From c77ebae57a79d99023f381d6f530ea73d357ebd9 Mon Sep 17 00:00:00 2001
From: Danil Nikolaev <lischenkodev@gmail.com>
Date: Wed, 4 Aug 2021 23:01:22 +0300
Subject: [PATCH] lil update

---
 app/build.gradle.kts                          |   5 +-
 app/src/main/AndroidManifest.xml              |   1 +
 .../main/java/com/meloda/fast/api/VKAuth.kt   |   9 +-
 .../main/java/com/meloda/fast/api/VKRepo.kt   |  12 +-
 .../main/java/com/meloda/fast/api/VKUrls.kt   |   7 ++
 .../meloda/fast/api/model/VKConversation.kt   |  11 +-
 .../java/com/meloda/fast/api/model/VKModel.kt |   3 +-
 .../api/model/response/MessagesResponse.kt    |  13 ++
 .../ResponseMessagesGetConversations.kt       |   6 -
 .../java/com/meloda/fast/api/util/VKUtil.kt   |  92 ++++++++------
 .../com/meloda/fast/base/BaseVMFragment.kt    |   8 +-
 .../meloda/fast/base/adapter/BaseAdapter.kt   |  44 +++----
 .../com/meloda/fast/base/adapter/BaseItem.kt  |   3 +
 .../fast/base/adapter/EmptyHeaderAdapter.kt   |  35 ++++++
 .../com/meloda/fast/base/adapter/Holders.kt   |  11 +-
 .../java/com/meloda/fast/common/AppGlobal.kt  |   6 +
 .../fast/fragment/login/LoginFragment.kt      | 113 ++++++++++--------
 .../com/meloda/fast/fragment/login/LoginVM.kt |  30 +++--
 .../fragment/messages/ConversationsAdapter.kt |  41 +++++++
 .../messages/ConversationsFragment.kt         |  66 +++++++++-
 .../fast/fragment/messages/ConversationsVM.kt |  13 ++
 .../com/meloda/fast/util/KeyboardUtils.kt     |  10 +-
 app/src/main/res/drawable-v21/ic_security.xml |  10 ++
 app/src/main/res/layout/dialog_captcha.xml    |  83 +++++++++++++
 .../res/layout/fragment_conversations.xml     |  54 +++++----
 app/src/main/res/layout/fragment_login.xml    |  12 +-
 app/src/main/res/layout/item_conversation.xml |  32 ++---
 app/src/main/res/values/colors.xml            |   2 +-
 app/src/main/res/values/strings.xml           |   4 +-
 app/src/main/res/values/styles.xml            |  14 +++
 app/src/main/res/values/themes.xml            |  17 +--
 build.gradle.kts                              |   2 +-
 gradle/wrapper/gradle-wrapper.properties      |   2 +-
 33 files changed, 548 insertions(+), 223 deletions(-)
 create mode 100644 app/src/main/java/com/meloda/fast/api/VKUrls.kt
 create mode 100644 app/src/main/java/com/meloda/fast/api/model/response/MessagesResponse.kt
 delete mode 100644 app/src/main/java/com/meloda/fast/api/model/response/ResponseMessagesGetConversations.kt
 create mode 100644 app/src/main/java/com/meloda/fast/base/adapter/BaseItem.kt
 create mode 100644 app/src/main/java/com/meloda/fast/base/adapter/EmptyHeaderAdapter.kt
 create mode 100644 app/src/main/java/com/meloda/fast/fragment/messages/ConversationsAdapter.kt
 create mode 100644 app/src/main/java/com/meloda/fast/fragment/messages/ConversationsVM.kt
 create mode 100644 app/src/main/res/drawable-v21/ic_security.xml
 create mode 100644 app/src/main/res/layout/dialog_captcha.xml

diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 96b3c5be..156673c0 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -4,6 +4,7 @@ plugins {
     id("kotlin-kapt")
     id("androidx.navigation.safeargs.kotlin")
     id("dagger.hilt.android.plugin")
+    id("kotlin-parcelize")
 }
 
 android {
@@ -64,7 +65,7 @@ kapt {
 }
 
 dependencies {
-    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.5.20")
+    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.5.21")
 
     coreLibraryDesugaring("com.android.tools:desugar_jdk_libs:1.1.5")
 
@@ -103,7 +104,7 @@ dependencies {
 
     implementation("com.github.yogacp:android-viewbinding:1.0.2")
 
-    implementation("io.coil-kt:coil:1.2.2")
+    implementation("io.coil-kt:coil:1.3.0")
 
     implementation("com.google.code.gson:gson:2.8.7")
     implementation("org.jsoup:jsoup:1.14.1")
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 6842b223..3529a735 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -12,6 +12,7 @@
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
+        android:testOnly="false"
         android:theme="@style/AppTheme">
         <activity
             android:name=".activity.MainActivity"
diff --git a/app/src/main/java/com/meloda/fast/api/VKAuth.kt b/app/src/main/java/com/meloda/fast/api/VKAuth.kt
index 2d4422dc..89ddb98a 100644
--- a/app/src/main/java/com/meloda/fast/api/VKAuth.kt
+++ b/app/src/main/java/com/meloda/fast/api/VKAuth.kt
@@ -27,14 +27,19 @@ object VKAuth {
 
     const val redirectUrl = "https://oauth.vk.com/blank.html"
 
-    fun getDirectAuthUrl(login: String, password: String, captcha: String = ""): String {
+    fun getDirectAuthUrl(
+        login: String,
+        password: String,
+        captchaSid: String? = null,
+        captchaKey: String? = null
+    ): String {
         return "https://oauth.vk.com/token?grant_type=password&" +
                 "client_id=${VKConstants.VK_APP_ID}&" +
                 "scope=$settings&" +
                 "client_secret=${VKConstants.VK_APP_SECRET}&" +
                 "username=$login&" +
                 "password=$password" +
-                (if (captcha.isBlank()) "" else "&$captcha") +
+                (if (captchaSid == null || captchaKey == null) "" else "&captcha_sid=$captchaSid&captcha_key=$captchaKey") +
                 "&v=${VKApi.API_VERSION}"
 //        return "https://oauth.vk.com/token?grant_type=password&" +
 //                "client_id=2274003&" +
diff --git a/app/src/main/java/com/meloda/fast/api/VKRepo.kt b/app/src/main/java/com/meloda/fast/api/VKRepo.kt
index 168f4352..97ebfc17 100644
--- a/app/src/main/java/com/meloda/fast/api/VKRepo.kt
+++ b/app/src/main/java/com/meloda/fast/api/VKRepo.kt
@@ -1,7 +1,17 @@
 package com.meloda.fast.api
 
+import com.meloda.fast.api.model.response.GetConversationsResponse
+import retrofit2.http.Field
+import retrofit2.http.FormUrlEncoded
+import retrofit2.http.POST
+
 interface VKRepo {
 
-
+    @FormUrlEncoded
+    @POST(VKUrls.getConversations)
+    suspend fun getAllChats(
+        @Field("user_id") chatId: Int,
+        @Field("token") token: String
+    ): Answer<GetConversationsResponse>
 
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/meloda/fast/api/VKUrls.kt b/app/src/main/java/com/meloda/fast/api/VKUrls.kt
new file mode 100644
index 00000000..b00610f3
--- /dev/null
+++ b/app/src/main/java/com/meloda/fast/api/VKUrls.kt
@@ -0,0 +1,7 @@
+package com.meloda.fast.api
+
+object VKUrls {
+
+    const val getConversations = "messages.getConversations"
+
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/meloda/fast/api/model/VKConversation.kt b/app/src/main/java/com/meloda/fast/api/model/VKConversation.kt
index 9f9cb9fb..7867b8de 100644
--- a/app/src/main/java/com/meloda/fast/api/model/VKConversation.kt
+++ b/app/src/main/java/com/meloda/fast/api/model/VKConversation.kt
@@ -39,7 +39,7 @@ class VKConversation() : VKModel(), Cloneable {
     var isNoSound: Boolean = false
 
     var membersCount: Int = 0
-    var title: String = ""
+    var title: String? = null
 
     var pinnedMessage: VKMessage? = null
 
@@ -84,6 +84,7 @@ class VKConversation() : VKModel(), Cloneable {
         o.optJSONObject("chat_settings")?.let {
             membersCount = it.optInt("members_count")
             title = it.optString("title")
+            if (title?.isBlank() == true) title = null
 
             it.optJSONObject("pinned_message")?.let { pinned ->
                 pinnedMessage = VKMessage(pinned)
@@ -109,13 +110,9 @@ class VKConversation() : VKModel(), Cloneable {
 
     fun isGroup() = type == Type.GROUP
 
-    override fun toString(): String {
-        return title
-    }
+    override fun toString() = title ?: ""
 
-    public override fun clone(): VKConversation {
-        return super.clone() as VKConversation
-    }
+    public override fun clone() = super.clone() as VKConversation
 
     enum class Type(val value: String) {
         NULL("null"),
diff --git a/app/src/main/java/com/meloda/fast/api/model/VKModel.kt b/app/src/main/java/com/meloda/fast/api/model/VKModel.kt
index 594cfc2d..e49eef52 100644
--- a/app/src/main/java/com/meloda/fast/api/model/VKModel.kt
+++ b/app/src/main/java/com/meloda/fast/api/model/VKModel.kt
@@ -1,8 +1,9 @@
 package com.meloda.fast.api.model
 
+import com.meloda.fast.base.adapter.BaseItem
 import java.io.Serializable
 
-abstract class VKModel : Serializable {
+abstract class VKModel : BaseItem(), Serializable {
 
     abstract val attachmentType: VKAttachments.Type
 
diff --git a/app/src/main/java/com/meloda/fast/api/model/response/MessagesResponse.kt b/app/src/main/java/com/meloda/fast/api/model/response/MessagesResponse.kt
new file mode 100644
index 00000000..46d10bdf
--- /dev/null
+++ b/app/src/main/java/com/meloda/fast/api/model/response/MessagesResponse.kt
@@ -0,0 +1,13 @@
+package com.meloda.fast.api.model.response
+
+import android.os.Parcelable
+import kotlinx.parcelize.Parcelize
+
+class MessagesResponse(
+    val count: Int
+) {
+}
+
+@Parcelize
+data class GetConversationsResponse(val a: String) : Parcelable
+// TODO: 7/12/2021 use hilt for this like in LIR and make simple conversations' screen
diff --git a/app/src/main/java/com/meloda/fast/api/model/response/ResponseMessagesGetConversations.kt b/app/src/main/java/com/meloda/fast/api/model/response/ResponseMessagesGetConversations.kt
deleted file mode 100644
index f10dc799..00000000
--- a/app/src/main/java/com/meloda/fast/api/model/response/ResponseMessagesGetConversations.kt
+++ /dev/null
@@ -1,6 +0,0 @@
-package com.meloda.fast.api.model.response
-
-class ResponseMessagesGetConversations(
-    val count: Int
-) {
-}
\ No newline at end of file
diff --git a/app/src/main/java/com/meloda/fast/api/util/VKUtil.kt b/app/src/main/java/com/meloda/fast/api/util/VKUtil.kt
index dcefd1c2..09200155 100644
--- a/app/src/main/java/com/meloda/fast/api/util/VKUtil.kt
+++ b/app/src/main/java/com/meloda/fast/api/util/VKUtil.kt
@@ -1,6 +1,7 @@
 package com.meloda.fast.api.util
 
 import androidx.annotation.WorkerThread
+import com.meloda.fast.api.model.*
 import org.json.JSONArray
 import org.json.JSONObject
 import java.text.SimpleDateFormat
@@ -27,9 +28,9 @@ object VKUtil {
     }
 
     fun sortMessagesByDate(
-        values: ArrayList<com.meloda.fast.api.model.VKMessage>,
+        values: ArrayList<VKMessage>,
         firstOnTop: Boolean
-    ): ArrayList<com.meloda.fast.api.model.VKMessage> {
+    ): ArrayList<VKMessage> {
         values.sortWith { m1, m2 ->
             val d1 = m1.date
             val d2 = m2.date
@@ -45,9 +46,9 @@ object VKUtil {
     }
 
     fun sortConversationsByDate(
-        values: ArrayList<com.meloda.fast.api.model.VKConversation>,
+        values: ArrayList<VKConversation>,
         firstOnTop: Boolean
-    ): ArrayList<com.meloda.fast.api.model.VKConversation> {
+    ): ArrayList<VKConversation> {
         values.sortWith { c1, c2 ->
             val d1 = c1.lastMessage.date
             val d2 = c2.lastMessage.date
@@ -121,25 +122,29 @@ object VKUtil {
     }
 
 
-    fun getTitle(conversation: com.meloda.fast.api.model.VKConversation, peerUser: com.meloda.fast.api.model.VKUser?, peerGroup: com.meloda.fast.api.model.VKGroup?): String {
+    fun getTitle(
+        conversation: VKConversation,
+        peerUser: VKUser?,
+        peerGroup: VKGroup?
+    ): String {
         return when {
-            conversation.isUser() -> {
-                peerUser?.let { return it.toString() } ?: ""
-            }
+            conversation.isUser() -> peerUser?.let { return it.toString() } ?: ""
 
-            conversation.isGroup() -> {
-                peerGroup?.let { return it.name } ?: ""
-            }
 
-            conversation.isChat() -> {
-                conversation.title
-            }
+            conversation.isGroup() -> peerGroup?.let { return it.name } ?: ""
+
+
+            conversation.isChat() -> conversation.title ?: ""
 
             else -> ""
         }
     }
 
-    fun getMessageTitle(message: com.meloda.fast.api.model.VKMessage, fromUser: com.meloda.fast.api.model.VKUser?, fromGroup: com.meloda.fast.api.model.VKGroup?): String {
+    fun getMessageTitle(
+        message: VKMessage,
+        fromUser: VKUser?,
+        fromGroup: VKGroup?
+    ): String {
         return when {
             message.isFromUser() -> {
                 fromUser?.let { return it.toString() } ?: ""
@@ -153,7 +158,11 @@ object VKUtil {
         }
     }
 
-    fun getAvatar(conversation: com.meloda.fast.api.model.VKConversation, peerUser: com.meloda.fast.api.model.VKUser?, peerGroup: com.meloda.fast.api.model.VKGroup?): String {
+    fun getAvatar(
+        conversation: VKConversation,
+        peerUser: VKUser?,
+        peerGroup: VKGroup?
+    ): String {
         return when {
             conversation.isUser() -> {
                 peerUser?.let { return it.photo200 } ?: ""
@@ -171,7 +180,11 @@ object VKUtil {
         }
     }
 
-    fun getUserAvatar(message: com.meloda.fast.api.model.VKMessage, fromUser: com.meloda.fast.api.model.VKUser?, fromGroup: com.meloda.fast.api.model.VKGroup?): String {
+    fun getUserAvatar(
+        message: VKMessage,
+        fromUser: VKUser?,
+        fromGroup: VKGroup?
+    ): String {
         return when {
             message.isFromUser() -> {
                 fromUser?.let { return it.photo100 } ?: ""
@@ -185,7 +198,7 @@ object VKUtil {
         }
     }
 
-    fun getUserPhoto(user: com.meloda.fast.api.model.VKUser): String {
+    fun getUserPhoto(user: VKUser): String {
         if (user.photo200.isEmpty()) {
             if (user.photo100.isEmpty()) {
                 if (user.photo50.isEmpty()) {
@@ -201,7 +214,7 @@ object VKUtil {
         return ""
     }
 
-    fun getGroupPhoto(group: com.meloda.fast.api.model.VKGroup): String {
+    fun getGroupPhoto(group: VKGroup): String {
         if (group.photo200.isEmpty()) {
             if (group.photo100.isEmpty()) {
                 if (group.photo50.isEmpty()) {
@@ -218,26 +231,26 @@ object VKUtil {
     }
 
 
-    fun parseConversations(array: JSONArray): ArrayList<com.meloda.fast.api.model.VKConversation> {
-        val conversations = arrayListOf<com.meloda.fast.api.model.VKConversation>()
+    fun parseConversations(array: JSONArray): ArrayList<VKConversation> {
+        val conversations = arrayListOf<VKConversation>()
         for (i in 0 until array.length()) {
-            conversations.add(com.meloda.fast.api.model.VKConversation(array.optJSONObject(i)))
+            conversations.add(VKConversation(array.optJSONObject(i)))
         }
 
         return conversations
     }
 
-    fun parseMessages(array: JSONArray): ArrayList<com.meloda.fast.api.model.VKMessage> {
-        val messages = arrayListOf<com.meloda.fast.api.model.VKMessage>()
+    fun parseMessages(array: JSONArray): ArrayList<VKMessage> {
+        val messages = arrayListOf<VKMessage>()
         for (i in 0 until array.length()) {
-            messages.add(com.meloda.fast.api.model.VKMessage(array.optJSONObject(i)))
+            messages.add(VKMessage(array.optJSONObject(i)))
         }
 
         return messages
     }
 
     fun isMessageHasFlag(mask: Int, flagName: String): Boolean {
-        val o: Any? = com.meloda.fast.api.model.VKMessage.flags[flagName]
+        val o: Any? = VKMessage.flags[flagName]
         return if (o != null) { //has flag
             val flag = o as Int
             flag and mask > 0
@@ -248,8 +261,8 @@ object VKUtil {
     //fromUser and fromGroup are null
     @Deprecated("need to rewrite")
     @WorkerThread
-    fun parseLongPollMessage(array: JSONArray): com.meloda.fast.api.model.VKMessage {
-        val message = com.meloda.fast.api.model.VKMessage()
+    fun parseLongPollMessage(array: JSONArray): VKMessage {
+        val message = VKMessage()
 
         val id = array.optInt(1)
         val flags = array.optInt(2)
@@ -276,33 +289,34 @@ object VKUtil {
             }
 
             if (it.has("source_act")) {
-                message.action = com.meloda.fast.api.model.VKMessageAction().also { action ->
-                    action.type = com.meloda.fast.api.model.VKMessageAction.Type.fromString(it.optString("source_act"))
+                message.action = VKMessageAction().also { action ->
+                    action.type =
+                        VKMessageAction.Type.fromString(it.optString("source_act"))
 
                     when (action.type) {
-                        com.meloda.fast.api.model.VKMessageAction.Type.CHAT_CREATE -> {
+                        VKMessageAction.Type.CHAT_CREATE -> {
                             action.text = it.optString("source_text")
                         }
-                        com.meloda.fast.api.model.VKMessageAction.Type.TITLE_UPDATE -> {
+                        VKMessageAction.Type.TITLE_UPDATE -> {
                             action.oldText = it.optString("source_old_text")
                             action.text = it.optString("source_text")
                         }
-                        com.meloda.fast.api.model.VKMessageAction.Type.PIN_MESSAGE -> {
+                        VKMessageAction.Type.PIN_MESSAGE -> {
                             action.memberId = it.optInt("source_mid")
                             action.conversationMessageId = it.optInt("source_chat_local_id")
 
                             it.optJSONObject("source_message")?.let { message ->
-                                action.message = com.meloda.fast.api.model.VKMessage(message)
+                                action.message = VKMessage(message)
                             }
                         }
-                        com.meloda.fast.api.model.VKMessageAction.Type.UNPIN_MESSAGE -> {
+                        VKMessageAction.Type.UNPIN_MESSAGE -> {
                             action.memberId = it.optInt("source_mid")
                             action.conversationMessageId = it.optInt("source_chat_local_id")
                         }
-                        com.meloda.fast.api.model.VKMessageAction.Type.INVITE_USER,
-                        com.meloda.fast.api.model.VKMessageAction.Type.KICK_USER,
-                        com.meloda.fast.api.model.VKMessageAction.Type.SCREENSHOT,
-                        com.meloda.fast.api.model.VKMessageAction.Type.INVITE_USER_BY_CALL -> {
+                        VKMessageAction.Type.INVITE_USER,
+                        VKMessageAction.Type.KICK_USER,
+                        VKMessageAction.Type.SCREENSHOT,
+                        VKMessageAction.Type.INVITE_USER_BY_CALL -> {
                             action.memberId = it.optInt("source_mid")
                         }
                     }
diff --git a/app/src/main/java/com/meloda/fast/base/BaseVMFragment.kt b/app/src/main/java/com/meloda/fast/base/BaseVMFragment.kt
index 108f7aee..e7c5de1c 100644
--- a/app/src/main/java/com/meloda/fast/base/BaseVMFragment.kt
+++ b/app/src/main/java/com/meloda/fast/base/BaseVMFragment.kt
@@ -6,8 +6,8 @@ import androidx.annotation.LayoutRes
 import androidx.lifecycle.lifecycleScope
 import com.meloda.fast.base.viewmodel.BaseVM
 import com.meloda.fast.base.viewmodel.VKEvent
-import kotlinx.coroutines.flow.onEach
 import kotlinx.coroutines.flow.collect
+import kotlinx.coroutines.flow.onEach
 
 abstract class BaseVMFragment<VM : BaseVM> : BaseFragment {
 
@@ -24,10 +24,6 @@ abstract class BaseVMFragment<VM : BaseVM> : BaseFragment {
         }
     }
 
-    protected open fun onEvent(event: VKEvent) {
-        when (event) {
-
-        }
-    }
+    protected open fun onEvent(event: VKEvent) {}
 
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/meloda/fast/base/adapter/BaseAdapter.kt b/app/src/main/java/com/meloda/fast/base/adapter/BaseAdapter.kt
index 0fe1a806..5b922c2b 100644
--- a/app/src/main/java/com/meloda/fast/base/adapter/BaseAdapter.kt
+++ b/app/src/main/java/com/meloda/fast/base/adapter/BaseAdapter.kt
@@ -5,37 +5,25 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.AdapterView
-import androidx.lifecycle.MutableLiveData
-import androidx.recyclerview.widget.RecyclerView
-import com.meloda.fast.base.BaseHolder
-import com.meloda.fast.extensions.LiveDataExtensions.add
-import com.meloda.fast.extensions.LiveDataExtensions.addAll
-import com.meloda.fast.extensions.LiveDataExtensions.clear
-import com.meloda.fast.extensions.LiveDataExtensions.get
-import com.meloda.fast.extensions.LiveDataExtensions.isEmpty
-import com.meloda.fast.extensions.LiveDataExtensions.isNotEmpty
-import com.meloda.fast.extensions.LiveDataExtensions.plusAssign
-import com.meloda.fast.extensions.LiveDataExtensions.remove
-import com.meloda.fast.extensions.LiveDataExtensions.removeAll
-import com.meloda.fast.extensions.LiveDataExtensions.removeAt
-import com.meloda.fast.extensions.LiveDataExtensions.set
-import com.meloda.fast.extensions.LiveDataExtensions.size
+import androidx.recyclerview.widget.DiffUtil
+import androidx.recyclerview.widget.ListAdapter
 
 @Suppress("UNCHECKED_CAST", "unused", "MemberVisibilityCanBePrivate", "CanBeParameter")
-abstract class BaseAdapter<Item, VH : BaseHolder>(
+abstract class BaseAdapter<Item : BaseItem, VH : BaseHolder>(
     var context: Context,
-    values: ArrayList<Item>
-) : RecyclerView.Adapter<VH>() {
+    values: ArrayList<Item>,
+    diffUtil: DiffUtil.ItemCallback<Item>
+) : ListAdapter<Item, VH>(diffUtil) {
 
-    val cleanValues = MutableLiveData<MutableList<Item>>(arrayListOf())
-    val values = MutableLiveData<MutableList<Item>>(arrayListOf())
-
-    protected var inflater: LayoutInflater = LayoutInflater.from(context)
+    val cleanValues = arrayListOf<Item>()
+    val values = arrayListOf<Item>()
 
     init {
-        this.values.value = values
+        addAll(values)
     }
 
+    protected var inflater: LayoutInflater = LayoutInflater.from(context)
+
     var itemClickListener: OnItemClickListener? = null
     var itemLongClickListener: OnItemLongClickListener? = null
 
@@ -44,13 +32,13 @@ abstract class BaseAdapter<Item, VH : BaseHolder>(
         itemLongClickListener = null
     }
 
-    open fun getItem(position: Int): Item {
+    override fun getItem(position: Int): Item {
         return values[position]
     }
 
     fun add(position: Int, item: Item) {
-        values.add(item, position)
-        cleanValues.add(item, position)
+        values.add(position, item)
+        cleanValues.add(position, item)
     }
 
     fun add(item: Item) {
@@ -64,8 +52,8 @@ abstract class BaseAdapter<Item, VH : BaseHolder>(
     }
 
     fun addAll(position: Int, items: List<Item>) {
-        values.addAll(items, position)
-        cleanValues.addAll(items, position)
+        values.addAll(position, items)
+        cleanValues.addAll(position, items)
     }
 
     fun removeAll(items: List<Item>) {
diff --git a/app/src/main/java/com/meloda/fast/base/adapter/BaseItem.kt b/app/src/main/java/com/meloda/fast/base/adapter/BaseItem.kt
new file mode 100644
index 00000000..7b1630b1
--- /dev/null
+++ b/app/src/main/java/com/meloda/fast/base/adapter/BaseItem.kt
@@ -0,0 +1,3 @@
+package com.meloda.fast.base.adapter
+
+abstract class BaseItem
\ No newline at end of file
diff --git a/app/src/main/java/com/meloda/fast/base/adapter/EmptyHeaderAdapter.kt b/app/src/main/java/com/meloda/fast/base/adapter/EmptyHeaderAdapter.kt
new file mode 100644
index 00000000..6da60751
--- /dev/null
+++ b/app/src/main/java/com/meloda/fast/base/adapter/EmptyHeaderAdapter.kt
@@ -0,0 +1,35 @@
+package com.meloda.fast.base.adapter
+
+import android.content.Context
+import android.view.View
+import android.view.ViewGroup
+import androidx.core.view.isInvisible
+import androidx.recyclerview.widget.RecyclerView
+import com.meloda.fast.util.AndroidUtils
+import kotlin.math.roundToInt
+
+class EmptyHeaderAdapter(
+    var context: Context
+) : RecyclerView.Adapter<EmptyHeaderAdapter.Holder>() {
+
+    inner class Holder(itemView: View) : RecyclerView.ViewHolder(itemView)
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int) = Holder(generateHeaderView())
+
+    override fun onBindViewHolder(holder: Holder, position: Int) {
+    }
+
+    override fun getItemCount() = 1
+
+    private fun generateHeaderView() = View(context).apply {
+        layoutParams = ViewGroup.LayoutParams(
+            ViewGroup.LayoutParams.MATCH_PARENT,
+            AndroidUtils.px(56).roundToInt()
+        )
+        isClickable = false
+        isEnabled = false
+        isFocusable = false
+        isInvisible = true
+    }
+
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/meloda/fast/base/adapter/Holders.kt b/app/src/main/java/com/meloda/fast/base/adapter/Holders.kt
index 563da0a7..eb6989ba 100644
--- a/app/src/main/java/com/meloda/fast/base/adapter/Holders.kt
+++ b/app/src/main/java/com/meloda/fast/base/adapter/Holders.kt
@@ -1,14 +1,15 @@
-package com.meloda.fast.base
+package com.meloda.fast.base.adapter
 
 import android.view.View
 import androidx.recyclerview.widget.RecyclerView
+import androidx.viewbinding.ViewBinding
 
 abstract class BaseHolder(v: View) : RecyclerView.ViewHolder(v) {
 
-    open fun bind(position: Int) {
-        bind(position, mutableListOf())
-    }
+    open fun bind(position: Int) {}
 
     open fun bind(position: Int, payloads: MutableList<Any>?) {}
 
-}
\ No newline at end of file
+}
+
+abstract class BindingHolder<B : ViewBinding>(protected val binding: B) : BaseHolder(binding.root)
\ No newline at end of file
diff --git a/app/src/main/java/com/meloda/fast/common/AppGlobal.kt b/app/src/main/java/com/meloda/fast/common/AppGlobal.kt
index 053bfd5e..4f79d1cf 100644
--- a/app/src/main/java/com/meloda/fast/common/AppGlobal.kt
+++ b/app/src/main/java/com/meloda/fast/common/AppGlobal.kt
@@ -2,11 +2,13 @@ package com.meloda.fast.common
 
 import android.annotation.SuppressLint
 import android.app.Application
+import android.content.Context
 import android.content.SharedPreferences
 import android.content.pm.PackageManager
 import android.content.res.Resources
 import android.database.sqlite.SQLiteDatabase
 import android.os.Handler
+import android.view.inputmethod.InputMethodManager
 import androidx.core.content.pm.PackageInfoCompat
 import androidx.preference.PreferenceManager
 import com.meloda.fast.BuildConfig
@@ -34,6 +36,8 @@ class AppGlobal : Application() {
 
     companion object {
 
+        lateinit var inputMethodManager: InputMethodManager
+
         lateinit var preferences: SharedPreferences
         lateinit var locale: Locale
         lateinit var handler: Handler
@@ -82,6 +86,8 @@ class AppGlobal : Application() {
 
         screenWidth = AndroidUtils.getDisplayWidth()
         screenHeight = AndroidUtils.getDisplayHeight()
+
+        inputMethodManager = getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
     }
 
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/meloda/fast/fragment/login/LoginFragment.kt b/app/src/main/java/com/meloda/fast/fragment/login/LoginFragment.kt
index 24cc6287..23d1b950 100644
--- a/app/src/main/java/com/meloda/fast/fragment/login/LoginFragment.kt
+++ b/app/src/main/java/com/meloda/fast/fragment/login/LoginFragment.kt
@@ -2,14 +2,11 @@ package com.meloda.fast.fragment.login
 
 import android.annotation.SuppressLint
 import android.os.Bundle
-import android.view.Gravity
 import android.view.KeyEvent
 import android.view.View
-import android.view.ViewGroup
 import android.view.inputmethod.EditorInfo
 import android.viewbinding.library.fragment.viewBinding
 import android.webkit.CookieManager
-import android.widget.LinearLayout
 import androidx.appcompat.app.AlertDialog
 import androidx.core.os.bundleOf
 import androidx.core.view.isVisible
@@ -19,14 +16,15 @@ import androidx.fragment.app.viewModels
 import androidx.lifecycle.lifecycleScope
 import androidx.navigation.fragment.findNavController
 import coil.load
-import com.google.android.material.imageview.ShapeableImageView
-import com.google.android.material.textfield.TextInputEditText
+import coil.transform.RoundedCornersTransformation
+import com.google.android.material.snackbar.Snackbar
 import com.google.android.material.textfield.TextInputLayout
 import com.meloda.fast.R
 import com.meloda.fast.base.BaseVMFragment
 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.databinding.DialogCaptchaBinding
 import com.meloda.fast.databinding.FragmentLoginBinding
 import com.meloda.fast.fragment.main.MainFragment
 import com.meloda.fast.util.KeyboardUtils
@@ -36,7 +34,6 @@ import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import java.util.*
 import kotlin.concurrent.schedule
-import kotlin.math.roundToInt
 
 @AndroidEntryPoint
 class LoginFragment : BaseVMFragment<LoginVM>(R.layout.fragment_login) {
@@ -48,6 +45,7 @@ class LoginFragment : BaseVMFragment<LoginVM>(R.layout.fragment_login) {
     private var lastPassword: String = ""
 
     private var errorTimer: Timer? = null
+    private var captchaInputLayout: TextInputLayout? = null
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
@@ -56,20 +54,28 @@ class LoginFragment : BaseVMFragment<LoginVM>(R.layout.fragment_login) {
 
         prepareViews()
 
+        binding.loginInput.clearFocus()
+
         setFragmentResultListener("validation") { _, bundle ->
             lifecycleScope.launch { viewModel.getValidatedData(bundle) }
         }
+
+//        showCaptchaDialog(
+//            "https://www.vets4pets.com/syssiteassets/species/cat/kitten/tiny-kitten-in-field.jpg?width=1040",
+//            ""
+//        )
     }
 
     override fun onEvent(event: VKEvent) {
         super.onEvent(event)
 
         when (event) {
+            is ShowError -> showErrorSnackbar(event.errorDescription)
             is ShowCaptchaDialog -> showCaptchaDialog(event.captchaImage, event.captchaSid)
             is GoToValidationEvent -> goToValidation(event.redirectUrl)
             is GoToMainEvent -> goToMain(event.haveAuthorized)
             StartProgressEvent -> onProgressStarted()
-            StopProgressEvent -> onProgressEnded()
+            StopProgressEvent -> onProgressStopped()
         }
     }
 
@@ -80,7 +86,7 @@ class LoginFragment : BaseVMFragment<LoginVM>(R.layout.fragment_login) {
         binding.progress.isVisible = true
     }
 
-    private fun onProgressEnded() {
+    private fun onProgressStopped() {
         binding.loginContainer.isVisible = true
         binding.passwordContainer.isVisible = true
         binding.auth.isVisible = true
@@ -150,7 +156,7 @@ class LoginFragment : BaseVMFragment<LoginVM>(R.layout.fragment_login) {
 
             if (!validateInputData(loginString, passwordString)) return@setOnClickListener
 
-            KeyboardUtils.hideKeyboardFrom(it)
+            KeyboardUtils.hideKeyboardFrom(requireView().findFocus())
 
             lifecycleScope.launch {
                 viewModel.login(
@@ -162,19 +168,29 @@ class LoginFragment : BaseVMFragment<LoginVM>(R.layout.fragment_login) {
         }
     }
 
-    private fun validateInputData(loginString: String, passwordString: String): Boolean {
+    // TODO: 7/27/2021 extract strings to resources
+    private fun validateInputData(
+        loginString: String?,
+        passwordString: String?,
+        captchaCode: String? = null
+    ): Boolean {
         var isValidated = true
 
-        if (loginString.isEmpty()) {
+        if (loginString?.isEmpty() == true) {
             isValidated = false
             setError("Input login", binding.loginLayout)
         }
 
-        if (passwordString.isEmpty()) {
+        if (passwordString?.isEmpty() == true) {
             isValidated = false
             setError("Input password", binding.passwordLayout)
         }
 
+        if (captchaCode?.isEmpty() == true && captchaInputLayout != null) {
+            isValidated = false
+            setError("Input code", captchaInputLayout!!)
+        }
+
         return isValidated
     }
 
@@ -198,59 +214,60 @@ class LoginFragment : BaseVMFragment<LoginVM>(R.layout.fragment_login) {
     private fun clearErrors() {
         binding.loginLayout.error = ""
         binding.passwordLayout.error = ""
+
+        captchaInputLayout?.error = ""
     }
 
-    // TODO: 7/10/2021 extract layout to resources
     private fun showCaptchaDialog(captchaImage: String, captchaSid: String) {
-        val metrics = resources.displayMetrics
+        val captchaBinding = DialogCaptchaBinding.inflate(layoutInflater, null, false)
+        captchaInputLayout = captchaBinding.captchaLayout
 
-        val width = (metrics.widthPixels / 3.5).roundToInt()
-        val height = metrics.heightPixels / 7
-
-        val image = ShapeableImageView(requireContext()).also {
-            it.layoutParams = ViewGroup.LayoutParams(width, height)
+        captchaBinding.image.load(captchaImage) {
+            crossfade(100)
+            transformations(RoundedCornersTransformation(4f))
         }
 
-        val shapeModel = image.shapeAppearanceModel
-        image.shapeAppearanceModel = shapeModel.withCornerSize { 12f }
-
-        image.load(captchaImage) { crossfade(100) }
-
-        val captchaCodeEditText = TextInputEditText(requireContext())
-        captchaCodeEditText.setHint(R.string.captcha_hint)
-
-        captchaCodeEditText.layoutParams =
-            LinearLayout.LayoutParams(
-                ViewGroup.LayoutParams.MATCH_PARENT,
-                ViewGroup.LayoutParams.WRAP_CONTENT
-            )
-
         val builder = AlertDialog.Builder(requireContext())
+            .setView(captchaBinding.root)
+            .setCancelable(false)
+            .setTitle(R.string.input_captcha)
 
-        val layout = LinearLayout(requireContext())
+        val dialog = builder.show()
 
-        layout.orientation = LinearLayout.VERTICAL
-        layout.gravity = Gravity.CENTER
-        layout.addView(image)
-        layout.addView(captchaCodeEditText)
+        captchaBinding.ok.setOnClickListener {
+            val captchaCode = captchaBinding.captchaInput.text.toString().trim()
 
-        builder.setView(layout)
-        builder.setNegativeButton(android.R.string.cancel, null)
-        builder.setPositiveButton(android.R.string.ok) { _, _ ->
-            val captchaCode = captchaCodeEditText.text.toString().trim()
+            if (!validateInputData(
+                    loginString = null,
+                    passwordString = null,
+                    captchaCode = captchaCode
+                )
+            ) return@setOnClickListener
+
+            dialog.dismiss()
 
             lifecycleScope.launch {
                 viewModel.login(
-                    binding.webView,
-                    lastEmail,
-                    lastPassword,
-                    "&captcha_sid=$captchaSid&captcha_key=$captchaCode"
+                    webView = binding.webView,
+                    email = lastEmail,
+                    password = lastPassword,
+                    captchaSid = captchaSid,
+                    captchaKey = captchaCode
                 )
             }
         }
+        captchaBinding.cancel.setOnClickListener { dialog.dismiss() }
+    }
 
-        builder.setTitle(R.string.input_captcha)
-        builder.show()
+    private fun showErrorSnackbar(errorDescription: String) {
+        val snackbar = Snackbar.make(
+            requireView(),
+            getString(R.string.error, errorDescription),
+            Snackbar.LENGTH_LONG
+        )
+
+        snackbar.animationMode = Snackbar.ANIMATION_MODE_FADE
+        snackbar.show()
     }
 
     private fun goToValidation(redirectUrl: String) {
diff --git a/app/src/main/java/com/meloda/fast/fragment/login/LoginVM.kt b/app/src/main/java/com/meloda/fast/fragment/login/LoginVM.kt
index 330fabdd..7f449236 100644
--- a/app/src/main/java/com/meloda/fast/fragment/login/LoginVM.kt
+++ b/app/src/main/java/com/meloda/fast/fragment/login/LoginVM.kt
@@ -1,6 +1,7 @@
 package com.meloda.fast.fragment.login
 
 import android.os.Bundle
+import android.util.Log
 import android.webkit.JavascriptInterface
 import android.webkit.WebView
 import android.webkit.WebViewClient
@@ -19,20 +20,21 @@ import org.jsoup.Jsoup
 
 class LoginVM : BaseVM() {
 
-    private var isWebViewPrepared = true
+    private var isWebViewPrepared = false
 
     suspend fun login(
         webView: WebView,
         email: String,
         password: String,
-        captcha: String = ""
+        captchaSid: String? = null,
+        captchaKey: String? = null
     ) {
         sendEvent(StartProgressEvent)
 
-        val urlToGo = VKAuth.getDirectAuthUrl(email, password, captcha)
+        val urlToGo = VKAuth.getDirectAuthUrl(email, password, captchaSid, captchaKey)
 
-        if (isWebViewPrepared) {
-            isWebViewPrepared = false
+        if (!isWebViewPrepared) {
+            isWebViewPrepared = true
 
             webView.addJavascriptInterface(WebViewHandlerInterface(), "HtmlHandler")
 
@@ -52,11 +54,14 @@ class LoginVM : BaseVM() {
     @Suppress("MoveVariableDeclarationIntoWhen")
     private fun checkResponse(response: JSONObject) {
         viewModelScope.launch(Dispatchers.Default) {
-            delay(1500)
-            sendEvent(StopProgressEvent)
-
             if (response.has("error")) {
+                sendEvent(StopProgressEvent)
+
                 val errorString = response.optString("error")
+                val errorDescription = response.optString("error_description")
+
+                // TODO: 7/27/2021 use this with localized resources
+//               val errorType = response.optString("error_type")
 
                 when (errorString) {
                     "need_validation" -> {
@@ -68,10 +73,18 @@ class LoginVM : BaseVM() {
                         val captchaImage = response.optString("captcha_img")
                         val captchaSid = response.optString("captcha_sid")
 
+                        Log.d("CAPTCHA", "captchaImage: $captchaImage")
+
                         tasksEventChannel.send(ShowCaptchaDialog(captchaImage, captchaSid))
                     }
+                    else -> {
+                        tasksEventChannel.send(ShowError(errorDescription))
+                    }
                 }
             } else {
+                delay(1500)
+                sendEvent(StopProgressEvent)
+
                 val userId = response.optInt("user_id", -1)
                 val accessToken = response.optString("access_token")
 
@@ -108,6 +121,7 @@ class LoginVM : BaseVM() {
 
 }
 
+data class ShowError(val errorDescription: String) : VKEvent()
 data class ShowCaptchaDialog(val captchaImage: String, val captchaSid: String) : VKEvent()
 data class GoToValidationEvent(val redirectUrl: String) : VKEvent()
 data class GoToMainEvent(val haveAuthorized: Boolean = true) : VKEvent()
\ No newline at end of file
diff --git a/app/src/main/java/com/meloda/fast/fragment/messages/ConversationsAdapter.kt b/app/src/main/java/com/meloda/fast/fragment/messages/ConversationsAdapter.kt
new file mode 100644
index 00000000..de34a4f1
--- /dev/null
+++ b/app/src/main/java/com/meloda/fast/fragment/messages/ConversationsAdapter.kt
@@ -0,0 +1,41 @@
+package com.meloda.fast.fragment.messages
+
+import android.content.Context
+import android.view.ViewGroup
+import androidx.recyclerview.widget.DiffUtil
+import com.meloda.fast.api.model.VKConversation
+import com.meloda.fast.base.adapter.BaseAdapter
+import com.meloda.fast.base.adapter.BindingHolder
+import com.meloda.fast.databinding.ItemConversationBinding
+
+class ConversationsAdapter(context: Context, values: ArrayList<VKConversation>) :
+    BaseAdapter<VKConversation, ConversationsAdapter.ItemHolder>(
+        context, values, COMPARATOR
+    ) {
+
+    companion object {
+        private val COMPARATOR = object : DiffUtil.ItemCallback<VKConversation>() {
+            override fun areItemsTheSame(
+                oldItem: VKConversation,
+                newItem: VKConversation
+            ) = false
+
+            override fun areContentsTheSame(
+                oldItem: VKConversation,
+                newItem: VKConversation
+            ) = false
+        }
+    }
+
+    inner class ItemHolder(binding: ItemConversationBinding) :
+        BindingHolder<ItemConversationBinding>(binding) {
+
+        override fun bind(position: Int) {
+            binding.title.text = getItem(position).title ?: "HUI"
+        }
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int) =
+        ItemHolder(ItemConversationBinding.inflate(inflater, parent, false))
+
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/meloda/fast/fragment/messages/ConversationsFragment.kt b/app/src/main/java/com/meloda/fast/fragment/messages/ConversationsFragment.kt
index d9d5a21f..d723b47b 100644
--- a/app/src/main/java/com/meloda/fast/fragment/messages/ConversationsFragment.kt
+++ b/app/src/main/java/com/meloda/fast/fragment/messages/ConversationsFragment.kt
@@ -3,19 +3,81 @@ package com.meloda.fast.fragment.messages
 import android.os.Bundle
 import android.view.View
 import android.viewbinding.library.fragment.viewBinding
+import androidx.core.view.isVisible
+import androidx.fragment.app.viewModels
 import com.meloda.fast.R
-import com.meloda.fast.base.BaseFragment
+import com.meloda.fast.base.BaseVMFragment
+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.databinding.FragmentConversationsBinding
+import com.meloda.fast.util.AndroidUtils
 import dagger.hilt.android.AndroidEntryPoint
+import kotlin.math.roundToInt
 
 @AndroidEntryPoint
-class ConversationsFragment : BaseFragment(R.layout.fragment_conversations) {
+class ConversationsFragment : BaseVMFragment<ConversationsVM>(R.layout.fragment_conversations) {
 
+    override val viewModel: ConversationsVM by viewModels()
     private val binding: FragmentConversationsBinding by viewBinding()
 
+    private lateinit var adapter: ConversationsAdapter
+
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
 
+        prepareViews()
+
+        viewModel.loadConversations()
+    }
+
+    override fun onEvent(event: VKEvent) {
+        super.onEvent(event)
+        when (event) {
+            StartProgressEvent -> onProgressStarted()
+            StopProgressEvent -> onProgressStopped()
+        }
+    }
+
+    private fun onProgressStarted() {
+        if (adapter.isEmpty())
+        binding.progressBar.isVisible = true
+    }
+
+    private fun onProgressStopped() {
+        binding.progressBar.isVisible = false
+    }
+
+    private fun prepareViews() {
+        prepareRecyclerView()
+        prepareRefreshLayout()
+    }
+
+    private fun prepareRecyclerView() {
+
+    }
+
+    private fun prepareRefreshLayout() {
+        with(binding.refreshLayout) {
+            setProgressViewOffset(
+                true,
+                AndroidUtils.px(40).roundToInt(),
+                AndroidUtils.px(96).roundToInt()
+            )
+            setProgressBackgroundColorSchemeColor(
+                AndroidUtils.getThemeAttrColor(
+                    requireContext(),
+                    R.attr.colorSurface
+                )
+            )
+            setColorSchemeColors(
+                AndroidUtils.getThemeAttrColor(
+                    requireContext(),
+                    R.attr.colorAccent
+                )
+            )
+            setOnRefreshListener { }
+        }
     }
 
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/meloda/fast/fragment/messages/ConversationsVM.kt b/app/src/main/java/com/meloda/fast/fragment/messages/ConversationsVM.kt
new file mode 100644
index 00000000..5dc00b15
--- /dev/null
+++ b/app/src/main/java/com/meloda/fast/fragment/messages/ConversationsVM.kt
@@ -0,0 +1,13 @@
+package com.meloda.fast.fragment.messages
+
+import androidx.lifecycle.viewModelScope
+import com.meloda.fast.base.viewmodel.BaseVM
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+
+class ConversationsVM : BaseVM() {
+
+    fun loadConversations() = viewModelScope.launch(Dispatchers.Default) {
+
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/meloda/fast/util/KeyboardUtils.kt b/app/src/main/java/com/meloda/fast/util/KeyboardUtils.kt
index 8b31c442..2c76a379 100644
--- a/app/src/main/java/com/meloda/fast/util/KeyboardUtils.kt
+++ b/app/src/main/java/com/meloda/fast/util/KeyboardUtils.kt
@@ -1,16 +1,16 @@
 package com.meloda.fast.util
 
 import android.view.View
+import com.meloda.fast.common.AppGlobal
 
-//TODO
 object KeyboardUtils {
 
-    fun hideKeyboardFrom(view: View) {
-//        AppGlobal.inputMethodManager.hideSoftInputFromWindow(view.windowToken, 0)
+    fun hideKeyboardFrom(focusedView: View?) {
+        AppGlobal.inputMethodManager.hideSoftInputFromWindow(focusedView?.windowToken, 0)
     }
 
-    fun showKeyboard(focusedView: View) {
-//        AppGlobal.inputMethodManager.showSoftInput(focusedView, 0)
+    fun showKeyboard(viewToFocus: View) {
+        AppGlobal.inputMethodManager.showSoftInput(viewToFocus, 0)
     }
 
 }
\ No newline at end of file
diff --git a/app/src/main/res/drawable-v21/ic_security.xml b/app/src/main/res/drawable-v21/ic_security.xml
new file mode 100644
index 00000000..ef2e5521
--- /dev/null
+++ b/app/src/main/res/drawable-v21/ic_security.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#ffffff"
+        android:pathData="M12,12H19C18.47,16.11 15.72,19.78 12,20.92V12H5V6.3L12,3.19M12,1L3,5V11C3,16.55 6.84,21.73 12,23C17.16,21.73 21,16.55 21,11V5L12,1Z" />
+</vector>
\ No newline at end of file
diff --git a/app/src/main/res/layout/dialog_captcha.xml b/app/src/main/res/layout/dialog_captcha.xml
new file mode 100644
index 00000000..cbdb0817
--- /dev/null
+++ b/app/src/main/res/layout/dialog_captcha.xml
@@ -0,0 +1,83 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        android:padding="@dimen/activity_horizontal_margin">
+
+        <com.google.android.material.imageview.ShapeableImageView
+            android:id="@+id/image"
+            android:layout_width="match_parent"
+            android:layout_height="50dp"
+            tools:src="@tools:sample/backgrounds/scenic" />
+
+        <LinearLayout
+            android:id="@+id/captchaContainer"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="@dimen/activity_vertical_margin"
+            android:orientation="horizontal">
+
+            <androidx.appcompat.widget.AppCompatImageView
+                android:id="@+id/captchaImage"
+                style="@style/AppTheme.Login.EditText.Icon"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="16dp"
+                android:src="@drawable/ic_security"
+                app:tint="?colorAccent" />
+
+            <com.google.android.material.textfield.TextInputLayout
+                android:id="@+id/captchaLayout"
+                style="@style/Widget.TextInputLayout.NoError.Dense"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content">
+
+                <com.google.android.material.textfield.TextInputEditText
+                    android:id="@+id/captchaInput"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:hint="@string/captcha_hint"
+                    android:imeOptions="actionGo"
+                    android:lines="1"
+                    android:maxLines="1" />
+
+            </com.google.android.material.textfield.TextInputLayout>
+
+        </LinearLayout>
+
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:gravity="center"
+            android:orientation="horizontal">
+
+            <com.google.android.material.button.MaterialButton
+                android:id="@+id/cancel"
+                style="@style/Widget.MaterialComponents.Button.OutlinedButton"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginEnd="@dimen/activity_horizontal_margin"
+                android:layout_weight="1"
+                android:text="@android:string/cancel"
+                app:elevation="0dp" />
+
+            <com.google.android.material.button.MaterialButton
+                android:id="@+id/ok"
+                style="@style/Widget.MaterialComponents.Button.UnelevatedButton"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="@android:string/ok"
+                app:elevation="0dp" />
+
+
+        </LinearLayout>
+
+    </LinearLayout>
+</layout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_conversations.xml b/app/src/main/res/layout/fragment_conversations.xml
index 81454c3e..4c3f8723 100644
--- a/app/src/main/res/layout/fragment_conversations.xml
+++ b/app/src/main/res/layout/fragment_conversations.xml
@@ -1,45 +1,47 @@
 <?xml version="1.0" encoding="utf-8"?>
 <androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
-    <TextView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="conversations" />
-
-    <com.google.android.material.appbar.AppBarLayout
+    <androidx.swiperefreshlayout.widget.SwipeRefreshLayout
+        android:id="@+id/refreshLayout"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
+        android:layout_height="match_parent"
+        app:layout_behavior="@string/appbar_scrolling_view_behavior">
+
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/recyclerView"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:orientation="vertical"
+            android:scrollbars="vertical"
+            app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
+            tools:listitem="@layout/item_conversation" />
+
+    </androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
+
+    <com.google.android.material.appbar.MaterialToolbar
+        android:id="@+id/toolbar"
+        android:layout_width="match_parent"
+        android:layout_height="52dp"
         android:layout_marginStart="16dp"
+        android:layout_marginTop="8dp"
         android:layout_marginEnd="16dp"
         android:layout_marginBottom="8dp"
-        android:background="@android:color/transparent"
-        app:elevation="0dp">
-
-        <com.google.android.material.appbar.CollapsingToolbarLayout
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            app:layout_scrollFlags="scroll|enterAlways">
-
-            <com.google.android.material.appbar.MaterialToolbar
-                android:id="@+id/toolbar"
-                android:layout_width="match_parent"
-                android:layout_height="?actionBarSize"
-                app:titleCentered="true" />
-        </com.google.android.material.appbar.CollapsingToolbarLayout>
-
-    </com.google.android.material.appbar.AppBarLayout>
-
-    <include layout="@layout/recycler_view" />
+        android:background="@drawable/toolbar_background"
+        android:elevation="3dp"
+        app:title="@string/conversations"
+        app:titleCentered="true" />
 
     <ProgressBar
         android:id="@+id/progressBar"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_gravity="center"
-        android:visibility="gone" />
+        android:visibility="gone"
+        tools:visibility="visible" />
 
     <include
         layout="@layout/no_items_view"
diff --git a/app/src/main/res/layout/fragment_login.xml b/app/src/main/res/layout/fragment_login.xml
index 4aef0c18..73cdca85 100644
--- a/app/src/main/res/layout/fragment_login.xml
+++ b/app/src/main/res/layout/fragment_login.xml
@@ -73,7 +73,8 @@
                         android:id="@+id/loginLayout"
                         style="@style/Widget.TextInputLayout.NoError.Dense"
                         android:layout_width="match_parent"
-                        android:layout_height="wrap_content">
+                        android:layout_height="wrap_content"
+                        app:boxStrokeErrorColor="@android:color/transparent">
 
                         <com.google.android.material.textfield.TextInputEditText
                             android:id="@+id/loginInput"
@@ -81,12 +82,10 @@
                             android:layout_height="48dp"
                             android:hint="@string/login_hint"
                             android:imeOptions="actionGo"
-                            android:inputType="textEmailAddress"
-                            android:textCursorDrawable="@null" />
+                            android:inputType="textEmailAddress" />
 
                     </com.google.android.material.textfield.TextInputLayout>
 
-
                 </LinearLayout>
 
                 <LinearLayout
@@ -110,6 +109,7 @@
                         style="@style/Widget.TextInputLayout.NoError.Dense"
                         android:layout_width="match_parent"
                         android:layout_height="wrap_content"
+                        app:boxStrokeErrorColor="@android:color/transparent"
                         app:passwordToggleEnabled="true"
                         app:passwordToggleTint="?colorAccent">
 
@@ -117,9 +117,9 @@
                             android:id="@+id/passwordInput"
                             android:layout_width="match_parent"
                             android:layout_height="48dp"
+                            android:imeOptions="actionGo"
                             android:hint="@string/password_login_hint"
-                            android:inputType="textPassword"
-                            android:textCursorDrawable="@null" />
+                            android:inputType="textPassword" />
 
                     </com.google.android.material.textfield.TextInputLayout>
 
diff --git a/app/src/main/res/layout/item_conversation.xml b/app/src/main/res/layout/item_conversation.xml
index 8a35cf3b..62273add 100644
--- a/app/src/main/res/layout/item_conversation.xml
+++ b/app/src/main/res/layout/item_conversation.xml
@@ -2,7 +2,7 @@
 <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
-    android:id="@+id/conversationRoot"
+    android:id="@+id/root"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:background="?selectableItemBackground"
@@ -12,7 +12,7 @@
     android:paddingBottom="2dp">
 
     <LinearLayout
-        android:id="@+id/conversationContainer"
+        android:id="@+id/container"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:layout_margin="6dp"
@@ -27,15 +27,15 @@
             android:layout_weight="0">
 
             <com.google.android.material.imageview.ShapeableImageView
-                android:id="@+id/conversationAvatar"
+                android:id="@+id/peerAvatar"
                 android:layout_width="56dp"
                 android:layout_height="56dp"
                 android:layout_gravity="bottom|end"
-                tools:actualImageResource="@color/accent"
+                app:shapeAppearanceOverlay="@style/CircleImageView.56"
                 tools:src="?colorAccent" />
 
             <androidx.appcompat.widget.AppCompatImageView
-                android:id="@+id/conversationUserOnline"
+                android:id="@+id/peerOnline"
                 android:layout_width="14dp"
                 android:layout_height="14dp"
                 android:layout_gravity="bottom|end"
@@ -59,7 +59,7 @@
                 android:orientation="horizontal">
 
                 <androidx.appcompat.widget.AppCompatImageView
-                    android:id="@+id/conversationType"
+                    android:id="@+id/type"
                     android:layout_width="20dp"
                     android:layout_height="match_parent"
                     android:layout_marginStart="4dp"
@@ -70,7 +70,7 @@
                     tools:src="@drawable/ic_dialog_type_conversation" />
 
                 <TextView
-                    android:id="@+id/conversationTitle"
+                    android:id="@+id/title"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginStart="8dp"
@@ -93,17 +93,17 @@
                 android:orientation="horizontal">
 
                 <com.google.android.material.imageview.ShapeableImageView
-                    android:id="@+id/conversationUserAvatar"
-                    android:layout_width="20dp"
-                    android:layout_height="20dp"
+                    android:id="@+id/fromAvatar"
+                    android:layout_width="24dp"
+                    android:layout_height="24dp"
                     android:layout_gravity="center_vertical"
                     android:layout_marginStart="6dp"
-                    tools:actualImageResource="@color/accent"
+                    app:shapeAppearanceOverlay="@style/CircleImageView.24"
                     tools:src="?colorAccent"
                     tools:visibility="visible" />
 
                 <androidx.appcompat.widget.AppCompatImageView
-                    android:id="@+id/conversationTextAttachment"
+                    android:id="@+id/textAttachment"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:layout_marginStart="4dp"
@@ -114,7 +114,7 @@
                     tools:visibility="visible" />
 
                 <TextView
-                    android:id="@+id/conversationText"
+                    android:id="@+id/text"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginStart="4dp"
@@ -138,7 +138,7 @@
             android:paddingEnd="6dp">
 
             <com.google.android.material.imageview.ShapeableImageView
-                android:id="@+id/conversationOut"
+                android:id="@+id/out"
                 android:layout_width="10dp"
                 android:layout_height="10dp"
                 android:layout_gravity="bottom"
@@ -151,7 +151,7 @@
     </LinearLayout>
 
     <TextView
-        android:id="@+id/conversationDate"
+        android:id="@+id/date"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_gravity="end|top"
@@ -164,7 +164,7 @@
         tools:text="now" />
 
     <TextView
-        android:id="@+id/conversationCounter"
+        android:id="@+id/counter"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_gravity="end"
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index 486bd376..864d4b70 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <color name="primary">#ffffff</color>
+    <color name="primary">@color/accent</color>
     <color name="primaryDark">#ffffff</color>
     <color name="accent">#4284F4</color>
     <color name="navigationBar">#ffffff</color>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 6a4e55e1..3a35b892 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -150,9 +150,11 @@
     <string name="password_login_hint">Password</string>
     <string name="email_login_hint">E-mail or phone number</string>
     <string name="log_in">Log in</string>
-    <string name="captcha_hint">Captcha</string>
+    <string name="captcha_hint">Captcha code</string>
     <string name="input_captcha">Input code from picture</string>
 
     <string name="login_hint">Login</string>
 
+    <string name="conversations">Conversations</string>
+
 </resources>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index 4fc6a9bc..20390357 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
+
     <style name="AppTheme.ActivityAnimation" parent="@android:style/Animation.Activity">
         <item name="android:activityOpenEnterAnimation">@anim/activity_open_enter</item>
         <item name="android:activityOpenExitAnimation">@anim/activity_open_exit</item>
@@ -11,4 +12,17 @@
         <item name="android:windowEnterAnimation">@anim/slide_up</item>
         <item name="android:windowExitAnimation">@anim/slide_down</item>
     </style>
+
+    <style name="CircleImageView">
+        <item name="cornerFamily">rounded</item>
+    </style>
+
+    <style name="CircleImageView.56">
+        <item name="cornerRadius">56dp</item>
+    </style>
+
+    <style name="CircleImageView.24">
+        <item name="cornerRadius">24dp</item>
+    </style>
+
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/themes.xml b/app/src/main/res/values/themes.xml
index 7647c116..fb58fea1 100644
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@@ -27,6 +27,7 @@
         <item name="android:navigationBarDividerColor" tools:targetApi="o_mr1">
             @android:color/transparent
         </item>
+
     </style>
 
     <style name="AppTheme.Toolbar" parent="Widget.MaterialComponents.Toolbar.PrimarySurface">
@@ -37,21 +38,15 @@
     </style>
 
     <style name="Toolbar.Title" parent="TextAppearance.MaterialComponents.Body1">
-        <item name="android:textSize">24sp</item>
-        <item name="android:fontFamily">@font/tt_commons_medium</item>
+        <item name="android:textSize">20sp</item>
+        <item name="android:textColor">@color/accent</item>
+        <item name="android:fontFamily">@font/google_sans_medium</item>
     </style>
 
     <style name="AppTheme.Dialog" parent="Theme.MaterialComponents.DayNight.Dialog.Alert" />
 
-    <style name="AppTheme.Login.EditText" parent="">
-        <item name="android:layout_height">52dp</item>
-        <item name="android:background">@drawable/edittext_filled_background</item>
-        <item name="android:paddingStart">16dp</item>
-        <item name="android:paddingEnd">16dp</item>
-        <item name="android:layout_marginEnd">16dp</item>
-        <item name="android:textSize">14sp</item>
-        <item name="android:textColor">?android:textColorPrimary</item>
-        <item name="android:textColorHint">?textColorSecondary</item>
+    <style name="AppTheme.Login.EditText" parent="Widget.Design.TextInputEditText">
+        <item name="android:layout_height">48dp</item>
         <item name="fontFamily">@font/google_sans_regular</item>
         <item name="android:singleLine">true</item>
         <item name="android:maxLines">1</item>
diff --git a/build.gradle.kts b/build.gradle.kts
index b3069f30..305f8f92 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -6,7 +6,7 @@ buildscript {
     }
     dependencies {
         classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:1.5.20")
-        classpath("com.android.tools.build:gradle:4.2.2")
+        classpath("com.android.tools.build:gradle:7.0.0")
         classpath("androidx.navigation:navigation-safe-args-gradle-plugin:2.3.5")
 
         classpath("com.google.dagger:hilt-android-gradle-plugin:2.37")
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index df10bb98..46b6932b 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.2-all.zip