import kotlinx.parcelize.Parcelize
 
 @Parcelize
 data class VkGraffiti(
-    val link: String
+    val id: Int,
+    val ownerId: Int,
+    val url: String,
+    val width: Int,
+    val height: Int,
+    val accessKey: String
 ) : VkAttachment() {
 
     @IgnoredOnParcel

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

@@ -9,7 +9,7 @@ data class VkLink(
     val title: String?,
     val caption: String?,
     val photo: VkPhoto?,
-    val target: String,
+    val target: String?,
     val isFavorite: Boolean
 ) : VkAttachment() {
 

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

@@ -1,8 +1,11 @@
 package com.meloda.fast.api.model.attachments
 
+import androidx.room.Ignore
+import com.meloda.fast.api.VkUtils
 import com.meloda.fast.api.model.base.attachments.BaseVkPhoto
 import kotlinx.parcelize.IgnoredOnParcel
 import kotlinx.parcelize.Parcelize
+import java.util.*
 
 @Parcelize
 data class VkPhoto(
@@ -13,17 +16,70 @@ data class VkPhoto(
     val hasTags: Boolean,
     val accessKey: String?,
     val sizes: List<BaseVkPhoto.Size>,
-    val text: String,
+    val text: String?,
     val userId: Int?
 ) : VkAttachment() {
 
+    @Ignore
+    @IgnoredOnParcel
+    private val sizesChars = Stack<Char>()
+
+    init {
+        sizesChars.push('s')
+        sizesChars.push('m')
+        sizesChars.push('x')
+        sizesChars.push('o')
+        sizesChars.push('p')
+        sizesChars.push('q')
+        sizesChars.push('r')
+        sizesChars.push('y')
+        sizesChars.push('z')
+        sizesChars.push('w')
+    }
+
     @IgnoredOnParcel
     val className: String = this::class.java.name
 
-    fun sizeOfType(type: Char): BaseVkPhoto.Size? {
+    override fun asString(withAccessKey: Boolean) = VkUtils.attachmentToString(
+        attachmentClass = this::class.java,
+        id = id,
+        ownerId = ownerId,
+        withAccessKey = withAccessKey,
+        accessKey = accessKey
+    )
+
+    fun getMaxSize(): BaseVkPhoto.Size? {
+        return getSizeOrSmaller(sizesChars.peek())
+    }
+
+    fun getSizeOrNull(type: Char): BaseVkPhoto.Size? {
         for (size in sizes) {
-            if (size.type == type.toString())
+            if (size.type == type.toString()) return size
+        }
+
+        return null
+    }
+
+    fun getSizeOrSmaller(type: Char): BaseVkPhoto.Size? {
+        val photoStack = sizesChars.clone() as Stack<Char>
+
+        val sizeIndex = photoStack.search(type)
+
+        if (sizeIndex == -1) return null
+
+        for (i in 0 until sizeIndex) {
+            photoStack.pop()
+        }
+
+        for (i in 0 until photoStack.size) {
+            val size = getSizeOrNull(photoStack.peek())
+
+            if (size == null) {
+                photoStack.pop()
+                continue
+            } else {
                 return size
+            }
         }
 
         return null

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

@@ -1,5 +1,6 @@
 package com.meloda.fast.api.model.attachments
 
+import com.meloda.fast.api.VkUtils
 import com.meloda.fast.api.model.base.attachments.BaseVkVideo
 import kotlinx.parcelize.IgnoredOnParcel
 import kotlinx.parcelize.Parcelize
@@ -7,8 +8,10 @@ import kotlinx.parcelize.Parcelize
 @Parcelize
 data class VkVideo(
     val id: Int,
+    val ownerId: Int,
     val images: List<BaseVkVideo.Image>,
-    val firstFrames: List<BaseVkVideo.FirstFrame>?
+    val firstFrames: List<BaseVkVideo.FirstFrame>?,
+    val accessKey: String?
 ) : VkAttachment() {
 
     @IgnoredOnParcel
@@ -18,4 +21,12 @@ data class VkVideo(
         return images.find { it.width == width }
     }
 
+    override fun asString(withAccessKey: Boolean) = VkUtils.attachmentToString(
+        attachmentClass = this::class.java,
+        id = id,
+        ownerId = ownerId,
+        withAccessKey = withAccessKey,
+        accessKey = accessKey
+    )
+
 }

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

@@ -5,9 +5,18 @@ import kotlinx.parcelize.Parcelize
 
 @Parcelize
 data class VkVoiceMessage(
-    val link: String
+    val id: Int,
+    val ownerId: Int,
+    val duration: Int,
+    val waveform: List<Int>,
+    val linkOgg: String,
+    val linkMp3: String,
+    val accessKey: String,
+    val transcriptState: String,
+    val transcript: String
 ) : VkAttachment() {
 
     @IgnoredOnParcel
     val className: String = this::class.java.name
+
 }

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

@@ -40,7 +40,8 @@ data class BaseVkConversation(
         unreadCount = unread_count,
         membersCount = chat_settings?.members_count,
         ownerId = chat_settings?.owner_id,
-        isPinned = sort_id.major_id > 0
+        isPinned = sort_id.major_id > 0,
+        canChangePin = chat_settings?.acl?.can_change_pin == true
     ).apply {
         this.lastMessage = lastMessage
         this.pinnedMessage = chat_settings?.pinned_message?.asVkMessage()

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

@@ -23,7 +23,8 @@ data class BaseVkMessage(
     val payload: String,
     val geo: Geo?,
     val action: Action?,
-    val ttl: Int
+    val ttl: Int,
+    val reply_message: BaseVkMessage?
 ) : Parcelable {
 
     fun asVkMessage() = VkMessage(
@@ -44,6 +45,7 @@ data class BaseVkMessage(
     ).also {
         it.attachments = VkUtils.parseAttachments(attachments)
         it.forwards = VkUtils.parseForwards(fwd_messages)
+        it.replyMessage = VkUtils.parseReplyMessage(reply_message)
     }
 
     @Parcelize

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

@@ -13,7 +13,7 @@ data class BaseVkAudio(
     val url: String,
     val date: Int,
     val owner_id: Int,
-    val access_key: String,
+    val access_key: String?,
     val is_explicit: Boolean,
     val is_focus_track: Boolean,
     val is_licensed: Boolean,
@@ -27,10 +27,12 @@ data class BaseVkAudio(
 
     fun asVkAudio() = VkAudio(
         id = id,
+        ownerId = owner_id,
         title = title,
         artist = artist,
         url = url,
-        duration = duration
+        duration = duration,
+        accessKey = access_key
     )
 
     @Parcelize

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

@@ -1,6 +1,7 @@
 package com.meloda.fast.api.model.base.attachments
 
 import android.os.Parcelable
+import com.meloda.fast.api.model.attachments.VkCall
 import kotlinx.parcelize.Parcelize
 
 @Parcelize
@@ -11,4 +12,15 @@ data class BaseVkCall(
     val time: Int,
     val duration: Int,
     val video: Boolean
-) : Parcelable
+) : Parcelable {
+
+    fun asVkCall() = VkCall(
+        initiatorId = initiator_id,
+        receiverId = receiver_id,
+        state = state,
+        time = time,
+        duration = duration,
+        isVideo = video
+    )
+
+}

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

@@ -16,16 +16,18 @@ data class BaseVkFile(
     val url: String,
     val preview: Preview?,
     val ic_licensed: Int,
-    val access_key: String,
+    val access_key: String?,
     val web_preview_url: String?
 ) : BaseVkAttachment() {
 
     fun asVkFile() = VkFile(
         id = id,
+        ownerId = owner_id,
         title = title,
         ext = ext,
         url = url,
-        size = size
+        size = size,
+        accessKey = access_key
     )
 
     @Parcelize

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

@@ -1,6 +1,7 @@
 package com.meloda.fast.api.model.base.attachments
 
 import android.os.Parcelable
+import com.meloda.fast.api.model.attachments.VkGift
 import kotlinx.parcelize.Parcelize
 
 @Parcelize
@@ -9,4 +10,13 @@ data class BaseVkGift(
     val thumb_256: String?,
     val thumb_96: String?,
     val thumb_48: String
-) : Parcelable
+) : Parcelable {
+
+    fun asVkGift() = VkGift(
+        id = id,
+        thumb256 = thumb_256,
+        thumb96 = thumb_96,
+        thumb48 = thumb_48
+    )
+
+}

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

@@ -1,6 +1,7 @@
 package com.meloda.fast.api.model.base.attachments
 
 import android.os.Parcelable
+import com.meloda.fast.api.model.attachments.VkGraffiti
 import kotlinx.parcelize.Parcelize
 
 @Parcelize
@@ -11,4 +12,15 @@ data class BaseVkGraffiti(
     val width: Int,
     val height: Int,
     val access_key: String
-) : Parcelable
+) : Parcelable {
+
+    fun asVkGraffiti() = VkGraffiti(
+        id = id,
+        ownerId = owner_id,
+        url = url,
+        width = width,
+        height = height,
+        accessKey = access_key
+    )
+
+}

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

@@ -9,7 +9,7 @@ data class BaseVkLink(
     val title: String?,
     val caption: String?,
     val photo: BaseVkPhoto?,
-    val target: String,
+    val target: String?,
     val is_favorite: Boolean
 ) : BaseVkAttachment() {
 

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

@@ -13,7 +13,7 @@ data class BaseVkPhoto(
     val has_tags: Boolean,
     val access_key: String?,
     val sizes: List<Size>,
-    val text: String,
+    val text: String?,
     val user_id: Int?,
     val lat: Double?,
     val long: Double?,

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

@@ -26,7 +26,7 @@ data class BaseVkVideo(
     val can_add_to_faves: Int,
     val can_add: Int,
     val can_attach_link: Int,
-    val access_key: String,
+    val access_key: String?,
     val owner_id: Int,
     val ov_id: String,
     val is_favorite: Boolean,
@@ -40,8 +40,10 @@ data class BaseVkVideo(
 
     fun asVkVideo() = VkVideo(
         id = id,
+        ownerId = owner_id,
         images = image,
-        firstFrames = first_frame
+        firstFrames = first_frame,
+        accessKey = access_key
     )
 
     @Parcelize

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

@@ -1,6 +1,7 @@
 package com.meloda.fast.api.model.base.attachments
 
 import android.os.Parcelable
+import com.meloda.fast.api.model.attachments.VkVoiceMessage
 import kotlinx.parcelize.Parcelize
 
 @Parcelize
@@ -14,4 +15,18 @@ data class BaseVkVoiceMessage(
     val access_key: String,
     val transcript_state: String,
     val transcript: String
-) : Parcelable
+) : Parcelable {
+
+    fun asVkVoiceMessage() = VkVoiceMessage(
+        id = id,
+        ownerId = owner_id,
+        duration = duration,
+        waveform = waveform,
+        linkOgg = link_ogg,
+        linkMp3 = link_mp3,
+        accessKey = access_key,
+        transcriptState = transcript_state,
+        transcript = transcript
+    )
+
+}

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

@@ -1,84 +0,0 @@
-package com.meloda.fast.api.model.request
-
-import android.os.Parcelable
-import kotlinx.parcelize.Parcelize
-
-@Parcelize
-data class MessagesGetHistoryRequest(
-    val count: Int? = null,
-    val offset: Int? = null,
-    val peerId: Int,
-    val extended: Boolean? = null,
-    val startMessageId: Int? = null,
-    val rev: Boolean? = null,
-    val fields: String? = null,
-) : Parcelable {
-
-    val map
-        get() = mutableMapOf(
-            "peer_id" to peerId.toString()
-        ).apply {
-            count?.let { this["count"] = it.toString() }
-            offset?.let { this["offset"] = it.toString() }
-            extended?.let { this["extended"] = (if (it) 1 else 0).toString() }
-            startMessageId?.let { this["start_message_id"] = it.toString() }
-            rev?.let { this["rev"] = (if (it) 1 else 0).toString() }
-            fields?.let { this["fields"] = it }
-        }
-
-}
-
-@Parcelize
-data class MessagesSendRequest(
-    val peerId: Int,
-    val randomId: Int = 0,
-    val message: String? = null,
-    val lat: Int? = null,
-    val lon: Int? = null,
-    val replyTo: Int? = null,
-    val stickerId: Int? = null,
-    val disableMentions: Boolean? = null,
-    val dontParseLinks: Boolean? = null
-) : Parcelable {
-
-    val map
-        get() = mutableMapOf(
-            "peer_id" to peerId.toString(),
-            "random_id" to randomId.toString()
-        ).apply {
-            message?.let { this["message"] = it }
-            lat?.let { this["lat"] = it.toString() }
-            lon?.let { this["lon"] = it.toString() }
-            replyTo?.let { this["reply_to"] = it.toString() }
-            stickerId?.let { this["sticker_id"] = it.toString() }
-            disableMentions?.let { this["disable_mentions"] = (if (it) 1 else 0).toString() }
-            dontParseLinks?.let { this["dont_parse_links"] = (if (it) 1 else 0).toString() }
-        }
-}
-
-@Parcelize
-data class MessagesMarkAsImportantRequest(
-    val messagesIds: List<Int>,
-    val important: Boolean
-) : Parcelable {
-
-    val map
-        get() = mutableMapOf(
-            "message_ids" to messagesIds.joinToString { it.toString() },
-            "important" to (if (important) 1 else 0).toString()
-        )
-
-}
-
-@Parcelize
-data class MessagesGetLongPollServerRequest(
-    val needPts: Boolean,
-    val version: Int
-) : Parcelable {
-
-    val map
-        get() = mutableMapOf(
-            "need_pts" to (if (needPts) 1 else 0).toString(),
-            "version" to version.toString()
-        )
-}

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

@@ -1,2 +0,0 @@
-package com.meloda.fast.api.model.response
-

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

@@ -17,6 +17,7 @@ class AuthInterceptor : Interceptor {
                 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/ResultCallFactory.kt

@@ -1,6 +1,7 @@
 package com.meloda.fast.api.network
 
 import com.meloda.fast.api.VKException
+import com.meloda.fast.api.base.ApiError
 import com.meloda.fast.api.base.ApiResponse
 import okhttp3.Request
 import okio.IOException
@@ -93,7 +94,6 @@ internal class ResultCall<T>(proxy: Call<T>) : CallDelegate<T, Answer<T>>(proxy)
 
             if (result is Answer.Error && isVkException) if (checkErrors(call, result)) return
 
-
             callback.onResponse(proxy, Response.success(result))
         }
 
@@ -105,6 +105,11 @@ internal class ResultCall<T>(proxy: Call<T>) : CallDelegate<T, Answer<T>>(proxy)
         }
 
         private fun checkErrors(call: Call<T>, result: Answer.Error): Boolean {
+            if (result.throwable is ApiError) {
+                onFailure(call, result.throwable)
+                return true
+            }
+
             val json = JSONObject(result.throwable.message ?: "{}")
 
             return if (json.has("error")) {

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

@@ -1,6 +1,6 @@
 package com.meloda.fast.api.network
 
-object VKUrls {
+object VkUrls {
 
     const val OAUTH = "https://oauth.vk.com"
     const val API = "https://api.vk.com/method"
@@ -12,6 +12,10 @@ object VKUrls {
 
     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 {
@@ -24,6 +28,10 @@ object VKUrls {
         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/auth/AuthDataSource.kt

@@ -1,7 +1,5 @@
-package com.meloda.fast.api.network.datasource
+package com.meloda.fast.api.network.auth
 
-import com.meloda.fast.api.network.repo.AuthRepo
-import com.meloda.fast.api.model.request.RequestAuthDirect
 import javax.inject.Inject
 
 class AuthDataSource @Inject constructor(

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

@@ -0,0 +1,17 @@
+package com.meloda.fast.api.network.auth
+
+import com.meloda.fast.api.network.Answer
+import com.meloda.fast.api.network.VkUrls
+import retrofit2.http.GET
+import retrofit2.http.Query
+import retrofit2.http.QueryMap
+
+interface AuthRepo {
+
+    @GET(VkUrls.Auth.DirectAuth)
+    suspend fun auth(@QueryMap param: Map<String, String?>): Answer<ResponseAuthDirect>
+
+    @GET(VkUrls.Auth.SendSms)
+    suspend fun sendSms(@Query("sid") validationSid: String): Answer<ResponseSendSms>
+
+}

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

@@ -1,4 +1,4 @@
-package com.meloda.fast.api.model.request
+package com.meloda.fast.api.network.auth
 
 import android.os.Parcelable
 import com.google.gson.annotations.SerializedName

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

@@ -1,4 +1,4 @@
-package com.meloda.fast.api.model.response
+package com.meloda.fast.api.network.auth
 
 import android.os.Parcelable
 import com.google.gson.annotations.SerializedName

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

@@ -0,0 +1,22 @@
+package com.meloda.fast.api.network.conversations
+
+import com.meloda.fast.api.model.VkConversation
+import com.meloda.fast.database.dao.ConversationsDao
+import javax.inject.Inject
+
+class ConversationsDataSource @Inject constructor(
+    private val repo: ConversationsRepo,
+    private val dao: ConversationsDao
+) {
+
+    suspend fun get(params: ConversationsGetRequest) = repo.get(params.map)
+
+    suspend fun delete(params: ConversationsDeleteRequest) = repo.delete(params.map)
+
+    suspend fun pin(params: ConversationsPinRequest) = repo.pin(params.map)
+
+    suspend fun unpin(params: ConversationsUnpinRequest) = repo.unpin(params.map)
+
+    suspend fun store(conversations: List<VkConversation>) = dao.insert(conversations)
+
+}

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

@@ -0,0 +1,32 @@
+package com.meloda.fast.api.network.conversations
+
+import com.meloda.fast.api.base.ApiResponse
+import com.meloda.fast.api.network.Answer
+import com.meloda.fast.api.network.VkUrls
+import retrofit2.http.FieldMap
+import retrofit2.http.FormUrlEncoded
+import retrofit2.http.POST
+
+interface ConversationsRepo {
+
+    @FormUrlEncoded
+    @POST(VkUrls.Conversations.Get)
+    suspend fun get(@FieldMap params: Map<String, String>): Answer<ApiResponse<ConversationsGetResponse>>
+
+    @FormUrlEncoded
+    @POST(VkUrls.Conversations.Delete)
+    suspend fun delete(@FieldMap params: Map<String, String>): Answer<ApiResponse<Any>>
+
+    @FormUrlEncoded
+    @POST(VkUrls.Conversations.Pin)
+    suspend fun pin(@FieldMap params: Map<String, String>): Answer<ApiResponse<Any>>
+
+    @FormUrlEncoded
+    @POST(VkUrls.Conversations.Unpin)
+    suspend fun unpin(@FieldMap params: Map<String, String>): Answer<ApiResponse<Any>>
+
+    @FormUrlEncoded
+    @POST(VkUrls.Conversations.ReorderPinned)
+    suspend fun reorderPinned(@FieldMap params: Map<String, String>): Answer<ApiResponse<Any>>
+
+}

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

@@ -1,4 +1,4 @@
-package com.meloda.fast.api.model.request
+package com.meloda.fast.api.network.conversations
 
 import android.os.Parcelable
 import kotlinx.parcelize.Parcelize
@@ -24,3 +24,18 @@ data class ConversationsGetRequest(
             startMessageId?.let { this["start_message_id"] = it.toString() }
         }
 }
+
+@Parcelize
+data class ConversationsDeleteRequest(val peerId: Int) : Parcelable {
+    val map get() = mapOf("peer_id" to peerId.toString())
+}
+
+@Parcelize
+data class ConversationsPinRequest(val peerId: Int) : Parcelable {
+    val map get() = mapOf("peer_id" to peerId.toString())
+}
+
+@Parcelize
+data class ConversationsUnpinRequest(val peerId: Int) : Parcelable {
+    val map get() = mapOf("peer_id" to peerId.toString())
+}

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

@@ -1,4 +1,4 @@
-package com.meloda.fast.api.model.response
+package com.meloda.fast.api.network.conversations
 
 import android.os.Parcelable
 import com.google.gson.annotations.SerializedName

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

@@ -1,18 +0,0 @@
-package com.meloda.fast.api.network.datasource
-
-import com.meloda.fast.api.model.VkConversation
-import com.meloda.fast.api.network.repo.ConversationsRepo
-import com.meloda.fast.api.model.request.ConversationsGetRequest
-import com.meloda.fast.database.dao.ConversationsDao
-import javax.inject.Inject
-
-class ConversationsDataSource @Inject constructor(
-    private val repo: ConversationsRepo,
-    private val dao: ConversationsDao
-) {
-
-    suspend fun getAllChats(params: ConversationsGetRequest) = repo.getAllChats(params.map)
-
-    suspend fun storeConversations(conversations: List<VkConversation>) = dao.insert(conversations)
-
-}

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

@@ -1,4 +1,4 @@
-package com.meloda.fast.api.network.repo
+package com.meloda.fast.api.network.longpoll
 
 import com.meloda.fast.api.base.ApiResponse
 import com.meloda.fast.api.network.Answer

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

@@ -1,11 +1,6 @@
-package com.meloda.fast.api.network.datasource
+package com.meloda.fast.api.network.messages
 
 import com.meloda.fast.api.model.VkMessage
-import com.meloda.fast.api.model.request.MessagesGetHistoryRequest
-import com.meloda.fast.api.model.request.MessagesGetLongPollServerRequest
-import com.meloda.fast.api.model.request.MessagesMarkAsImportantRequest
-import com.meloda.fast.api.model.request.MessagesSendRequest
-import com.meloda.fast.api.network.repo.MessagesRepo
 import com.meloda.fast.database.dao.MessagesDao
 import javax.inject.Inject
 
@@ -26,8 +21,20 @@ class MessagesDataSource @Inject constructor(
     suspend fun getLongPollServer(params: MessagesGetLongPollServerRequest) =
         repo.getLongPollServer(params.map)
 
-    suspend fun storeMessages(messages: List<VkMessage>) = dao.insert(messages)
+    suspend fun pin(params: MessagesPinMessageRequest) =
+        repo.pin(params.map)
 
-    suspend fun getCachedMessages(peerId: Int) = dao.getByPeerId(peerId)
+    suspend fun unpin(params: MessagesUnPinMessageRequest) =
+        repo.unpin(params.map)
+
+    suspend fun delete(params: MessagesDeleteRequest) =
+        repo.delete(params.map)
+
+    suspend fun edit(params: MessagesEditRequest) =
+        repo.edit(params.map)
+
+    suspend fun store(messages: List<VkMessage>) = dao.insert(messages)
+
+    suspend fun getCached(peerId: Int) = dao.getByPeerId(peerId)
 
 }

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

@@ -0,0 +1,46 @@
+package com.meloda.fast.api.network.messages
+
+import com.meloda.fast.api.base.ApiResponse
+import com.meloda.fast.api.model.base.BaseVkLongPoll
+import com.meloda.fast.api.model.base.BaseVkMessage
+import com.meloda.fast.api.network.Answer
+import com.meloda.fast.api.network.VkUrls
+import retrofit2.http.FieldMap
+import retrofit2.http.FormUrlEncoded
+import retrofit2.http.POST
+
+interface MessagesRepo {
+
+    @FormUrlEncoded
+    @POST(VkUrls.Messages.GetHistory)
+    suspend fun getHistory(@FieldMap params: Map<String, String>): Answer<ApiResponse<MessagesGetHistoryResponse>>
+
+    @FormUrlEncoded
+    @POST(VkUrls.Messages.Send)
+    suspend fun send(@FieldMap params: Map<String, String>): Answer<ApiResponse<Int>>
+
+    @FormUrlEncoded
+    @POST(VkUrls.Messages.MarkAsImportant)
+    suspend fun markAsImportant(@FieldMap params: Map<String, String>): Answer<ApiResponse<List<Int>>>
+
+    @FormUrlEncoded
+    @POST(VkUrls.Messages.GetLongPollServer)
+    suspend fun getLongPollServer(@FieldMap params: Map<String, String>): Answer<ApiResponse<BaseVkLongPoll>>
+
+    @FormUrlEncoded
+    @POST(VkUrls.Messages.Pin)
+    suspend fun pin(@FieldMap params: Map<String, String>): Answer<ApiResponse<BaseVkMessage>>
+
+    @FormUrlEncoded
+    @POST(VkUrls.Messages.Unpin)
+    suspend fun unpin(@FieldMap params: Map<String, String>): Answer<ApiResponse<Any>>
+
+    @FormUrlEncoded
+    @POST(VkUrls.Messages.Delete)
+    suspend fun delete(@FieldMap params: Map<String, String>): Answer<ApiResponse<Any>>
+
+    @FormUrlEncoded
+    @POST(VkUrls.Messages.Edit)
+    suspend fun edit(@FieldMap params: Map<String, String>): Answer<ApiResponse<Any>>
+
+}

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

@@ -0,0 +1,168 @@
+package com.meloda.fast.api.network.messages
+
+import android.os.Parcelable
+import com.meloda.fast.api.ApiExtensions.intString
+import com.meloda.fast.api.model.attachments.VkAttachment
+import kotlinx.parcelize.Parcelize
+
+@Parcelize
+data class MessagesGetHistoryRequest(
+    val count: Int? = null,
+    val offset: Int? = null,
+    val peerId: Int,
+    val extended: Boolean? = null,
+    val startMessageId: Int? = null,
+    val rev: Boolean? = null,
+    val fields: String? = null,
+) : Parcelable {
+
+    val map
+        get() = mutableMapOf(
+            "peer_id" to peerId.toString()
+        ).apply {
+            count?.let { this["count"] = it.toString() }
+            offset?.let { this["offset"] = it.toString() }
+            extended?.let { this["extended"] = it.intString }
+            startMessageId?.let { this["start_message_id"] = it.toString() }
+            rev?.let { this["rev"] = it.intString }
+            fields?.let { this["fields"] = it }
+        }
+
+}
+
+@Parcelize
+data class MessagesSendRequest(
+    val peerId: Int,
+    val randomId: Int = 0,
+    val message: String? = null,
+    val lat: Int? = null,
+    val lon: Int? = null,
+    val replyTo: Int? = null,
+    val stickerId: Int? = null,
+    val disableMentions: Boolean? = null,
+    val dontParseLinks: Boolean? = null
+) : Parcelable {
+
+    val map
+        get() = mutableMapOf(
+            "peer_id" to peerId.toString(),
+            "random_id" to randomId.toString()
+        ).apply {
+            message?.let { this["message"] = it }
+            lat?.let { this["lat"] = it.toString() }
+            lon?.let { this["lon"] = it.toString() }
+            replyTo?.let { this["reply_to"] = it.toString() }
+            stickerId?.let { this["sticker_id"] = it.toString() }
+            disableMentions?.let { this["disable_mentions"] = it.intString }
+            dontParseLinks?.let { this["dont_parse_links"] = it.intString }
+        }
+}
+
+@Parcelize
+data class MessagesMarkAsImportantRequest(
+    val messagesIds: List<Int>,
+    val important: Boolean
+) : Parcelable {
+
+    val map
+        get() = mutableMapOf(
+            "message_ids" to messagesIds.joinToString { it.toString() },
+            "important" to important.intString
+        )
+
+}
+
+@Parcelize
+data class MessagesGetLongPollServerRequest(
+    val needPts: Boolean,
+    val version: Int
+) : Parcelable {
+
+    val map
+        get() = mutableMapOf(
+            "need_pts" to needPts.intString,
+            "version" to version.toString()
+        )
+}
+
+
+@Parcelize
+data class MessagesPinMessageRequest(
+    val peerId: Int,
+    val messageId: Int? = null,
+    val conversationMessageId: Int? = null
+) : Parcelable {
+
+    val map
+        get() = mutableMapOf(
+            "peer_id" to peerId.toString()
+        ).apply {
+            messageId?.let { this["message_id"] = it.toString() }
+            conversationMessageId?.let { this["conversation_message_id"] = it.toString() }
+        }
+
+}
+
+@Parcelize
+data class MessagesUnPinMessageRequest(val peerId: Int) : Parcelable {
+    val map get() = mutableMapOf("peer_id" to peerId.toString())
+}
+
+@Parcelize
+data class MessagesDeleteRequest(
+    val peerId: Int,
+    val messagesIds: List<Int>? = null,
+    val conversationsMessagesIds: List<Int>? = null,
+    val isSpam: Boolean? = null,
+    val deleteForAll: Boolean? = null
+) : Parcelable {
+
+    val map
+        get() = mutableMapOf(
+            "peer_id" to peerId.toString()
+        ).apply {
+            isSpam?.let { this["spam"] = it.intString }
+            deleteForAll?.let { this["delete_for_all"] = it.intString }
+            messagesIds?.let {
+                this["message_ids"] = it.joinToString { id -> id.toString() }
+            }
+
+            conversationsMessagesIds?.let {
+                this["conversation_message_ids"] = it.joinToString { id -> id.toString() }
+            }
+        }
+}
+
+@Parcelize
+data class MessagesEditRequest(
+    val peerId: Int,
+    val messageId: Int,
+    val message: String? = null,
+    val lat: Float? = null,
+    val lon: Float? = null,
+    val attachments: List<VkAttachment>? = null,
+    val notParseLinks: Boolean = false,
+    val keepSnippets: Boolean = true,
+    val keepForwardedMessages: Boolean = true
+) : Parcelable {
+
+    val map
+        get() = mutableMapOf(
+            "peer_id" to peerId.toString(),
+            "message_id" to messageId.toString(),
+            "dont_parse_links" to notParseLinks.intString,
+            "keep_snippets" to keepSnippets.intString,
+            "keep_forward_messages" to keepForwardedMessages.intString
+        ).apply {
+            message?.let { this["message"] = it }
+            lat?.let { this["lat"] = it.toString() }
+            lon?.let { this["lon"] = it.toString() }
+            attachments?.let {
+                val attachments =
+                    if (it.isEmpty()) ""
+                    else it.joinToString(separator = ",") { attachment -> attachment.asString() }
+                this["attachment"] = attachments
+            }
+        }
+
+}

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

@@ -1,4 +1,4 @@
-package com.meloda.fast.api.model.response
+package com.meloda.fast.api.network.messages
 
 import android.os.Parcelable
 import com.meloda.fast.api.model.base.BaseVkConversation

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

@@ -1,17 +0,0 @@
-package com.meloda.fast.api.network.repo
-
-import com.meloda.fast.api.network.VKUrls
-import com.meloda.fast.api.model.response.ResponseAuthDirect
-import com.meloda.fast.api.network.Answer
-import com.meloda.fast.api.model.response.ResponseSendSms
-import retrofit2.http.*
-
-interface AuthRepo {
-
-    @GET(VKUrls.Auth.DirectAuth)
-    suspend fun auth(@QueryMap param: Map<String, String?>): Answer<ResponseAuthDirect>
-
-    @GET(VKUrls.Auth.SendSms)
-    suspend fun sendSms(@Query("sid") validationSid: String): Answer<ResponseSendSms>
-
-}

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

@@ -1,17 +0,0 @@
-package com.meloda.fast.api.network.repo
-
-import com.meloda.fast.api.base.ApiResponse
-import com.meloda.fast.api.network.Answer
-import com.meloda.fast.api.network.VKUrls
-import com.meloda.fast.api.model.response.ConversationsGetResponse
-import retrofit2.http.FieldMap
-import retrofit2.http.FormUrlEncoded
-import retrofit2.http.POST
-
-interface ConversationsRepo {
-
-    @FormUrlEncoded
-    @POST(VKUrls.Conversations.Get)
-    suspend fun getAllChats(@FieldMap params: Map<String, String>): Answer<ApiResponse<ConversationsGetResponse>>
-
-}

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

@@ -1,30 +0,0 @@
-package com.meloda.fast.api.network.repo
-
-import com.meloda.fast.api.base.ApiResponse
-import com.meloda.fast.api.model.base.BaseVkLongPoll
-import com.meloda.fast.api.model.response.MessagesGetHistoryResponse
-import com.meloda.fast.api.network.Answer
-import com.meloda.fast.api.network.VKUrls
-import retrofit2.http.FieldMap
-import retrofit2.http.FormUrlEncoded
-import retrofit2.http.POST
-
-interface MessagesRepo {
-
-    @FormUrlEncoded
-    @POST(VKUrls.Messages.GetHistory)
-    suspend fun getHistory(@FieldMap params: Map<String, String>): Answer<ApiResponse<MessagesGetHistoryResponse>>
-
-    @FormUrlEncoded
-    @POST(VKUrls.Messages.Send)
-    suspend fun send(@FieldMap params: Map<String, String>): Answer<ApiResponse<Int>>
-
-    @FormUrlEncoded
-    @POST(VKUrls.Messages.MarkAsImportant)
-    suspend fun markAsImportant(@FieldMap params: Map<String, String>): Answer<ApiResponse<List<Int>>>
-
-    @FormUrlEncoded
-    @POST(VKUrls.Messages.GetLongPollServer)
-    suspend fun getLongPollServer(@FieldMap params: Map<String, String>): Answer<ApiResponse<BaseVkLongPoll>>
-
-}

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

@@ -1,8 +1,6 @@
-package com.meloda.fast.api.network.datasource
+package com.meloda.fast.api.network.users
 
 import com.meloda.fast.api.model.VkUser
-import com.meloda.fast.api.network.repo.UsersRepo
-import com.meloda.fast.api.model.request.UsersGetRequest
 import com.meloda.fast.database.dao.UsersDao
 import javax.inject.Inject
 

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

@@ -1,9 +1,9 @@
-package com.meloda.fast.api.network.repo
+package com.meloda.fast.api.network.users
 
 import com.meloda.fast.api.base.ApiResponse
 import com.meloda.fast.api.model.base.BaseVkUser
 import com.meloda.fast.api.network.Answer
-import com.meloda.fast.api.network.VKUrls
+import com.meloda.fast.api.network.VkUrls
 import retrofit2.http.FieldMap
 import retrofit2.http.FormUrlEncoded
 import retrofit2.http.POST
@@ -11,7 +11,7 @@ import retrofit2.http.POST
 interface UsersRepo {
 
     @FormUrlEncoded
-    @POST(VKUrls.Users.GetById)
+    @POST(VkUrls.Users.GetById)
     suspend fun getById(
         @FieldMap params: Map<String, String>?
     ): Answer<ApiResponse<List<BaseVkUser>>>

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

@@ -1,4 +1,4 @@
-package com.meloda.fast.api.model.request
+package com.meloda.fast.api.network.users
 
 import android.os.Parcelable
 import kotlinx.parcelize.Parcelize

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

@@ -0,0 +1,2 @@
+package com.meloda.fast.api.network.users
+

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

@@ -1,13 +1,11 @@
 package com.meloda.fast.base
 
 import android.os.Bundle
-import android.view.View
 import androidx.annotation.LayoutRes
 import androidx.appcompat.app.AppCompatActivity
 import androidx.lifecycle.Lifecycle
 import androidx.lifecycle.LifecycleOwner
 import androidx.lifecycle.LifecycleRegistry
-import com.google.android.material.snackbar.Snackbar
 
 abstract class BaseActivity : AppCompatActivity, LifecycleOwner {
 
@@ -39,10 +37,4 @@ abstract class BaseActivity : AppCompatActivity, LifecycleOwner {
         lifecycleRegistry.currentState = Lifecycle.State.DESTROYED
     }
 
-    val rootView: View? get() = findViewById(android.R.id.content)
-
-    fun requireRootView() = rootView!!
-
-    var errorSnackbar: Snackbar? = null
-
 }

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

@@ -11,7 +11,7 @@ import com.meloda.fast.activity.MainActivity
 import com.meloda.fast.api.UserConfig
 import com.meloda.fast.base.viewmodel.BaseViewModel
 import com.meloda.fast.base.viewmodel.IllegalTokenEvent
-import com.meloda.fast.base.viewmodel.VKEvent
+import com.meloda.fast.base.viewmodel.VkEvent
 import kotlinx.coroutines.flow.collect
 import kotlinx.coroutines.flow.onEach
 
@@ -30,7 +30,7 @@ abstract class BaseViewModelFragment<VM : BaseViewModel> : BaseFragment {
         }
     }
 
-    protected open fun onEvent(event: VKEvent) {
+    protected open fun onEvent(event: VkEvent) {
         if (event is IllegalTokenEvent) {
             Toast.makeText(
                 requireContext(), R.string.authorization_failed, Toast.LENGTH_LONG

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

@@ -114,7 +114,7 @@ abstract class BaseAdapter<Item, VH : BaseHolder>(
         holder.bind(position)
     }
 
-    protected fun initListeners(itemView: View, position: Int) {
+    protected open fun initListeners(itemView: View, position: Int) {
         if (itemView is AdapterView<*>) return
 
         itemView.setOnClickListener { itemClickListener.invoke(position) }

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

@@ -0,0 +1,15 @@
+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/BaseViewModel.kt

@@ -15,7 +15,7 @@ abstract class BaseViewModel : ViewModel() {
 
     var unknownErrorDefaultText: String = ""
 
-    protected val tasksEventChannel = Channel<VKEvent>()
+    protected val tasksEventChannel = Channel<VkEvent>()
     val tasksEvent = tasksEventChannel.receiveAsFlow()
 
     protected fun <T> makeJob(
@@ -25,23 +25,35 @@ abstract class BaseViewModel : ViewModel() {
         onEnd: (suspend () -> Unit)? = null,
         onError: (suspend (Throwable) -> Unit)? = null
     ) = viewModelScope.launch {
-        onStart?.invoke()
+        onStart?.invoke() ?: onStart()
         when (val response = job()) {
             is Answer.Success -> onAnswer(response.data)
             is Answer.Error -> {
                 checkErrors(response.throwable)
-                onError?.invoke(response.throwable)
-                    ?: sendEvent(
-                        ErrorEvent(
-                            response.throwable.message
-                                ?: unknownErrorDefaultText
-                        )
-                    )
+                onError?.invoke(response.throwable) ?: onError(response.throwable)
             }
         }
-    }.also { it.invokeOnCompletion { viewModelScope.launch { onEnd?.invoke() } } }
+    }.also {
+        it.invokeOnCompletion {
+            viewModelScope.launch {
+                onEnd?.invoke() ?: onStop()
+            }
+        }
+    }
 
-    protected suspend fun <T : VKEvent> sendEvent(event: T) = tasksEventChannel.send(event)
+    protected suspend fun onStart() {
+        sendEvent(StartProgressEvent)
+    }
+
+    protected suspend fun onStop() {
+        sendEvent(StopProgressEvent)
+    }
+
+    protected suspend fun onError(throwable: Throwable) {
+        sendEvent(ErrorEvent(throwable.message ?: unknownErrorDefaultText))
+    }
+
+    protected suspend fun <T : VkEvent> sendEvent(event: T) = tasksEventChannel.send(event)
 
     private suspend fun checkErrors(throwable: Throwable) {
         when (throwable) {

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

@@ -5,15 +5,15 @@ data class ShowDialogInfoEvent(
     val message: String,
     val positiveBtn: String? = null,
     val negativeBtn: String? = null
-) : VKEvent()
+) : VkEvent()
 
-data class ErrorEvent(val errorText: String) : VKEvent()
+data class ErrorEvent(val errorText: String) : VkEvent()
 
-object IllegalTokenEvent : VKEvent()
-data class CaptchaEvent(val sid: String, val image: String) : VKEvent()
-data class ValidationEvent(val sid: String) : VKEvent()
+object IllegalTokenEvent : VkEvent()
+data class CaptchaEvent(val sid: String, val image: String) : VkEvent()
+data class ValidationEvent(val sid: String) : VkEvent()
 
-object StartProgressEvent : VKEvent()
-object StopProgressEvent : VKEvent()
+object StartProgressEvent : VkEvent()
+object StopProgressEvent : VkEvent()
 
-abstract class VKEvent
+abstract class VkEvent

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

@@ -13,6 +13,7 @@ import kotlinx.coroutines.Job
 object AppSettings {
 
     val keyIsMultilineEnabled = booleanPreferencesKey("isMultilineEnabled")
+
 }
 
 val Context.dataStore: DataStore<Preferences> by preferencesDataStore(

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 = 24,
+    version = 26,
     exportSchema = false,
 )
 @TypeConverters(Converters::class)

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

@@ -4,11 +4,15 @@ import com.google.gson.Gson
 import com.google.gson.GsonBuilder
 import com.meloda.fast.api.network.AuthInterceptor
 import com.meloda.fast.api.network.ResultCallFactory
-import com.meloda.fast.api.network.datasource.AuthDataSource
-import com.meloda.fast.api.network.datasource.ConversationsDataSource
-import com.meloda.fast.api.network.datasource.MessagesDataSource
-import com.meloda.fast.api.network.datasource.UsersDataSource
-import com.meloda.fast.api.network.repo.*
+import com.meloda.fast.api.network.auth.AuthRepo
+import com.meloda.fast.api.network.auth.AuthDataSource
+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.UsersRepo
 import com.meloda.fast.database.dao.ConversationsDao
 import com.meloda.fast.database.dao.MessagesDao
 import com.meloda.fast.database.dao.UsersDao

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

@@ -1,37 +0,0 @@
-package com.meloda.fast.extensions
-
-import android.content.Context
-import android.graphics.Typeface
-import android.graphics.drawable.Drawable
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import androidx.annotation.*
-import androidx.core.content.ContextCompat
-import androidx.core.content.res.ResourcesCompat
-
-object ContextExtensions {
-
-    fun Context.drawable(@DrawableRes resId: Int): Drawable? {
-        return ContextCompat.getDrawable(this, resId)
-    }
-
-    @ColorInt
-    fun Context.color(@ColorRes resId: Int): Int {
-        return ContextCompat.getColor(this, resId)
-    }
-
-    fun Context.font(@FontRes resId: Int): Typeface? {
-        return ResourcesCompat.getFont(this, resId)
-    }
-
-    fun Context.string(@StringRes resId: Int): String {
-        return getString(resId)
-    }
-
-    fun Context.view(resId: Int, root: ViewGroup? = null, attachToRoot: Boolean = false): View {
-        return LayoutInflater.from(this).inflate(resId, root, attachToRoot)
-    }
-
-
-}

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

@@ -1,13 +0,0 @@
-package com.meloda.fast.extensions
-
-import android.graphics.drawable.Drawable
-import androidx.annotation.ColorInt
-
-object DrawableExtensions {
-
-    fun Drawable?.tint(@ColorInt color: Int): Drawable? {
-        this?.setTint(color)
-        return this
-    }
-
-}

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

@@ -1,73 +0,0 @@
-package com.meloda.fast.extensions
-
-import android.graphics.*
-import kotlin.math.min
-
-fun Bitmap.borderedCircularBitmap(
-    borderColor: Int = 0,
-    borderWidth: Int = 0
-): Bitmap? {
-    val bitmap = Bitmap.createBitmap(
-        width, // width in pixels
-        height, // height in pixels
-        Bitmap.Config.ARGB_8888
-    )
-
-    // canvas to draw circular bitmap
-    val canvas = Canvas(bitmap)
-
-    // get the maximum radius
-    val radius = min(width / 2f, height / 2f)
-
-    // create a path to draw circular bitmap border
-    val borderPath = Path().apply {
-        addCircle(
-            width / 2f,
-            height / 2f,
-            radius,
-            Path.Direction.CCW
-        )
-    }
-
-    // draw border on circular bitmap
-    canvas.clipPath(borderPath)
-    canvas.drawColor(borderColor)
-
-
-    // create a path for circular bitmap
-    val bitmapPath = Path().apply {
-        addCircle(
-            width / 2f,
-            height / 2f,
-            radius - borderWidth,
-            Path.Direction.CCW
-        )
-    }
-
-    canvas.clipPath(bitmapPath)
-    val paint = Paint().apply {
-        xfermode = PorterDuffXfermode(PorterDuff.Mode.CLEAR)
-        isAntiAlias = true
-    }
-
-    // clear the circular bitmap drawing area
-    // it will keep bitmap transparency
-    canvas.drawBitmap(this, 0f, 0f, paint)
-
-    // now draw the circular bitmap
-    canvas.drawBitmap(this, 0f, 0f, null)
-
-
-    val diameter = (radius * 2).toInt()
-    val x = (width - diameter) / 2
-    val y = (height - diameter) / 2
-
-    // return cropped circular bitmap with border
-    return Bitmap.createBitmap(
-        bitmap, // source bitmap
-        x, // x coordinate of the first pixel in source
-        y, // y coordinate of the first pixel in source
-        diameter, // width
-        diameter // height
-    )
-}

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

@@ -1,11 +0,0 @@
-package com.meloda.fast.extensions
-
-import kotlin.math.roundToInt
-
-object FloatExtensions {
-
-    fun Float.int(): Int {
-        return roundToInt()
-    }
-
-}

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

@@ -1,116 +0,0 @@
-package com.meloda.fast.extensions
-
-import androidx.annotation.UiThread
-import androidx.lifecycle.MutableLiveData
-
-object LiveDataExtensions {
-
-    operator fun <T> MutableLiveData<MutableList<T>>.set(position: Int, v: T) {
-        val value = (this.value ?: arrayListOf()).apply { this[position] = v }
-        this.value = value
-    }
-
-    operator fun <T> MutableLiveData<MutableList<T>>.get(position: Int): T {
-        return (value as MutableList<T>)[position]
-    }
-
-    @JvmOverloads
-    fun <T> MutableLiveData<MutableList<T>>.add(v: T, position: Int = -1) {
-        val value = (this.value ?: arrayListOf()).apply {
-            if (position == -1) this.add(v) else this.add(position, v)
-        }
-
-        this.value = value
-    }
-
-    @JvmOverloads
-    fun <T> MutableLiveData<MutableList<T>>.addAll(values: List<T>, position: Int = -1) {
-        val value = (this.value ?: arrayListOf()).apply {
-            if (position == -1) this.addAll(values)
-            else this.addAll(position, values)
-        }
-
-        this.value = value
-    }
-
-    @Suppress("TYPE_INFERENCE_ONLY_INPUT_TYPES_WARNING")
-    fun <T> MutableLiveData<MutableList<T>>.removeAll(values: List<T>) {
-        val value = (this.value ?: arrayListOf()).apply {
-            this.removeAll(values)
-        }
-
-        this.value = value
-    }
-
-    fun <T> MutableLiveData<MutableList<T>>.removeAt(index: Int) {
-        val value = (this.value ?: arrayListOf()).apply {
-            this.removeAt(index)
-        }
-
-        this.value = value
-    }
-
-    fun <T> MutableLiveData<MutableList<T>>.remove(item: T) {
-        val value = (this.value ?: arrayListOf()).apply {
-            this.remove(item)
-        }
-
-        this.value = value
-    }
-
-    operator fun <T> MutableLiveData<MutableList<T>>.iterator(): Iterator<T> {
-        return (value as MutableList<T>).iterator()
-    }
-
-    fun <T> MutableLiveData<MutableList<T>>.clear() {
-        value = arrayListOf()
-    }
-
-    val <T> MutableLiveData<MutableList<T>>.indices get() = (value as MutableList<T>).indices
-
-    val <T> MutableLiveData<MutableList<T>>.size get() = (value as MutableList<T>).size
-
-    fun <T> MutableLiveData<MutableList<T>>.isEmpty(): Boolean {
-        return (value as MutableList<T>).isEmpty()
-    }
-
-    fun <T> MutableLiveData<MutableList<T>>.isNotEmpty(): Boolean {
-        return !isEmpty()
-    }
-
-    fun <T> MutableLiveData<MutableList<T>>.requireValue() = value!!
-
-    @UiThread
-    operator fun <T> MutableLiveData<MutableList<T>>.plusAssign(values: List<T>) {
-        val value = (this.value ?: arrayListOf()).apply {
-            this.addAll(values)
-        }
-
-        this.value = value
-    }
-
-    operator fun <T> MutableLiveData<MutableList<T>>.plusAssign(v: T) {
-        val value = (this.value ?: arrayListOf()).apply {
-            this.add(v)
-        }
-
-        this.value = value
-    }
-
-    operator fun <T> MutableLiveData<MutableList<T>>.minusAssign(values: List<T>) {
-        val value = (this.value ?: arrayListOf()).apply {
-            this.removeAll(values)
-        }
-
-        this.value = value
-    }
-
-    operator fun <T> MutableLiveData<MutableList<T>>.minusAssign(v: T) {
-        val value = (this.value ?: arrayListOf()).apply {
-            this.remove(v)
-        }
-
-        this.value = value
-    }
-
-}

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

@@ -1,11 +0,0 @@
-package com.meloda.fast.extensions
-
-import java.util.*
-
-object StringExtensions {
-
-    fun String.lowerCase(): String {
-        return toLowerCase(Locale.getDefault())
-    }
-
-}

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

@@ -1,17 +1,11 @@
 package com.meloda.fast.extensions
 
 import android.widget.TextView
-import com.google.android.material.textfield.TextInputLayout
 
 object TextViewExtensions {
 
     fun TextView.clear() {
-        text = ""
+        text = null
     }
 
-    fun TextInputLayout.clear() {
-        editText?.setText("")
-    }
-
-
 }

app/src/main/kotlin/com/meloda/fast/io/BytesOutputStream.kt

@@ -1,10 +0,0 @@
-package com.meloda.fast.io
-
-import java.io.ByteArrayOutputStream
-
-class BytesOutputStream : ByteArrayOutputStream {
-    constructor() : super(8192)
-    constructor(size: Int) : super(size)
-
-    val byteArray: ByteArray = buf
-}

app/src/main/kotlin/com/meloda/fast/io/Charsets.kt

@@ -1,12 +0,0 @@
-package com.meloda.fast.io
-
-import java.nio.charset.Charset
-import java.nio.charset.StandardCharsets
-
-object Charsets {
-
-    val ASCII: Charset = StandardCharsets.US_ASCII
-
-    val UTF_8: Charset = StandardCharsets.UTF_8
-
-}

app/src/main/kotlin/com/meloda/fast/io/EasyStreams.kt

@@ -1,174 +0,0 @@
-package com.meloda.fast.io
-
-import org.jetbrains.annotations.Contract
-import java.io.*
-import java.nio.charset.Charset
-import java.util.zip.GZIPInputStream
-import java.util.zip.GZIPOutputStream
-import kotlin.math.max
-
-object EasyStreams {
-
-    const val BUFFER_SIZE = 8192
-    const val CHAR_BUFFER_SIZE = 4096
-
-    @JvmOverloads
-    @Throws(IOException::class)
-    fun read(from: InputStream, encoding: Charset? = Charsets.UTF_8): String {
-        return read(InputStreamReader(from, encoding))
-    }
-
-    @JvmStatic
-    @Throws(IOException::class)
-    fun read(from: Reader): String {
-        val builder = StringWriter(CHAR_BUFFER_SIZE)
-        return try {
-            copy(from, builder)
-            builder.toString()
-        } finally {
-            close(from)
-        }
-    }
-
-    @JvmStatic
-    @Throws(IOException::class)
-    fun readBytes(from: InputStream): ByteArray {
-        val output = ByteArrayOutputStream(max(from.available(), BUFFER_SIZE))
-        try {
-            copy(from, output)
-        } finally {
-            close(from)
-        }
-        return output.toByteArray()
-    }
-
-    @Throws(IOException::class)
-    fun write(from: ByteArray?, to: OutputStream) {
-        try {
-            to.write(from)
-            to.flush()
-        } finally {
-            close(to)
-        }
-    }
-
-    @Throws(IOException::class)
-    fun write(from: String?, to: OutputStream?) {
-        write(from, OutputStreamWriter(to, Charsets.UTF_8))
-    }
-
-    @Throws(IOException::class)
-    fun write(from: CharArray?, to: Writer) {
-        try {
-            to.write(from)
-            to.flush()
-        } finally {
-            close(to)
-        }
-    }
-
-    @JvmStatic
-    @Throws(IOException::class)
-    fun write(from: String?, to: Writer) {
-        try {
-            to.write(from)
-            to.flush()
-        } finally {
-            close(to)
-        }
-    }
-
-    @Throws(IOException::class)
-    fun copy(from: Reader, to: Writer): Long {
-        val buffer = CharArray(CHAR_BUFFER_SIZE)
-        var read: Int
-        var total: Long = 0
-        while (from.read(buffer).also { read = it } != -1) {
-            to.write(buffer, 0, read)
-            total += read.toLong()
-        }
-        return total
-    }
-
-    @Throws(IOException::class)
-    fun copy(from: InputStream, to: OutputStream): Long {
-        val buffer = ByteArray(BUFFER_SIZE)
-        var read: Int
-        var total: Long = 0
-        while (from.read(buffer).also { read = it } != -1) {
-            to.write(buffer, 0, read)
-            total += read.toLong()
-        }
-        return total
-    }
-
-    fun buffer(input: InputStream?): BufferedInputStream {
-        return buffer(input, BUFFER_SIZE)
-    }
-
-    @Contract("null, _ -> new")
-    fun buffer(input: InputStream?, size: Int): BufferedInputStream {
-        return if (input is BufferedInputStream) input else BufferedInputStream(input, size)
-    }
-
-    fun buffer(output: OutputStream?): BufferedOutputStream {
-        return buffer(output, BUFFER_SIZE)
-    }
-
-    @Contract("null, _ -> new")
-    fun buffer(output: OutputStream?, size: Int): BufferedOutputStream {
-        return if (output is BufferedOutputStream) output else BufferedOutputStream(output, size)
-    }
-
-    fun buffer(input: Reader?): BufferedReader {
-        return buffer(input, CHAR_BUFFER_SIZE)
-    }
-
-    @Contract("null, _ -> new")
-    fun buffer(input: Reader?, size: Int): BufferedReader {
-        return if (input is BufferedReader) input else BufferedReader(input, size)
-    }
-
-    fun buffer(output: Writer?): BufferedWriter {
-        return buffer(output, CHAR_BUFFER_SIZE)
-    }
-
-    @Contract("null, _ -> new")
-    fun buffer(output: Writer?, size: Int): BufferedWriter {
-        return if (output is BufferedWriter) output else BufferedWriter(output, size)
-    }
-
-    @Throws(IOException::class)
-    fun gzip(input: InputStream?): GZIPInputStream {
-        return gzip(input, BUFFER_SIZE)
-    }
-
-    @Contract("null, _ -> new")
-    @Throws(IOException::class)
-    fun gzip(input: InputStream?, size: Int): GZIPInputStream {
-        return if (input is GZIPInputStream) input else GZIPInputStream(input, size)
-    }
-
-    @Throws(IOException::class)
-    fun gzip(input: OutputStream?): GZIPOutputStream {
-        return gzip(input, BUFFER_SIZE)
-    }
-
-    @Contract("null, _ -> new")
-    @Throws(IOException::class)
-    fun gzip(input: OutputStream?, size: Int): GZIPOutputStream {
-        return if (input is GZIPOutputStream) input else GZIPOutputStream(input, size)
-    }
-
-    fun close(c: Closeable?): Boolean {
-        if (c != null) {
-            try {
-                c.close()
-                return true
-            } catch (e: IOException) {
-                e.printStackTrace()
-            }
-        }
-        return false
-    }
-}

app/src/main/kotlin/com/meloda/fast/io/FileStreams.kt

@@ -1,96 +0,0 @@
-package com.meloda.fast.io
-
-import org.jetbrains.annotations.Contract
-import java.io.*
-import java.math.BigInteger
-
-object FileStreams {
-
-    val lineSeparatorChar = lineSeparator()[0]
-
-    const val ONE_KB = 1024
-    const val ONE_MB = ONE_KB * 1024
-    const val ONE_GB = ONE_MB * 1024
-    const val ONE_TB = ONE_GB * 1024L
-    const val ONE_PB = ONE_TB * 1024L
-    const val ONE_EB = ONE_PB * 1024L
-
-    val ONE_ZB: BigInteger = BigInteger.valueOf(ONE_EB).multiply(BigInteger.valueOf(1024L))
-    val ONE_YB: BigInteger = ONE_ZB.multiply(BigInteger.valueOf(1024L))
-
-    @Throws(IOException::class)
-    fun read(from: File?): String {
-        return EasyStreams.read(reader(from))
-    }
-
-    @Throws(IOException::class)
-    fun write(from: String?, to: File?) {
-        EasyStreams.write(from, writer(to))
-    }
-
-    @Throws(IOException::class)
-    fun write(from: ByteArray?, to: File?) {
-        EasyStreams.write(from, FileOutputStream(to))
-    }
-
-    @Throws(IOException::class)
-    fun append(from: ByteArray?, to: File?) {
-        EasyStreams.write(from, FileOutputStream(to, true))
-    }
-
-    @Throws(IOException::class)
-    fun append(from: CharArray?, to: File?) {
-        EasyStreams.write(from, FileWriter(to, true))
-    }
-
-    @Throws(IOException::class)
-    fun append(from: CharSequence, to: File?) {
-        EasyStreams.write(if (from is String) from else from.toString(), FileWriter(to, true))
-    }
-
-    fun delete(dir: File) {
-        if (dir.isDirectory) {
-            val files = dir.listFiles() ?: return
-            for (file in files) {
-                delete(file)
-            }
-        } else {
-            dir.delete()
-        }
-    }
-
-    fun lineSeparator(): String {
-        return System.lineSeparator()
-    }
-
-    fun search(dir: File, name: String?): File? {
-        require(dir.isDirectory) { "dir can't be file." }
-
-        val files = dir.listFiles() ?: return null
-
-        if (files.isEmpty()) {
-            return null
-        }
-
-        for (file in files) {
-            if (file.isDirectory) {
-                search(file, name)
-            } else if (file.name.contains(name!!)) {
-                return file
-            }
-        }
-        return null
-    }
-
-    @Contract("_ -> new")
-    @Throws(FileNotFoundException::class)
-    fun reader(from: File?): Reader {
-        return InputStreamReader(FileInputStream(from), Charsets.UTF_8)
-    }
-
-    @Contract("_ -> new")
-    @Throws(FileNotFoundException::class)
-    fun writer(to: File?): Writer {
-        return OutputStreamWriter(FileOutputStream(to), Charsets.UTF_8)
-    }
-}

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

@@ -75,29 +75,17 @@ class ConversationsAdapter constructor(
                 return
             }
 
-            val chatUser: VkUser? = if (conversation.isUser()) {
-                profiles[conversation.id]
-            } else null
+            val conversationUser = VkUtils.getConversationUser(conversation, profiles)
+            val conversationGroup = VkUtils.getConversationGroup(conversation, groups)
 
-            val messageUser: VkUser? = if (message.isUser()) {
-                profiles[message.fromId]
-            } else null
+            val messageUser = VkUtils.getMessageUser(message, profiles)
+            val messageGroup = VkUtils.getMessageGroup(message, groups)
 
-            val chatGroup: VkGroup? = if (conversation.isGroup()) {
-                groups[conversation.id]
-            } else null
-
-            val messageGroup: VkGroup? = if (message.isGroup()) {
-                groups[message.fromId]
-            } else null
-
-            val avatar = when {
-                conversation.ownerId == VKConstants.FAST_GROUP_ID -> null
-                conversation.isUser() && chatUser != null && !chatUser.photo200.isNullOrBlank() -> chatUser.photo200
-                conversation.isGroup() && chatGroup != null && !chatGroup.photo200.isNullOrBlank() -> chatGroup.photo200
-                conversation.isChat() && !conversation.photo200.isNullOrBlank() -> conversation.photo200
-                else -> null
-            }
+            val avatar = VkUtils.getConversationAvatar(
+                conversation = conversation,
+                conversationUser = conversationUser,
+                conversationGroup = conversationGroup
+            )
 
             binding.avatar.isVisible = avatar != null
 
@@ -136,7 +124,7 @@ class ConversationsAdapter constructor(
                 }
             }
 
-            binding.online.isVisible = chatUser?.online == true
+            binding.online.isVisible = conversationUser?.online == true
 
             binding.pin.isVisible = conversation.isPinned
 
@@ -210,7 +198,8 @@ class ConversationsAdapter constructor(
             binding.message.text = spanMessage
 
             binding.title.text =
-                getItem(position).title ?: chatUser?.toString() ?: chatGroup?.name ?: "..."
+                getItem(position).title ?: conversationUser?.toString() ?: conversationGroup?.name
+                        ?: "..."
 
             binding.date.text = TimeUtils.getLocalizedTime(context, message.date * 1000L)
 
@@ -232,6 +221,18 @@ class ConversationsAdapter constructor(
         }
     }
 
+    fun removeConversation(conversationId: Int): Int? {
+        for (i in values.indices) {
+            val conversation = values[i]
+            if (conversation.id == conversationId) {
+                values.removeAt(i)
+                return i
+            }
+        }
+
+        return null
+    }
+
     companion object {
         private val COMPARATOR = object : DiffUtil.ItemCallback<VkConversation>() {
             override fun areItemsTheSame(

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

@@ -1,43 +1,46 @@
 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.core.content.ContextCompat
+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.snackbar.Snackbar
+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
 import com.meloda.fast.base.viewmodel.StartProgressEvent
 import com.meloda.fast.base.viewmodel.StopProgressEvent
-import com.meloda.fast.base.viewmodel.VKEvent
+import com.meloda.fast.base.viewmodel.VkEvent
+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.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 :
     BaseViewModelFragment<ConversationsViewModel>(R.layout.fragment_conversations) {
 
-    companion object {
-        const val TAG = "ConversationsFragment"
-    }
-
     override val viewModel: ConversationsViewModel by viewModels()
     private val binding: FragmentConversationsBinding by viewBinding()
 
@@ -53,8 +56,25 @@ class ConversationsFragment :
         }
     }
 
+    private val avatarPopupMenu: PopupMenu
+        get() =
+            PopupMenu(
+                requireContext(),
+                binding.avatar,
+                Gravity.BOTTOM
+            ).apply {
+                menu.add(getString(R.string.log_out))
+                setOnMenuItemClickListener { item ->
+                    if (item.title == getString(R.string.log_out)) {
+                        showLogOutDialog()
+                        return@setOnMenuItemClickListener true
+                    }
+
+                    false
+                }
+            }
+
     private var isPaused = false
-    private var isExpanded = true
 
     override fun onPause() {
         super.onPause()
@@ -71,14 +91,10 @@ class ConversationsFragment :
             requireContext().dataStore.data.map {
                 adapter.isMultilineEnabled = it[AppSettings.keyIsMultilineEnabled] ?: true
                 adapter.notifyItemRangeChanged(0, adapter.itemCount)
-            }.collect { }
+            }.collect()
         }
 
-        binding.createChat.setOnClickListener {
-            Snackbar.make(it, "Test snackbar", Snackbar.LENGTH_SHORT)
-                .setAction("Action") {}
-                .show()
-        }
+        binding.createChat.setOnClickListener {}
 
         UserConfig.vkUser.observe(viewLifecycleOwner) {
             it?.let { user -> binding.avatar.load(user.photo200) { crossfade(100) } }
@@ -87,28 +103,32 @@ class ConversationsFragment :
         binding.appBar.addOnOffsetChangedListener(AppBarLayout.OnOffsetChangedListener { _, verticalOffset ->
             if (isPaused) return@OnOffsetChangedListener
 
-            if (verticalOffset <= -100) {
-                binding.avatarContainer.alpha = 0f
-                return@OnOffsetChangedListener
-            }
+            binding.appBar.animate().translationZ(
+                if (verticalOffset < 0) AndroidUtils.px(3).roundToInt().toFloat()
+                else 0f
+            ).setDuration(50).start()
 
-            val alpha = 1 - abs(verticalOffset * 0.01).toFloat()
+            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
         })
 
-        if (isPaused) {
-            isPaused = false
-            return
-        }
+        binding.avatar.setOnClickListener { avatarPopupMenu.show() }
 
-        binding.toolbar.overflowIcon = ContextCompat.getDrawable(requireContext(), R.drawable.test)
-
-        viewModel.loadProfileUser()
-        viewModel.loadConversations()
-
-        binding.avatar.setOnClickListener {
-            lifecycleScope.launchWhenResumed {
+        binding.avatar.setOnLongClickListener {
+            lifecycleScope.launch {
                 requireContext().dataStore.edit { settings ->
                     val isMultilineEnabled = settings[AppSettings.keyIsMultilineEnabled] ?: true
                     settings[AppSettings.keyIsMultilineEnabled] = !isMultilineEnabled
@@ -117,15 +137,59 @@ class ConversationsFragment :
                     adapter.notifyItemRangeChanged(0, adapter.itemCount)
                 }
             }
+            true
         }
+
+        if (isPaused) {
+            isPaused = false
+            return
+        }
+
+        viewModel.loadProfileUser()
+        viewModel.loadConversations()
     }
 
-    override fun onEvent(event: VKEvent) {
+    private fun showLogOutDialog() {
+        val isEasterEgg = UserConfig.userId == UserConfig.userId
+
+        MaterialAlertDialogBuilder(requireContext())
+            .setTitle(
+                if (isEasterEgg) "Выйти внаружу?"
+                else getString(R.string.sign_out_confirm_title)
+            )
+            .setMessage(R.string.sign_out_confirm)
+            .setPositiveButton(
+                if (isEasterEgg) "Выйти внаружу"
+                else getString(R.string.action_sign_out)
+            ) { _, _ ->
+                lifecycleScope.launch(Dispatchers.Default) {
+                    UserConfig.clear()
+                    AppGlobal.appDatabase.clearAllTables()
+
+                    requireActivity().finishAffinity()
+                    requireActivity().startActivity(
+                        Intent(
+                            requireContext(),
+                            MainActivity::class.java
+                        )
+                    )
+                }
+            }
+            .setNegativeButton(R.string.no, null)
+            .show()
+    }
+
+    override fun onEvent(event: VkEvent) {
         super.onEvent(event)
         when (event) {
-            is ConversationsLoaded -> refreshConversations(event)
             is StartProgressEvent -> onProgressStarted()
             is StopProgressEvent -> onProgressStopped()
+
+            is ConversationsLoaded -> refreshConversations(event)
+            is ConversationsDelete -> deleteConversation(event.peerId)
+
+            // TODO: 10-Oct-21 remove this and sort conversations list
+            is ConversationsPin, is ConversationsUnpin -> viewModel.loadConversations()
         }
     }
 
@@ -179,13 +243,19 @@ class ConversationsFragment :
     private fun fillRecyclerView(values: List<VkConversation>) {
         adapter.values.clear()
         adapter.values += values
-        adapter.notifyItemRangeChanged(0, adapter.itemCount)
+        adapter.submitList(values)
     }
 
     private fun onItemClick(position: Int) {
         val conversation = adapter[position]
-        val user = if (conversation.isUser()) adapter.profiles[conversation.id] else null
-        val group = if (conversation.isGroup()) adapter.groups[conversation.id] else null
+
+        val user =
+            if (conversation.isUser()) adapter.profiles[conversation.id]
+            else null
+
+        val group =
+            if (conversation.isGroup()) adapter.groups[conversation.id]
+            else null
 
         findNavController().navigate(
             R.id.toMessagesHistory,
@@ -198,8 +268,81 @@ class ConversationsFragment :
     }
 
     private fun onItemLongClick(position: Int): Boolean {
-        binding.createChat.performClick()
+        showOptionsDialog(position)
         return true
     }
 
+    private fun showOptionsDialog(position: Int) {
+        val conversation = adapter[position]
+
+        var canPinOneMoreDialog = true
+        if (adapter.itemCount > 4) {
+            val firstFiveDialogs = adapter.values.subList(0, 5)
+            var pinnedCount = 0
+
+            firstFiveDialogs.forEach { if (it.isPinned) pinnedCount++ }
+            if (pinnedCount == 5 && position > 4) {
+                canPinOneMoreDialog = false
+            }
+        }
+
+        val pin = getString(
+            if (conversation.isPinned) R.string.conversation_context_action_unpin
+            else R.string.conversation_context_action_pin
+        )
+
+        val delete = getString(R.string.conversation_context_action_delete)
+
+        val params = mutableListOf<String>()
+
+        if (canPinOneMoreDialog) params += pin
+
+        params += delete
+
+        val arrayParams = params.toTypedArray()
+
+        MaterialAlertDialogBuilder(requireContext())
+            .setItems(arrayParams) { _, which ->
+                when (params[which]) {
+                    pin -> showPinConversationDialog(conversation)
+                    delete -> showDeleteConversationDialog(conversation.id)
+                }
+            }.show()
+    }
+
+    private fun showDeleteConversationDialog(conversationId: Int) {
+        MaterialAlertDialogBuilder(requireContext())
+            .setTitle(R.string.confirm_delete_conversation)
+            .setPositiveButton(R.string.action_delete) { _, _ ->
+                viewModel.deleteConversation(conversationId)
+            }
+            .setNegativeButton(android.R.string.cancel, null)
+            .show()
+    }
+
+    private fun deleteConversation(conversationId: Int) {
+        val index = adapter.removeConversation(conversationId) ?: return
+        adapter.notifyItemRemoved(index)
+    }
+
+    private fun showPinConversationDialog(conversation: VkConversation) {
+        val isPinned = conversation.isPinned
+        MaterialAlertDialogBuilder(requireContext())
+            .setTitle(
+                if (isPinned) R.string.confirm_unpin_conversation
+                else R.string.confirm_pin_conversation
+            )
+            .setPositiveButton(
+                if (isPinned) R.string.action_unpin
+                else R.string.action_pin
+            ) { _, _ ->
+                viewModel.pinConversation(
+                    peerId = conversation.id,
+                    pin = !isPinned
+                )
+            }
+            .setNegativeButton(android.R.string.cancel, null)
+            .show()
+    }
+
 }

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

@@ -3,17 +3,14 @@ package com.meloda.fast.screens.conversations
 import androidx.lifecycle.viewModelScope
 import com.meloda.fast.api.UserConfig
 import com.meloda.fast.api.VKConstants
-import com.meloda.fast.api.network.datasource.ConversationsDataSource
-import com.meloda.fast.api.network.datasource.UsersDataSource
 import com.meloda.fast.api.model.VkConversation
 import com.meloda.fast.api.model.VkGroup
 import com.meloda.fast.api.model.VkUser
-import com.meloda.fast.api.model.request.ConversationsGetRequest
-import com.meloda.fast.api.model.request.UsersGetRequest
+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.StartProgressEvent
-import com.meloda.fast.base.viewmodel.StopProgressEvent
-import com.meloda.fast.base.viewmodel.VKEvent
+import com.meloda.fast.base.viewmodel.VkEvent
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
@@ -22,18 +19,20 @@ import javax.inject.Inject
 
 @HiltViewModel
 class ConversationsViewModel @Inject constructor(
-    private val dataSource: ConversationsDataSource,
-    private val usersDataSource: UsersDataSource
+    private val conversations: ConversationsDataSource,
+    private val users: UsersDataSource
 ) : BaseViewModel() {
 
-    fun loadConversations() = viewModelScope.launch(Dispatchers.Default) {
+    fun loadConversations(
+        offset: Int? = null
+    ) = viewModelScope.launch(Dispatchers.Default) {
         makeJob({
-            dataSource.getAllChats(
+            conversations.get(
                 ConversationsGetRequest(
                     count = 30,
-//                    offset = 177,
                     extended = true,
-                    fields = "${VKConstants.USER_FIELDS},${VKConstants.GROUP_FIELDS}"
+                    offset = offset,
+                    fields = VKConstants.ALL_FIELDS
                 )
             )
         },
@@ -52,6 +51,7 @@ class ConversationsViewModel @Inject constructor(
                     sendEvent(
                         ConversationsLoaded(
                             count = response.count,
+                            offset = offset,
                             unreadCount = response.unreadCount ?: 0,
                             conversations = response.items.map { items ->
                                 items.conversation.asVkConversation(
@@ -63,34 +63,59 @@ class ConversationsViewModel @Inject constructor(
                         )
                     )
                 }
-            },
-            onError = {
-                val er = it
-                throw it
-            },
-            onStart = { sendEvent(StartProgressEvent) },
-            onEnd = { sendEvent(StopProgressEvent) })
+            }
+        )
     }
 
     fun loadProfileUser() = viewModelScope.launch {
-        makeJob({
-            usersDataSource.getById(UsersGetRequest(fields = "online,photo_200"))
-        },
+        makeJob({ users.getById(UsersGetRequest(fields = VKConstants.USER_FIELDS)) },
             onAnswer = {
                 it.response?.let { r ->
                     val users = r.map { u -> u.asVkUser() }
-                    usersDataSource.storeUsers(users)
+                    this@ConversationsViewModel.users.storeUsers(users)
 
                     UserConfig.vkUser.value = users[0]
                 }
             })
     }
+
+    fun deleteConversation(peerId: Int) = viewModelScope.launch {
+        makeJob({
+            conversations.delete(
+                ConversationsDeleteRequest(peerId)
+            )
+        }, onAnswer = { sendEvent(ConversationsDelete(peerId)) })
+    }
+
+    fun pinConversation(
+        peerId: Int,
+        pin: Boolean
+    ) = viewModelScope.launch {
+        if (pin) {
+            makeJob(
+                { conversations.pin(ConversationsPinRequest(peerId)) },
+                onAnswer = { sendEvent(ConversationsPin(peerId)) }
+            )
+        } else {
+            makeJob(
+                { conversations.unpin(ConversationsUnpinRequest(peerId)) },
+                onAnswer = { sendEvent(ConversationsUnpin(peerId)) }
+            )
+        }
+    }
 }
 
 data class ConversationsLoaded(
     val count: Int,
+    val offset: Int?,
     val unreadCount: Int?,
     val conversations: List<VkConversation>,
     val profiles: HashMap<Int, VkUser>,
     val groups: HashMap<Int, VkGroup>
-) : VKEvent()
+) : VkEvent()
+
+data class ConversationsDelete(val peerId: Int) : VkEvent()
+
+data class ConversationsPin(val peerId: Int) : VkEvent()
+
+data class ConversationsUnpin(val peerId: Int) : VkEvent()

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

@@ -1,11 +1,17 @@
 package com.meloda.fast.screens.login
 
+import android.annotation.SuppressLint
+import android.graphics.Bitmap
 import android.graphics.Typeface
 import android.os.Bundle
+import android.util.Log
 import android.view.KeyEvent
 import android.view.View
 import android.view.inputmethod.EditorInfo
 import android.viewbinding.library.fragment.viewBinding
+import android.webkit.CookieManager
+import android.webkit.WebView
+import android.webkit.WebViewClient
 import android.widget.Toast
 import androidx.appcompat.app.AlertDialog
 import androidx.core.view.isVisible
@@ -19,6 +25,8 @@ import com.google.android.material.snackbar.Snackbar
 import com.google.android.material.textfield.TextInputLayout
 import com.meloda.fast.BuildConfig
 import com.meloda.fast.R
+import com.meloda.fast.api.UserConfig
+import com.meloda.fast.api.VKConstants
 import com.meloda.fast.base.BaseViewModelFragment
 import com.meloda.fast.base.viewmodel.*
 import com.meloda.fast.databinding.DialogCaptchaBinding
@@ -29,7 +37,10 @@ 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
 import kotlin.concurrent.schedule
 
 @AndroidEntryPoint
@@ -59,14 +70,14 @@ class LoginFragment : BaseViewModelFragment<LoginViewModel>(R.layout.fragment_lo
         binding.loginInput.clearFocus()
     }
 
-    override fun onEvent(event: VKEvent) {
+    override fun onEvent(event: VkEvent) {
         super.onEvent(event)
 
         when (event) {
-            is ShowError -> showErrorSnackbar(event.errorDescription)
+            is ErrorEvent -> showErrorSnackbar(event.errorText)
             is CaptchaEvent -> showCaptchaDialog(event.sid, event.image)
             is ValidationEvent -> showValidationRequired(event.sid)
-            is SuccessAuth -> goToMain(event.haveAuthorized)
+            is SuccessAuth -> goToMain(event)
 
             is CodeSent -> showValidationDialog()
             is StartProgressEvent -> onProgressStarted()
@@ -89,11 +100,91 @@ class LoginFragment : BaseViewModelFragment<LoginViewModel>(R.layout.fragment_lo
     }
 
     private fun prepareViews() {
+        prepareWebView()
         prepareEmailEditText()
         preparePasswordEditText()
         prepareAuthButton()
     }
 
+    @SuppressLint("SetJavaScriptEnabled")
+    private fun prepareWebView() {
+        with(binding.webView) {
+            settings.javaScriptEnabled = true
+            settings.domStorageEnabled = true
+
+            clearCache(true)
+            webViewClient = object : WebViewClient() {
+                override fun onPageStarted(view: WebView?, url: String, favicon: Bitmap?) {
+                    super.onPageStarted(view, url, favicon)
+                    parseAuthUrl(url)
+                }
+
+                override fun onPageFinished(view: WebView, url: String) {
+                    super.onPageFinished(view, url)
+
+                    val a = Jsoup.parse(url)
+
+                    val b = 0
+                }
+            }
+        }
+
+        CookieManager.getInstance().apply {
+            removeAllCookies(null)
+            flush()
+            setAcceptCookie(true)
+        }
+    }
+
+    private fun launchWebView() {
+        binding.webView.loadUrl(
+            "https://oauth.vk.com/authorize?client_id=${UserConfig.FAST_APP_ID}&" +
+                    "display=mobile&scope=136297695&" +
+                    "redirect_uri=${
+                        URLEncoder.encode(
+                            "https://oauth.vk.com/blank.html",
+                            Charsets.UTF_8.toString()
+                        )
+                    }&response_type=token&v=${VKConstants.API_VERSION}"
+        )
+    }
+
+    private fun parseAuthUrl(url: String) {
+        if (url.isBlank()) return
+
+        if (url.startsWith("https://oauth.vk.com/blank.html")) {
+            if (url.contains("error")) {
+                Log.e("Fast::Login", "errorUrl: $url")
+                return
+            }
+
+            val authData = parseRedirectUrl(url)
+            if (authData == null) {
+                Log.e("Fast::Login", "errorUrl: $url")
+                return
+            }
+
+            val token = authData.first
+
+            UserConfig.fastToken = token
+        }
+    }
+
+    private fun parseRedirectUrl(url: String): Pair<String, Int>? {
+        val accessToken = extractPattern(url, "access_token=(.*?)&") ?: return null
+        val userId = extractPattern(url, "id=(\\d*)")?.toIntOrNull() ?: return null
+
+        return accessToken to userId
+    }
+
+    private fun extractPattern(string: String, pattern: String): String? {
+        val p = Pattern.compile(pattern)
+        val m = p.matcher(string)
+        return if (m.find()) {
+            m.group(1)
+        } else null
+    }
+
     private fun prepareEmailEditText() {
         binding.loginInput.addTextChangedListener {
             if (!binding.loginLayout.error.isNullOrBlank()) binding.loginLayout.error = ""
@@ -293,8 +384,13 @@ class LoginFragment : BaseViewModelFragment<LoginViewModel>(R.layout.fragment_lo
         snackbar.show()
     }
 
-    private fun goToMain(haveAuthorized: Boolean) = lifecycleScope.launch {
-        if (haveAuthorized) delay(500)
+    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

@@ -1,11 +1,10 @@
 package com.meloda.fast.screens.login
 
 import androidx.lifecycle.viewModelScope
-import com.meloda.fast.api.UserConfig
 import com.meloda.fast.api.VKConstants
 import com.meloda.fast.api.VKException
-import com.meloda.fast.api.model.request.RequestAuthDirect
-import com.meloda.fast.api.network.datasource.AuthDataSource
+import com.meloda.fast.api.network.auth.AuthDataSource
+import com.meloda.fast.api.network.auth.RequestAuthDirect
 import com.meloda.fast.base.viewmodel.*
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.launch
@@ -45,33 +44,37 @@ class LoginViewModel @Inject constructor(
                     return@makeJob
                 }
 
-                UserConfig.userId = it.userId
-                UserConfig.accessToken = it.accessToken
-
-                sendEvent(SuccessAuth())
+                sendEvent(
+                    SuccessAuth(
+                        userId = it.userId,
+                        vkToken = it.accessToken
+                    )
+                )
             },
             onError = {
-                if (it !is VKException) return@makeJob
+                if (it !is VKException) {
+                    onError(it)
+                    return@makeJob
+                }
 
+                // TODO: 9/27/2021 use `delay` parameter
                 twoFaCode?.let { sendEvent(CodeSent) }
-            },
-            onStart = { sendEvent(StartProgressEvent) },
-            onEnd = { sendEvent(StopProgressEvent) }
+            }
         )
     }
 
     fun sendSms(validationSid: String) = viewModelScope.launch {
         makeJob({ dataSource.sendSms(validationSid) },
-            onAnswer = { sendEvent(CodeSent) },
-            onError = {},
-            onStart = {},
-            onEnd = {})
+            onAnswer = { sendEvent(CodeSent) }
+        )
     }
 
 }
 
-data class ShowError(val errorDescription: String) : VKEvent()
+object CodeSent : VkEvent()
 
-object CodeSent : VKEvent()
-
-data class SuccessAuth(val haveAuthorized: Boolean = true) : VKEvent()
+data class SuccessAuth(
+    val haveAuthorized: Boolean = true,
+    val userId: Int,
+    val vkToken: String
+) : VkEvent()

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

@@ -42,5 +42,4 @@ class MainFragment : BaseViewModelFragment<MainViewModel>(R.layout.fragment_main
         }
     }
 
-
 }

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

@@ -15,9 +15,11 @@ 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 com.meloda.fast.R
+import com.meloda.fast.api.UserConfig
 import com.meloda.fast.api.VkUtils
 import com.meloda.fast.api.model.VkGroup
 import com.meloda.fast.api.model.VkMessage
@@ -30,9 +32,11 @@ import java.text.SimpleDateFormat
 import java.util.*
 import kotlin.math.roundToInt
 
+// TODO: 9/29/2021 use recyclerview for viewing attachments
 class AttachmentInflater constructor(
     private val context: Context,
     private val container: LinearLayoutCompat,
+    private val textContainer: LinearLayoutCompat,
     private val message: VkMessage,
     private val profiles: Map<Int, VkUser>,
     private val groups: Map<Int, VkGroup>
@@ -44,16 +48,28 @@ class AttachmentInflater constructor(
     private val playColor = ContextCompat.getColor(context, R.color.a3_700)
     private val playBackgroundColor = ContextCompat.getColor(context, R.color.a3_200)
 
+    var photoClickListener: ((url: String) -> Unit)? = null
+
+    fun setPhotoClickListener(unit: ((url: String) -> Unit)?): AttachmentInflater {
+        this.photoClickListener = unit
+        return this
+    }
+
     fun inflate() {
         if (message.attachments.isNullOrEmpty()) return
         attachments = message.attachments!!
 
         container.removeAllViews()
+        textContainer.removeAllViews()
 
         if (attachments.size == 1) {
             when (val attachment = attachments[0]) {
                 is VkSticker -> return sticker(attachment)
                 is VkWall -> return wall(attachment)
+                is VkVoiceMessage -> return voice(attachment)
+                is VkCall -> return call(attachment)
+                is VkGraffiti -> return graffiti(attachment)
+                is VkGift -> return gift(attachment)
             }
         }
 
@@ -82,7 +98,6 @@ class AttachmentInflater constructor(
                 is VkAudio -> audio(attachment)
                 is VkFile -> file(attachment)
                 is VkLink -> link(attachment)
-                is VkStory -> story(attachment)
 
                 else -> Log.e(
                     "Attachment inflater",
@@ -94,12 +109,15 @@ class AttachmentInflater constructor(
     }
 
     private fun photo(photo: VkPhoto) {
-        val size = photo.sizeOfType('m') ?: return
+        val size = photo.getSizeOrSmaller('y') ?: return
 
         val newPhoto = ShapeableImageView(context).apply {
             layoutParams = LinearLayoutCompat.LayoutParams(
-                AndroidUtils.px(size.width).roundToInt(),
-                AndroidUtils.px(size.height).roundToInt()
+//                ViewGroup.LayoutParams.MATCH_PARENT,
+                size.width,
+                size.height
+//                AndroidUtils.px(size.width).roundToInt(),
+//                AndroidUtils.px(size.height).roundToInt()
             )
 
             shapeAppearanceModel =
@@ -110,6 +128,12 @@ class AttachmentInflater constructor(
             scaleType = ImageView.ScaleType.CENTER_CROP
         }
 
+        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,
@@ -222,14 +246,7 @@ class AttachmentInflater constructor(
         binding.caption.text = link.caption
         binding.caption.isVisible = !link.caption.isNullOrBlank()
 
-        binding.preview.shapeAppearanceModel.toBuilder()
-            .setAllCornerSizes(40f)
-            .build()
-            .let {
-                binding.preview.shapeAppearanceModel = it
-            }
-
-        link.photo?.sizeOfType('m')?.let {
+        link.photo?.getMaxSize()?.let {
             binding.preview.load(it.url) { crossfade(150) }
             binding.preview.isVisible = true
             return
@@ -245,8 +262,8 @@ class AttachmentInflater constructor(
 
         with(binding.image) {
             layoutParams = LinearLayoutCompat.LayoutParams(
-                AndroidUtils.px(180).roundToInt(),
-                AndroidUtils.px(180).roundToInt()
+                AndroidUtils.px(140).roundToInt(),
+                AndroidUtils.px(140).roundToInt()
             )
 
             load(url) { crossfade(150) }
@@ -282,7 +299,7 @@ class AttachmentInflater constructor(
 
         binding.avatar.isVisible = group != null || user != null
         binding.avatar.shapeAppearanceModel.toBuilder()
-            .setAllCornerSizes(40f)
+            .setAllCornerSizes(AndroidUtils.px(20))
             .build()
             .let {
                 binding.avatar.shapeAppearanceModel = it
@@ -302,8 +319,91 @@ class AttachmentInflater constructor(
         ).format(wall.date * 1000L)
     }
 
-    private fun story(story: VkStory) {
+    private fun voice(voiceMessage: VkVoiceMessage) {
+        val binding = ItemMessageAttachmentVoiceBinding.inflate(inflater, textContainer, true)
 
+        if (message.isOut)
+            binding.root.updatePadding(
+                bottom = AndroidUtils.px(6).roundToInt(),
+                left = AndroidUtils.px(6).roundToInt()
+            )
+
+        val waveform = IntArray(voiceMessage.waveform.size)
+        voiceMessage.waveform.forEachIndexed { index, i -> waveform[index] = i }
+
+        binding.waveform.sample = waveform
+        binding.waveform.maxProgress = 100f
+        binding.waveform.progress = 100f
+
+        binding.duration.text = SimpleDateFormat(
+            "mm:ss",
+            Locale.getDefault()
+        ).format(voiceMessage.duration * 1000L)
+    }
+
+    private fun call(call: VkCall) {
+        val binding = ItemMessageAttachmentCallBinding.inflate(inflater, textContainer, true)
+
+        if (message.isOut)
+            binding.root.updatePadding(
+                bottom = AndroidUtils.px(5).roundToInt(),
+                left = AndroidUtils.px(6).roundToInt()
+            )
+
+        val callType =
+            context.getString(
+                if (call.initiatorId == UserConfig.userId) R.string.message_call_type_outgoing
+                else R.string.message_call_type_incoming
+            )
+
+        binding.type.text = callType
+
+        var callState =
+            context.getString(
+                if (call.state == "reached") R.string.message_call_state_ended
+                else if (call.state == "canceled_by_initiator") {
+                    if (call.initiatorId == UserConfig.userId) R.string.message_call_state_cancelled
+                    else R.string.message_call_state_missed
+                } else R.string.message_call_unknown
+            )
+
+        if (callState == context.getString(R.string.message_call_unknown)) callState = call.state
+
+        binding.state.text = callState
+    }
+
+    private fun graffiti(graffiti: VkGraffiti) {
+        val binding = ItemMessageAttachmentGraffitiBinding.inflate(inflater, container, true)
+
+        val url = graffiti.url
+
+        val heightCoefficient = graffiti.height / AndroidUtils.px(140)
+
+        with(binding.image) {
+            layoutParams = LinearLayoutCompat.LayoutParams(
+                AndroidUtils.px(140).roundToInt(),
+                (graffiti.height / heightCoefficient).roundToInt()
+            )
+
+            load(url) { crossfade(150) }
+        }
+    }
+
+    private fun gift(gift: VkGift) {
+        val binding = ItemMessageAttachmentGiftBinding.inflate(inflater, container, true)
+
+        val url = gift.thumb256 ?: gift.thumb96 ?: gift.thumb48
+
+        with(binding.image) {
+            shapeAppearanceModel = shapeAppearanceModel.withCornerSize { AndroidUtils.px(12) }
+
+            layoutParams = LinearLayoutCompat.LayoutParams(
+                AndroidUtils.px(140).roundToInt(),
+                AndroidUtils.px(140).roundToInt()
+            )
+
+            load(url) { crossfade(150) }
+        }
     }
 
 }

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

@@ -5,6 +5,7 @@ import android.graphics.Color
 import android.graphics.drawable.ColorDrawable
 import android.view.View
 import android.view.ViewGroup
+import android.widget.Toast
 import androidx.appcompat.widget.LinearLayoutCompat
 import androidx.core.view.isVisible
 import androidx.recyclerview.widget.DiffUtil
@@ -29,7 +30,9 @@ class MessagesHistoryAdapter constructor(
     val conversation: VkConversation,
     val profiles: HashMap<Int, VkUser> = hashMapOf(),
     val groups: HashMap<Int, VkGroup> = hashMapOf()
-) : BaseAdapter<VkMessage, MessagesHistoryAdapter.Holder>(context, values, COMPARATOR) {
+) : BaseAdapter<VkMessage, MessagesHistoryAdapter.BasicHolder>(context, values, COMPARATOR) {
+
+    var avatarLongClickListener: ((position: Int) -> Unit)? = null
 
     override fun getItemViewType(position: Int): Int {
         when {
@@ -49,7 +52,7 @@ class MessagesHistoryAdapter constructor(
     private fun isPositionHeader(position: Int) = position == 0
     private fun isPositionFooter(position: Int) = position >= actualSize
 
-    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): Holder {
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): BasicHolder {
         return when (viewType) {
             // magick numbers is great!
             HEADER -> Header(createEmptyView(60))
@@ -67,6 +70,21 @@ class MessagesHistoryAdapter constructor(
         }
     }
 
+//    override fun initListeners(itemView: View, position: Int) {
+//        if (itemView is AdapterView<*>) return
+//
+//        itemView.setOnClickListener { onItemClickListener?.invoke(position, itemView) }
+//        itemView.setOnLongClickListener { itemLongClickListener.invoke(position) }
+//    }
+
+
+    val actualSize get() = values.size
+
+    override fun getItemCount(): Int {
+        if (actualSize == 0) return 2
+        return super.getItemCount() + 2
+    }
+
     private fun createEmptyView(size: Int) = View(context).apply {
         layoutParams = ViewGroup.LayoutParams(
             ViewGroup.LayoutParams.MATCH_PARENT,
@@ -78,22 +96,22 @@ class MessagesHistoryAdapter constructor(
         isFocusable = false
     }
 
-    override fun onBindViewHolder(holder: Holder, position: Int) {
+    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 Holder(v: View = View(context)) : BaseHolder(v)
+    open inner class BasicHolder(v: View = View(context)) : BaseHolder(v)
 
-    inner class Header(v: View) : Holder(v)
+    inner class Header(v: View) : BasicHolder(v)
 
-    inner class Footer(v: View) : Holder(v)
+    inner class Footer(v: View) : BasicHolder(v)
 
     inner class IncomingMessage(
         private val binding: ItemMessageInBinding
-    ) : Holder(binding.root) {
+    ) : BasicHolder(binding.root) {
 
         override fun bind(position: Int) {
             val message = getItem(position)
@@ -103,33 +121,42 @@ class MessagesHistoryAdapter constructor(
 
             MessagesPreparator(
                 context = context,
+
+                root = binding.root,
+
                 conversation = conversation,
                 message = message,
                 prevMessage = prevMessage,
                 nextMessage = nextMessage,
 
+                title = binding.title,
+
                 avatar = binding.avatar,
                 bubble = binding.bubble,
                 text = binding.text,
                 spacer = binding.spacer,
-                time = binding.time,
                 unread = binding.unread,
+
+                textContainer = binding.textContainer,
                 attachmentContainer = binding.attachmentContainer,
                 attachmentSpacer = binding.attachmentSpacer,
 
                 profiles = profiles,
                 groups = groups
-            ).prepare()
+            ).setPhotoClickListener {
+                Toast.makeText(context, "Photo url: $it", Toast.LENGTH_LONG).show()
+            }.prepare()
+
+            binding.avatar.setOnLongClickListener() {
+                avatarLongClickListener?.invoke(position)
+                true
+            }
         }
     }
 
     inner class OutgoingMessage(
         private val binding: ItemMessageOutBinding
-    ) : Holder(binding.root) {
-
-        init {
-            binding.bubbleStroke.setOnClickListener { binding.bubble.performClick() }
-        }
+    ) : BasicHolder(binding.root) {
 
         override fun bind(position: Int) {
             val message = getItem(position)
@@ -138,16 +165,17 @@ class MessagesHistoryAdapter constructor(
 
             MessagesPreparator(
                 context = context,
+                root = binding.root,
                 conversation = conversation,
                 message = message,
                 prevMessage = prevMessage,
 
                 bubble = binding.bubble,
-                bubbleStroke = binding.bubbleStroke,
                 text = binding.text,
                 spacer = binding.spacer,
-                time = binding.time,
                 unread = binding.unread,
+
+                textContainer = binding.textContainer,
                 attachmentContainer = binding.attachmentContainer,
                 attachmentSpacer = binding.attachmentSpacer,
 
@@ -159,7 +187,7 @@ class MessagesHistoryAdapter constructor(
 
     inner class ServiceMessage(
         private val binding: ItemMessageServiceBinding
-    ) : Holder(binding.root) {
+    ) : BasicHolder(binding.root) {
 
         private val youPrefix = context.getString(R.string.you_message_prefix)
 
@@ -198,7 +226,7 @@ class MessagesHistoryAdapter constructor(
 
                 binding.photo.isVisible = true
 
-                val size = attachment.sizeOfType('m') ?: return@let
+                val size = attachment.getSizeOrSmaller('y') ?: return@let
 
                 binding.photo.layoutParams = LinearLayoutCompat.LayoutParams(
                     size.width,
@@ -213,11 +241,39 @@ class MessagesHistoryAdapter constructor(
         }
     }
 
-    private val actualSize get() = values.size
+    fun removeMessageById(id: Int): Int? {
+        for (i in values.indices) {
+            val message = values[i]
+            if (message.id == id) {
+                values.removeAt(i)
+                return i
+            }
+        }
 
-    override fun getItemCount(): Int {
-        if (actualSize == 0) return 2
-        return super.getItemCount() + 2
+        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
+        }
+
+        return null
     }
 
     companion object {

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

@@ -1,12 +1,16 @@
 package com.meloda.fast.screens.messages
 
-import android.graphics.Color
+import android.content.res.ColorStateList
 import android.graphics.drawable.ColorDrawable
 import android.os.Bundle
 import android.text.TextUtils
 import android.view.View
 import android.viewbinding.library.fragment.viewBinding
+import android.widget.Toast
+import androidx.coordinatorlayout.widget.CoordinatorLayout
+import androidx.core.content.ContextCompat
 import androidx.core.view.isVisible
+import androidx.core.view.setPadding
 import androidx.core.widget.doAfterTextChanged
 import androidx.fragment.app.viewModels
 import androidx.lifecycle.MutableLiveData
@@ -16,6 +20,8 @@ import coil.load
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import com.meloda.fast.R
 import com.meloda.fast.api.UserConfig
+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
 import com.meloda.fast.api.model.VkMessage
@@ -23,7 +29,8 @@ import com.meloda.fast.api.model.VkUser
 import com.meloda.fast.base.BaseViewModelFragment
 import com.meloda.fast.base.viewmodel.StartProgressEvent
 import com.meloda.fast.base.viewmodel.StopProgressEvent
-import com.meloda.fast.base.viewmodel.VKEvent
+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.util.AndroidUtils
@@ -32,6 +39,7 @@ import dagger.hilt.android.AndroidEntryPoint
 import java.text.SimpleDateFormat
 import java.util.*
 import kotlin.concurrent.schedule
+import kotlin.math.roundToInt
 
 @AndroidEntryPoint
 class MessagesHistoryFragment :
@@ -43,7 +51,7 @@ class MessagesHistoryFragment :
     private val action = MutableLiveData<Action>()
 
     private enum class Action {
-        RECORD, SEND
+        RECORD, SEND, EDIT, DELETE
     }
 
     private val user: VkUser? by lazy {
@@ -62,14 +70,19 @@ class MessagesHistoryFragment :
         MessagesHistoryAdapter(requireContext(), mutableListOf(), conversation).also {
             it.itemClickListener = this::onItemClick
             it.itemLongClickListener = this::onItemLongClick
+            it.avatarLongClickListener = this::onAvatarLongClickListener
         }
     }
 
     private var timestampTimer: Timer? = null
 
+    private lateinit var attachmentController: AttachmentPanelController
+
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
 
+        attachmentController = AttachmentPanelController().init()
+
         val title = when {
             conversation.isChat() -> conversation.title
             conversation.isUser() -> user?.toString()
@@ -98,19 +111,7 @@ class MessagesHistoryFragment :
 
         binding.status.text = status ?: "..."
 
-        val avatar = when {
-            conversation.isChat() -> conversation.photo200
-            conversation.isUser() -> user?.photo200
-            conversation.isGroup() -> group?.photo200
-            else -> null
-        }
-
-        binding.avatar.load(avatar) {
-            crossfade(false)
-            error(ColorDrawable(Color.RED))
-        }
-
-        binding.online.isVisible = user?.online == true
+        prepareAvatar()
 
         prepareViews()
 
@@ -166,8 +167,14 @@ class MessagesHistoryFragment :
         })
 
         binding.message.doAfterTextChanged {
-            val newValue = if (it.toString().isNotBlank()) Action.SEND
-            else Action.RECORD
+            val canSend = it.toString().isNotBlank()
+
+            val newValue: Action =
+                when {
+                    attachmentController.isEditing -> if (it.isNullOrBlank()) Action.DELETE else Action.EDIT
+                    canSend -> Action.SEND
+                    else -> Action.RECORD
+                }
 
             if (action.value != newValue) action.value = newValue
         }
@@ -192,52 +199,159 @@ class MessagesHistoryFragment :
                 Action.SEND -> {
                     binding.action.setImageResource(R.drawable.ic_round_send_24)
                 }
+                Action.EDIT -> {
+                    binding.action.setImageResource(R.drawable.ic_round_done_24)
+                }
+                Action.DELETE -> {
+                    binding.action.setImageResource(R.drawable.ic_trash_can_outline_24)
+                }
                 else -> return@observe
             }
         }
+
+        attachmentController.isPanelVisible.observe(viewLifecycleOwner) {
+            if (it) 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
+        }
+
+        binding.attachmentPanel.setOnClickListener c@{
+            val message = attachmentController.message.value ?: return@c
+
+            val index = adapter.values.indexOf(message)
+            if (index == -1) return@c
+
+            binding.recyclerView.smoothScrollToPosition(index)
+        }
+
+        binding.dismissReply.setOnClickListener {
+            if (attachmentController.message.value != null)
+                attachmentController.message.value = null
+        }
+    }
+
+    private fun prepareAvatar() {
+        val avatar = when {
+            conversation.ownerId == VKConstants.FAST_GROUP_ID -> null
+            conversation.isUser() -> user?.photo200
+            conversation.isGroup() -> group?.photo200
+            conversation.isChat() -> conversation.photo200
+            else -> null
+        }
+
+        binding.avatar.isVisible = avatar != null
+
+        if (avatar == null) {
+            binding.avatarPlaceholder.isVisible = true
+
+            if (conversation.ownerId == VKConstants.FAST_GROUP_ID) {
+                binding.placeholderBack.setImageDrawable(
+                    ColorDrawable(
+                        ContextCompat.getColor(requireContext(), R.color.a1_400)
+                    )
+                )
+                binding.placeholder.imageTintList =
+                    ColorStateList.valueOf(ContextCompat.getColor(requireContext(), R.color.a1_0))
+                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.placeholder.imageTintList =
+                    ColorStateList.valueOf(ContextCompat.getColor(requireContext(), R.color.n2_500))
+                binding.placeholder.setImageResource(R.drawable.ic_account_circle_cut)
+                binding.placeholder.setPadding(0)
+                binding.avatar.setImageDrawable(null)
+            }
+        } else {
+            binding.avatar.load(avatar) {
+                crossfade(200)
+                target {
+                    binding.avatarPlaceholder.isVisible = false
+                    binding.avatar.setImageDrawable(it)
+                }
+            }
+        }
+
+        binding.phantomIcon.isVisible = conversation.isPhantom
+        binding.online.isVisible = user?.online == true
+        binding.pin.isVisible = conversation.isPinned
+    }
+
+    private fun performAction() {
+        when (action.value) {
+            Action.RECORD -> {
+            }
+            Action.SEND -> {
+                val messageText = binding.message.text.toString().trim()
+                if (messageText.isBlank()) return
+
+                val date = System.currentTimeMillis()
+
+                val message = VkMessage(
+                    id = -1,
+                    text = messageText,
+                    isOut = true,
+                    peerId = conversation.id,
+                    fromId = UserConfig.userId,
+                    date = (date / 1000).toInt(),
+                    randomId = 0,
+                    replyMessage = attachmentController.message.value
+                )
+
+                adapter.add(message)
+                adapter.notifyItemInserted(adapter.actualSize - 1)
+                binding.recyclerView.smoothScrollToPosition(adapter.lastPosition)
+                binding.message.clear()
+
+                val replyMessage = attachmentController.message.value
+                attachmentController.message.value = null
+
+                viewModel.sendMessage(
+                    peerId = conversation.id,
+                    message = messageText,
+                    randomId = 0,
+                    replyTo = replyMessage?.id
+                ) { message.id = it }
+            }
+            Action.EDIT -> {
+                val message = attachmentController.message.value ?: return
+                val messageText = binding.message.text.toString().trim()
+
+                attachmentController.message.value = null
+
+                viewModel.editMessage(
+                    originalMessage = message,
+                    peerId = conversation.id,
+                    messageId = message.id,
+                    message = messageText,
+                    attachments = message.attachments
+                )
+            }
+            Action.DELETE -> attachmentController.message.value?.let {
+                showDeleteMessageDialog(it)
+            }
+        }
     }
 
-
-    private fun performAction() {
-        if (action.value == Action.RECORD) {
-
-        } else if (action.value == Action.SEND) {
-            val messageText = binding.message.text.toString().trim()
-            if (messageText.isBlank()) return
-
-            val date = System.currentTimeMillis()
-
-            var message = VkMessage(
-                id = -1,
-                text = messageText,
-                isOut = true,
-                peerId = conversation.id,
-                fromId = UserConfig.userId,
-                date = (date / 1000).toInt(),
-                randomId = 0
-            )
-
-            adapter.add(message)
-            adapter.notifyDataSetChanged()
-            binding.recyclerView.smoothScrollToPosition(adapter.lastPosition)
-            binding.message.clear()
-
-            viewModel.sendMessage(
-                peerId = conversation.id,
-                message = messageText,
-                randomId = 0
-            ) { message = message.copyMessage(id = it) }
-        }
-    }
-
-    override fun onEvent(event: VKEvent) {
+    override fun onEvent(event: VkEvent) {
         super.onEvent(event)
 
         when (event) {
-            is MessagesMarkAsImportant -> markMessagesAsImportant(event)
-            is MessagesLoaded -> refreshMessages(event)
             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)
         }
     }
 
@@ -283,17 +397,21 @@ class MessagesHistoryFragment :
 
     private fun markMessagesAsImportant(event: MessagesMarkAsImportant) {
         var changed = false
+        val positions = mutableListOf<Int>()
+
         for (i in adapter.values.indices) {
             val message = adapter.values[i]
+            message.important = event.important
             if (event.messagesIds.contains(message.id)) {
                 if (!changed) changed = true
-                adapter.values[i] = message.copyMessage(
-                    important = event.important
-                )
+
+                positions.add(i)
+
+                adapter.values[i] = message
             }
         }
 
-        if (changed) adapter.notifyDataSetChanged()
+        if (changed) positions.forEach { adapter.notifyItemChanged(it) }
     }
 
     private fun refreshMessages(event: MessagesLoaded) {
@@ -315,30 +433,235 @@ class MessagesHistoryFragment :
     }
 
     private fun onItemClick(position: Int) {
+        showOptionsDialog(position)
+    }
+
+    private fun onItemLongClick(position: Int) = true
+
+    private fun onAvatarLongClickListener(position: Int) {
+        val message = adapter.values[position]
+
+        val messageUser = VkUtils.getMessageUser(message, adapter.profiles)
+        val messageGroup = VkUtils.getMessageGroup(message, adapter.groups)
+
+        val title = VkUtils.getMessageTitle(message, messageUser, messageGroup)
+        Toast.makeText(requireContext(), title, Toast.LENGTH_SHORT).show()
+    }
+
+    private fun showOptionsDialog(position: Int) {
         val message = adapter.values[position]
         if (message.action != null) return
 
-        val important = if (message.important) "Unmark as important" else "Mark as important"
+        val time = getString(
+            R.string.time_format,
+            SimpleDateFormat(
+                "dd.MM.yyyy, HH:mm:ss",
+                Locale.getDefault()
+            ).format(message.date * 1000L)
+        )
 
-        val params = arrayOf(important)
+        val important = getString(
+            if (message.important) R.string.message_context_action_unmark_as_important
+            else R.string.message_context_action_mark_as_important
+        )
 
-        val dialog = MaterialAlertDialogBuilder(requireContext())
-            .setItems(params) { _, which ->
-                if (which == 0) {
-                    viewModel.markAsImportant(
+        val reply = getString(R.string.message_context_action_reply)
+
+        val isMessageAlreadyPinned = message.id == conversation.pinnedMessage?.id
+
+        val pin = getString(
+            if (isMessageAlreadyPinned) R.string.message_context_action_unpin
+            else R.string.message_context_action_pin
+        )
+
+        val edit = getString(R.string.message_context_action_edit)
+
+        val delete = getString(R.string.message_context_action_delete)
+
+        val params = mutableListOf(
+            important, reply
+        )
+
+        if (conversation.canChangePin) {
+            params += pin
+        }
+
+        if (message.canEdit()) {
+            params += edit
+        }
+
+        params += delete
+
+        val arrayParams = params.toTypedArray()
+
+        MaterialAlertDialogBuilder(requireContext())
+            .setTitle(time)
+            .setItems(arrayParams) { _, which ->
+                when (params[which]) {
+                    important -> viewModel.markAsImportant(
                         messagesIds = listOf(message.id),
                         important = !message.important
                     )
+                    reply -> {
+                        if (attachmentController.message.value != message)
+                            attachmentController.message.value = message
+                    }
+                    pin ->
+                        showPinMessageDialog(
+                            peerId = conversation.id,
+                            messageId = message.id,
+                            pin = !isMessageAlreadyPinned
+                        )
+                    edit -> {
+                        attachmentController.isEditing = true
+
+                        if (attachmentController.message.value != message)
+                            attachmentController.message.value = message
+                    }
+                    delete -> showDeleteMessageDialog(message)
+                }
+            }.show()
+    }
+
+    private fun showPinMessageDialog(
+        peerId: Int,
+        messageId: Int?,
+        pin: Boolean
+    ) {
+        MaterialAlertDialogBuilder(requireContext())
+            .setTitle(
+                if (pin) R.string.confirm_pin_message
+                else R.string.confirm_unpin_message
+            )
+            .setPositiveButton(
+                if (pin) R.string.action_pin
+                else R.string.action_unpin
+            ) { _, _ ->
+                viewModel.pinMessage(
+                    peerId = peerId,
+                    messageId = messageId,
+                    pin = pin
+                )
+            }
+            .setNegativeButton(android.R.string.cancel, null)
+            .show()
+    }
+
+    private fun showDeleteMessageDialog(message: VkMessage) {
+        val binding = DialogMessageDeleteBinding.inflate(layoutInflater, null, false)
+
+        binding.check.setText(
+            if (message.isOut) R.string.message_delete_for_all
+            else R.string.message_mark_as_spam
+        )
+
+        binding.check.isEnabled =
+            (conversation.id != UserConfig.userId) && (!message.isOut || message.canEdit())
+
+        if (conversation.id == UserConfig.userId) binding.check.isChecked = true
+
+        MaterialAlertDialogBuilder(requireContext())
+            .setTitle(R.string.confirm_delete_message)
+            .setView(binding.root)
+            .setPositiveButton(R.string.action_delete) { _, _ ->
+                attachmentController.message.value = null
+
+                viewModel.deleteMessage(
+                    peerId = conversation.id,
+                    messagesIds = listOf(message.id),
+                    isSpam = if (message.isOut) null else binding.check.isChecked,
+                    deleteForAll = if (!binding.check.isEnabled) null else binding.check.isChecked
+                )
+            }
+            .setNegativeButton(android.R.string.cancel, null)
+            .show()
+    }
+
+    private fun deleteMessages(event: MessagesDelete) {
+        adapter.removeMessagesByIds(event.messagesIds).let {
+            it.forEach { index -> adapter.notifyItemRemoved(index) }
+        }
+    }
+
+    private fun editMessage(event: MessagesEdit) {
+        adapter.searchMessageIndex(event.message.id)?.let { index ->
+            adapter.values[index] = event.message
+            adapter.notifyItemChanged(index)
+        }
+    }
+
+    private inner class AttachmentPanelController {
+        val isPanelVisible = MutableLiveData(false)
+        val message = MutableLiveData<VkMessage?>()
+
+        var isEditing = false
+
+        fun init(): AttachmentPanelController {
+            message.observe(viewLifecycleOwner) { value ->
+                if (value != null) {
+                    applyMessage(value)
+                } else {
+                    clearMessage()
                 }
             }
 
-        dialog.show()
+            message.value = null
+            return this
+        }
 
-    }
+        private fun applyMessage(message: VkMessage) {
+            showPanel()
 
-    private fun onItemLongClick(position: Int): Boolean {
+            val title = when {
+                message.isGroup() && message.group.value != null -> message.group.value?.name
+                message.isUser() && message.user.value != null -> message.user.value?.fullName
+                else -> null
+            }
+
+            binding.replyMessageTitle.text = title
+            binding.replyMessageText.text = message.text ?: "[no_message]"
+
+            if (isEditing) {
+                binding.message.setText(message.text ?: "[no_message]")
+            }
+        }
+
+        private fun clearMessage() {
+            hidePanel()
+
+            binding.replyMessageTitle.clear()
+            binding.replyMessageText.clear()
+
+            if (isEditing) {
+                isEditing = false
+                binding.message.clear()
+            }
+        }
+
+        private fun showPanel(duration: Long = 250) {
+            if (attachmentController.isPanelVisible.value == false)
+                attachmentController.isPanelVisible.value = true
+
+            binding.attachmentPanel.animate()
+                .translationY(0f)
+                .alpha(1f)
+                .setDuration(duration)
+                .withStartAction { binding.attachmentPanel.isVisible = true }
+                .start()
+        }
+
+        private fun hidePanel(duration: Long = 250) {
+            if (attachmentController.isPanelVisible.value == true)
+                attachmentController.isPanelVisible.value = false
+
+            binding.attachmentPanel.animate()
+                .alpha(0f)
+                .translationY(50f)
+                .setDuration(duration)
+                .withEndAction { binding.attachmentPanel.isVisible = false }
+                .start()
+        }
 
-        return true
     }
 
 }

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

@@ -6,33 +6,29 @@ 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.model.request.MessagesGetHistoryRequest
-import com.meloda.fast.api.model.request.MessagesMarkAsImportantRequest
-import com.meloda.fast.api.model.request.MessagesSendRequest
-import com.meloda.fast.api.network.datasource.MessagesDataSource
+import com.meloda.fast.api.model.attachments.VkAttachment
+import com.meloda.fast.api.network.messages.*
 import com.meloda.fast.base.viewmodel.BaseViewModel
-import com.meloda.fast.base.viewmodel.StartProgressEvent
-import com.meloda.fast.base.viewmodel.StopProgressEvent
-import com.meloda.fast.base.viewmodel.VKEvent
+import com.meloda.fast.base.viewmodel.VkEvent
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.launch
 import javax.inject.Inject
 
 @HiltViewModel
 class MessagesHistoryViewModel @Inject constructor(
-    private val dataSource: MessagesDataSource
+    private val messages: MessagesDataSource
 ) : BaseViewModel() {
 
     fun loadHistory(
         peerId: Int
     ) = viewModelScope.launch {
         makeJob({
-            dataSource.getHistory(
+            messages.getHistory(
                 MessagesGetHistoryRequest(
                     count = 30,
                     peerId = peerId,
                     extended = true,
-                    fields = "${VKConstants.USER_FIELDS},${VKConstants.GROUP_FIELDS}"
+                    fields = VKConstants.ALL_FIELDS
                 )
             )
         },
@@ -53,18 +49,18 @@ class MessagesHistoryViewModel @Inject constructor(
                     }
                 }
 
-                val messages = hashMapOf<Int, VkMessage>()
+                val hashMessages = hashMapOf<Int, VkMessage>()
                 response.items.forEach { baseMessage ->
-                    baseMessage.asVkMessage().let { message -> messages[message.id] = message }
+                    baseMessage.asVkMessage().let { message -> hashMessages[message.id] = message }
                 }
 
-                dataSource.storeMessages(messages.values.toList())
+                messages.store(hashMessages.values.toList())
 
                 val conversations = hashMapOf<Int, VkConversation>()
                 response.conversations?.let { baseConversations ->
                     baseConversations.forEach { baseConversation ->
                         baseConversation.asVkConversation(
-                            messages[baseConversation.last_message_id]
+                            hashMessages[baseConversation.last_message_id]
                         ).let { conversation -> conversations[conversation.id] = conversation }
                     }
                 }
@@ -75,41 +71,33 @@ class MessagesHistoryViewModel @Inject constructor(
                         profiles = profiles,
                         groups = groups,
                         conversations = conversations,
-                        messages = messages.values.toList()
+                        messages = hashMessages.values.toList()
                     )
                 )
-            },
-            onError = {
-                val throwable = it
-                throw it
-            },
-            onStart = { sendEvent(StartProgressEvent) },
-            onEnd = { sendEvent(StopProgressEvent) })
+            })
     }
 
     fun sendMessage(
         peerId: Int,
         message: String? = null,
         randomId: Int = 0,
+        replyTo: Int? = null,
         setId: ((messageId: Int) -> Unit)? = null
     ) = viewModelScope.launch {
         makeJob(
             {
-                dataSource.send(
+                messages.send(
                     MessagesSendRequest(
                         peerId = peerId,
                         randomId = randomId,
-                        message = message
+                        message = message,
+                        replyTo = replyTo
                     )
                 )
             },
             onAnswer = {
                 val response = it.response ?: return@makeJob
                 setId?.invoke(response)
-            },
-            onError = {
-                val throwable = it
-                val i = 0
             })
     }
 
@@ -118,7 +106,7 @@ class MessagesHistoryViewModel @Inject constructor(
         important: Boolean
     ) = viewModelScope.launch {
         makeJob({
-            dataSource.markAsImportant(
+            messages.markAsImportant(
                 MessagesMarkAsImportantRequest(
                     messagesIds = messagesIds,
                     important = important
@@ -133,13 +121,84 @@ class MessagesHistoryViewModel @Inject constructor(
                         important = important
                     )
                 )
-            },
-            onError = {
-                val throwable = it
-                val i = 0
             })
     }
 
+    fun pinMessage(
+        peerId: Int,
+        messageId: Int? = null,
+        conversationMessageId: Int? = null,
+        pin: Boolean
+    ) = viewModelScope.launch {
+        if (pin) {
+            makeJob({
+                messages.pin(
+                    MessagesPinMessageRequest(
+                        peerId = peerId,
+                        messageId = messageId,
+                        conversationMessageId = conversationMessageId
+                    )
+                )
+            },
+                onAnswer = {
+                    val response = it.response ?: return@makeJob
+                    sendEvent(MessagesPin(response.asVkMessage()))
+                }
+            )
+        } else {
+            makeJob({ messages.unpin(MessagesUnPinMessageRequest(peerId = peerId)) },
+                onAnswer = {
+                    println("Fast::MessagesHistoryViewModel::unPin::Response::${it.response}")
+                    sendEvent(MessagesUnpin)
+                }
+            )
+        }
+    }
+
+    fun deleteMessage(
+        peerId: Int,
+        messagesIds: List<Int>? = null,
+        conversationsMessagesIds: List<Int>? = null,
+        isSpam: Boolean? = null,
+        deleteForAll: Boolean? = null
+    ) = viewModelScope.launch {
+        makeJob({
+            messages.delete(
+                MessagesDeleteRequest(
+                    peerId = peerId,
+                    messagesIds = messagesIds,
+                    conversationsMessagesIds = conversationsMessagesIds,
+                    isSpam = isSpam,
+                    deleteForAll = deleteForAll
+                )
+            )
+        }, onAnswer = { sendEvent(MessagesDelete(messagesIds = messagesIds ?: listOf())) })
+    }
+
+    fun editMessage(
+        originalMessage: VkMessage,
+        peerId: Int,
+        messageId: Int,
+        message: String? = null,
+        attachments: List<VkAttachment>? = null
+    ) = viewModelScope.launch {
+        makeJob(
+            {
+                messages.edit(
+                    MessagesEditRequest(
+                        peerId = peerId,
+                        messageId = messageId,
+                        message = message,
+                        attachments = attachments
+                    )
+                )
+            },
+            onAnswer = {
+                originalMessage.text = message
+                sendEvent(MessagesEdit(originalMessage))
+            }
+        )
+    }
 }
 
 data class MessagesLoaded(
@@ -148,9 +207,23 @@ data class MessagesLoaded(
     val messages: List<VkMessage>,
     val profiles: HashMap<Int, VkUser>,
     val groups: HashMap<Int, VkGroup>
-) : VKEvent()
+) : VkEvent()
 
 data class MessagesMarkAsImportant(
     val messagesIds: List<Int>,
     val important: Boolean
-) : VKEvent()
+) : VkEvent()
+
+data class MessagesPin(
+    val message: VkMessage
+) : VkEvent()
+
+object MessagesUnpin : VkEvent()
+
+data class MessagesDelete(
+    val messagesIds: List<Int>
+) : VkEvent()
+
+data class MessagesEdit(
+    val message: VkMessage
+) : VkEvent()

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

@@ -1,6 +1,7 @@
 package com.meloda.fast.screens.messages
 
 import android.content.Context
+import android.graphics.drawable.ColorDrawable
 import android.util.Log
 import android.view.View
 import android.widget.ImageView
@@ -8,9 +9,7 @@ import android.widget.Space
 import android.widget.TextView
 import androidx.appcompat.widget.LinearLayoutCompat
 import androidx.core.content.ContextCompat
-import androidx.core.view.isInvisible
 import androidx.core.view.isVisible
-import androidx.core.view.setPadding
 import coil.load
 import com.meloda.fast.R
 import com.meloda.fast.api.VkUtils
@@ -20,7 +19,6 @@ 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.util.AndroidUtils
 import com.meloda.fast.widget.BoundedLinearLayout
 import java.text.SimpleDateFormat
 import java.util.*
@@ -30,19 +28,21 @@ import kotlin.math.roundToInt
 class MessagesPreparator constructor(
     private val context: Context,
 
+    private val root: View? = null,
+
     private val conversation: VkConversation,
     private val message: VkMessage,
     private val prevMessage: VkMessage? = null,
     private val nextMessage: VkMessage? = null,
 
     private val bubble: BoundedLinearLayout? = null,
-    private val bubbleStroke: View? = null,
     private val text: TextView? = null,
     private val avatar: ImageView? = null,
     private val title: TextView? = null,
     private val spacer: Space? = null,
     private val unread: ImageView? = null,
     private val time: TextView? = null,
+    private val textContainer: LinearLayoutCompat? = null,
     private val attachmentContainer: LinearLayoutCompat? = null,
     private val attachmentSpacer: Space? = null,
 
@@ -65,51 +65,129 @@ class MessagesPreparator constructor(
         ContextCompat.getDrawable(context, R.drawable.ic_message_out_background)
     private val backgroundMiddleOut =
         ContextCompat.getDrawable(context, R.drawable.ic_message_out_background_middle)
-    private val backgroundStrokeOut =
-        ContextCompat.getDrawable(context, R.drawable.ic_message_out_background_stroke)
-    private val backgroundMiddleStrokeOut =
-        ContextCompat.getDrawable(context, R.drawable.ic_message_out_background_middle_stroke)
+
+    private val rootHighlightedColor =
+        ContextCompat.getColor(context, R.color.n2_100)
+
+    private var photoClickListener: ((url: String) -> Unit)? = null
+
+    fun setPhotoClickListener(unit: ((url: String) -> Unit)?): MessagesPreparator {
+        this.photoClickListener = unit
+        return this
+    }
 
     fun prepare() {
-        val messageUser: VkUser? = if (message.isUser()) {
-            profiles[message.fromId]
-        } else null
+        val messageUser = VkUtils.getMessageUser(message, profiles)
+        val messageGroup = VkUtils.getMessageGroup(message, groups)
 
-        val messageGroup: VkGroup? = if (message.isGroup()) {
-            groups[message.fromId]
-        } else null
+        prepareRootBackground()
 
+        prepareTime()
+
+        prepareUnreadIndicator()
+
+        prepareSpacer()
+
+        prepareAttachments()
+
+        prepareAttachmentsSpacer()
+
+        prepareBubbleBackground()
+
+        prepareText()
+
+        prepareAvatar(
+            messageUser = messageUser,
+            messageGroup = messageGroup
+        )
+
+        if (message.isPeerChat()) {
+            val prevSenderDiff = VkUtils.isPreviousMessageFromDifferentSender(prevMessage, message)
+            val nextSenderDiff = VkUtils.isPreviousMessageFromDifferentSender(message, nextMessage)
+            val fiveMinAgo = VkUtils.isPreviousMessageSentFiveMinutesAgo(prevMessage, message)
+
+            val change = (prevMessage?.date ?: 0) - message.date
+
+            Log.d(
+                "Fast::MessagesPreparator",
+                "text: ${message.text}; prevText: ${prevMessage?.text}; time change: $change; fromDiffSender: $prevSenderDiff; fiveMinAgo: $fiveMinAgo; "
+            )
+
+            title?.isVisible = prevSenderDiff || fiveMinAgo
+
+            avatar?.visibility =
+                if (nextSenderDiff
+                    || (fiveMinAgo && prevSenderDiff)
+                    || !prevSenderDiff
+                    || nextMessage == null
+                ) View.VISIBLE else View.INVISIBLE
+        } else {
+            title?.isVisible = false
+            avatar?.isVisible = false
+        }
+
+        if (title != null) {
+            val titleString = when {
+                message.isUser() && messageUser != null -> messageUser.firstName
+                message.isGroup() && messageGroup != null -> messageGroup.name
+                else -> null
+            }
+
+            title.text = titleString
+        }
+    }
+
+    private fun prepareRootBackground() {
+        if (root != null) {
+            root.background =
+                if (message.isSelected) ColorDrawable(rootHighlightedColor)
+                else null
+        }
+    }
+
+    private fun prepareTime() {
+        time?.text = SimpleDateFormat("HH:mm", Locale.getDefault()).format(message.date * 1000L)
+    }
+
+    private fun prepareUnreadIndicator() {
         if (unread != null) {
             unread.isVisible = message.isRead(conversation)
         }
+    }
 
-        if (bubble != null && time != null) {
-            bubble.setOnClickListener { time.isVisible = !time.isVisible }
-        }
+    private fun prepareSpacer() {
+        spacer?.isVisible = VkUtils.isPreviousMessageSentFiveMinutesAgo(prevMessage, message)
+    }
 
-        if (attachmentContainer != null) {
+    private fun prepareAttachments() {
+        if (attachmentContainer != null && textContainer != null) {
             if (message.attachments.isNullOrEmpty()) {
                 attachmentContainer.isVisible = false
                 attachmentContainer.removeAllViews()
             } else {
                 attachmentContainer.isVisible = true
+
                 AttachmentInflater(
                     context = context,
                     container = attachmentContainer,
+                    textContainer = textContainer,
                     message = message,
                     groups = groups,
                     profiles = profiles
-                ).inflate()
+                )
+                    .setPhotoClickListener(photoClickListener)
+                    .inflate()
             }
         }
+    }
 
+    private fun prepareAttachmentsSpacer() {
+        attachmentSpacer?.isVisible =
+            !message.attachments.isNullOrEmpty() && text?.isVisible == true
+    }
+
+    private fun prepareBubbleBackground() {
         if (bubble != null) {
-            val padding =
-                AndroidUtils.px(if (!message.attachments.isNullOrEmpty()) 4 else 15).roundToInt()
-
-            bubble.setPadding(padding)
-
-
             // TODO: 9/23/2021 use external function
             bubble.background =
                 if (!message.attachments.isNullOrEmpty() && message.attachments!![0] is VkSticker) null
@@ -125,82 +203,29 @@ class MessagesPreparator constructor(
                     }
                 }
         }
+    }
 
-        // TODO: 9/23/2021 use external function
-        bubbleStroke?.background =
-            if (bubble?.background == null) null else {
-                if (prevMessage == null || prevMessage.fromId != message.fromId) backgroundStrokeOut
-                else if (prevMessage.fromId == message.fromId && message.date - prevMessage.date < 60) backgroundMiddleStrokeOut
-                else backgroundStrokeOut
-            }
-
+    private fun prepareText() {
         if (bubble != null && text != null) {
             if (message.text == null) {
                 text.isVisible = false
                 bubble.isVisible = !message.attachments.isNullOrEmpty()
-                bubbleStroke?.isVisible = bubble.isVisible
             } else {
                 text.isVisible = true
                 bubble.isVisible = true
-                bubbleStroke?.isVisible = true
-                text.text = VkUtils.prepareMessageText(message.text)
+                text.text = VkUtils.prepareMessageText(message.text ?: "")
             }
         }
+    }
 
+    private fun prepareAvatar(
+        messageUser: VkUser? = null,
+        messageGroup: VkGroup? = null
+    ) {
         if (avatar != null) {
-            val avatarUrl = when {
-                message.isUser() && messageUser != null && !messageUser.photo200.isNullOrBlank() -> messageUser.photo200
-                message.isGroup() && messageGroup != null && !messageGroup.photo200.isNullOrBlank() -> messageGroup.photo200
-                else -> null
-            }
+            val avatarUrl = VkUtils.getMessageAvatar(message, messageUser, messageGroup)
 
             avatar.load(avatarUrl) { crossfade(100) }
         }
-
-        spacer?.isVisible = VkUtils.isPreviousMessageSentFiveMinutesAgo(prevMessage, message)
-
-        if (message.isPeerChat()) {
-
-            val fromDiffSender = VkUtils.isPreviousMessageFromDifferentSender(prevMessage, message)
-            val fiveMinAgo = VkUtils.isPreviousMessageSentFiveMinutesAgo(prevMessage, message)
-
-            val change = (prevMessage?.date ?: 0) - message.date
-
-            Log.d(
-                "Fast::MessagesPreparator",
-                "text: ${message.text}; prevText: ${prevMessage?.text}; time change: $change; fromDiffSender: $fromDiffSender; fiveMinAgo: $fiveMinAgo; "
-            )
-
-            title?.isVisible = fromDiffSender || fiveMinAgo
-
-            avatar?.isInvisible = fromDiffSender && fiveMinAgo
-        } else {
-            title?.isVisible = false
-            avatar?.isVisible = false
-        }
-
-        if (title != null) {
-            val titleString = when {
-                message.isUser() && messageUser != null -> messageUser.firstName
-                message.isGroup() && messageGroup != null -> messageGroup.name
-                else -> null
-            }
-
-            title.text = titleString
-            title.measure(0, 0)
-
-            if (bubble != null) {
-                if (title.isVisible) {
-                    bubble.minimumWidth = title.measuredWidth + 60
-                } else {
-                    bubble.minimumWidth = 0
-                }
-            }
-        }
-
-        attachmentSpacer?.isVisible =
-            !message.attachments.isNullOrEmpty() && text?.isVisible == true
-
-        time?.text = SimpleDateFormat("HH:mm", Locale.getDefault()).format(message.date * 1000L)
     }
 }

app/src/main/kotlin/com/meloda/fast/screens/photos/PhotoViewFragment.kt

@@ -0,0 +1,48 @@
+package com.meloda.fast.screens.photos
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageView
+import androidx.fragment.app.viewModels
+import com.meloda.fast.base.BaseViewModelFragment
+import dagger.hilt.android.AndroidEntryPoint
+
+@AndroidEntryPoint
+class PhotoViewFragment : BaseViewModelFragment<PhotoViewViewModel>() {
+
+    override val viewModel: PhotoViewViewModel by viewModels()
+
+//    private val photosList: MutableList<VkPhoto> = mutableListOf()
+
+    private var photoLink: String? = null
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        photoLink = requireArguments().getString("photoLink")
+
+//        val list: List<*>? = Gson().fromJson(
+//            requireArguments().getString("photosList"),
+//            List::class.java
+//        )
+//
+//        list?.forEach { if (it is VkPhoto) photosList.add(it) }
+    }
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        return ImageView(requireContext())
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        photoLink?.let { viewModel.loadImageFromUrl(it, requireView() as ImageView) }
+    }
+
+}

app/src/main/kotlin/com/meloda/fast/screens/photos/PhotoViewViewModel.kt

@@ -0,0 +1,22 @@
+package com.meloda.fast.screens.photos
+
+import android.widget.ImageView
+import androidx.lifecycle.viewModelScope
+import coil.load
+import com.meloda.fast.base.viewmodel.BaseViewModel
+import kotlinx.coroutines.launch
+
+class PhotoViewViewModel : BaseViewModel() {
+
+    fun loadImageFromUrl(
+        url: String,
+        imageView: ImageView
+    ) = viewModelScope.launch {
+        imageView.load(url)
+    }
+
+    fun saveImageToLocalStorage(url: String) = viewModelScope.launch {
+        TODO("Not implemented")
+    }
+
+}

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

@@ -1,9 +1,9 @@
 package com.meloda.fast.service
 
 import android.util.Log
-import com.meloda.fast.api.model.request.MessagesGetLongPollServerRequest
-import com.meloda.fast.api.network.datasource.MessagesDataSource
-import com.meloda.fast.api.network.repo.LongPollRepo
+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

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

@@ -1,59 +0,0 @@
-package com.meloda.fast.util
-
-import java.util.stream.Collectors
-
-object ArrayUtils {
-
-    @SafeVarargs
-    fun <T> asString(vararg array: T): String {
-        if (array.isEmpty()) {
-            return ""
-        }
-
-        val builder = StringBuilder(array.size * 12)
-        builder.append(array[0])
-        for (i in 1 until array.size) {
-            builder.append(',')
-            builder.append(array[i])
-        }
-        return builder.toString()
-    }
-
-    fun asString(array: IntArray): String {
-        if (array.isEmpty()) {
-            return ""
-        }
-
-        val builder = StringBuilder(array.size * 12)
-        builder.append(array[0])
-        for (i in 1 until array.size) {
-            builder.append(',')
-            builder.append(array[i])
-        }
-        return builder.toString()
-    }
-
-    fun <T> asString(arrayList: ArrayList<T>): String {
-        return ArrayList<String>().apply {
-            arrayList.forEach { add(it.toString()) }
-        }.stream().collect(Collectors.joining(","))
-    }
-
-    fun <T> asString(list: List<T>): String = asString(list.asArrayList())
-
-    fun <T> cut(arrayList: ArrayList<T>, offset: Int, count: Int): ArrayList<T> {
-        if (arrayList.isEmpty()) return arrayListOf()
-
-        var lastPosition = offset + count
-        if (lastPosition > arrayList.size) lastPosition = arrayList.size
-
-        return ArrayList(arrayList.subList(offset, lastPosition))
-    }
-
-    fun ByteArray?.isNullOrEmpty() = this == null || this.isEmpty()
-
-    fun <E> List<E>.asArrayList(): ArrayList<E> {
-        return ArrayList(this)
-    }
-
-}

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

@@ -1,30 +0,0 @@
-package com.meloda.fast.util
-
-import android.content.Context
-import android.graphics.Color
-import androidx.annotation.ColorInt
-import com.meloda.fast.R
-
-object ColorUtils {
-
-    @ColorInt
-    fun getColorAccent(context: Context): Int {
-        return AndroidUtils.getThemeAttrColor(context, R.attr.colorAccent)
-    }
-
-    @ColorInt
-    fun getColorPrimary(context: Context): Int {
-        return AndroidUtils.getThemeAttrColor(context, R.attr.colorPrimary)
-    }
-
-    @JvmOverloads
-    fun darkenColor(color: Int, darkFactor: Float = 0.75f): Int {
-        var newColor = color
-        val hsv = FloatArray(3)
-        Color.colorToHSV(newColor, hsv)
-        hsv[2] *= darkFactor
-        newColor = Color.HSVToColor(hsv)
-        return newColor
-    }
-
-}

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

@@ -1,55 +0,0 @@
-package com.meloda.fast.util
-
-import android.graphics.Bitmap
-import android.graphics.drawable.Drawable
-import android.widget.ImageView
-
-object ImageUtils {
-
-    fun loadImage(image: String, imageView: ImageView, placeholder: Drawable?) {
-        if (image.isEmpty()) return
-
-//        if (imageView is SimpleDraweeView) {
-//            imageView.setImageURI(image)
-//            return
-//        }
-//
-//        val picasso = Picasso.get()
-//            .load(image)
-//            .priority(Picasso.Priority.LOW)
-
-//        if (placeholder != null) picasso.placeholder(placeholder)
-//
-//        picasso.into(imageView)
-    }
-
-    fun loadImage(image: String?, listener: OnLoadListener?) {
-        if (image.isNullOrEmpty()) return
-
-//        val picasso = Picasso.get()
-//            .load(image)
-//            .priority(Picasso.Priority.LOW)
-//
-//        val target = object : Target {
-//            override fun onPrepareLoad(placeHolderDrawable: Drawable?) {
-//
-//            }
-//
-//            override fun onBitmapFailed(e: Exception, errorDrawable: Drawable?) {
-//                listener?.onError(e)
-//            }
-//
-//            override fun onBitmapLoaded(bitmap: Bitmap, from: Picasso.LoadedFrom) {
-//                listener?.onLoad(bitmap)
-//            }
-//        }
-
-//        picasso.into(target)
-    }
-
-
-    interface OnLoadListener {
-        fun onLoad(bitmap: Bitmap)
-        fun onError(e: Exception)
-    }
-}

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

@@ -1,15 +0,0 @@
-package com.meloda.fast.util
-
-object TextUtils {
-
-    fun getFirstLetterFromString(string: String): String {
-        for (i in string.indices) {
-            val char = string[i]
-
-            if (char.isLetter()) return char.toString()
-        }
-
-        return ""
-    }
-
-}

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

@@ -7,6 +7,8 @@ import java.util.*
 
 object TimeUtils {
 
+    const val ONE_DAY_IN_SECONDS = 86400
+
     fun removeTime(date: Date): Long {
         return Calendar.getInstance().apply {
             time = date

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

@@ -1,49 +0,0 @@
-package com.meloda.fast.util
-
-import android.content.Context
-import com.meloda.fast.util.ArrayUtils.isNullOrEmpty
-import com.meloda.fast.R
-import com.meloda.fast.io.BytesOutputStream
-import java.io.ByteArrayInputStream
-import java.io.IOException
-import java.io.ObjectInputStream
-import java.io.ObjectOutputStream
-
-object Utils {
-
-    fun getLocalizedThrowable(context: Context, t: Throwable): String {
-        return context.getString(R.string.error, t.message.toString())
-    }
-
-    fun serialize(source: Any?): ByteArray? {
-        try {
-            val bos = BytesOutputStream()
-            val out = ObjectOutputStream(bos)
-            out.writeObject(source)
-            out.close()
-            return bos.byteArray
-        } catch (e: IOException) {
-            e.printStackTrace()
-        }
-        return null
-    }
-
-    fun deserialize(source: ByteArray?): Any? {
-        if (source.isNullOrEmpty()) {
-            return null
-        }
-
-        try {
-            val bis = ByteArrayInputStream(source)
-            val `in` = ObjectInputStream(bis)
-            val o = `in`.readObject()
-            `in`.close()
-            return o
-        } catch (e: Exception) {
-            e.printStackTrace()
-        }
-        return null
-    }
-
-
-}

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

@@ -10,12 +10,11 @@ import android.widget.TextView
 import androidx.annotation.ColorInt
 import androidx.annotation.DrawableRes
 import androidx.annotation.StringRes
+import androidx.appcompat.content.res.AppCompatResources
 import androidx.core.view.isVisible
-import com.meloda.fast.extensions.ContextExtensions.drawable
-import com.meloda.fast.extensions.DrawableExtensions.tint
-import com.meloda.fast.extensions.FloatExtensions.int
 import com.meloda.fast.R
 import com.meloda.fast.util.AndroidUtils
+import kotlin.math.roundToInt
 
 @Suppress("UNCHECKED_CAST")
 class NoItemsView @JvmOverloads constructor(
@@ -44,7 +43,7 @@ class NoItemsView @JvmOverloads constructor(
     private fun create() {
         val a = context.obtainStyledAttributes(attrs, R.styleable.NoItemsView)
 
-        minimumWidth = AndroidUtils.px(256).int()
+        minimumWidth = AndroidUtils.px(256).roundToInt()
         minimumHeight = minimumWidth
 
         orientation = VERTICAL
@@ -53,8 +52,8 @@ class NoItemsView @JvmOverloads constructor(
         noItemsPicture = ImageView(context)
 
         val params = imageViewParams
-        params.height = AndroidUtils.px(64).int()
-        params.width = AndroidUtils.px(64).int()
+        params.height = AndroidUtils.px(64).roundToInt()
+        params.width = AndroidUtils.px(64).roundToInt()
 
         noItemsPicture.layoutParams = params
 
@@ -73,10 +72,10 @@ class NoItemsView @JvmOverloads constructor(
         noItemsTextView = TextView(context)
 
         val textParams = textViewParams
-        textParams.width = AndroidUtils.px(256).int()
+        textParams.width = AndroidUtils.px(256).roundToInt()
 
         if (noItemsDrawable != null) {
-            textParams.topMargin = AndroidUtils.px(8).int()
+            textParams.topMargin = AndroidUtils.px(8).roundToInt()
         }
 
         noItemsTextView.layoutParams = textParams
@@ -103,7 +102,7 @@ class NoItemsView @JvmOverloads constructor(
     }
 
     fun setNoItemsImage(@DrawableRes resId: Int) {
-        setNoItemsImage(context.drawable(resId))
+        setNoItemsImage(AppCompatResources.getDrawable(context, resId))
     }
 
     fun setNoItemsImage(drawable: Drawable?) {
@@ -111,7 +110,7 @@ class NoItemsView @JvmOverloads constructor(
     }
 
     fun setNoItemsImageTint(@ColorInt color: Int) {
-        noItemsPicture.drawable.tint(color)
+        noItemsPicture.drawable?.setTint(color)
     }
 
     fun setNoItemsText(@StringRes resId: Int) {

app/src/main/res/drawable-v21/ic_star_border.xml

@@ -1,5 +1,10 @@
-<vector android:height="24dp" android:tint="#FFFFFF"
-    android:viewportHeight="24.0" android:viewportWidth="24.0"
-    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
-    <path android:fillColor="#FF000000" android:pathData="M22,9.24l-7.19,-0.62L12,2 9.19,8.63 2,9.24l5.46,4.73L5.82,21 12,17.27 18.18,21l-1.63,-7.03L22,9.24zM12,15.4l-3.76,2.27 1,-4.28 -3.32,-2.88 4.38,-0.38L12,6.1l1.71,4.04 4.38,0.38 -3.32,2.88 1,4.28L12,15.4z"/>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:tint="#FFFFFF"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M22,9.24l-7.19,-0.62L12,2 9.19,8.63 2,9.24l5.46,4.73L5.82,21 12,17.27 18.18,21l-1.63,-7.03L22,9.24zM12,15.4l-3.76,2.27 1,-4.28 -3.32,-2.88 4.38,-0.38L12,6.1l1.71,4.04 4.38,0.38 -3.32,2.88 1,4.28L12,15.4z" />
 </vector>

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

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+
+    <corners
+        android:topLeftRadius="30dp"
+        android:topRightRadius="30dp" />
+
+    <solid android:color="@android:color/white" />
+
+</shape>