Track client and server sources

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-06-23 12:04:01 +03:00
parent d9f7603ae8
commit de9dd05308
383 changed files with 44782 additions and 2 deletions
--- a/1
+++ b/1
--- a/messenger-client/.gitignore
+++ b/messenger-client/.gitignore
@@ -0,0 +1,27 @@
+# Android Studio
+.idea/
+.gradle/
+build/
+app/build/
+app/release/
+local.properties
+.DS_Store
+Thumbs.db
+*.iml
+*.iws
+*.ipr
+*.bak
+
+# Firebase
+app/google-services.json
+
+# Keystore files
+*.jks
+*.keystore
+
+app/.cxx/
+
+captures/
+
+# Additional files
+*.log
--- a/messenger-client/LICENSE
+++ b/messenger-client/LICENSE
@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
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--- a/messenger-client/app/build.gradle.kts
+++ b/messenger-client/app/build.gradle.kts
@@ -0,0 +1,142 @@
+import org.jetbrains.kotlin.gradle.dsl.JvmTarget
+
+fun String.asBuildConfigString(): String {
+    return "\"${replace("\\", "\\\\").replace("\"", "\\\"")}\""
+}
+
+val serverUrl = providers.gradleProperty("SERVER_URL")
+    .orElse(providers.environmentVariable("SERVER_URL"))
+    .orElse("https://msgr.jeezft.xyz")
+    .get()
+    .trimEnd('/') + "/"
+
+val webSocketUrl = providers.gradleProperty("WEB_SOCKET_URL")
+    .orElse(providers.environmentVariable("WEB_SOCKET_URL"))
+    .orElse("wss://msgr.jeezft.xyz")
+    .get()
+    .trimEnd('/')
+
+plugins {
+    alias(libs.plugins.android.application)
+    alias(libs.plugins.kotlin.android)
+    alias(libs.plugins.kotlin.compose)
+    alias(libs.plugins.gms)
+    
+    id("org.jetbrains.kotlin.plugin.serialization") version "2.2.21"
+    
+    id("com.google.dagger.hilt.android")
+    id("com.google.devtools.ksp")
+}
+
+android {
+    namespace = "com.aiwazian.messenger"
+    compileSdk = 36
+    
+    defaultConfig {
+        applicationId = "com.aiwazian.messenger"
+        minSdk = 28
+        targetSdk = 36
+        versionCode = 15
+        versionName = "1.7.0"
+
+        buildConfigField("String", "SERVER_URL", serverUrl.asBuildConfigString())
+        buildConfigField("String", "WEB_SOCKET_URL", webSocketUrl.asBuildConfigString())
+        
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+    }
+    
+    buildTypes {
+        release {
+            isMinifyEnabled = true
+            isShrinkResources = true
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                
+                "proguard-rules.pro"
+            )
+            signingConfig = signingConfigs.getByName("debug")
+        }
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+    }
+    buildFeatures {
+        compose = true
+        viewBinding = true
+        buildConfig = true
+    }
+    buildToolsVersion = "36.0.0"
+    dependenciesInfo {
+        includeInApk = false
+        includeInBundle = false
+    }
+    kotlin {
+        compilerOptions {
+            jvmTarget = JvmTarget.JVM_17
+        }
+    }
+}
+
+dependencies {
+    // Firebase
+    implementation(platform(libs.firebase.bom))
+    implementation(libs.firebase.messaging)
+    implementation(libs.firebase.analytics)
+    
+    implementation(platform(libs.androidx.compose.bom))
+    implementation(libs.androidx.navigation.compose)
+    implementation(libs.androidx.ui)
+    implementation(libs.androidx.ui.graphics)
+    implementation(libs.androidx.ui.tooling.preview)
+    implementation(libs.androidx.core.ktx)
+    implementation(libs.androidx.animation)
+    implementation(libs.androidx.material3)
+    implementation(libs.androidx.material.icons.extended.android)
+    implementation(libs.androidx.foundation)
+    implementation(libs.androidx.activity.compose)
+    implementation(libs.androidx.lifecycle.runtime.ktx)
+    implementation(libs.androidx.lifecycle.viewmodel.compose)
+    
+    // DataStore
+    implementation(libs.androidx.datastore.preferences)
+    
+    implementation(libs.accompanist.systemuicontroller)
+    implementation(libs.accompanist.navigation.material)
+    implementation(libs.accompanist.navigation.animation)
+    
+    implementation(libs.protobuf.javalite)
+    
+    implementation(libs.retrofit)
+    implementation(libs.converter.gson)
+    implementation(libs.kotlinx.serialization.json)
+    
+    // Ktor
+    implementation(libs.ktor.client.core)
+    implementation(libs.ktor.client.okhttp)
+    implementation(libs.ktor.client.websockets)
+    
+    implementation(libs.coil.compose)
+    
+    // Lottie animation
+    implementation(libs.lottie.compose)
+    
+    implementation(libs.zxing.android.embedded)
+    
+    implementation(libs.okhttp)
+    implementation(libs.socket.io.client)
+    
+    // Dagger Hilt
+    implementation(libs.hilt.android)
+    implementation(libs.androidx.graphics.shapes)
+    debugImplementation(libs.androidx.compose.ui.tooling)
+    ksp(libs.hilt.compiler)
+    implementation(libs.androidx.hilt.navigation.compose)
+    
+    // Room database
+    implementation(libs.androidx.room.runtime)
+    ksp(libs.androidx.room.compiler)
+    implementation(libs.androidx.room.ktx)
+    
+    implementation(libs.material.icons.extended)
+}
--- a/messenger-client/app/proguard-rules.pro
+++ b/messenger-client/app/proguard-rules.pro
@@ -0,0 +1,27 @@
+-keepattributes Signature
+
+# Keep generic signature of Call, Response (R8 full mode strips signatures from non-kept items).
+-keep,allowobfuscation,allowshrinking interface retrofit2.Call
+-keep,allowobfuscation,allowshrinking class retrofit2.Response
+
+# With R8 full mode generic signatures are stripped for classes that are not
+# kept. Suspend functions are wrapped in continuations where the type argument
+# is used.
+-keep,allowobfuscation,allowshrinking class kotlin.coroutines.Continuation
+
+# R8 full mode strips generic signatures from return types if not kept.
+-if interface * { @retrofit2.http.* public *** *(...); }
+-keep,allowoptimization,allowshrinking,allowobfuscation class <3>
+
+# With R8 full mode generic signatures are stripped for classes that are not kept.
+-keep,allowobfuscation,allowshrinking class retrofit2.Response
+
+# Deleting all calls Log.v, Log.d, Log.i, Log.w, Log.e, Log.wtf
+-assumenosideeffects class android.util.Log {
+    public static *** d(...);
+    public static *** e(...);
+    public static *** i(...);
+    public static *** v(...);
+    public static *** w(...);
+    public static *** wtf(...);
+}
--- a/messenger-client/app/src/main/AndroidManifest.xml
+++ b/messenger-client/app/src/main/AndroidManifest.xml
@@ -0,0 +1,76 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <uses-feature
+        android:name="android.hardware.camera"
+        android:required="false" />
+
+    <uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT" />
+
+    <uses-permission android:name="android.permission.INTERNET" />
+
+    <uses-permission android:name="android.permission.VIBRATE" />
+
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
+    <uses-permission android:name="android.permission.ACCESS_NOTIFICATION_POLICY" />
+
+    <uses-permission
+        android:name="android.permission.CAMERA"
+        tools:node="remove" />
+
+    <application
+        android:name=".Application"
+        android:allowBackup="true"
+        android:enableOnBackInvokedCallback="true"
+        android:fullBackupContent="@xml/backup_rules"
+        android:icon="@mipmap/new_app_icon"
+        android:label="@string/app_name"
+        android:networkSecurityConfig="@xml/network_security_config"
+        android:roundIcon="@mipmap/new_app_icon"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.Messenger"
+        android:usesCleartextTraffic="true"
+        tools:ignore="DataExtractionRules"
+        tools:targetApi="33">
+
+        <provider
+            android:name="androidx.core.content.FileProvider"
+            android:authorities="com.aiwazian.messenger.fileprovider"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/file_paths" />
+        </provider>
+
+        <service
+            android:name=".services.NotificationService"
+            android:exported="false"
+            android:launchMode="singleTop">
+            <intent-filter>
+                <action android:name="com.google.firebase.MESSAGING_EVENT" />
+            </intent-filter>
+        </service>
+
+        <activity
+            android:name=".LoginActivity"
+            android:exported="false"
+            android:theme="@style/Theme.Messenger" />
+
+        <activity
+            android:name=".MainActivity"
+            android:launchMode="singleTop"
+            android:exported="true"
+            android:theme="@style/Theme.Messenger">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+</manifest>
--- a/messenger-client/app/src/main/assets/folder_closed.json
+++ b/messenger-client/app/src/main/assets/folder_closed.json
--- a/messenger-client/app/src/main/assets/folders.json
+++ b/messenger-client/app/src/main/assets/folders.json
--- a/messenger-client/app/src/main/assets/key_gold.json
+++ b/messenger-client/app/src/main/assets/key_gold.json
--- a/messenger-client/app/src/main/assets/key_iron.json
+++ b/messenger-client/app/src/main/assets/key_iron.json
--- a/messenger-client/app/src/main/assets/key_lock.json
+++ b/messenger-client/app/src/main/assets/key_lock.json
--- a/messenger-client/app/src/main/assets/phone_apple.json
+++ b/messenger-client/app/src/main/assets/phone_apple.json
--- a/messenger-client/app/src/main/assets/search_out.json
+++ b/messenger-client/app/src/main/assets/search_out.json
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/Application.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/Application.kt
@@ -0,0 +1,15 @@
+package com.aiwazian.messenger
+
+import android.app.Application
+import com.google.firebase.FirebaseApp
+import dagger.hilt.android.HiltAndroidApp
+import java.util.Locale
+
+@HiltAndroidApp
+class Application : Application() {
+    override fun onCreate() {
+        super.onCreate()
+        Locale.setDefault(Locale.forLanguageTag("ru"))
+        FirebaseApp.initializeApp(this)
+    }
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/LoginActivity.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/LoginActivity.kt
@@ -0,0 +1,25 @@
+package com.aiwazian.messenger
+
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.activity.enableEdgeToEdge
+import com.aiwazian.messenger.ui.login.AuthScreen
+import com.aiwazian.messenger.ui.theme.ApplicationTheme
+import dagger.hilt.android.AndroidEntryPoint
+
+@AndroidEntryPoint
+class LoginActivity : ComponentActivity() {
+    
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        
+        enableEdgeToEdge()
+        
+        setContent {
+            ApplicationTheme(dynamicColor = true) {
+                AuthScreen()
+            }
+        }
+    }
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/MainActivity.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/MainActivity.kt
@@ -0,0 +1,190 @@
+package com.aiwazian.messenger
+
+import android.content.Context
+import android.content.Intent
+import android.os.Bundle
+import android.util.Log
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.activity.enableEdgeToEdge
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.animation.core.tween
+import androidx.compose.animation.fadeIn
+import androidx.compose.animation.fadeOut
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.lifecycle.lifecycleScope
+import androidx.lifecycle.viewmodel.compose.viewModel
+import com.aiwazian.messenger.database.repository.UserRepository
+import com.aiwazian.messenger.services.AppLockService
+import com.aiwazian.messenger.services.DataStoreManager
+import com.aiwazian.messenger.services.NotificationService
+import com.aiwazian.messenger.services.ThemeService
+import com.aiwazian.messenger.services.TokenManager
+import com.aiwazian.messenger.services.UserManager
+import com.aiwazian.messenger.ui.ChatScreen
+import com.aiwazian.messenger.ui.LockScreen
+import com.aiwazian.messenger.ui.MainScreen
+import com.aiwazian.messenger.ui.element.NavigationController
+import com.aiwazian.messenger.ui.theme.ApplicationTheme
+import com.aiwazian.messenger.utils.ChatState
+import com.aiwazian.messenger.utils.WebSocketManager
+import com.aiwazian.messenger.viewModels.NavigationViewModel
+import dagger.hilt.android.AndroidEntryPoint
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.runBlocking
+import javax.inject.Inject
+
+@AndroidEntryPoint
+class MainActivity : ComponentActivity() {
+    
+    @Inject
+    lateinit var appLockService: AppLockService
+    
+    @Inject
+    lateinit var themeService: ThemeService
+    
+    @Inject
+    lateinit var userRepository: UserRepository
+    
+    lateinit var navViewModel: NavigationViewModel
+    
+    override fun attachBaseContext(newBase: Context) {
+        DataStoreManager.initialize(newBase)
+        runBlocking { TokenManager.init() }
+        super.attachBaseContext(newBase)
+    }
+    
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        if (TokenManager.getToken().isBlank()) {
+            startActivity(
+                Intent(
+                    this,
+                    LoginActivity::class.java
+                ).apply {
+                    flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
+                }
+            )
+            finish()
+            return
+        }
+        
+        enableEdgeToEdge()
+        
+        TokenManager.setUnauthorizedCallback {
+            val intent = Intent(
+                this,
+                LoginActivity::class.java
+            ).apply {
+                flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
+            }
+            this@MainActivity.startActivity(intent)
+            this@MainActivity.finish()
+        }
+        
+        setContent {
+            val isLockApp by appLockService.isLockApp.collectAsState()
+            val selectedTheme by themeService.currentTheme.collectAsState()
+            val selectedColor by themeService.primaryColor.collectAsState()
+            val isDynamicColorEnable by themeService.dynamicColor.collectAsState()
+            
+            LaunchedEffect(Unit) {
+                try {
+                    WebSocketManager.onConnect = {
+                        lifecycleScope.launch {
+                            UserManager.loadUserData(userRepository)
+                        }
+                    }
+                    
+                    WebSocketManager.onClose = { code ->
+                        if (code == 1008) {
+                            TokenManager.getUnauthorizedCallback()?.invoke()
+                        } else {
+                            lifecycleScope.launch {
+                                delay(1000)
+                                WebSocketManager.connect()
+                            }
+                        }
+                    }
+                    
+                    WebSocketManager.onFailure = {
+                        lifecycleScope.launch {
+                            delay(1000)
+                            WebSocketManager.connect()
+                        }
+                    }
+                    
+                    WebSocketManager.connect()
+                    
+                    UserManager.loadUserData(userRepository)
+                } catch (e: Exception) {
+                    Log.e(
+                        "MainActivity",
+                        "Ошибка подключения вебсокета",
+                        e
+                    )
+                }
+                
+                try {
+                    val notificationService = NotificationService()
+                    val token = notificationService.getFirebaseToken()
+                    notificationService.sendTokenToServer(token)
+                } catch (e: Exception) {
+                    Log.e(
+                        "MainActivity",
+                        "Ошибка при отправке токена для уведомлений на сервер",
+                        e
+                    )
+                }
+            }
+            
+            ApplicationTheme(
+                theme = selectedTheme,
+                dynamicColor = isDynamicColorEnable,
+                primaryColor = selectedColor.color
+            ) {
+                navViewModel = viewModel<NavigationViewModel>()
+                
+                NavigationController {
+                    MainScreen()
+                }
+                
+                AnimatedVisibility(
+                    visible = isLockApp,
+                    enter = fadeIn(tween(100)),
+                    exit = fadeOut(tween(100))
+                ) {
+                    LockScreen()
+                }
+                
+                LaunchedEffect(Unit) {
+                    val chatId = intent.getStringExtra("chatId")?.toLongOrNull()
+
+                    if (chatId != null && !ChatState.isChatOpen(chatId)) {
+                        navViewModel.addScreenInStack {
+                            ChatScreen(chatId)
+                        }
+                    }
+                }
+            }
+        }
+    }
+    
+    override fun onNewIntent(intent: Intent) {
+        super.onNewIntent(intent)
+        
+        val chatId = intent.getStringExtra("chatId")?.toLongOrNull()
+        
+        if (chatId != null) {
+            if (!ChatState.isChatOpen(chatId)) {
+                navViewModel.addScreenInStack {
+                    ChatScreen(chatId)
+                }
+            }
+        }
+    }
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/api/AuthInterceptor.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/api/AuthInterceptor.kt
@@ -0,0 +1,42 @@
+package com.aiwazian.messenger.api
+
+import com.aiwazian.messenger.services.TokenManager
+import okhttp3.Interceptor
+import okhttp3.Response
+
+class AuthInterceptor(
+    private val getToken: () -> String?,
+    private val shouldSkipAuth: (String) -> Boolean,
+    private val onUnauthorized: (() -> Unit)?
+) : Interceptor {
+    
+    override fun intercept(chain: Interceptor.Chain): Response {
+        val request = chain.request()
+        val path = request.url.encodedPath
+        
+        if (shouldSkipAuth(path)) {
+            return chain.proceed(request)
+        }
+        
+        val token = getToken()
+        val authRequest = if (!token.isNullOrEmpty()) {
+            request.newBuilder()
+                .addHeader(
+                    "Authorization",
+                    "Bearer $token"
+                )
+                .build()
+        } else {
+            request
+        }
+        
+        val response = chain.proceed(authRequest)
+        
+        if (response.code == 401 && TokenManager.isAuthorized()) {
+            TokenManager.setAuthorized(false)
+            onUnauthorized?.invoke()
+        }
+        
+        return response
+    }
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/api/ProgressInterceptor.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/api/ProgressInterceptor.kt
@@ -0,0 +1,25 @@
+package com.aiwazian.messenger.api
+
+import com.aiwazian.messenger.utils.ProgressResponseBody
+import okhttp3.Interceptor
+import okhttp3.Response
+
+class ProgressInterceptor(
+    private val onProgress: (url: String, progress: Int) -> Unit
+) : Interceptor {
+    override fun intercept(chain: Interceptor.Chain): Response {
+        val request = chain.request()
+        val response = chain.proceed(request)
+        val url = request.url.toString()
+        val body = response.body
+        return response.newBuilder()
+            .body(
+                ProgressResponseBody(
+                    url,
+                    body,
+                    onProgress
+                )
+            )
+            .build()
+    }
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/api/RetrofitInstance.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/api/RetrofitInstance.kt
@@ -0,0 +1,85 @@
+package com.aiwazian.messenger.api
+
+import com.aiwazian.messenger.interfaces.ApiService
+import com.aiwazian.messenger.services.TokenManager
+import com.aiwazian.messenger.utils.Constants
+import com.aiwazian.messenger.utils.DownloadManager
+import com.aiwazian.messenger.utils.Route
+import com.google.gson.GsonBuilder
+import com.google.gson.JsonDeserializationContext
+import com.google.gson.JsonDeserializer
+import com.google.gson.JsonElement
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
+import okhttp3.OkHttpClient
+import retrofit2.Retrofit
+import retrofit2.converter.gson.GsonConverterFactory
+import java.lang.reflect.Type
+import java.util.concurrent.TimeUnit
+
+private object LongTypeAdapter : JsonDeserializer<Long>, JsonSerializer<Long> {
+    override fun deserialize(json: JsonElement, typeOfT: Type, context: JsonDeserializationContext): Long {
+        return when {
+            json.isJsonPrimitive && json.asJsonPrimitive.isNumber -> json.asLong
+            json.isJsonPrimitive -> json.asString.toLongOrNull() ?: 0L
+            else -> 0L
+        }
+    }
+    override fun serialize(src: Long, typeOfSrc: Type, context: JsonSerializationContext): JsonElement {
+        return JsonPrimitive(src)
+    }
+}
+
+object RetrofitInstance {
+
+    private val gson = GsonBuilder()
+        .registerTypeAdapter(Long::class.java, LongTypeAdapter)
+        .registerTypeAdapter(Long::class.javaObjectType, LongTypeAdapter)
+        .create()
+
+    private val BASE_URL = Constants.SERVER_URL
+    
+    private val skipAuthPaths = listOf(
+        Route.LOGIN,
+        Route.REGISTER,
+        Route.FIND_USER_BY_LOGIN
+    )
+    
+    private val okHttpClient = OkHttpClient.Builder().connectTimeout(
+        1,
+        TimeUnit.MINUTES
+    ).readTimeout(
+        1,
+        TimeUnit.MINUTES
+    ).writeTimeout(
+        1,
+        TimeUnit.MINUTES
+    ).addInterceptor(
+        AuthInterceptor(
+            getToken = {
+                TokenManager.getToken()
+            },
+            shouldSkipAuth = { path ->
+                skipAuthPaths.contains(path)
+            },
+            onUnauthorized = {
+                TokenManager.getUnauthorizedCallback()?.invoke()
+            })
+    ).addNetworkInterceptor(
+        ProgressInterceptor { url, progress ->
+            DownloadManager.updateProgress(
+                url,
+                progress
+            )
+        }).build()
+    
+    val api: ApiService by lazy {
+        Retrofit.Builder()
+            .baseUrl(BASE_URL)
+            .client(okHttpClient)
+            .addConverterFactory(GsonConverterFactory.create(gson))
+            .build()
+            .create(ApiService::class.java)
+    }
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/ApiResponse.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/ApiResponse.kt
@@ -0,0 +1,14 @@
+package com.aiwazian.messenger.data
+
+import androidx.annotation.Keep
+
+@Keep
+data class ApiResponse(
+    @Keep val ok: Boolean,
+    @Keep val message: String
+)
+
+@Keep
+data class UsernameAvailability(
+    @Keep val available: Boolean = false
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/Attachment.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/Attachment.kt
@@ -0,0 +1,34 @@
+package com.aiwazian.messenger.data
+
+import androidx.annotation.Keep
+import kotlinx.serialization.Serializable
+import com.google.gson.annotations.SerializedName
+
+@Keep
+@Serializable
+data class Attachment(
+    @Keep val id: String,
+    @Keep val messageId: Int = 0,
+    @Keep val chatId: Long = 0,
+    @Keep val name: String,
+    @Keep val url: String = "",
+    @Keep val size: Long,
+    @Keep val mimeType: String? = null
+)
+
+@Keep
+data class FileDownloadUrlResponse(
+    val downloadUrl: String,
+    val name: String,
+    val size: String,
+    val mimeType: String
+)
+
+@Keep
+data class FileUploadInitRequest(val name: String, val size: Long, val mimeType: String)
+
+@Keep
+data class FileUploadInitResponse(val signedUrl: String, val fileId: String)
+
+@Keep
+data class FileUploadConfirmRequest(val fileId: String, val text: String? = null)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/AuthRequest.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/AuthRequest.kt
@@ -0,0 +1,12 @@
+package com.aiwazian.messenger.data
+
+import androidx.annotation.Keep
+
+@Keep
+data class AuthRequest(
+    @Keep val login: String,
+    @Keep val password: String,
+    @Keep val deviceModel: String,
+    @Keep val osVersion: String,
+    @Keep val osName: String
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/AuthResponse.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/AuthResponse.kt
@@ -0,0 +1,9 @@
+package com.aiwazian.messenger.data
+
+import androidx.annotation.Keep
+
+@Keep
+data class AuthResponse(
+    @Keep val token: String,
+    @Keep val userId: String
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/ChangeCloudPasswordRequest.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/ChangeCloudPasswordRequest.kt
@@ -0,0 +1,5 @@
+package com.aiwazian.messenger.data
+
+data class ChangeCloudPasswordRequest(
+    val password: String
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/ChannelInfo.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/ChannelInfo.kt
@@ -0,0 +1,30 @@
+package com.aiwazian.messenger.data
+
+import androidx.annotation.Keep
+import com.aiwazian.messenger.enums.ChannelType
+import com.aiwazian.messenger.interfaces.Profile
+import com.google.gson.annotations.SerializedName
+
+@Keep
+data class ChannelInfo(
+    @Keep override val id: Long = 0,
+    @Keep val ownerId: Long = 0,
+    @Keep val name: String = "",
+    @Keep val bio: String = "",
+    @Keep val subscribers: Int = 0,
+    @Keep val removedUser: Int = 0,
+    @Keep var channelType: Int = ChannelType.PRIVATE.ordinal,
+    @Keep var publicLink: String? = null,
+    @Keep val isSubscribed: Boolean = false
+) : Profile
+
+@Keep
+data class CreateChannelRequest(
+    @SerializedName("name") val name: String,
+    @SerializedName("bio") val bio: String? = null,
+    @SerializedName("channelType") val channelType: String,
+    @SerializedName("username") val username: String? = null
+)
+
+@Keep
+data class CreatedEntityResponse(@SerializedName("id") val id: Long)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/ChatInfo.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/ChatInfo.kt
@@ -0,0 +1,16 @@
+package com.aiwazian.messenger.data
+
+import androidx.annotation.Keep
+import com.google.gson.annotations.SerializedName
+import com.aiwazian.messenger.enums.ChatType
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.Serializer
+
+@Keep
+@Serializable
+data class ChatInfo(
+    @Keep var id: Long = 0,
+    @Keep @SerializedName("name") var chatName: String = "",
+    @Keep var isPinned: Boolean = false,
+    @Keep var lastMessage: Message? = null
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/CustomColors.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/CustomColors.kt
@@ -0,0 +1,16 @@
+package com.aiwazian.messenger.data
+
+import androidx.compose.ui.graphics.Color
+
+data class CustomColors(
+    val secondary: Color,
+    val background: Color,
+    var primary: Color,
+    val text: Color,
+    val textHint: Color,
+    val topAppBarBackground: Color,
+    val sendMessageTimeBackground: Color,
+    val danger: Color,
+    val dangerBackground: Color,
+    val horizontalDivider: Color
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/DeleteChatPayload.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/DeleteChatPayload.kt
@@ -0,0 +1,8 @@
+package com.aiwazian.messenger.data
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class DeleteChatPayload (
+    val chatId: Long
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/DeleteMessagePayload.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/DeleteMessagePayload.kt
@@ -0,0 +1,9 @@
+package com.aiwazian.messenger.data
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class DeleteMessagePayload(
+    val chatId: Long,
+    val messageId: Int
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/DownloadItem.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/DownloadItem.kt
@@ -0,0 +1,15 @@
+package com.aiwazian.messenger.data
+
+import com.aiwazian.messenger.enums.DownloadStatus
+import okhttp3.ResponseBody
+import retrofit2.Call
+
+data class DownloadItem(
+    val fileId: String = "",
+    val url: String,
+    val fileName: String,
+    var progress: Int = 0,
+    var status: DownloadStatus = DownloadStatus.PENDING,
+    var call: Call<ResponseBody>? = null,
+    var onComplete: (() -> Unit)? = null
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/DropdownMenuAction.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/DropdownMenuAction.kt
@@ -0,0 +1,9 @@
+package com.aiwazian.messenger.data
+
+import androidx.compose.ui.graphics.vector.ImageVector
+
+data class DropdownMenuAction(
+    val icon: ImageVector,
+    val text: String,
+    val onClick: () -> Unit
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/FolderInfo.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/FolderInfo.kt
@@ -0,0 +1,10 @@
+package com.aiwazian.messenger.data
+
+import androidx.annotation.Keep
+
+@Keep
+data class FolderInfo(
+    @Keep var id: Int = 0,
+    @Keep var name: String = "",
+    @Keep var chats: List<ChatInfo> = emptyList()
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/GroupInfo.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/GroupInfo.kt
@@ -0,0 +1,20 @@
+package com.aiwazian.messenger.data
+
+import androidx.annotation.Keep
+import com.aiwazian.messenger.interfaces.Profile
+import com.google.gson.annotations.SerializedName
+
+@Keep
+data class GroupInfo(
+    @Keep override val id: Long = 0,
+    @Keep val ownerId: Long = 0,
+    @Keep val name: String = "",
+    @Keep val bio: String = "",
+    @Keep val members: Int = 0
+) : Profile
+
+@Keep
+data class CreateGroupRequest(
+    @SerializedName("name") val name: String,
+    @SerializedName("bio") val bio: String? = null
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/HistoryClearPayload.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/HistoryClearPayload.kt
@@ -0,0 +1,8 @@
+package com.aiwazian.messenger.data
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class HistoryClearPayload(
+    val chatId: String
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/Kanban.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/Kanban.kt
@@ -0,0 +1,60 @@
+package com.aiwazian.messenger.data
+
+import androidx.annotation.Keep
+import com.google.gson.annotations.SerializedName
+import kotlinx.serialization.Serializable
+
+@Keep
+@Serializable
+data class KanbanBoard(
+    val id: Int = 0,
+    val title: String = "",
+    val columns: List<KanbanColumn> = emptyList(),
+    val updatedAt: Long = 0
+)
+
+@Keep
+@Serializable
+data class KanbanColumn(
+    val id: Int = 0,
+    val boardId: Int = 0,
+    val title: String = "",
+    val position: Int = 0,
+    val tasks: List<KanbanTask> = emptyList()
+)
+
+@Keep
+@Serializable
+data class KanbanTask(
+    val id: Int = 0,
+    val columnId: Int = 0,
+    val title: String = "",
+    val description: String? = null,
+    val position: Int = 0,
+    val column: KanbanTaskColumn? = null
+)
+
+@Keep
+@Serializable
+data class KanbanTaskColumn(
+    val board: KanbanBoard = KanbanBoard()
+)
+
+@Keep
+data class KanbanTitleRequest(@SerializedName("title") val title: String)
+
+@Keep
+data class KanbanTaskRequest(
+    @SerializedName("title") val title: String,
+    @SerializedName("description") val description: String? = null
+)
+
+@Keep
+data class KanbanMoveTaskRequest(@SerializedName("columnId") val columnId: Int)
+
+@Keep
+data class SendMessageRequest(
+    @SerializedName("text") val text: String,
+    @SerializedName("kanbanBoardId") val kanbanBoardId: Int? = null,
+    @SerializedName("kanbanTaskId") val kanbanTaskId: Int? = null
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/LocalAccount.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/LocalAccount.kt
@@ -0,0 +1,3 @@
+package com.aiwazian.messenger.data
+
+data class LocalAccount(val id: Long, val isCurrent: Boolean)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/LoginAvailability.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/LoginAvailability.kt
@@ -0,0 +1,8 @@
+package com.aiwazian.messenger.data
+
+import androidx.annotation.Keep
+
+@Keep
+data class LoginAvailability(
+    @Keep val available: Boolean
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/Message.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/Message.kt
@@ -0,0 +1,58 @@
+package com.aiwazian.messenger.data
+
+import androidx.annotation.Keep
+import kotlinx.serialization.Serializable
+import com.google.gson.annotations.SerializedName
+
+@Keep
+@Serializable
+data class Message(
+    @Keep var id: Int = 0,
+    @Keep val senderId: Long = 0,
+    @Keep val chatId: Long = 0,
+    @Keep val text: String? = null,
+    @Keep val sendTime: Long = 0,
+    @Keep var isRead: Boolean = false,
+    @Keep @SerializedName(value = "files", alternate = ["attachments"])
+    val attachments: Array<Attachment> = emptyArray(),
+    @Keep val kanbanBoardId: Int? = null,
+    @Keep val kanbanTaskId: Int? = null,
+    @Keep val kanbanBoard: KanbanBoard? = null,
+    @Keep val kanbanTask: KanbanTask? = null
+) {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+        
+        other as Message
+        
+        if (id != other.id) return false
+        if (senderId != other.senderId) return false
+        if (chatId != other.chatId) return false
+        if (sendTime != other.sendTime) return false
+        if (isRead != other.isRead) return false
+        if (text != other.text) return false
+        if (!attachments.contentEquals(other.attachments)) return false
+        if (kanbanBoardId != other.kanbanBoardId) return false
+        if (kanbanTaskId != other.kanbanTaskId) return false
+        if (kanbanBoard != other.kanbanBoard) return false
+        if (kanbanTask != other.kanbanTask) return false
+        
+        return true
+    }
+    
+    override fun hashCode(): Int {
+        var result = id
+        result = 31 * result + senderId.hashCode()
+        result = 31 * result + chatId.hashCode()
+        result = 31 * result + sendTime.hashCode()
+        result = 31 * result + isRead.hashCode()
+        result = 31 * result + (text?.hashCode() ?: 0)
+        result = 31 * result + attachments.contentHashCode()
+        result = 31 * result + (kanbanBoardId ?: 0)
+        result = 31 * result + (kanbanTaskId ?: 0)
+        result = 31 * result + (kanbanBoard?.hashCode() ?: 0)
+        result = 31 * result + (kanbanTask?.hashCode() ?: 0)
+        return result
+    }
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/NavigationIcon.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/NavigationIcon.kt
@@ -0,0 +1,8 @@
+package com.aiwazian.messenger.data
+
+import androidx.compose.ui.graphics.vector.ImageVector
+
+data class NavigationIcon(
+    val icon: ImageVector,
+    val onClick: () -> Unit
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/Notification.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/Notification.kt
@@ -0,0 +1,7 @@
+package com.aiwazian.messenger.data
+
+data class Notification(
+    val chatId: Long,
+    val title: String,
+    val message: String
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/NotificationChannelInfo.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/NotificationChannelInfo.kt
@@ -0,0 +1,7 @@
+package com.aiwazian.messenger.data
+
+data class NotificationChannelInfo(
+    val id: String,
+    val name: String,
+    val description: String
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/NotificationTokenRequest.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/NotificationTokenRequest.kt
@@ -0,0 +1,8 @@
+package com.aiwazian.messenger.data
+
+import androidx.annotation.Keep
+
+@Keep
+data class NotificationTokenRequest (
+    @Keep val token: String
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/PrivacySettings.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/PrivacySettings.kt
@@ -0,0 +1,13 @@
+package com.aiwazian.messenger.data
+
+import androidx.annotation.Keep
+import com.aiwazian.messenger.enums.PrivacyLevel
+
+@Keep
+data class PrivacySettings(
+    @Keep val bio: Int = PrivacyLevel.Everybody.ordinal,
+    @Keep val dateOfBirth: Int = PrivacyLevel.Everybody.ordinal,
+    @Keep val lastSeen: Int = PrivacyLevel.Everybody.ordinal,
+    @Keep val messages: Int = PrivacyLevel.Everybody.ordinal,
+    @Keep val invites: Int = PrivacyLevel.Everybody.ordinal
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/ReadMessagePayload.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/ReadMessagePayload.kt
@@ -0,0 +1,9 @@
+package com.aiwazian.messenger.data
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class ReadMessagePayload(
+    val chatId: Long,
+    val messageId: Int
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/RegisterRequest.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/RegisterRequest.kt
@@ -0,0 +1,11 @@
+package com.aiwazian.messenger.data
+
+import androidx.annotation.Keep
+
+@Keep
+data class RegisterRequest (
+    @Keep val login: String,
+    @Keep val password: String,
+    @Keep val firstName: String,
+    @Keep val lastName: String? = null,
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/ScreenEntry.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/ScreenEntry.kt
@@ -0,0 +1,8 @@
+package com.aiwazian.messenger.data
+
+import androidx.compose.runtime.Composable
+
+data class ScreenEntry(
+    val content: @Composable () -> Unit,
+    val canGoBackBySwipe: Boolean = true
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/SearchInfo.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/SearchInfo.kt
@@ -0,0 +1,10 @@
+package com.aiwazian.messenger.data
+
+import androidx.annotation.Keep
+
+@Keep
+data class SearchInfo(
+    @Keep val chatId: Long,
+    @Keep val name: String,
+    @Keep val publicLink: String
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/SessionInfo.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/SessionInfo.kt
@@ -0,0 +1,12 @@
+package com.aiwazian.messenger.data
+
+import androidx.annotation.Keep
+import kotlinx.serialization.Serializable
+
+@Keep
+@Serializable
+data class SessionInfo(
+    @Keep val id: Int = 0,
+    @Keep var deviceName: String = "",
+    @Keep val createdAt: String = "",
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/TopBarAction.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/TopBarAction.kt
@@ -0,0 +1,9 @@
+package com.aiwazian.messenger.data
+
+import androidx.compose.ui.graphics.vector.ImageVector
+
+data class TopBarAction(
+    val icon: ImageVector,
+    val onClick: (() -> Unit)? = null,
+    val dropdownActions: List<DropdownMenuAction> = emptyList()
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/UserInfo.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/UserInfo.kt
@@ -0,0 +1,29 @@
+package com.aiwazian.messenger.data
+
+import androidx.annotation.Keep
+import com.google.gson.annotations.SerializedName
+import com.aiwazian.messenger.interfaces.Profile
+
+@Keep
+data class UserInfo(
+    @Keep override var id: Long = 0,
+    @Keep var firstName: String = "",
+    @Keep var lastName: String = "",
+    @Keep var username: String? = null,
+    @Keep var bio: String = "",
+    @Keep var dateOfBirth: Long? = null,
+): Profile
+
+@Keep
+data class UpdateProfileRequest(
+    @SerializedName("firstName") val firstName: String,
+    @SerializedName("lastName") val lastName: String? = null,
+    @SerializedName("username") val username: String? = null,
+    @SerializedName("bio") val bio: String? = null,
+    @SerializedName("dateOfBirth") val dateOfBirth: Long? = null
+)
+
+@Keep
+data class UpdateUsernameRequest(
+    @SerializedName("username") val username: String?
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/data/WebSocketMessage.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/data/WebSocketMessage.kt
@@ -0,0 +1,13 @@
+package com.aiwazian.messenger.data
+
+import androidx.annotation.Keep
+import com.aiwazian.messenger.enums.WebSocketAction
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.json.JsonObject
+
+@Keep
+@Serializable
+data class WebSocketMessage(
+    @Keep val action: WebSocketAction,
+    @Keep val data: JsonObject
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/AppDatabase.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/AppDatabase.kt
@@ -0,0 +1,40 @@
+package com.aiwazian.messenger.database
+
+import androidx.room.Database
+import androidx.room.RoomDatabase
+import com.aiwazian.messenger.database.dao.AccountDao
+import com.aiwazian.messenger.database.dao.ChannelDao
+import com.aiwazian.messenger.database.dao.ChatDao
+import com.aiwazian.messenger.database.dao.FolderChatDao
+import com.aiwazian.messenger.database.dao.FolderDao
+import com.aiwazian.messenger.database.dao.GroupDao
+import com.aiwazian.messenger.database.dao.UserDao
+import com.aiwazian.messenger.database.entity.AccountEntity
+import com.aiwazian.messenger.database.entity.AttachmentEntity
+import com.aiwazian.messenger.database.entity.ChannelEntity
+import com.aiwazian.messenger.database.entity.FolderChatEntity
+import com.aiwazian.messenger.database.entity.FolderEntity
+import com.aiwazian.messenger.database.entity.GroupEntity
+import com.aiwazian.messenger.database.entity.MessageEntity
+import com.aiwazian.messenger.database.entity.UserEntity
+
+@Database(
+    entities = [FolderEntity::class, FolderChatEntity::class, UserEntity::class, MessageEntity::class, ChannelEntity::class, AccountEntity::class, GroupEntity::class, AttachmentEntity::class],
+    version = 7
+)
+abstract class AppDatabase : RoomDatabase() {
+    
+    abstract fun folderDao(): FolderDao
+    
+    abstract fun folderChatDao(): FolderChatDao
+    
+    abstract fun userDao(): UserDao
+    
+    abstract fun channelDao(): ChannelDao
+    
+    abstract fun accountDao(): AccountDao
+    
+    abstract fun groupDao(): GroupDao
+    
+    abstract fun chatDao(): ChatDao
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/DatabaseModule.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/DatabaseModule.kt
@@ -0,0 +1,67 @@
+package com.aiwazian.messenger.database
+
+import android.content.Context
+import androidx.room.Room
+import com.aiwazian.messenger.database.dao.AccountDao
+import com.aiwazian.messenger.database.dao.ChannelDao
+import com.aiwazian.messenger.database.dao.ChatDao
+import com.aiwazian.messenger.database.dao.FolderChatDao
+import com.aiwazian.messenger.database.dao.FolderDao
+import com.aiwazian.messenger.database.dao.GroupDao
+import com.aiwazian.messenger.database.dao.UserDao
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.components.SingletonComponent
+import javax.inject.Singleton
+
+@Module
+@InstallIn(SingletonComponent::class)
+object DatabaseModule {
+    
+    @Provides
+    @Singleton
+    fun provideAppDatabase(@ApplicationContext context: Context): AppDatabase {
+        return Room.databaseBuilder(
+            context,
+            AppDatabase::class.java,
+            "app_database"
+        ).fallbackToDestructiveMigration(true).build()
+    }
+    
+    @Provides
+    fun provideFolderDao(database: AppDatabase): FolderDao {
+        return database.folderDao()
+    }
+    
+    @Provides
+    fun provideFolderChatDao(database: AppDatabase): FolderChatDao {
+        return database.folderChatDao()
+    }
+    
+    @Provides
+    fun provideUserDao(database: AppDatabase): UserDao {
+        return database.userDao()
+    }
+    
+    @Provides
+    fun provideChannelDao(database: AppDatabase): ChannelDao {
+        return database.channelDao()
+    }
+    
+    @Provides
+    fun provideAccount(database: AppDatabase): AccountDao {
+        return database.accountDao()
+    }
+    
+    @Provides
+    fun provideGroup(database: AppDatabase): GroupDao {
+        return database.groupDao()
+    }
+    
+    @Provides
+    fun provideChat(database: AppDatabase): ChatDao {
+        return database.chatDao()
+    }
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/dao/AccountDao.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/dao/AccountDao.kt
@@ -0,0 +1,23 @@
+package com.aiwazian.messenger.database.dao
+
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import com.aiwazian.messenger.database.entity.AccountEntity
+
+@Dao
+interface AccountDao {
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun add(account: AccountEntity)
+    
+    @Query("SELECT * FROM account WHERE id = :id")
+    suspend fun get(id: Int): AccountEntity?
+    
+    @Query("SELECT * FROM account WHERE isCurrent = 1")
+    suspend fun getMe(): AccountEntity?
+    
+    @Delete
+    suspend fun delete(account: AccountEntity)
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/dao/ChannelDao.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/dao/ChannelDao.kt
@@ -0,0 +1,28 @@
+package com.aiwazian.messenger.database.dao
+
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import androidx.room.Update
+import com.aiwazian.messenger.database.entity.ChannelEntity
+import com.aiwazian.messenger.types.EntityId
+
+@Dao
+interface ChannelDao {
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun insert(channelEntity: ChannelEntity)
+    
+    @Query("SELECT * FROM channel")
+    suspend fun getAll(): List<ChannelEntity>
+    
+    @Query("SELECT * FROM channel WHERE id = :id")
+    suspend fun get(id: Long): ChannelEntity?
+    
+    @Update
+    suspend fun update(channelEntity: ChannelEntity)
+    
+    @Query("DELETE FROM 'channel' WHERE id = :id")
+    suspend fun delete(id: Long)
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/dao/ChatDao.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/dao/ChatDao.kt
@@ -0,0 +1,18 @@
+package com.aiwazian.messenger.database.dao
+
+import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import com.aiwazian.messenger.database.entity.AttachmentEntity
+
+@Dao
+interface ChatDao {
+    
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun save(attachment: AttachmentEntity)
+    
+    @Query("SELECT * FROM attachment WHERE id = :id")
+    suspend fun get(id: String): AttachmentEntity
+    
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/dao/FolderChatDao.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/dao/FolderChatDao.kt
@@ -0,0 +1,33 @@
+package com.aiwazian.messenger.database.dao
+
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import com.aiwazian.messenger.database.entity.FolderChatEntity
+import com.aiwazian.messenger.database.entity.MessageEntity
+
+@Dao
+interface FolderChatDao {
+    @Query("SELECT * FROM folderChat WHERE folderId = :id")
+    suspend fun getAll(id: Int): List<FolderChatEntity>
+    
+    @Query("SELECT * FROM folderChat WHERE id = :id")
+    suspend fun get(id: Long): FolderChatEntity?
+    
+    @Query("SELECT * FROM message WHERE chatId = :id")
+    suspend fun getMessages(id: Long): List<MessageEntity>
+    
+    @Insert(onConflict = OnConflictStrategy.Companion.REPLACE)
+    suspend fun insertAll(chatEntities: List<FolderChatEntity>)
+    
+    @Insert(onConflict = OnConflictStrategy.Companion.REPLACE)
+    suspend fun insert(chatEntity: FolderChatEntity)
+    
+    @Delete
+    suspend fun delete(folderChatEntity: FolderChatEntity)
+    
+    @Query("DELETE FROM folderChat WHERE id = :id")
+    suspend fun deleteById(id: Long)
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/dao/FolderDao.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/dao/FolderDao.kt
@@ -0,0 +1,23 @@
+package com.aiwazian.messenger.database.dao
+
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import com.aiwazian.messenger.database.entity.FolderEntity
+
+@Dao
+interface FolderDao {
+    @Query("SELECT * FROM folder")
+    suspend fun getAll(): List<FolderEntity>
+    
+    @Insert(onConflict = OnConflictStrategy.Companion.REPLACE)
+    suspend fun insertAll(folderEntities: List<FolderEntity>)
+    
+    @Insert(onConflict = OnConflictStrategy.Companion.REPLACE)
+    suspend fun insert(folderEntities: FolderEntity)
+    
+    @Delete
+    suspend fun delete(folderEntity: FolderEntity)
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/dao/GroupDao.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/dao/GroupDao.kt
@@ -0,0 +1,27 @@
+package com.aiwazian.messenger.database.dao
+
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import androidx.room.Update
+import com.aiwazian.messenger.database.entity.GroupEntity
+
+@Dao
+interface GroupDao {
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun insert(groupEntity: GroupEntity)
+    
+    @Query("SELECT * FROM 'group' WHERE id = :id")
+    suspend fun get(id: Long): GroupEntity?
+    
+    @Update
+    suspend fun update(groupEntity: GroupEntity)
+    
+    @Delete
+    suspend fun remove(groupEntity: GroupEntity)
+    
+    @Query("DELETE FROM 'group' WHERE id = :id")
+    suspend fun delete(id: Long)
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/dao/UserDao.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/dao/UserDao.kt
@@ -0,0 +1,20 @@
+package com.aiwazian.messenger.database.dao
+
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import com.aiwazian.messenger.database.entity.UserEntity
+
+@Dao
+interface UserDao {
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun insert(userEntity: UserEntity)
+    
+    @Query("SELECT * FROM user WHERE id = :id")
+    suspend fun get(id: Long): UserEntity?
+    
+    @Delete
+    suspend fun delete(userEntity: UserEntity)
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/entity/AccountEntity.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/entity/AccountEntity.kt
@@ -0,0 +1,7 @@
+package com.aiwazian.messenger.database.entity
+
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity("account")
+data class AccountEntity(@PrimaryKey val id: Long, val isCurrent: Boolean)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/entity/AttachmentEntity.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/entity/AttachmentEntity.kt
@@ -0,0 +1,13 @@
+package com.aiwazian.messenger.database.entity
+
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity("attachment")
+data class AttachmentEntity(
+    @PrimaryKey val id: String,
+    val messageId: Int,
+    val name: String,
+    val url: String,
+    val size: Long
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/entity/ChannelEntity.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/entity/ChannelEntity.kt
@@ -0,0 +1,17 @@
+package com.aiwazian.messenger.database.entity
+
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity("channel")
+data class ChannelEntity(
+    @PrimaryKey val id: Long,
+    var name: String,
+    var bio: String = "",
+    val ownerId: Long,
+    val subscribers: Int,
+    val removedUser: Int,
+    val channelType: Int,
+    val publicLink: String?,
+    val isSubscribed: Boolean = false
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/entity/FolderChatEntity.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/entity/FolderChatEntity.kt
@@ -0,0 +1,13 @@
+package com.aiwazian.messenger.database.entity
+
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity("folderChat")
+data class FolderChatEntity(
+    @PrimaryKey var id: Long,
+    val folderId: Int = 0,
+    var chatName: String = "",
+    var isPinned: Boolean = false,
+    var lastMessageId: Int? = null
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/entity/FolderEntity.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/entity/FolderEntity.kt
@@ -0,0 +1,10 @@
+package com.aiwazian.messenger.database.entity
+
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity(tableName = "folder")
+data class FolderEntity(
+    @PrimaryKey val id: Int,
+    val folderName: String = ""
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/entity/GroupEntity.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/entity/GroupEntity.kt
@@ -0,0 +1,13 @@
+package com.aiwazian.messenger.database.entity
+
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity("group")
+data class GroupEntity(
+    @PrimaryKey val id: Long,
+    val ownerId: Long,
+    var name: String,
+    var bio: String,
+    val members: Int
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/entity/MessageEntity.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/entity/MessageEntity.kt
@@ -0,0 +1,14 @@
+package com.aiwazian.messenger.database.entity
+
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity("message")
+data class MessageEntity(
+    @PrimaryKey var id: Int,
+    val senderId: Long,
+    val chatId: Long,
+    val text: String? = null,
+    val sendTime: Long = 0,
+    var isRead: Boolean = false
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/entity/UserEntity.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/entity/UserEntity.kt
@@ -0,0 +1,14 @@
+package com.aiwazian.messenger.database.entity
+
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity("user")
+data class UserEntity(
+    @PrimaryKey var id: Long,
+    var firstName: String = "",
+    var lastName: String = "",
+    var username: String? = null,
+    var bio: String = "",
+    var dateOfBirth: Long? = null
+)
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/mappers/AccountMappers.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/mappers/AccountMappers.kt
@@ -0,0 +1,18 @@
+package com.aiwazian.messenger.database.mappers
+
+import com.aiwazian.messenger.data.LocalAccount
+import com.aiwazian.messenger.database.entity.AccountEntity
+
+fun LocalAccount.toEntity(): AccountEntity {
+    return AccountEntity(
+        id = this.id,
+        isCurrent = this.isCurrent
+    )
+}
+
+fun AccountEntity.toLocal(): LocalAccount {
+    return LocalAccount(
+        id = this.id,
+        isCurrent = this.isCurrent
+    )
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/mappers/AttachmentMappers.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/mappers/AttachmentMappers.kt
@@ -0,0 +1,24 @@
+package com.aiwazian.messenger.database.mappers
+
+import com.aiwazian.messenger.data.Attachment
+import com.aiwazian.messenger.database.entity.AttachmentEntity
+
+fun Attachment.toEntity(): AttachmentEntity {
+    return AttachmentEntity(
+        id = this.id,
+        messageId = this.messageId,
+        name = this.name,
+        url = this.url,
+        size = this.size
+    )
+}
+
+fun AttachmentEntity.toModel(): Attachment {
+    return Attachment(
+        id = this.id,
+        messageId = this.messageId,
+        name = this.name,
+        url = this.url,
+        size = this.size
+    )
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/mappers/ChannelMappers.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/mappers/ChannelMappers.kt
@@ -0,0 +1,32 @@
+package com.aiwazian.messenger.database.mappers
+
+import com.aiwazian.messenger.data.ChannelInfo
+import com.aiwazian.messenger.database.entity.ChannelEntity
+
+fun ChannelInfo.toEntity(): ChannelEntity {
+    return ChannelEntity(
+        id = this.id,
+        name = this.name,
+        bio = this.bio,
+        ownerId = this.ownerId,
+        subscribers = this.subscribers,
+        removedUser = this.removedUser,
+        channelType = this.channelType,
+        publicLink = this.publicLink,
+        isSubscribed = this.isSubscribed
+    )
+}
+
+fun ChannelEntity.toChannel(): ChannelInfo {
+    return ChannelInfo(
+        id = this.id,
+        name = this.name,
+        bio = this.bio,
+        ownerId = this.ownerId,
+        subscribers = this.subscribers,
+        removedUser = this.removedUser,
+        channelType = this.channelType,
+        publicLink = this.publicLink,
+        isSubscribed = this.isSubscribed
+    )
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/mappers/FolderChatMappers.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/mappers/FolderChatMappers.kt
@@ -0,0 +1,26 @@
+package com.aiwazian.messenger.database.mappers
+
+import com.aiwazian.messenger.data.ChatInfo
+import com.aiwazian.messenger.database.entity.FolderChatEntity
+import com.aiwazian.messenger.enums.ChatType
+
+fun ChatInfo.toEntity(
+    folderId: Int,
+    lastMessageId: Int? = null
+): FolderChatEntity {
+    return FolderChatEntity(
+        id = this.id,
+        chatName = this.chatName,
+        isPinned = this.isPinned,
+        folderId = folderId,
+        lastMessageId = lastMessageId
+    )
+}
+
+fun FolderChatEntity.toChat(): ChatInfo {
+    return ChatInfo(
+        id = this.id,
+        chatName = this.chatName,
+        isPinned = this.isPinned
+    )
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/mappers/FolderMappers.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/mappers/FolderMappers.kt
@@ -0,0 +1,17 @@
+package com.aiwazian.messenger.database.mappers
+import com.aiwazian.messenger.data.FolderInfo
+import com.aiwazian.messenger.database.entity.FolderEntity
+
+fun FolderInfo.toEntity(): FolderEntity {
+    return FolderEntity(
+        id = this.id,
+        folderName = this.name
+    )
+}
+
+fun FolderEntity.toFolder(): FolderInfo {
+    return FolderInfo(
+        id = this.id,
+        name = this.folderName
+    )
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/mappers/GroupMappers.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/mappers/GroupMappers.kt
@@ -0,0 +1,24 @@
+package com.aiwazian.messenger.database.mappers
+
+import com.aiwazian.messenger.data.GroupInfo
+import com.aiwazian.messenger.database.entity.GroupEntity
+
+fun GroupInfo.toEntity(): GroupEntity {
+    return GroupEntity(
+        id = this.id,
+        name = this.name,
+        bio = this.bio,
+        ownerId = this.ownerId,
+        members = this.members
+    )
+}
+
+fun GroupEntity.toGroup(): GroupInfo {
+    return GroupInfo(
+        id = this.id,
+        name = this.name,
+        bio = this.bio,
+        ownerId = this.ownerId,
+        members = this.members
+    )
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/mappers/MessageMappers.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/mappers/MessageMappers.kt
@@ -0,0 +1,26 @@
+package com.aiwazian.messenger.database.mappers
+
+import com.aiwazian.messenger.data.Message
+import com.aiwazian.messenger.database.entity.MessageEntity
+
+fun Message.toEntity(): MessageEntity {
+    return MessageEntity(
+        id = this.id,
+        senderId = this.senderId,
+        chatId = this.chatId,
+        text = this.text,
+        sendTime = this.sendTime,
+        isRead = this.isRead
+    )
+}
+
+fun MessageEntity.toMessage(): Message {
+    return Message(
+        id = this.id,
+        senderId = this.senderId,
+        chatId = this.chatId,
+        text = this.text,
+        sendTime = this.sendTime,
+        isRead = this.isRead
+    )
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/mappers/UserMappers.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/mappers/UserMappers.kt
@@ -0,0 +1,26 @@
+package com.aiwazian.messenger.database.mappers
+
+import com.aiwazian.messenger.data.UserInfo
+import com.aiwazian.messenger.database.entity.UserEntity
+
+fun UserInfo.toEntity(): UserEntity {
+    return UserEntity(
+        id = this.id,
+        firstName = this.firstName,
+        lastName = this.lastName,
+        username = this.username,
+        bio = this.bio,
+        dateOfBirth = this.dateOfBirth
+    )
+}
+
+fun UserEntity.toUser(): UserInfo {
+    return UserInfo(
+        id = this.id,
+        firstName = this.firstName,
+        lastName = this.lastName,
+        username = this.username,
+        bio = this.bio,
+        dateOfBirth = this.dateOfBirth
+    )
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/repository/AccountRepository.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/repository/AccountRepository.kt
@@ -0,0 +1,12 @@
+package com.aiwazian.messenger.database.repository
+
+import com.aiwazian.messenger.data.LocalAccount
+import com.aiwazian.messenger.database.dao.AccountDao
+import com.aiwazian.messenger.database.mappers.toLocal
+import javax.inject.Inject
+
+class AccountRepository @Inject constructor(private val accountDao: AccountDao) {
+    suspend fun getCurrent(): LocalAccount? {
+        return accountDao.getMe()?.toLocal()
+    }
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/repository/ChannelRepository.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/repository/ChannelRepository.kt
@@ -0,0 +1,179 @@
+package com.aiwazian.messenger.database.repository
+
+import android.util.Log
+import com.aiwazian.messenger.data.ChannelInfo
+import com.aiwazian.messenger.data.UserInfo
+import com.aiwazian.messenger.database.dao.ChannelDao
+import com.aiwazian.messenger.database.mappers.toChannel
+import com.aiwazian.messenger.database.mappers.toEntity
+import com.aiwazian.messenger.services.ChannelService
+import com.aiwazian.messenger.types.EntityId
+import javax.inject.Inject
+
+class ChannelRepository @Inject constructor(
+    private val channelService: ChannelService,
+    private val channelDao: ChannelDao
+) {
+    
+    suspend fun get(id: Long): ChannelInfo? {
+        try {
+            val channel = channelService.get(id)
+            
+            if (channel != null) {
+                channelDao.insert(channel.toEntity())
+                return channel
+            }
+            
+            return channelDao.get(id)?.toChannel()
+        } catch (e: Exception) {
+            Log.e(
+                "ChannelRepository",
+                "Ошибка при получении канала",
+                e
+            )
+        }
+        
+        val localChannel = channelDao.get(id)
+        
+        return localChannel?.toChannel()
+    }
+    
+    suspend fun create(channelInfo: ChannelInfo): Long? {
+        try {
+            val createdId = channelService.create(channelInfo)
+            
+            if (createdId == null) {
+                return null
+            }
+            
+            channelDao.insert(channelInfo.toEntity())
+            
+            return createdId
+        } catch (e: Exception) {
+            Log.e(
+                "ChannelRepository",
+                "Ошибка при создании канала",
+                e
+            )
+            
+            return null
+        }
+    }
+    
+    suspend fun save(channelInfo: ChannelInfo): Long? {
+        try {
+            val savedId = channelService.save(channelInfo)
+            
+            if (savedId == null) {
+                return null
+            }
+            
+            channelDao.insert(channelInfo.toEntity())
+            
+            return savedId
+        } catch (e: Exception) {
+            Log.e(
+                "ChannelRepository",
+                "Ошибка при сохранении канала",
+                e
+            )
+            
+            return null
+        }
+    }
+    
+    suspend fun delete(id: Long): Boolean {
+        try {
+            val isDeleted = channelService.delete(id)
+            
+            if (isDeleted) {
+                channelDao.delete(id)
+            }
+            
+            return isDeleted
+        } catch (e: Exception) {
+            Log.e(
+                "ChannelRepository",
+                "Ошибка при удалении канала",
+                e
+            )
+            
+            return false
+        }
+    }
+    
+    suspend fun getSubscribers(id: Long): List<UserInfo> {
+        try {
+            val subscribers = channelService.getSubscribers(id)
+            
+            return subscribers ?: emptyList()
+        } catch (e: Exception) {
+            Log.e(
+                "ChannelRepository",
+                "Ошибка при получении подписчиков канала",
+                e
+            )
+            
+            return emptyList()
+        }
+    }
+    
+    suspend fun join(id: Long): Boolean {
+        try {
+            channelService.join(id)
+            
+            val channel = channelDao.get(id)
+            
+            if (channel != null) {
+                channelDao.update(channel.copy(isSubscribed = true))
+            }
+            
+            return true
+        } catch (e: Exception) {
+            Log.e(
+                "ChannelRepository",
+                "Ошибка при подписке на канал",
+                e
+            )
+            
+            return false
+        }
+    }
+    
+    suspend fun checkIsBusyPublicLink(link: String): Boolean? {
+        return try {
+            channelService.isBusyPublicLick(link)
+        } catch (e: Exception) {
+            Log.e(
+                "ChannelRepository",
+                "Ошибка при проверке публичной ссылки канала",
+                e
+            )
+            
+            null
+        }
+    }
+    
+    suspend fun leave(id: Long): Boolean {
+        try {
+            val channel = channelDao.get(id)
+            
+            if (channel != null) {
+                channelDao.update(channel.copy(isSubscribed = false))
+            }
+            
+            channelService.leave(id)
+            
+            return true
+        } catch (e: Exception) {
+            Log.e(
+                "ChannelRepository",
+                "Ошибка при отписке от канала",
+                e
+            )
+            
+            return false
+        }
+    }
+    
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/repository/ChatRepository.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/repository/ChatRepository.kt
@@ -0,0 +1,166 @@
+package com.aiwazian.messenger.database.repository
+
+import android.util.Log
+import com.aiwazian.messenger.data.Attachment
+import com.aiwazian.messenger.data.ChatInfo
+import com.aiwazian.messenger.data.Message
+import com.aiwazian.messenger.database.dao.ChatDao
+import com.aiwazian.messenger.database.dao.FolderChatDao
+import com.aiwazian.messenger.database.mappers.toChat
+import com.aiwazian.messenger.database.mappers.toEntity
+import com.aiwazian.messenger.database.mappers.toMessage
+import com.aiwazian.messenger.database.mappers.toModel
+import com.aiwazian.messenger.services.ChatService
+import javax.inject.Inject
+
+class ChatRepository @Inject constructor(
+    private val chatService: ChatService,
+    private val folderChatDao: FolderChatDao,
+    private val chatDao: ChatDao
+) {
+    
+    suspend fun get(id: Long): ChatInfo? {
+        try {
+            val chat = chatService.getChatInfo(id)
+            
+            if (chat != null) {
+                return chat
+            }
+        } catch (e: Exception) {
+            Log.e(
+                "ChatRepository",
+                "Ошибка при получении информации о чате",
+                e
+            )
+        }
+        
+        val localChat = folderChatDao.get(id)
+        
+        return localChat?.toChat()
+    }
+    
+    suspend fun getMessages(id: Long): List<Message> {
+        try {
+            val messages = chatService.getChatMessages(id)
+            
+            if (messages != null) {
+                return messages
+            }
+        } catch (e: Exception) {
+            Log.e(
+                "ChatRepository",
+                "Ошибка при получении сообщений",
+                e
+            )
+        }
+        
+        val localMessages = folderChatDao.getMessages(id)
+        
+        if (localMessages.isEmpty()) {
+            return emptyList()
+        }
+        
+        return localMessages.map { it.toMessage() }
+    }
+    
+    suspend fun getLastMessage(id: Long): Message? {
+        return chatService.getChatLastMessage(id)
+    }
+    
+    suspend fun sendMessage(chatId: Long, message: Message): Message? {
+        return chatService.sendMessage(chatId, message)
+    }
+    
+    suspend fun saveAttachment(attachment: Attachment) {
+        chatDao.save(attachment.toEntity())
+    }
+    
+    suspend fun getAttachment(id: String): Attachment {
+        return chatDao.get(id).toModel()
+    }
+    
+    suspend fun makeAsRead(
+        chatId: Long,
+        messageId: Int
+    ): Boolean {
+        return chatService.makeAsReadMessage(
+            chatId,
+            messageId
+        )
+    }
+    
+    suspend fun deleteMessage(
+        chatId: Long,
+        messageId: Int,
+        deleteForAll: Boolean
+    ): Boolean {
+        try {
+            return chatService.deleteMessage(
+                chatId,
+                messageId,
+                deleteForAll
+            )
+        } catch (e: Exception) {
+            Log.e(
+                "ChatRepository",
+                "Ошибка при удалени сообщения",
+                e
+            )
+            
+            return false
+        }
+    }
+    
+    suspend fun deleteChat(
+        chatId: Long
+    ) {
+        try {
+            folderChatDao.deleteById(chatId)
+            
+        } catch (e: Exception) {
+            Log.e(
+                "ChatRepository",
+                "Ошибка при удалении чата",
+                e
+            )
+        }
+    }
+    
+    suspend fun deleteChatMessages(
+        chatId: Long,
+        deleteForReceiver: Boolean
+    ): Boolean {
+        return chatService.deleteChatMessages(
+            chatId,
+            deleteForReceiver
+        )
+    }
+    
+    suspend fun pin(
+        chatId: Long,
+        folderId: Int
+    ): Boolean {
+        return chatService.pin(
+            chatId,
+            folderId
+        )
+    }
+    
+    suspend fun unpin(
+        chatId: Long,
+        folderId: Int
+    ): Boolean {
+        return chatService.unpin(
+            chatId,
+            folderId
+        )
+    }
+    
+    suspend fun archive(id: Long): Boolean {
+        return chatService.archiveChat(id)
+    }
+    
+    suspend fun unarchive(id: Long): Boolean {
+        return chatService.unarchiveChat(id)
+    }
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/repository/FolderRepository.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/repository/FolderRepository.kt
@@ -0,0 +1,110 @@
+package com.aiwazian.messenger.database.repository
+
+import android.util.Log
+import com.aiwazian.messenger.api.RetrofitInstance
+import com.aiwazian.messenger.data.ChatInfo
+import com.aiwazian.messenger.data.FolderInfo
+import com.aiwazian.messenger.database.dao.FolderChatDao
+import com.aiwazian.messenger.database.dao.FolderDao
+import com.aiwazian.messenger.database.mappers.toEntity
+import com.aiwazian.messenger.database.mappers.toChat
+import com.aiwazian.messenger.database.mappers.toFolder
+import com.aiwazian.messenger.services.FolderService
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.update
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class FolderRepository @Inject constructor(
+    private val folderService: FolderService,
+    private val folderDao: FolderDao,
+    private val folderChatDao: FolderChatDao
+) {
+    
+    private val _folders = MutableStateFlow<List<FolderInfo>>(emptyList())
+    val folders = _folders.asStateFlow()
+    
+    suspend fun loadFolders() {
+        val localFolderEntities = folderDao.getAll()
+        
+        val localFolders = localFolderEntities.map { it.toFolder() }
+        
+        _folders.update {
+            localFolders.map { folder ->
+                folder.chats = folderChatDao.getAll(folder.id).map { it.toChat() }
+                folder
+            }
+        }
+        
+        try {
+            val folders = folderService.getAll().orEmpty()
+            val chatsResponse = RetrofitInstance.api.getUnarchivedChats()
+            if (!chatsResponse.isSuccessful) return
+            val response = chatsResponse.body().orEmpty()
+            
+            val chatFolderInfos = listOf(
+                FolderInfo(
+                    id = 0,
+                    name = "Все чаты",
+                    chats = response
+                )
+            ) + folders
+            
+            _folders.update { chatFolderInfos }
+            
+            val folderEntities = _folders.value.map { it.toEntity() }
+            folderDao.insertAll(folderEntities)
+            
+            _folders.value.forEach { folder ->
+                val chatEntities = folder.chats.map { it.toEntity(folder.id) }
+                folderChatDao.insertAll(chatEntities)
+            }
+        } catch (e: Exception) {
+            Log.e(
+                "FolderRepository",
+                "Ошибка при получении папок с чатами",
+                e
+            )
+        }
+    }
+    
+    fun getFolderChats(folderId: Int): List<ChatInfo> {
+        return _folders.value.find { it.id == folderId }?.chats ?: emptyList()
+    }
+    
+    suspend fun saveFolder(folderInfo: FolderInfo) {
+        if (folderInfo.id == 0) {
+            folderInfo.id = (_folders.value.maxOfOrNull { it.id } ?: 0) + 1
+        }
+        
+        _folders.update { currentFolders ->
+            val existingIndex = currentFolders.indexOfFirst { it.id == folderInfo.id }
+            
+            if (existingIndex != -1) {
+                currentFolders.toMutableList().apply {
+                    this[existingIndex] = folderInfo
+                }
+            } else {
+                currentFolders + folderInfo
+            }
+        }
+        folderDao.insertAll(listOf(folderInfo.toEntity()))
+        folderChatDao.insertAll(folderInfo.chats.map { it.toEntity(folderInfo.id) })
+    }
+    
+    suspend fun remove(folderId: Int): Boolean {
+        val folder = _folders.value.find { it.id == folderId }?.toEntity()
+        
+        if (folder == null) {
+            return false
+        }
+        
+        _folders.update { it.filter { it -> it.id != folderId } }
+        
+        folderDao.delete(folder)
+        
+        return true
+    }
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/repository/GroupRepository.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/repository/GroupRepository.kt
@@ -0,0 +1,78 @@
+package com.aiwazian.messenger.database.repository
+
+import android.util.Log
+import com.aiwazian.messenger.data.GroupInfo
+import com.aiwazian.messenger.database.dao.GroupDao
+import com.aiwazian.messenger.database.mappers.toEntity
+import com.aiwazian.messenger.database.mappers.toGroup
+import com.aiwazian.messenger.services.GroupService
+import javax.inject.Inject
+
+class GroupRepository @Inject constructor(
+    private val groupService: GroupService,
+    private val groupDao: GroupDao
+) {
+    
+    suspend fun create(groupInfo: GroupInfo): Long? {
+        try {
+            val createdId = groupService.create(groupInfo)
+            
+            if (createdId == null) {
+                return null
+            }
+            
+            groupDao.insert(groupInfo.toEntity())
+            
+            return createdId
+        } catch (e: Exception) {
+            Log.e(
+                "GroupRepository",
+                "Ошибка при создании канала",
+                e
+            )
+            
+            return null
+        }
+    }
+    
+    suspend fun get(id: Long): GroupInfo? {
+        try {
+            val group = groupService.get(id)
+            
+            if (group != null) {
+                groupDao.insert(group.toEntity())
+                return group
+            }
+            
+            return groupDao.get(id)?.toGroup()
+        } catch (e: Exception) {
+            Log.e(
+                "GroupRepository",
+                "Ошибка при получении группы",
+                e
+            )
+            
+            return null
+        }
+    }
+    
+    suspend fun delete(id: Long): Boolean {
+        try {
+            val isDeleted = groupService.delete(id)
+            
+            if (isDeleted) {
+                groupDao.delete(id)
+            }
+            
+            return isDeleted
+        } catch (e: Exception) {
+            Log.e(
+                "GroupRepository",
+                "Ошибка при получении участников группы",
+                e
+            )
+            
+            return false
+        }
+    }
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/database/repository/UserRepository.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/database/repository/UserRepository.kt
@@ -0,0 +1,88 @@
+package com.aiwazian.messenger.database.repository
+
+import android.util.Log
+import com.aiwazian.messenger.api.RetrofitInstance
+import com.aiwazian.messenger.data.UserInfo
+import com.aiwazian.messenger.database.dao.AccountDao
+import com.aiwazian.messenger.database.dao.UserDao
+import com.aiwazian.messenger.database.entity.AccountEntity
+import com.aiwazian.messenger.database.mappers.toEntity
+import com.aiwazian.messenger.database.mappers.toUser
+import com.aiwazian.messenger.services.UserService
+import javax.inject.Inject
+
+class UserRepository @Inject constructor(
+    private val userService: UserService,
+    private val userDao: UserDao,
+    private val accountDao: AccountDao
+) {
+    
+    suspend fun getMe(): UserInfo? {
+        try {
+            val response = RetrofitInstance.api.getMe()
+            
+            val user = response.body()
+            
+            if (user != null) {
+                val userEntity = user.toEntity()
+                userDao.insert(userEntity)
+                
+                val accountEntity = AccountEntity(id = userEntity.id, isCurrent = true)
+                accountDao.add(accountEntity)
+                
+                return user
+            }
+        } catch (e: Exception) {
+            Log.e(
+                "UserRepository",
+                "Ошибка при запросе Get Me",
+                e
+            )
+        }
+        
+        val accountEntity = accountDao.getMe()
+        
+        if (accountEntity == null) {
+            return null
+        }
+        
+        val user = userDao.get(accountEntity.id)
+        
+        return user?.toUser()
+    }
+    
+    suspend fun getById(id: Long): UserInfo? {
+        try {
+            val user = userService.getById(id)
+            
+            if (user != null) {
+                userDao.insert(user.toEntity())
+                return user
+            }
+        } catch (e: Exception) {
+            Log.e(
+                "UserRepository",
+                "Ошибка при получении профиля",
+                e
+            )
+        }
+        
+        val localUser = userDao.get(id)
+        
+        return localUser?.toUser()
+    }
+    
+    suspend fun updateProfile(user: UserInfo): Boolean {
+        try {
+            userDao.insert(user.toEntity())
+            return userService.updateProfile(user)
+        } catch (e: Exception) {
+            Log.e(
+                "UserRepository",
+                "Ошибка при обновлении профиля",
+                e
+            )
+            return false
+        }
+    }
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/enums/ChannelType.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/enums/ChannelType.kt
@@ -0,0 +1,12 @@
+package com.aiwazian.messenger.enums
+
+enum class ChannelType {
+    PUBLIC,
+    PRIVATE;
+    
+    companion object {
+        fun fromInt(value: Int): ChannelType {
+            return entries.first { it.ordinal == value }
+        }
+    }
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/enums/ChatType.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/enums/ChatType.kt
@@ -0,0 +1,26 @@
+package com.aiwazian.messenger.enums
+
+enum class ChatType {
+    PRIVATE,
+    GROUP,
+    CHANNEL,
+    UNKNOWN;
+    
+    companion object {
+        fun fromOrdinal(ordinal: Int): ChatType {
+            return entries.firstOrNull { it.ordinal == ordinal } ?: UNKNOWN
+        }
+        
+        fun fromId(id: Long): ChatType {
+            val idString = id.toString()
+            val firstDigit = idString[0].digitToInt()
+            
+            return when (firstDigit) {
+                1-> PRIVATE
+                2-> CHANNEL
+                3-> GROUP
+                else -> UNKNOWN
+            }
+        }
+    }
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/enums/DownloadStatus.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/enums/DownloadStatus.kt
@@ -0,0 +1,7 @@
+package com.aiwazian.messenger.enums
+
+enum class DownloadStatus {
+    PENDING,
+    DOWNLOADING,
+    COMPLETED
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/enums/FileType.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/enums/FileType.kt
@@ -0,0 +1,48 @@
+package com.aiwazian.messenger.enums
+
+enum class FileType {
+    IMAGE,
+    VIDEO,
+    MUSIC,
+    ZIP,
+    TEXT,
+    HTML,
+    CSS,
+    JAVASCRIPT,
+    PHP,
+    APK,
+    GIF,
+    JSON,
+    OTHER;
+    
+    companion object {
+        private val extensionMap: Map<String, FileType> = mapOf(
+            "jpg" to IMAGE,
+            "jpeg" to IMAGE,
+            "png" to IMAGE,
+            "gif" to IMAGE,
+            "bmp" to IMAGE,
+            "mp4" to VIDEO,
+            "avi" to VIDEO,
+            "mkv" to VIDEO,
+            "mov" to VIDEO,
+            "mp3" to MUSIC,
+            "wav" to MUSIC,
+            "aac" to MUSIC,
+            "flac" to MUSIC,
+            "zip" to ZIP,
+            "txt" to TEXT,
+            "html" to HTML,
+            "css" to CSS,
+            "js" to JAVASCRIPT,
+            "php" to PHP,
+            "gif" to GIF,
+            "apk" to APK,
+            "json" to JSON
+        )
+        
+        fun fromExtension(extension: String): FileType {
+            return extensionMap[extension.lowercase()] ?: OTHER
+        }
+    }
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/enums/PrimaryColorOption.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/enums/PrimaryColorOption.kt
@@ -0,0 +1,20 @@
+package com.aiwazian.messenger.enums
+
+import androidx.compose.ui.graphics.Color
+
+enum class PrimaryColorOption(val color: Color) {
+    Blue(Color(0xFF2196F3)),
+    Green(Color(0xFF4CAF50)),
+    DarkGreen(Color(0xFF009688)),
+    Purple(Color(0xFF9C27B0)),
+    Orange(Color(0xFFFF5722)),
+    Orange1(Color(0xFFE91E63)),
+    Pink(Color(0xFFFF00FF)),
+    Pink1(Color(0xFF673AB7));
+
+    companion object {
+        fun fromString(value: String): PrimaryColorOption {
+            return entries.firstOrNull { it.name.equals(value, ignoreCase = true) } ?: Blue
+        }
+    }
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/enums/PrivacyLevel.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/enums/PrivacyLevel.kt
@@ -0,0 +1,12 @@
+package com.aiwazian.messenger.enums
+
+enum class PrivacyLevel(val id: Int) {
+    Everybody(0),
+    Nobody(1);
+    
+    companion object {
+        fun fromId(id: Int): PrivacyLevel {
+            return entries.first { it.id == id }
+        }
+    }
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/enums/ThemeOption.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/enums/ThemeOption.kt
@@ -0,0 +1,18 @@
+package com.aiwazian.messenger.enums
+
+enum class ThemeOption {
+    LIGHT,
+    DARK,
+    SYSTEM;
+    
+    companion object {
+        fun fromString(value: String): ThemeOption {
+            return entries.firstOrNull {
+                it.name.equals(
+                    value,
+                    ignoreCase = true
+                )
+            } ?: SYSTEM
+        }
+    }
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/enums/WebSocketAction.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/enums/WebSocketAction.kt
@@ -0,0 +1,29 @@
+package com.aiwazian.messenger.enums
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+enum class WebSocketAction {
+    @SerialName("NEW_MESSAGE")
+    NEW_MESSAGE,
+    
+    @SerialName("DELETE_MESSAGE")
+    DELETE_MESSAGE,
+    
+    @SerialName("DELETE_CHAT")
+    DELETE_CHAT,
+    
+    @SerialName("READ_MESSAGE")
+    READ_MESSAGE,
+    
+    @SerialName("NEW_CHAT")
+    NEW_CHAT,
+
+    @SerialName("HISTORY_CLEAR")
+    HISTORY_CLEAR,
+
+    KANBAN_UPDATE,
+    
+    UNKNOWN
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/interfaces/ApiService.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/interfaces/ApiService.kt
@@ -0,0 +1,311 @@
+package com.aiwazian.messenger.interfaces
+
+import androidx.annotation.Keep
+import com.aiwazian.messenger.data.ApiResponse
+import com.aiwazian.messenger.data.AuthRequest
+import com.aiwazian.messenger.data.FileDownloadUrlResponse
+import com.aiwazian.messenger.data.AuthResponse
+import com.aiwazian.messenger.data.ChangeCloudPasswordRequest
+import com.aiwazian.messenger.data.ChannelInfo
+import com.aiwazian.messenger.data.CreateChannelRequest
+import com.aiwazian.messenger.data.CreateGroupRequest
+import com.aiwazian.messenger.data.CreatedEntityResponse
+import com.aiwazian.messenger.data.ChatInfo
+import com.aiwazian.messenger.data.FolderInfo
+import com.aiwazian.messenger.data.FileUploadConfirmRequest
+import com.aiwazian.messenger.data.FileUploadInitRequest
+import com.aiwazian.messenger.data.FileUploadInitResponse
+import com.aiwazian.messenger.data.GroupInfo
+import com.aiwazian.messenger.data.LoginAvailability
+import com.aiwazian.messenger.data.KanbanBoard
+import com.aiwazian.messenger.data.KanbanMoveTaskRequest
+import com.aiwazian.messenger.data.KanbanTaskRequest
+import com.aiwazian.messenger.data.KanbanTitleRequest
+import com.aiwazian.messenger.data.Message
+import com.aiwazian.messenger.data.NotificationTokenRequest
+import com.aiwazian.messenger.data.PrivacySettings
+import com.aiwazian.messenger.data.RegisterRequest
+import com.aiwazian.messenger.data.SearchInfo
+import com.aiwazian.messenger.data.SessionInfo
+import com.aiwazian.messenger.data.SendMessageRequest
+import com.aiwazian.messenger.data.UserInfo
+import com.aiwazian.messenger.data.UsernameAvailability
+import com.aiwazian.messenger.data.UpdateProfileRequest
+import com.aiwazian.messenger.data.UpdateUsernameRequest
+import com.aiwazian.messenger.utils.Route
+import okhttp3.MultipartBody
+import okhttp3.ResponseBody
+import retrofit2.Call
+import retrofit2.Response
+import retrofit2.http.Body
+import retrofit2.http.DELETE
+import retrofit2.http.GET
+import retrofit2.http.Multipart
+import retrofit2.http.PATCH
+import retrofit2.http.POST
+import retrofit2.http.PUT
+import retrofit2.http.Part
+import retrofit2.http.Path
+import retrofit2.http.Query
+import retrofit2.http.Streaming
+import retrofit2.http.Url
+
+@Keep
+interface ApiService {
+    @GET("api/kanban")
+    suspend fun getKanbanBoards(): Response<List<KanbanBoard>>
+
+    @POST("api/kanban")
+    suspend fun createKanbanBoard(@Body request: KanbanTitleRequest): Response<KanbanBoard>
+
+    @PATCH("api/kanban/{boardId}")
+    suspend fun renameKanbanBoard(
+        @Path("boardId") boardId: Int,
+        @Body request: KanbanTitleRequest
+    ): Response<KanbanBoard>
+
+    @DELETE("api/kanban/{boardId}")
+    suspend fun deleteKanbanBoard(@Path("boardId") boardId: Int): Response<Unit>
+
+    @POST("api/kanban/{boardId}/columns")
+    suspend fun createKanbanColumn(@Path("boardId") boardId: Int, @Body request: KanbanTitleRequest): Response<KanbanBoard>
+
+    @POST("api/kanban/columns/{columnId}/tasks")
+    suspend fun createKanbanTask(@Path("columnId") columnId: Int, @Body request: KanbanTaskRequest): Response<KanbanBoard>
+
+    @PATCH("api/kanban/tasks/{taskId}")
+    suspend fun moveKanbanTask(@Path("taskId") taskId: Int, @Body request: KanbanMoveTaskRequest): Response<KanbanBoard>
+
+    @DELETE("api/kanban/tasks/{taskId}")
+    suspend fun deleteKanbanTask(@Path("taskId") taskId: Int): Response<KanbanBoard>
+    
+    @GET(Route.FIND_USER_BY_LOGIN)
+    suspend fun findUserByLogin(@Path("login") login: String): Response<LoginAvailability>
+    
+    @POST(Route.LOGIN)
+    suspend fun login(@Body request: AuthRequest): Response<AuthResponse>
+    
+    @POST(Route.REGISTER)
+    suspend fun register(@Body request: RegisterRequest): Response<Unit>
+    
+    @POST(Route.LOGOUT)
+    suspend fun logout(): Response<ApiResponse>
+    
+    @GET(Route.ME)
+    suspend fun getMe(): Response<UserInfo>
+    
+    @GET(Route.UNARCHIVED_CHATS)
+    suspend fun getUnarchivedChats(): Response<List<ChatInfo>>
+    
+    @GET(Route.ARCHIVED_CHATS)
+    suspend fun getArchivedChats(): Response<List<ChatInfo>>
+    
+    @GET(Route.GET_SESSIONS)
+    suspend fun getSessions(): Response<List<SessionInfo>>
+    
+    @POST(Route.UPDATE_FCM_TOKEN)
+    suspend fun updateFcmToken(@Body newToken: NotificationTokenRequest): Response<ApiResponse>
+    
+    @DELETE(Route.TERMINATE_ALL_SESSIONS)
+    suspend fun terminateAllSessions(): Response<ApiResponse>
+    
+    @DELETE(Route.TERMINATE_SESSION)
+    suspend fun terminateSession(@Path("id") id: Int): Response<ApiResponse>
+    
+    @GET(Route.GET_DEVICE_COUNT)
+    suspend fun getDeviceCount(): Response<Int>
+    
+    @DELETE(Route.DELETE_CHAT)
+    suspend fun deleteChat(
+        @Path("id") chatId: Long,
+        @Query("deleteForReceiver") deleteForReceiver: Boolean
+    ): Response<Unit>
+    
+    @DELETE(Route.DELETE_CHAT_MESSAGES)
+    suspend fun deleteChatMessages(
+        @Path("id") id: Long,
+        @Query("deleteForReceiver") deleteForReceiver: Boolean
+    ): Response<Unit>
+    
+    @PATCH(Route.CHANGE_CLOUD_PASSWORD)
+    suspend fun changeCloudPassword(@Body body: ChangeCloudPasswordRequest): Response<ApiResponse>
+    
+    @PATCH(Route.CHANGE_BIO_PRIVACY)
+    suspend fun changeBioPrivacy(@Path("value") body: Int): Response<ApiResponse>
+    
+    @PATCH(Route.CHANGE_DATE_OF_BIRTH_PRIVACY)
+    suspend fun changeDateOfBirthPrivacy(@Path("value") body: Int): Response<ApiResponse>
+    
+    @GET(Route.CHAT_MESSAGES)
+    suspend fun getMessagesBetweenUsers(@Path("id") chatId: Long): Response<List<Message>>
+    
+    @GET(Route.GET_CHAT_LAST_MESSAGE)
+    suspend fun getChatLastMessage(@Path("chatId") chatId: Long): Response<Message>
+    
+    @GET(Route.GET_CHAT_INFO)
+    suspend fun getChatInfo(@Path("id") id: Long): Response<ChatInfo?>
+    
+    @PATCH("api/users/me")
+    suspend fun updateProfile(@Body profile: UpdateProfileRequest): Response<UserInfo>
+    
+    @GET("api/search")
+    suspend fun searchUser(@Query("q") query: String): Response<List<SearchInfo>>
+    
+    @GET(Route.GE_USER_BY_ID)
+    suspend fun getUserById(@Path("id") id: Long): Response<UserInfo>
+    
+    @POST(Route.ADD_CHAT_TO_ARCHIVE)
+    suspend fun archiveChat(@Path("id") chatId: Long): Response<ApiResponse>
+    
+    @DELETE(Route.DELETE_CHAT_FROM_ARCHIVE)
+    suspend fun unarchiveChat(@Path("id") chatId: Long): Response<ApiResponse>
+    
+    @POST(Route.SEND_MESSAGE)
+    suspend fun sendMessage(
+        @Path("chatId") chatId: Long,
+        @Body requestBody: SendMessageRequest
+    ): Response<Message>
+    
+    @Multipart
+    @POST(Route.SEND_DOCUMENT)
+    suspend fun sendDocument(
+        @Part file: MultipartBody.Part,
+        @Path("chatId") chatId: Long
+    ): Response<Message>
+
+    @POST("api/chats/{chatId}/messages/files/init")
+    suspend fun initFileUpload(
+        @Path("chatId") chatId: Long,
+        @Body request: FileUploadInitRequest
+    ): Response<FileUploadInitResponse>
+
+    @POST("api/chats/{chatId}/messages/files/confirm")
+    suspend fun confirmFileUpload(
+        @Path("chatId") chatId: Long,
+        @Body request: FileUploadConfirmRequest
+    ): Response<Message>
+
+    @GET("api/chats/{chatId}/messages/{messageId}/files/{fileId}/download")
+    suspend fun getFileDownloadUrl(
+        @Path("chatId") chatId: Long,
+        @Path("messageId") messageId: Int,
+        @Path("fileId") fileId: String
+    ): Response<FileDownloadUrlResponse>
+    
+    @DELETE(Route.DELETE_MESSAGE)
+    suspend fun deleteMessage(
+        @Path("chatId") chatId: Long,
+        @Path("messageId") messageId: Int,
+        @Query("forEveryone") forEveryone: Boolean
+    ): Response<Unit>
+    
+    @POST(Route.MAKE_AS_READ_MESSAGE)
+    suspend fun makeAsReadMessage(
+        @Path("chatId") chatId: Long,
+        @Path("messageId") messageId: Int
+    ): Response<Unit>
+    
+    @POST(Route.FOLDER)
+    suspend fun saveFolder(@Body requestBody: FolderInfo): Response<ApiResponse>
+    
+    @DELETE(Route.DELETE_FOLDER)
+    suspend fun deleteFolder(@Path("id") id: Int): Response<ApiResponse>
+    
+    @GET(Route.FOLDERS)
+    suspend fun getFolders(): Response<List<FolderInfo>>
+    
+    @GET(Route.CHATS)
+    suspend fun getAllChats(): Response<List<ChatInfo>>
+    
+    @GET(Route.CHATS)
+    suspend fun getAllChatsWithOtherUser(): Response<List<ChatInfo>>
+    
+    @POST(Route.PIN_CHAT)
+    suspend fun pinChat(
+        @Path("id") chatId: Long
+    ): Response<ApiResponse>
+    
+    @DELETE(Route.UNPIN_CHAT)
+    suspend fun unpinChat(
+        @Path("id") chatId: Long
+    ): Response<ApiResponse>
+    
+    @POST(Route.PIN_CHAT_IN_FOLDER)
+    suspend fun pinChatInFolder(
+        @Path("folderId") folderId: Int,
+        @Path("chatId") chatId: Long
+    ): Response<ApiResponse>
+    
+    @DELETE(Route.UNPIN_CHAT_IN_FOLDER)
+    suspend fun unpinChatInFolder(
+        @Path("folderId") folderId: Int,
+        @Path("chatId") chatId: Long
+    ): Response<ApiResponse>
+    
+    @GET(Route.GET_MY_PRIVACY)
+    suspend fun getMyPrivacy(): Response<PrivacySettings>
+
+    @PATCH("api/users/me/privacy")
+    suspend fun updatePrivacy(@Body settings: PrivacySettings): Response<PrivacySettings>
+    
+    @GET("api/search/check/{username}")
+    suspend fun checkUsername(@Path("username") username: String): Response<UsernameAvailability>
+
+    @PATCH("api/users/me/username")
+    suspend fun saveUsername(@Body request: UpdateUsernameRequest): Response<UserInfo>
+    
+    @POST(Route.CREATE_CHANNEL)
+    suspend fun createChannel(@Body channelInfo: CreateChannelRequest): Response<CreatedEntityResponse>
+    
+    @POST(Route.SAVE_CHANNEL)
+    suspend fun saveChannel(
+        @Path("id") id: Long,
+        @Body channelInfo: ChannelInfo
+    ): Response<ApiResponse>
+    
+    @DELETE(Route.DELETE_CHANNEL)
+    suspend fun deleteChannel(@Path("id") id: Long): Response<ApiResponse>
+    
+    @GET(Route.GET_CHANNEL)
+    suspend fun getChannel(@Path("id") id: Long): Response<ChannelInfo>
+    
+    @POST(Route.JOIN_CHANNEL)
+    suspend fun joinChannel(@Path("id") id: Long): Response<ApiResponse>
+    
+    @DELETE(Route.LEAVE_CHANNEL)
+    suspend fun leaveChannel(@Path("id") id: Long): Response<ApiResponse>
+    
+    @GET(Route.GET_CHANNEL_SUBSCRIBERS)
+    suspend fun getChannelSubscribers(@Path("id") id: Long): Response<List<UserInfo>>
+    
+    @GET(Route.CHECK_CHANNEL_PUBLIC_LINK)
+    suspend fun checkChannelPublicLink(@Path("link") link: String): Response<ApiResponse>
+    
+    @POST(Route.CREATE_GROUP)
+    suspend fun createGroup(@Body groupInfo: CreateGroupRequest): Response<CreatedEntityResponse>
+    
+    @GET(Route.GET_GROUP)
+    suspend fun getGroup(@Path("id") id: Long): Response<GroupInfo>
+    
+    @DELETE(Route.DELETE_GROUP)
+    suspend fun deleteGroup(@Path("id") id: Long): Response<ApiResponse>
+    
+    @GET(Route.GET_GROUP_MEMBERS)
+    suspend fun getGroupMembers(@Path("id") id: Long): Response<List<UserInfo>>
+    
+    @POST(Route.INVITE_USER_TO_GROUP)
+    suspend fun inviteUserToGroup(
+        @Path("groupId") groupId: Long,
+        @Path("userId") userId: Long
+    ): Response<Unit>
+
+    @DELETE(Route.REMOVE_USER_FROM_GROUP)
+    suspend fun removeUserFromGroup(
+        @Path("groupId") groupId: Long,
+        @Path("userId") userId: Long
+    ): Response<Unit>
+    
+    @Streaming
+    @GET
+    fun downloadFile(@Url fileUrl: String): Call<ResponseBody>
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/interfaces/NotificationService.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/interfaces/NotificationService.kt
@@ -0,0 +1,10 @@
+package com.aiwazian.messenger.interfaces
+
+import com.aiwazian.messenger.data.Notification
+
+interface NotificationService {
+    fun showNotification(
+        notification: Notification,
+        messages: List<String>
+    )
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/interfaces/Profile.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/interfaces/Profile.kt
@@ -0,0 +1,8 @@
+package com.aiwazian.messenger.interfaces
+
+import com.google.errorprone.annotations.Keep
+
+@Keep
+interface Profile {
+    val id: Long
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/interfaces/QrCodeService.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/interfaces/QrCodeService.kt
@@ -0,0 +1,5 @@
+package com.aiwazian.messenger.interfaces
+
+interface QrCodeService {
+    //fun createQrCode()
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/services/AppLockService.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/services/AppLockService.kt
@@ -0,0 +1,64 @@
+package com.aiwazian.messenger.services
+
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class AppLockService @Inject constructor() {
+    
+    private val _isLockApp = MutableStateFlow(false)
+    val isLockApp = _isLockApp.asStateFlow()
+    
+    private val _passcode = MutableStateFlow("")
+    
+    private val _hasPasscode = MutableStateFlow(false)
+    val hasPasscode = _hasPasscode.asStateFlow()
+    
+    private val coroutineScope = CoroutineScope(Dispatchers.IO)
+    
+    private val dataStoreManager = DataStoreManager.getInstance()
+    
+    init {
+        coroutineScope.launch {
+            val passcode = dataStoreManager.getPasscode().first()
+            _passcode.update { passcode }
+            
+            _hasPasscode.update { _passcode.value.isNotBlank() }
+            
+            val isLock = dataStoreManager.getIsLockApp().first()
+            _isLockApp.update { isLock }
+        }
+    }
+    
+    suspend fun lock() {
+        _isLockApp.update { true }
+        dataStoreManager.saveIsLockApp(true)
+    }
+    
+    suspend fun unlock() {
+        _isLockApp.update { false }
+        dataStoreManager.saveIsLockApp(false)
+    }
+    
+    suspend fun disablePasscode() {
+        _hasPasscode.update { false }
+        dataStoreManager.savePasscode("")
+    }
+    
+    suspend fun changePasscode(newPasscode: String) {
+        _passcode.update { newPasscode }
+        _hasPasscode.update { true }
+        dataStoreManager.savePasscode(newPasscode)
+    }
+    
+    fun checkPasscode(passcode: String): Boolean {
+        return passcode == _passcode.value
+    }
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/services/AuthService.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/services/AuthService.kt
@@ -0,0 +1,34 @@
+package com.aiwazian.messenger.services
+
+import com.aiwazian.messenger.api.RetrofitInstance
+import com.aiwazian.messenger.data.AuthRequest
+import com.aiwazian.messenger.data.RegisterRequest
+import com.aiwazian.messenger.utils.WebSocketManager
+import javax.inject.Inject
+
+class AuthService @Inject constructor() {
+    
+    suspend fun logout() {
+        RetrofitInstance.api.logout()
+        WebSocketManager.close()
+        TokenManager.setAuthorized(false)
+        TokenManager.removeToken()
+    }
+    
+    suspend fun login(authRequest: AuthRequest): String? {
+        val response = RetrofitInstance.api.login(authRequest)
+        
+        return response.body()?.token
+    }
+    
+    suspend fun register(registerRequest: RegisterRequest): Boolean {
+        val response = RetrofitInstance.api.register(registerRequest)
+        
+        return response.isSuccessful
+    }
+    
+    suspend fun findUserByLogin(login: String): Boolean {
+        val response = RetrofitInstance.api.findUserByLogin(login)
+        return response.body()?.available == false
+    }
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/services/ChannelService.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/services/ChannelService.kt
@@ -0,0 +1,60 @@
+package com.aiwazian.messenger.services
+
+import com.aiwazian.messenger.api.RetrofitInstance
+import com.aiwazian.messenger.data.ChannelInfo
+import com.aiwazian.messenger.data.CreateChannelRequest
+import com.aiwazian.messenger.enums.ChannelType
+import com.aiwazian.messenger.data.UserInfo
+import com.aiwazian.messenger.types.EntityId
+import javax.inject.Inject
+
+class ChannelService @Inject constructor() {
+    
+    suspend fun create(channel: ChannelInfo): Long? {
+        val response = RetrofitInstance.api.createChannel(
+            CreateChannelRequest(
+                name = channel.name,
+                bio = channel.bio.ifBlank { null },
+                channelType = if (channel.channelType == ChannelType.PUBLIC.ordinal) "PUBLIC" else "PRIVATE",
+                username = channel.publicLink?.trim()?.trimStart('@')?.ifBlank { null }
+            )
+        )
+        return response.body()?.id
+    }
+    
+    suspend fun save(channel: ChannelInfo): Long? {
+        val response = RetrofitInstance.api.saveChannel(channel.id, channel)
+        return response.body()?.message?.toLongOrNull()
+    }
+    
+    suspend fun delete(id: Long): Boolean {
+        val response = RetrofitInstance.api.deleteChannel(id)
+        return response.isSuccessful
+    }
+    
+    suspend fun get(id: Long): ChannelInfo? {
+        val response = RetrofitInstance.api.getChannel(id)
+        return response.body()
+    }
+    
+    suspend fun join(id: Long): Boolean {
+        val response = RetrofitInstance.api.joinChannel(id)
+        return response.isSuccessful
+    }
+    
+    suspend fun leave(id: Long): Boolean {
+        val response = RetrofitInstance.api.leaveChannel(id)
+        return response.isSuccessful
+    }
+    
+    suspend fun isBusyPublicLick(link:String): Boolean {
+        val response = RetrofitInstance.api.checkChannelPublicLink(link)
+        return !response.isSuccessful
+    }
+    
+    suspend fun getSubscribers(id:Long): List<UserInfo>? {
+        val response = RetrofitInstance.api.getChannelSubscribers(id)
+        return response.body()
+    }
+    
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/services/ChatService.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/services/ChatService.kt
@@ -0,0 +1,135 @@
+package com.aiwazian.messenger.services
+
+import com.aiwazian.messenger.api.RetrofitInstance
+import com.aiwazian.messenger.data.ChatInfo
+import com.aiwazian.messenger.data.Message
+import com.aiwazian.messenger.data.SendMessageRequest
+import okhttp3.MultipartBody
+import javax.inject.Inject
+
+class ChatService @Inject constructor() {
+    
+    suspend fun sendMessage(chatId: Long, message: Message): Message? {
+        val response = RetrofitInstance.api.sendMessage(
+            chatId,
+            SendMessageRequest(message.text.orEmpty(), message.kanbanBoardId, message.kanbanTaskId)
+        )
+        return if (response.isSuccessful) response.body() else null
+    }
+    
+    suspend fun sendDocument(fileUri: MultipartBody.Part, chatId: Long): Message? {
+        val response = RetrofitInstance.api.sendDocument(fileUri, chatId)
+        return if (response.isSuccessful) response.body() else null
+    }
+    
+    suspend fun getChatInfo(chatId: Long): ChatInfo? {
+        val response = RetrofitInstance.api.getChatInfo(chatId)
+        return response.body()
+    }
+    
+    suspend fun getAllChatsWithOtherUser(): List<ChatInfo>? {
+        val response = RetrofitInstance.api.getAllChatsWithOtherUser()
+        return response.body()
+    }
+    
+    suspend fun makeAsReadMessage(
+        chatId: Long,
+        messageId: Int
+    ): Boolean {
+        val response = RetrofitInstance.api.makeAsReadMessage(
+            chatId,
+            messageId
+        )
+        
+        return response.isSuccessful
+    }
+    
+    suspend fun getChatLastMessage(chatId: Long): Message? {
+        return getChatMessages(chatId)?.lastOrNull()
+    }
+    
+    suspend fun getChatMessages(chatId: Long): List<Message>? {
+        val response = RetrofitInstance.api.getMessagesBetweenUsers(chatId)
+        return response.body()
+    }
+    
+    suspend fun archiveChat(chatId: Long): Boolean {
+        val response = RetrofitInstance.api.archiveChat(chatId)
+        return response.isSuccessful
+    }
+    
+    suspend fun unarchiveChat(chatId: Long): Boolean {
+        val response = RetrofitInstance.api.unarchiveChat(chatId)
+        return response.isSuccessful
+    }
+    
+    suspend fun pin(
+        chatId: Long,
+        folderId: Int
+    ): Boolean {
+        val response = if (folderId == 0) {
+            RetrofitInstance.api.pinChat(chatId)
+        } else {
+            RetrofitInstance.api.pinChatInFolder(
+                folderId,
+                chatId
+            )
+        }
+        
+        return response.isSuccessful
+    }
+    
+    suspend fun unpin(
+        chatId: Long,
+        folderId: Int
+    ): Boolean {
+        val response = if (folderId == 0) {
+            RetrofitInstance.api.unpinChat(chatId)
+        } else {
+            RetrofitInstance.api.unpinChatInFolder(
+                folderId,
+                chatId
+            )
+        }
+        
+        return response.isSuccessful
+    }
+    
+    suspend fun deleteMessage(
+        chatId: Long,
+        messageId: Int,
+        deleteForAll: Boolean
+    ): Boolean {
+        val response = RetrofitInstance.api.deleteMessage(
+            chatId,
+            messageId,
+            deleteForAll
+        )
+        
+        return response.isSuccessful
+    }
+    
+    suspend fun deleteChat(
+        chatId: Long,
+        deleteForReceiver: Boolean
+    ): Boolean {
+        val response = RetrofitInstance.api.deleteChat(
+            chatId,
+            deleteForReceiver
+        )
+        
+        return response.isSuccessful
+    }
+    
+    suspend fun deleteChatMessages(
+        chatId: Long,
+        deleteForReceiver: Boolean
+    ): Boolean {
+        val response = RetrofitInstance.api.deleteChatMessages(
+            chatId,
+            deleteForReceiver
+        )
+        
+        return response.isSuccessful
+    }
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/services/ClipboardHelper.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/services/ClipboardHelper.kt
@@ -0,0 +1,16 @@
+package com.aiwazian.messenger.services
+
+import android.content.ClipData
+import android.content.ClipboardManager
+import android.content.Context
+
+class ClipboardHelper(private val context: Context) {
+    fun copy(text: String) {
+        val clipboardManager =
+            context.getSystemService(Context.CLIPBOARD_SERVICE) as ClipboardManager
+
+        val clipData = ClipData.newPlainText("label", text)
+
+        clipboardManager.setPrimaryClip(clipData)
+    }
+}
--- a/messenger-client/app/src/main/java/com/aiwazian/messenger/services/DataStoreManager.kt
+++ b/messenger-client/app/src/main/java/com/aiwazian/messenger/services/DataStoreManager.kt
@@ -0,0 +1,126 @@
+package com.aiwazian.messenger.services
+
+import android.annotation.SuppressLint
+import android.content.Context
+import androidx.datastore.preferences.core.Preferences
+import androidx.datastore.preferences.core.booleanPreferencesKey
+import androidx.datastore.preferences.core.edit
+import androidx.datastore.preferences.core.stringPreferencesKey
+import androidx.datastore.preferences.preferencesDataStore
+import com.aiwazian.messenger.enums.PrimaryColorOption
+import com.aiwazian.messenger.enums.ThemeOption
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.map
+
+private const val USER_PREFERENCES_NAME = "data_store"
+
+private val Context.dataStore by preferencesDataStore(USER_PREFERENCES_NAME)
+
+private object Keys {
+    val THEME = stringPreferencesKey("app_theme")
+    val TOKEN = stringPreferencesKey("token")
+    val PRIMARY_COLOR = stringPreferencesKey("primary_color")
+    val PASSCODE = stringPreferencesKey("passcode")
+    val IS_LOCK_APP = booleanPreferencesKey("is_lock_app")
+    val DYNAMIC_COLOR = booleanPreferencesKey("dynamic_color")
+}
+
+class DataStoreManager private constructor(private val context: Context) {
+    companion object {
+        @SuppressLint("StaticFieldLeak")
+        @Volatile
+        private var INSTANCE: DataStoreManager? = null
+        
+        fun initialize(context: Context) {
+            if (INSTANCE == null) {
+                synchronized(this) {
+                    if (INSTANCE == null) {
+                        INSTANCE = DataStoreManager(context.applicationContext)
+                    }
+                }
+            }
+        }
+        
+        fun getInstance(): DataStoreManager {
+            return INSTANCE ?: throw IllegalStateException("DataStoreManager is not initialized")
+        }
+    }
+    
+    private suspend fun <T> setValue(
+        key: Preferences.Key<T>,
+        value: T
+    ) {
+        context.dataStore.edit { settings ->
+            settings[key] = value
+        }
+    }
+    
+    private fun <T> getValue(
+        key: Preferences.Key<T>,
+        defaultValue: T
+    ): Flow<T> {
+        return context.dataStore.data.map { pref ->
+            pref[key] ?: defaultValue
+        }
+    }
+    
+    suspend fun saveToken(token: String) = setValue(
+        Keys.TOKEN,
+        token
+    )
+    
+    suspend fun savePasscode(passcode: String) = setValue(
+        Keys.PASSCODE,
+        passcode
+    )
+    
+    suspend fun saveIsLockApp(isLock: Boolean) = setValue(
+        Keys.IS_LOCK_APP,
+        isLock
+    )
+    
+    suspend fun savePrimaryColor(colorName: String) = setValue(
+        Keys.PRIMARY_COLOR,
+        colorName
+    )
+    
+    suspend fun saveTheme(theme: ThemeOption) = setValue(
+        Keys.THEME,
+        theme.toString()
+    )
+    
+    suspend fun saveDynamicColor(dynamicColor: Boolean) = setValue(
+        Keys.DYNAMIC_COLOR,
+        dynamicColor
+    )
+    
+    fun getToken() = getValue(
+        Keys.TOKEN,
+        ""
+    )
+    
+    fun getPasscode() = getValue(
+        Keys.PASSCODE,
+        ""
+    )
+    
+    fun getIsLockApp() = getValue(
+        Keys.IS_LOCK_APP,
+        false
+    )
+    
+    fun getPrimaryColor() = getValue(
+        Keys.PRIMARY_COLOR,
+        PrimaryColorOption.Blue.name
+    )
+    
+    fun getTheme() = getValue(
+        Keys.THEME,
+        ThemeOption.SYSTEM.name
+    )
+    
+    fun getDynamicColor() = getValue(
+        Keys.DYNAMIC_COLOR,
+        false
+    )
+}
--- a/Show More
+++ b/Show More