106 changed files with 3654 additions and 37 deletions
--- a/.gitignore
+++ b/.gitignore
@ -1,35 +0,0 @@
-# ---> Android
-# Gradle files
-.gradle/
-build/
-
-# Local configuration file (sdk path, etc)
-local.properties
-
-# Log/OS Files
-*.log
-
-# Android Studio generated files and folders
-captures/
-.externalNativeBuild/
-.cxx/
-*.apk
-output.json
-
-# IntelliJ
-*.iml
-.idea/
-misc.xml
-deploymentTargetDropDown.xml
-render.experimental.xml
-
-# Keystore files
-*.jks
-*.keystore
-
-# Google Services (e.g. APIs or Firebase)
-google-services.json
-
-# Android Profiling
-*.hprof
-
--- a/README.md
+++ b/README.md
@ -1,2 +0,0 @@
-# Polevoy_PMD
-
--- a/app/.gitignore
+++ b/app/.gitignore
@ -0,0 +1 @@
+/build
--- a/app/build.gradle
+++ b/app/build.gradle
@ -0,0 +1,95 @@
+plugins {
+    id 'com.android.application'
+    id 'org.jetbrains.kotlin.android'
+    id 'kotlin-kapt'
+    id 'org.jetbrains.kotlin.plugin.serialization'
+}
+
+apply plugin: 'com.android.application'
+apply plugin: 'com.google.dagger.hilt.android'
+
+android {
+    namespace 'com.example.dtf'
+    compileSdk 34
+
+    defaultConfig {
+        applicationId "com.example.dtf"
+        minSdk 23
+        targetSdk 34
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        vectorDrawables {
+            useSupportLibrary true
+        }
+
+        kapt {
+            arguments {arg("room.schemaLocation", "$projectDir/schemas")}
+        }
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+    buildFeatures {
+        compose true
+    }
+    composeOptions {
+        kotlinCompilerExtensionVersion '1.2.0'
+    }
+    packagingOptions {
+        resources {
+            excludes += '/META-INF/{AL2.0,LGPL2.1}'
+        }
+    }
+}
+
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.8.20"
+    def nav_version = "2.7.0"
+    implementation "androidx.navigation:navigation-compose:$nav_version"
+    implementation 'androidx.core:core-ktx:1.7.0'
+    implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.3.1'
+    implementation 'androidx.activity:activity-compose:1.3.1'
+    implementation "androidx.compose.ui:ui:$compose_ui_version"
+    implementation "androidx.compose.ui:ui-tooling-preview:$compose_ui_version"
+    implementation 'androidx.compose.material:material:1.2.0'
+    testImplementation 'junit:junit:4.13.2'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.5'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
+    androidTestImplementation "androidx.compose.ui:ui-test-junit4:$compose_ui_version"
+    debugImplementation "androidx.compose.ui:ui-tooling:$compose_ui_version"
+    debugImplementation "androidx.compose.ui:ui-test-manifest:$compose_ui_version"
+
+    implementation 'androidx.room:room-runtime:2.5.0' // Библиотека "Room"
+    kapt "androidx.room:room-compiler:2.5.0" // Кодогенератор
+    implementation 'androidx.room:room-ktx:2.5.0'
+
+    implementation "com.google.dagger:hilt-android:2.42"
+    kapt "com.google.dagger:hilt-android-compiler:2.42"
+    implementation("androidx.hilt:hilt-navigation-compose:1.0.0")
+    implementation 'androidx.compose.runtime:runtime-livedata:1.0.0-beta01'
+    implementation "androidx.datastore:datastore-preferences:1.0.0"
+
+    def paging_version = "3.2.1"
+
+    implementation "androidx.paging:paging-runtime-ktx:$paging_version"
+    implementation "androidx.paging:paging-compose:$paging_version"
+    implementation("androidx.room:room-paging:2.5.0")
+
+    implementation("com.squareup.retrofit2:retrofit:2.9.0")
+    implementation("com.squareup.okhttp3:logging-interceptor:4.11.0")
+    implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.5.1")
+    implementation("com.jakewharton.retrofit:retrofit2-kotlinx-serialization-converter:1.0.0")
+}
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
--- a/app/src/androidTest/java/com/example/dtf/ExampleInstrumentedTest.kt
+++ b/app/src/androidTest/java/com/example/dtf/ExampleInstrumentedTest.kt
@ -0,0 +1,24 @@
+package com.example.dtf
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("com.example.shawarma", appContext.packageName)
+    }
+}
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@ -0,0 +1,32 @@
+<?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-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+
+    <application
+        android:name=".DTFApp"
+        android:allowBackup="true"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:fullBackupContent="@xml/backup_rules"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.DTF"
+        android:usesCleartextTraffic="true"
+        tools:targetApi="31">
+        <activity
+            android:name=".MainActivity"
+            android:windowSoftInputMode="adjustResize"
+            android:exported="true"
+            android:theme="@style/Theme.DTF">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
--- a/app/src/main/java/com/example/dtf/AppModule.kt
+++ b/app/src/main/java/com/example/dtf/AppModule.kt
@ -0,0 +1,95 @@
+package com.example.dtf
+
+import android.app.Application
+import androidx.room.*
+import com.example.dtf.api.ServerService
+import com.example.dtf.db.AppDatabase
+import com.example.dtf.repositories.*
+import com.example.dtf.repositories.offline.*
+import com.example.dtf.repositories.online.*
+import com.example.dtf.repositories.online.mediator.RestCategoryRepository
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import javax.inject.Singleton
+
+@Module
+@InstallIn(SingletonComponent::class)
+object AppModule {
+    @Provides
+    @Singleton
+    fun provideDatabase(app: Application) : AppDatabase {
+        return Room.databaseBuilder(
+            app,
+            AppDatabase::class.java,
+            AppDatabase.DB_NAME
+        )
+        .fallbackToDestructiveMigration()
+        .build()
+    }
+
+    @Provides
+    @Singleton
+    fun provideServerService(): ServerService = ServerService.getInstance()
+
+    @Provides
+    @Singleton
+    fun provideICategoryRepository(db: AppDatabase, serverService: ServerService): ICategoryRepository = RestCategoryRepository(db, serverService)
+
+    @Provides
+    @Singleton
+    fun provideICommentRepository(db: AppDatabase, serverService: ServerService): ICommentRepository = RestCommentRepository(db, serverService)
+
+    @Provides
+    @Singleton
+    fun provideILikeRepository(db: AppDatabase, serverService: ServerService): ILikeRepository = RestLikeRepository(db, serverService)
+
+    @Provides
+    @Singleton
+    fun provideIPostRepository(db: AppDatabase, serverService: ServerService): IPostRepository = RestPostRepository(db, serverService)
+
+    @Provides
+    @Singleton
+    fun provideIUserRepository(db: AppDatabase, serverService: ServerService): IUserRepository = RestUserRepository(db, serverService)
+
+    @Provides
+    @Singleton
+    fun provideOfflineCategoryRepository(db: AppDatabase): OfflineCategoryRepository = OfflineCategoryRepository(db.categoryDao())
+
+    @Provides
+    @Singleton
+    fun provideOfflineCommentRepository(db: AppDatabase): OfflineCommentRepository = OfflineCommentRepository(db.commentDao())
+
+    @Provides
+    @Singleton
+    fun provideOfflineLikeRepository(db: AppDatabase): OfflineLikeRepository = OfflineLikeRepository(db.likeDao())
+
+    @Provides
+    @Singleton
+    fun provideOfflinePostRepository(db: AppDatabase): OfflinePostRepository = OfflinePostRepository(db.postDao())
+
+    @Provides
+    @Singleton
+    fun provideOfflineUserRepository(db: AppDatabase): OfflineUserRepository = OfflineUserRepository(db.userDao())
+
+    @Provides
+    @Singleton
+    fun provideRestCategoryRepository(db: AppDatabase, serverService: ServerService): RestCategoryRepository = RestCategoryRepository(db, serverService)
+
+    @Provides
+    @Singleton
+    fun provideRestCommentRepository(db: AppDatabase, serverService: ServerService): RestCommentRepository = RestCommentRepository(db, serverService)
+
+    @Provides
+    @Singleton
+    fun provideRestLikeRepository(db: AppDatabase, serverService: ServerService): RestLikeRepository = RestLikeRepository(db, serverService)
+
+    @Provides
+    @Singleton
+    fun provideRestPostRepository(db: AppDatabase, serverService: ServerService): RestPostRepository = RestPostRepository(db, serverService)
+
+    @Provides
+    @Singleton
+    fun provideRestUserRepository(db: AppDatabase, serverService: ServerService): RestUserRepository = RestUserRepository(db, serverService)
+}
--- a/app/src/main/java/com/example/dtf/DTFApp.kt
+++ b/app/src/main/java/com/example/dtf/DTFApp.kt
@ -0,0 +1,11 @@
+package com.example.dtf
+
+import android.app.Application
+import dagger.hilt.android.HiltAndroidApp
+
+@HiltAndroidApp
+class DTFApp : Application() {
+    override fun onCreate() {
+        super.onCreate()
+    }
+}
--- a/app/src/main/java/com/example/dtf/MainActivity.kt
+++ b/app/src/main/java/com/example/dtf/MainActivity.kt
@ -0,0 +1,131 @@
+package com.example.dtf
+
+import android.annotation.SuppressLint
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.height
+import androidx.compose.material.Icon
+import androidx.compose.material.IconButton
+import androidx.compose.material.Scaffold
+import androidx.compose.material.Text
+import androidx.compose.material.TopAppBar
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.ArrowBack
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.unit.dp
+import androidx.navigation.compose.NavHost
+import androidx.navigation.compose.composable
+import androidx.navigation.compose.currentBackStackEntryAsState
+import androidx.navigation.compose.rememberNavController
+import androidx.navigation.navigation
+import com.example.dtf.screens.EditPostScreen
+import com.example.dtf.screens.LoginScreen
+import com.example.dtf.screens.NewPostScreen
+import com.example.dtf.screens.PostScreen
+import com.example.dtf.screens.PostsScreen
+import com.example.dtf.screens.ProfileScreen
+import com.example.dtf.screens.RegisterScreen
+import com.example.dtf.utils.ScreenPaths
+import com.example.dtf.widgets.BottomNavBar
+import dagger.hilt.android.AndroidEntryPoint
+
+@AndroidEntryPoint
+class MainActivity : ComponentActivity() {
+    @SuppressLint("UnusedMaterial3ScaffoldPaddingParameter",
+        "UnusedMaterialScaffoldPaddingParameter"
+    )
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContent {
+            val navController = rememberNavController()
+            val navBackStackEntry by navController.currentBackStackEntryAsState()
+            val currentRoute = navBackStackEntry?.destination?.route
+
+            val includeBackButton = remember { mutableStateOf(false) }
+
+            Scaffold(
+                modifier = Modifier.fillMaxSize(),
+                backgroundColor = Color.Transparent,
+                topBar = {
+                    if (currentRoute != ScreenPaths.Login.route && currentRoute != ScreenPaths.Register.route && includeBackButton.value) {
+                        TopAppBar(
+                            modifier = Modifier.height(60.dp),
+                            title = {
+
+                            },
+                            navigationIcon = {
+                                IconButton(
+                                    onClick = {
+                                        includeBackButton.value = false
+                                        navController.popBackStack()
+                                    }
+                                ) {
+                                    Icon(
+                                        imageVector = Icons.Default.ArrowBack,
+                                        contentDescription = "Назад",
+                                    )
+                                }
+
+                            },
+                        )
+                    }
+                },
+                bottomBar = {
+                    if (currentRoute != ScreenPaths.Login.route && currentRoute != ScreenPaths.Register.route) {
+                        BottomNavBar(navController)
+                    }
+                }
+            ) {
+                NavHost(navController, ScreenPaths.Login.route) {
+                    composable(ScreenPaths.Login.route) {
+                        LoginScreen(navController)
+                    }
+                    composable(ScreenPaths.Register.route) {
+                        RegisterScreen(navController)
+                    }
+                    navigation(ScreenPaths.Profile.route + "/show", ScreenPaths.Profile.route) {
+                        composable(ScreenPaths.Profile.route + "/show") {
+                            includeBackButton.value = false
+                            ProfileScreen(navController)
+                        }
+                    }
+                    navigation(ScreenPaths.Posts.route + "/all", ScreenPaths.Posts.route) {
+                        composable(ScreenPaths.Posts.route + "/all") {
+                            includeBackButton.value = false
+                            PostsScreen(navController)
+                        }
+                        composable(ScreenPaths.NewPost.route) {
+                            includeBackButton.value = true
+                            NewPostScreen(navController)
+                        }
+                        composable(ScreenPaths.Post.route) { navBackStackEntry ->
+                            includeBackButton.value = true
+                            navBackStackEntry.arguments?.getString("post")?.let { postId ->
+                                PostScreen(
+                                    postId.toInt(),
+                                    navController
+                                )
+                            }
+                        }
+                        composable(ScreenPaths.EditPost.route) { navBackStackEntry ->
+                            includeBackButton.value = true
+                            navBackStackEntry.arguments?.getString("post")?.let { postId ->
+                                EditPostScreen(
+                                    navController,
+                                    postId.toInt()
+                                )
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
--- a/app/src/main/java/com/example/dtf/PreferencesManager.kt
+++ b/app/src/main/java/com/example/dtf/PreferencesManager.kt
@ -0,0 +1,23 @@
+package com.example.dtf
+
+import android.content.Context
+import android.content.SharedPreferences
+
+class PreferencesManager(context: Context) {
+    private val sharedPreferences: SharedPreferences =
+        context.getSharedPreferences("MyPrefs", Context.MODE_PRIVATE)
+
+    fun saveData(key: String, value: String) {
+        val editor = sharedPreferences.edit()
+        editor.putString(key, value)
+        editor.apply()
+    }
+
+    fun getData(key: String, defaultValue: String): String {
+        return sharedPreferences.getString(key, defaultValue) ?: defaultValue
+    }
+
+    fun deleteData(key: String) {
+        sharedPreferences.edit().remove(key).apply()
+    }
+}
--- a/app/src/main/java/com/example/dtf/api/ServerService.kt
+++ b/app/src/main/java/com/example/dtf/api/ServerService.kt
@ -0,0 +1,152 @@
+package com.example.dtf.api
+
+import com.example.dtf.dto.Credentials
+import com.example.dtf.dto.EditPostDto
+import com.example.dtf.dto.MeUser
+import com.example.dtf.dto.NewCommentDto
+import com.example.dtf.dto.NewPostDto
+import com.example.dtf.dto.Token
+import com.example.dtf.dto.remote.CategoriesResponse
+import com.example.dtf.dto.remote.CommentsResponse
+import com.example.dtf.dto.remote.PostsResponse
+import com.example.dtf.models.Category
+import com.example.dtf.models.Comment
+import com.example.dtf.models.Post
+import com.example.dtf.models.User
+import com.jakewharton.retrofit2.converter.kotlinx.serialization.asConverterFactory
+import okhttp3.OkHttpClient
+import okhttp3.logging.HttpLoggingInterceptor
+import retrofit2.http.POST
+import retrofit2.Retrofit
+import retrofit2.http.Body
+import retrofit2.http.GET
+import retrofit2.http.Path
+import retrofit2.http.Query
+import kotlinx.serialization.json.Json
+import okhttp3.MediaType.Companion.toMediaType
+import retrofit2.http.Header
+
+interface ServerService {
+    @POST("auth/login")
+    suspend fun login(
+        @Body credentials: Credentials
+    ): Token
+
+    @POST("auth/register")
+    suspend fun register(
+        @Body credentials: Credentials
+    ): String
+
+    @GET("user/me")
+    suspend fun getCurrentUser(): MeUser
+
+    @GET("category")
+    suspend fun getCategories(
+        @Query("offset") offset: Int?,
+        @Query("limit") limit: Int?
+    ): CategoriesResponse
+
+    @GET("post")
+    suspend fun getPosts(
+        @Query("category") category: Int?,
+        @Query("offset") offset: Int?,
+        @Query("limit") limit: Int?
+    ): PostsResponse
+
+    @GET("post/{postId}")
+    suspend fun getPost(
+        @Path("postId") postId: Int
+    ): Post
+
+    @POST("post")
+    suspend fun createPost(
+        @Body post: NewPostDto
+    )
+
+    @POST("post/{postId}")
+    suspend fun updatePost(
+        @Path("postId") postId: Int,
+        @Body post: EditPostDto
+    )
+
+    @GET("comment")
+    suspend fun getComments(
+        @Query("postId") postId: Int?,
+        @Query("offset") offset: Int?,
+        @Query("limit") limit: Int?
+    ): CommentsResponse
+
+    @GET("comment/{commentId}")
+    suspend fun getComment(
+        @Path("commentId") commentId: Int
+    ): Comment
+
+    @POST("comment")
+    suspend fun createComment(
+        @Body comment: NewCommentDto
+    )
+
+    @POST("post/{postId}/like")
+    suspend fun likePost(
+        @Path("postId") postId: Int
+    )
+
+    @GET("post/{postId}/liked")
+    suspend fun postIsLiked(
+        @Path("postId") postId: Int
+    ): Boolean
+
+    @GET("post/{postId}/likes")
+    suspend fun getPostLikes(
+        @Path("postId") postId: Int
+    ): Int
+
+    @GET("user/{userId}")
+    suspend fun getUser(
+        @Path("userId") userId: Int
+    ): User
+
+    companion object {
+        private const val BASE_URL = "http://192.168.1.9:8000/"
+
+        private var _token: String = ""
+
+        @Volatile
+        private var INSTANCE: ServerService? = null
+
+        fun getInstance(): ServerService {
+            return INSTANCE ?: synchronized(this) {
+                val logger = HttpLoggingInterceptor()
+                logger.level = HttpLoggingInterceptor.Level.BASIC
+                val client = OkHttpClient.Builder()
+                    .addInterceptor(logger)
+                    .addInterceptor {
+                        val originalRequest = it.request()
+                        if (_token.isEmpty()) {
+                            it.proceed(originalRequest)
+                        } else {
+                            it.proceed(
+                                originalRequest
+                                    .newBuilder()
+                                    .header("Authorization", "Bearer $_token")
+                                    .method(originalRequest.method, originalRequest.body)
+                                    .build()
+                            )
+                        }
+                    }
+                    .build()
+                return Retrofit.Builder()
+                    .baseUrl(BASE_URL)
+                    .client(client)
+                    .addConverterFactory(Json.asConverterFactory("application/json".toMediaType()))
+                    .build()
+                    .create(ServerService::class.java)
+                    .also { INSTANCE = it }
+            }
+        }
+
+        fun setToken(token: String) {
+            _token = token
+        }
+    }
+}
--- a/app/src/main/java/com/example/dtf/dao/CategoryDao.kt
+++ b/app/src/main/java/com/example/dtf/dao/CategoryDao.kt
@ -0,0 +1,30 @@
+package com.example.dtf.dao
+
+import androidx.paging.PagingSource
+import androidx.room.*
+import com.example.dtf.models.*
+import kotlinx.coroutines.flow.Flow
+
+@Dao
+interface CategoryDao {
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun insert(category: Category)
+
+    @Update
+    suspend fun update(category: Category)
+
+    @Delete
+    suspend fun delete(category: Category)
+
+    @Query("select * from category")
+    fun getAll() : PagingSource<Int, Category>
+
+    @Query("select * from category")
+    fun getAllCached() : Flow<List<Category>>
+
+    @Query("select * from category where category.id = :id")
+    fun getById(id: Int) : Flow<Category>
+
+    @Query("select * from category limit 1")
+    fun getFirst() : Flow<Category>
+}
--- a/app/src/main/java/com/example/dtf/dao/CommentDao.kt
+++ b/app/src/main/java/com/example/dtf/dao/CommentDao.kt
@ -0,0 +1,27 @@
+package com.example.dtf.dao
+
+import androidx.paging.PagingSource
+import androidx.room.*
+import com.example.dtf.models.*
+import kotlinx.coroutines.flow.Flow
+
+@Dao
+interface CommentDao {
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun insert(comment: Comment)
+
+    @Update
+    suspend fun update(comment: Comment)
+
+    @Delete
+    suspend fun delete(comment: Comment)
+
+    @Query("select * from comment where comment.id = :id")
+    fun getById(id: Int) : Flow<Comment>
+
+    @Query("select * from comment where comment.post_id = :postId ORDER BY id DESC")
+    fun getByPost(postId: Int) : PagingSource<Int, Comment>
+
+    @Query("delete from comment where post_id = :query")
+    fun deleteByQuery(query: String)
+}
--- a/app/src/main/java/com/example/dtf/dao/LikeDao.kt
+++ b/app/src/main/java/com/example/dtf/dao/LikeDao.kt
@ -0,0 +1,20 @@
+package com.example.dtf.dao
+
+import androidx.room.*
+import com.example.dtf.models.Like
+import kotlinx.coroutines.flow.Flow
+
+@Dao
+interface LikeDao {
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun insert(like: Like)
+
+    @Delete
+    suspend fun delete(like: Like)
+
+    @Query("SELECT COUNT(*) FROM likes WHERE post_id = :postId")
+    fun countByPost(postId: Int) : Flow<Int>
+
+    @Query("SELECT COUNT(*) = 1 FROM likes WHERE post_id = :postId AND user_id = :userId")
+    fun isLikedByUser(userId: Int, postId: Int) : Flow<Boolean>
+}
--- a/app/src/main/java/com/example/dtf/dao/PostDao.kt
+++ b/app/src/main/java/com/example/dtf/dao/PostDao.kt
@ -0,0 +1,27 @@
+package com.example.dtf.dao
+
+import androidx.paging.PagingSource
+import androidx.room.*
+import com.example.dtf.models.*
+import kotlinx.coroutines.flow.Flow
+
+@Dao
+interface PostDao {
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun insert(post: Post)
+
+    @Update
+    suspend fun update(post: Post)
+
+    @Delete
+    suspend fun delete(post: Post)
+
+    @Query("select * from post where post.id = :id")
+    fun getById(id: Int) : Flow<Post>
+
+    @Query("select * from post where post.category_id = :categoryId ORDER BY date DESC")
+    fun getByCategory(categoryId: String) : PagingSource<Int, Post>
+
+    @Query("delete from post where category_id = :query")
+    fun deleteByQuery(query: String)
+}
--- a/app/src/main/java/com/example/dtf/dao/UserDao.kt
+++ b/app/src/main/java/com/example/dtf/dao/UserDao.kt
@ -0,0 +1,20 @@
+package com.example.dtf.dao
+
+import androidx.room.*
+import com.example.dtf.models.User
+import kotlinx.coroutines.flow.Flow
+
+@Dao
+interface UserDao {
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun insert(user: User)
+
+    @Update
+    suspend fun update(user: User)
+
+    @Delete
+    suspend fun delete(user: User)
+
+    @Query("select * from user where user.id = :id")
+    fun getById(id: Int): Flow<User>
+}
--- a/app/src/main/java/com/example/dtf/db/AppDatabase.kt
+++ b/app/src/main/java/com/example/dtf/db/AppDatabase.kt
@ -0,0 +1,39 @@
+package com.example.dtf.db
+
+import android.content.Context
+import androidx.room.*
+import com.example.dtf.models.Category
+import com.example.dtf.models.Comment
+import com.example.dtf.models.Post
+import com.example.dtf.models.User
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import androidx.sqlite.db.SupportSQLiteDatabase
+import com.example.dtf.dao.*
+import com.example.dtf.models.Like
+import java.util.Date
+
+@Database(
+    entities = [
+        User::class,
+        Category::class,
+        Post::class,
+        Like::class,
+        Comment::class
+    ],
+    version = 4,
+    exportSchema = false
+)
+@TypeConverters(Converter::class)
+abstract class AppDatabase : RoomDatabase() {
+    abstract fun userDao() : UserDao
+    abstract fun categoryDao() : CategoryDao
+    abstract fun commentDao() : CommentDao
+    abstract fun postDao() : PostDao
+    abstract fun likeDao() : LikeDao
+
+    companion object {
+        public const val DB_NAME: String = "news-db"
+    }
+}
--- a/app/src/main/java/com/example/dtf/db/Converter.kt
+++ b/app/src/main/java/com/example/dtf/db/Converter.kt
@ -0,0 +1,16 @@
+package com.example.dtf.db
+
+import androidx.room.TypeConverter
+import java.util.Date
+
+class Converter {
+    @TypeConverter
+    fun fromTimestamp(value: Long?): Date? {
+        return value?.let { Date(it) }
+    }
+
+    @TypeConverter
+    fun dateToTimestamp(date: Date?): Long? {
+        return date?.time?.toLong()
+    }
+}
--- a/app/src/main/java/com/example/dtf/dto/Credentials.kt
+++ b/app/src/main/java/com/example/dtf/dto/Credentials.kt
@ -0,0 +1,9 @@
+package com.example.dtf.dto
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class Credentials(
+    val username: String = "",
+    val password: String = ""
+)
--- a/app/src/main/java/com/example/dtf/dto/EditPostDto.kt
+++ b/app/src/main/java/com/example/dtf/dto/EditPostDto.kt
@ -0,0 +1,9 @@
+package com.example.dtf.dto
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class EditPostDto(
+    val title: String,
+    val content: String
+)
--- a/app/src/main/java/com/example/dtf/dto/MeUser.kt
+++ b/app/src/main/java/com/example/dtf/dto/MeUser.kt
@ -0,0 +1,10 @@
+package com.example.dtf.dto
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class MeUser(
+    val id: Int,
+    val username: String,
+    val is_moderator: Boolean
+)
--- a/app/src/main/java/com/example/dtf/dto/NewCommentDto.kt
+++ b/app/src/main/java/com/example/dtf/dto/NewCommentDto.kt
@ -0,0 +1,9 @@
+package com.example.dtf.dto
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class NewCommentDto(
+    val post_id: Int,
+    val content: String
+)
--- a/app/src/main/java/com/example/dtf/dto/NewPostDto.kt
+++ b/app/src/main/java/com/example/dtf/dto/NewPostDto.kt
@ -0,0 +1,10 @@
+package com.example.dtf.dto
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class NewPostDto(
+    val title: String,
+    val content: String,
+    val category_id: Int
+)
--- a/app/src/main/java/com/example/dtf/dto/Token.kt
+++ b/app/src/main/java/com/example/dtf/dto/Token.kt
@ -0,0 +1,8 @@
+package com.example.dtf.dto
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class Token(
+    val token: String
+)
--- a/app/src/main/java/com/example/dtf/dto/remote/CategoriesResponse.kt
+++ b/app/src/main/java/com/example/dtf/dto/remote/CategoriesResponse.kt
@ -0,0 +1,10 @@
+package com.example.dtf.dto.remote
+
+import com.example.dtf.models.Category
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class CategoriesResponse(
+    val categories: List<Category>,
+    val nextKey: Int?
+)
--- a/app/src/main/java/com/example/dtf/dto/remote/CommentsResponse.kt
+++ b/app/src/main/java/com/example/dtf/dto/remote/CommentsResponse.kt
@ -0,0 +1,10 @@
+package com.example.dtf.dto.remote
+
+import com.example.dtf.models.Comment
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class CommentsResponse(
+    val comments: List<Comment>,
+    val nextKey: Int?
+)
--- a/app/src/main/java/com/example/dtf/dto/remote/PostsResponse.kt
+++ b/app/src/main/java/com/example/dtf/dto/remote/PostsResponse.kt
@ -0,0 +1,10 @@
+package com.example.dtf.dto.remote
+
+import com.example.dtf.models.Post
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class PostsResponse(
+    val posts: List<Post>,
+    val nextKey: Int?
+)
--- a/app/src/main/java/com/example/dtf/models/Category.kt
+++ b/app/src/main/java/com/example/dtf/models/Category.kt
@ -0,0 +1,28 @@
+package com.example.dtf.models
+
+import androidx.room.*
+import kotlinx.serialization.Serializable
+
+@Entity(tableName = "category")
+@Serializable
+data class Category(
+    @PrimaryKey(autoGenerate = true)
+    @ColumnInfo
+    val id: Int?,
+    @ColumnInfo
+    val name: String
+) {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+
+        if (javaClass != other?.javaClass) return false
+
+        other as Category
+
+        return id == other.id
+    }
+
+    override fun hashCode(): Int {
+        return id ?: -1
+    }
+}
--- a/app/src/main/java/com/example/dtf/models/Comment.kt
+++ b/app/src/main/java/com/example/dtf/models/Comment.kt
@ -0,0 +1,36 @@
+package com.example.dtf.models
+
+import androidx.room.*
+import kotlinx.serialization.Serializable
+
+@Entity(tableName = "comment")
+@Serializable
+data class Comment(
+    @PrimaryKey(autoGenerate = true)
+    @ColumnInfo
+    val id: Int?,
+    @ColumnInfo(name = "user_id")
+    val user_id: Int,
+    @ColumnInfo(name = "post_id")
+    val post_id: Int,
+    @ColumnInfo
+    val content: String,
+    @ColumnInfo
+    val date: String,
+    @ColumnInfo
+    val author: String = ""
+) {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+
+        if (javaClass != other?.javaClass) return false
+
+        other as Comment
+
+        return id == other.id
+    }
+
+    override fun hashCode(): Int {
+        return id ?: -1
+    }
+}
--- a/app/src/main/java/com/example/dtf/models/Like.kt
+++ b/app/src/main/java/com/example/dtf/models/Like.kt
@ -0,0 +1,11 @@
+package com.example.dtf.models
+
+import androidx.room.*
+
+@Entity(tableName = "likes", primaryKeys = ["user_id", "post_id"])
+data class Like (
+    @ColumnInfo(name = "user_id", index = true)
+    val userId: Int,
+    @ColumnInfo(name = "post_id", index = true)
+    val postId: Int
+)
--- a/app/src/main/java/com/example/dtf/models/Post.kt
+++ b/app/src/main/java/com/example/dtf/models/Post.kt
@ -0,0 +1,94 @@
+package com.example.dtf.models
+
+import androidx.room.*
+import kotlinx.serialization.Serializable
+
+//private val posts = listOf(
+//    Post(
+//        1,
+//        "Что не так с half-life 2",
+//        "Да всё не так",
+//        1,
+//        mutableVectorOf(
+//            Comment(1, 2, "Пост бред. Начнём с того, что вот эта твоя манера речи клоунская...", Date(2023, 10, 20)),
+//            Comment(2, 1, "Да какой бред, чел, я всё по факту сказал", Date(2023, 10, 20))
+//        ),
+//        Date(2023, 10, 22)
+//    ),
+//    Post(
+//        2,
+//        "Я действительно ненавижу фильм про титаник",
+//        "Пруфов не будет",
+//        2,
+//        mutableVectorOf(Comment(1, 2, "Очередной бред от автора", Date(2023, 9, 20))),
+//        Date(2023, 9, 22)
+//    ),
+//    Post(
+//        3,
+//        "\"Госпожа Кагуя\" это переоценённый тайтл",
+//        "Я, конечно, не смотрел, но мне так кажется. А всё потому, что там происходит такое, что даже Аристотелю не снилось. А может даже Платону. Об этом можно рассуждать тысячи лет, но я смогу уложиться всего в пару слов. И первое слово - этот тайтл полное днище. Ладно, не слово",
+//        3,
+//        mutableVectorOf(Comment(1, 2, "Автора на увольнение", Date(2023, 9, 20))),
+//        Date(2023, 9, 22)
+//    ),
+//    Post(
+//        4,
+//        "\"Восхождение в тени\" это переоценённый тайтл",
+//        "Я, конечно, не смотрел, но мне так кажется. А всё потому, что там происходит такое, что даже Аристотелю не снилось. А может даже Платону. Об этом можно рассуждать тысячи лет, но я смогу уложиться всего в пару слов. И первое слово - этот тайтл полное днище. Ладно, не слово",
+//        3,
+//        mutableVectorOf(Comment(1, 2, "Автора на увольнение", Date(2023, 9, 20))),
+//        Date(2023, 9, 22)
+//    ),
+//    Post(
+//        5,
+//        "\"Тетрадь смерти\" это переоценённый тайтл",
+//        "Я, конечно, не смотрел, но мне так кажется. А всё потому, что там происходит такое, что даже Аристотелю не снилось. А может даже Платону. Об этом можно рассуждать тысячи лет, но я смогу уложиться всего в пару слов. И первое слово - этот тайтл полное днище. Ладно, не слово",
+//        3,
+//        mutableVectorOf(Comment(1, 2, "Автора на увольнение", Date(2023, 9, 20))),
+//        Date(2023, 9, 22)
+//    ),
+//    Post(
+//        6,
+//        "\"Бакуман\" это переоценённый тайтл",
+//        "Я, конечно, не смотрел, но мне так кажется. А всё потому, что там происходит такое, что даже Аристотелю не снилось. А может даже Платону. Об этом можно рассуждать тысячи лет, но я смогу уложиться всего в пару слов. И первое слово - этот тайтл полное днище. Ладно, не слово",
+//        3,
+//        mutableVectorOf(Comment(1, 2, "Автора на увольнение", Date(2023, 9, 20))),
+//        Date(2023, 9, 22)
+//    )
+//)
+
+@Entity(
+    tableName = "post"
+)
+@Serializable
+data class Post(
+    @PrimaryKey(autoGenerate = true)
+    @ColumnInfo
+    val id: Int?,
+    @ColumnInfo
+    val title: String,
+    @ColumnInfo
+    val content: String,
+    @ColumnInfo
+    val date: String,
+    @ColumnInfo(name = "user_id")
+    val user_id: Int,
+    @ColumnInfo(name = "category_id")
+    val category_id: Int,
+    @ColumnInfo
+    val likes: Int = 0,
+) {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+
+        if (javaClass != other?.javaClass) return false
+
+        other as Post
+
+        return id == other.id
+    }
+
+    override fun hashCode(): Int {
+        return id ?: -1
+    }
+}
--- a/app/src/main/java/com/example/dtf/models/User.kt
+++ b/app/src/main/java/com/example/dtf/models/User.kt
@ -0,0 +1,28 @@
+package com.example.dtf.models
+
+import androidx.room.*
+import kotlinx.serialization.Serializable
+
+@Entity(tableName = "user")
+@Serializable
+data class User(
+    @PrimaryKey(autoGenerate = true)
+    @ColumnInfo
+    val id: Int?,
+    @ColumnInfo
+    val username: String,
+) {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+
+        if (javaClass != other?.javaClass) return false
+
+        other as User
+
+        return id == other.id
+    }
+
+    override fun hashCode(): Int {
+        return id ?: -1
+    }
+}
--- a/app/src/main/java/com/example/dtf/repositories/ICategoryRepository.kt
+++ b/app/src/main/java/com/example/dtf/repositories/ICategoryRepository.kt
@ -0,0 +1,12 @@
+package com.example.dtf.repositories
+
+import androidx.paging.PagingData
+import com.example.dtf.models.Category
+import kotlinx.coroutines.flow.Flow
+
+interface ICategoryRepository {
+    fun getAll(): Flow<PagingData<Category>>
+    fun getAllCached(): Flow<List<Category>>
+
+    fun getFirst(): Flow<Category?>
+}
--- a/app/src/main/java/com/example/dtf/repositories/ICommentRepository.kt
+++ b/app/src/main/java/com/example/dtf/repositories/ICommentRepository.kt
@ -0,0 +1,12 @@
+package com.example.dtf.repositories
+
+import androidx.paging.PagingData
+import com.example.dtf.models.Comment
+import kotlinx.coroutines.flow.Flow
+
+interface ICommentRepository {
+    suspend fun insert(comment: Comment)
+
+    fun getById(id: Int): Flow<Comment>
+    fun getByPost(postId: Int): Flow<PagingData<Comment>>
+}
--- a/app/src/main/java/com/example/dtf/repositories/ILikeRepository.kt
+++ b/app/src/main/java/com/example/dtf/repositories/ILikeRepository.kt
@ -0,0 +1,12 @@
+package com.example.dtf.repositories
+
+import com.example.dtf.models.Like
+import kotlinx.coroutines.flow.Flow
+
+interface ILikeRepository {
+    suspend fun insert(like: Like)
+    suspend fun delete(like: Like)
+
+    fun countByPost(postId: Int): Flow<Int>
+    fun isLikedByUser(userId: Int, postId: Int): Flow<Boolean>
+}
--- a/app/src/main/java/com/example/dtf/repositories/IPostRepository.kt
+++ b/app/src/main/java/com/example/dtf/repositories/IPostRepository.kt
@ -0,0 +1,13 @@
+package com.example.dtf.repositories
+
+import androidx.paging.PagingData
+import com.example.dtf.models.Post
+import kotlinx.coroutines.flow.Flow
+
+interface IPostRepository {
+    suspend fun insert(post: Post)
+    suspend fun update(post: Post)
+
+    fun getById(id: Int): Flow<Post>
+    fun getByCategory(categoryId: Int): Flow<PagingData<Post>>
+}
--- a/app/src/main/java/com/example/dtf/repositories/IUserRepository.kt
+++ b/app/src/main/java/com/example/dtf/repositories/IUserRepository.kt
@ -0,0 +1,8 @@
+package com.example.dtf.repositories
+
+import com.example.dtf.models.User
+import kotlinx.coroutines.flow.Flow
+
+interface IUserRepository {
+    fun getById(id: Int) : Flow<User>
+}
--- a/app/src/main/java/com/example/dtf/repositories/offline/OfflineCategoryRepository.kt
+++ b/app/src/main/java/com/example/dtf/repositories/offline/OfflineCategoryRepository.kt
@ -0,0 +1,30 @@
+package com.example.dtf.repositories.offline
+
+import androidx.paging.Pager
+import androidx.paging.PagingConfig
+import com.example.dtf.dao.CategoryDao
+import com.example.dtf.models.Category
+import com.example.dtf.repositories.ICategoryRepository
+import kotlinx.coroutines.flow.Flow
+import javax.inject.Inject
+
+class OfflineCategoryRepository @Inject constructor(
+    private val categoryDao: CategoryDao
+) : ICategoryRepository {
+
+    override fun getAll() = Pager(
+        PagingConfig(
+            pageSize = 5,
+            enablePlaceholders = false
+        ),
+        pagingSourceFactory = { categoryDao.getAll() }
+    ).flow
+
+    override fun getAllCached(): Flow<List<Category>> {
+        return categoryDao.getAllCached()
+    }
+
+    override fun getFirst(): Flow<Category?> {
+        return categoryDao.getFirst()
+    }
+}
--- a/app/src/main/java/com/example/dtf/repositories/offline/OfflineCommentRepository.kt
+++ b/app/src/main/java/com/example/dtf/repositories/offline/OfflineCommentRepository.kt
@ -0,0 +1,23 @@
+package com.example.dtf.repositories.offline
+
+import androidx.paging.*
+import com.example.dtf.dao.CommentDao
+import com.example.dtf.models.Comment
+import com.example.dtf.repositories.ICommentRepository
+import javax.inject.Inject
+
+class OfflineCommentRepository @Inject constructor(
+    private val commentDao: CommentDao
+) : ICommentRepository {
+    override suspend fun insert(comment: Comment) = commentDao.insert(comment)
+
+    override fun getById(id: Int) = commentDao.getById(id)
+
+    override fun getByPost(postId: Int) = Pager(
+        PagingConfig(
+            pageSize = 5,
+            enablePlaceholders = false
+        ),
+        pagingSourceFactory = { commentDao.getByPost(postId) }
+    ).flow
+}
--- a/app/src/main/java/com/example/dtf/repositories/offline/OfflineLikeRepository.kt
+++ b/app/src/main/java/com/example/dtf/repositories/offline/OfflineLikeRepository.kt
@ -0,0 +1,18 @@
+package com.example.dtf.repositories.offline
+
+import com.example.dtf.dao.LikeDao
+import com.example.dtf.models.Like
+import com.example.dtf.repositories.ILikeRepository
+import javax.inject.Inject
+
+class OfflineLikeRepository @Inject constructor(
+    private val likeDao: LikeDao
+) : ILikeRepository {
+    override suspend fun insert(like: Like) = likeDao.insert(like)
+
+    override suspend fun delete(like: Like) = likeDao.delete(like)
+
+    override fun countByPost(postId: Int) = likeDao.countByPost(postId)
+
+    override fun isLikedByUser(userId: Int, postId: Int) = likeDao.isLikedByUser(userId, postId)
+}
--- a/app/src/main/java/com/example/dtf/repositories/offline/OfflinePostRepository.kt
+++ b/app/src/main/java/com/example/dtf/repositories/offline/OfflinePostRepository.kt
@ -0,0 +1,25 @@
+package com.example.dtf.repositories.offline
+
+import androidx.paging.*
+import com.example.dtf.dao.PostDao
+import com.example.dtf.models.Post
+import com.example.dtf.repositories.IPostRepository
+import javax.inject.Inject
+
+class OfflinePostRepository @Inject constructor(
+    private val postDao: PostDao
+) : IPostRepository {
+    override suspend fun insert(post: Post) = postDao.insert(post)
+
+    override suspend fun update(post: Post) = postDao.update(post)
+
+    override fun getById(id: Int) = postDao.getById(id)
+
+    override fun getByCategory(categoryId: Int) = Pager(
+        PagingConfig(
+            pageSize = 3,
+            enablePlaceholders = false
+        ),
+        pagingSourceFactory = { postDao.getByCategory(categoryId.toString()) }
+    ).flow
+}
--- a/app/src/main/java/com/example/dtf/repositories/offline/OfflineUserRepository.kt
+++ b/app/src/main/java/com/example/dtf/repositories/offline/OfflineUserRepository.kt
@ -0,0 +1,12 @@
+package com.example.dtf.repositories.offline
+
+import com.example.dtf.dao.UserDao
+import com.example.dtf.models.User
+import com.example.dtf.repositories.IUserRepository
+import javax.inject.Inject
+
+class OfflineUserRepository @Inject constructor(
+    private val userDao: UserDao
+) : IUserRepository {
+    override fun getById(id: Int) = userDao.getById(id)
+}
--- a/app/src/main/java/com/example/dtf/repositories/online/RestCategoryRepository.kt
+++ b/app/src/main/java/com/example/dtf/repositories/online/RestCategoryRepository.kt
@ -0,0 +1,37 @@
+package com.example.dtf.repositories.online.mediator
+
+import androidx.paging.ExperimentalPagingApi
+import androidx.paging.Pager
+import androidx.paging.PagingConfig
+import androidx.paging.PagingData
+import com.example.dtf.api.ServerService
+import com.example.dtf.db.AppDatabase
+import com.example.dtf.models.Category
+import com.example.dtf.repositories.ICategoryRepository
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.flow
+import javax.inject.Inject
+
+class RestCategoryRepository @Inject constructor(
+    private val appDatabase: AppDatabase,
+    private val serverService: ServerService
+) : ICategoryRepository {
+
+    @OptIn(ExperimentalPagingApi::class)
+    override fun getAll(): Flow<PagingData<Category>> = Pager(
+        PagingConfig(
+            pageSize = 3,
+            enablePlaceholders = false
+        ),
+        remoteMediator = CategoryMediator(appDatabase, serverService),
+        pagingSourceFactory = { appDatabase.categoryDao().getAll() }
+    ).flow
+
+    override fun getAllCached(): Flow<List<Category>> {
+        return appDatabase.categoryDao().getAllCached()
+    }
+
+    override fun getFirst(): Flow<Category?> {
+        return appDatabase.categoryDao().getFirst()
+    }
+}
--- a/app/src/main/java/com/example/dtf/repositories/online/RestCommentRepository.kt
+++ b/app/src/main/java/com/example/dtf/repositories/online/RestCommentRepository.kt
@ -0,0 +1,41 @@
+package com.example.dtf.repositories.online
+
+import androidx.paging.ExperimentalPagingApi
+import androidx.paging.Pager
+import androidx.paging.PagingConfig
+import androidx.paging.PagingData
+import com.example.dtf.api.ServerService
+import com.example.dtf.db.AppDatabase
+import com.example.dtf.dto.NewCommentDto
+import com.example.dtf.models.Comment
+import com.example.dtf.repositories.ICommentRepository
+import com.example.dtf.repositories.online.mediator.CommentMediator
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.flow
+import javax.inject.Inject
+
+class RestCommentRepository @Inject constructor(
+    private val appDatabase: AppDatabase,
+    private val serverService: ServerService
+) : ICommentRepository {
+    override suspend fun insert(comment: Comment) {
+        serverService.createComment(
+            comment = NewCommentDto(post_id = comment.post_id, content = comment.content)
+        )
+        appDatabase.commentDao().insert(comment)
+    }
+
+    override fun getById(id: Int): Flow<Comment> {
+        return flow { emit(serverService.getComment(id)) }
+    }
+
+    @OptIn(ExperimentalPagingApi::class)
+    override fun getByPost(postId: Int): Flow<PagingData<Comment>> = Pager(
+        PagingConfig(
+            pageSize = 5,
+            enablePlaceholders = false,
+        ),
+        remoteMediator = CommentMediator(appDatabase, serverService, postId.toString()),
+        pagingSourceFactory = { appDatabase.commentDao().getByPost(postId) }
+    ).flow
+}
--- a/app/src/main/java/com/example/dtf/repositories/online/RestLikeRepository.kt
+++ b/app/src/main/java/com/example/dtf/repositories/online/RestLikeRepository.kt
@ -0,0 +1,30 @@
+package com.example.dtf.repositories.online
+
+import com.example.dtf.api.ServerService
+import com.example.dtf.db.AppDatabase
+import com.example.dtf.models.Like
+import com.example.dtf.repositories.ILikeRepository
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.flow
+import javax.inject.Inject
+
+class RestLikeRepository @Inject constructor(
+    private val appDatabase: AppDatabase,
+    private val serverService: ServerService
+) : ILikeRepository {
+    override suspend fun insert(like: Like) {
+        serverService.likePost(like.postId)
+    }
+
+    override suspend fun delete(like: Like) {
+        serverService.likePost(like.postId)
+    }
+
+    override fun countByPost(postId: Int): Flow<Int> {
+        return flow { emit(serverService.getPostLikes(postId)) }
+    }
+
+    override fun isLikedByUser(userId: Int, postId: Int): Flow<Boolean> {
+        return flow { emit(serverService.postIsLiked(postId)) }
+    }
+}
--- a/app/src/main/java/com/example/dtf/repositories/online/RestPostRepository.kt
+++ b/app/src/main/java/com/example/dtf/repositories/online/RestPostRepository.kt
@ -0,0 +1,49 @@
+package com.example.dtf.repositories.online
+
+import androidx.paging.ExperimentalPagingApi
+import androidx.paging.Pager
+import androidx.paging.PagingConfig
+import androidx.paging.PagingData
+import com.example.dtf.api.ServerService
+import com.example.dtf.db.AppDatabase
+import com.example.dtf.dto.EditPostDto
+import com.example.dtf.dto.NewPostDto
+import com.example.dtf.models.Post
+import com.example.dtf.repositories.IPostRepository
+import com.example.dtf.repositories.online.mediator.PostMediator
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.flow
+import javax.inject.Inject
+
+class RestPostRepository @Inject constructor(
+    private val appDatabase: AppDatabase,
+    private val serverService: ServerService
+) : IPostRepository {
+    override suspend fun insert(post: Post) {
+        serverService.createPost(
+            post = NewPostDto(post.title, post.content, post.category_id)
+        )
+    }
+
+    override suspend fun update(post: Post) {
+        serverService.updatePost(
+            postId = post.id!!,
+            post = EditPostDto(post.title, post.content)
+        )
+        appDatabase.postDao().update(post)
+    }
+
+    override fun getById(id: Int): Flow<Post> {
+        return flow { emit(serverService.getPost(id)) }
+    }
+
+    @OptIn(ExperimentalPagingApi::class)
+    override fun getByCategory(categoryId: Int): Flow<PagingData<Post>> = Pager(
+        PagingConfig(
+            pageSize = 4,
+            enablePlaceholders = false
+        ),
+        remoteMediator = PostMediator(appDatabase, serverService, categoryId.toString()),
+        pagingSourceFactory = { appDatabase.postDao().getByCategory(categoryId.toString()) }
+    ).flow
+}
--- a/app/src/main/java/com/example/dtf/repositories/online/RestUserRepository.kt
+++ b/app/src/main/java/com/example/dtf/repositories/online/RestUserRepository.kt
@ -0,0 +1,18 @@
+package com.example.dtf.repositories.online
+
+import com.example.dtf.api.ServerService
+import com.example.dtf.db.AppDatabase
+import com.example.dtf.models.User
+import com.example.dtf.repositories.IUserRepository
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.flow
+import javax.inject.Inject
+
+class RestUserRepository @Inject constructor(
+    private val appDatabase: AppDatabase,
+    private val serverService: ServerService
+) : IUserRepository {
+    override fun getById(id: Int): Flow<User> {
+        return flow { emit(serverService.getUser(id)) }
+    }
+}
--- a/app/src/main/java/com/example/dtf/repositories/online/mediator/CategoryMediator.kt
+++ b/app/src/main/java/com/example/dtf/repositories/online/mediator/CategoryMediator.kt
@ -0,0 +1,63 @@
+package com.example.dtf.repositories.online.mediator
+
+import androidx.paging.ExperimentalPagingApi
+import androidx.paging.LoadType
+import androidx.paging.PagingState
+import androidx.paging.RemoteMediator
+import androidx.room.withTransaction
+import com.example.dtf.api.ServerService
+import com.example.dtf.db.AppDatabase
+import com.example.dtf.models.Category
+import java.io.IOException
+
+@OptIn(ExperimentalPagingApi::class)
+class CategoryMediator (
+    private val database: AppDatabase,
+    private val serverService: ServerService
+) : RemoteMediator<Int, Category>(){
+
+    private val categoryDao = database.categoryDao()
+
+    override suspend fun load(
+        loadType: LoadType,
+        state: PagingState<Int, Category>
+    ): MediatorResult {
+        return try {
+            var loadKey = when (loadType) {
+                LoadType.REFRESH -> null
+                LoadType.PREPEND -> return MediatorResult.Success(endOfPaginationReached = true)
+                LoadType.APPEND -> {
+                    val lastItem = state.lastItemOrNull()
+                        ?: return MediatorResult.Success(endOfPaginationReached = true)
+
+                    lastItem.id
+                }
+            }
+
+            if (loadKey == null) {
+                loadKey = 0
+            }
+            val response = serverService.getCategories(
+                offset = loadKey,
+                limit = state.config.pageSize
+            )
+
+
+            database.withTransaction {
+                if (loadType == LoadType.REFRESH) {
+                    for (category in response.categories) {
+                        categoryDao.delete(category)
+                    }
+                }
+
+                for (category in response.categories) {
+                    categoryDao.insert(category)
+                }
+            }
+
+            MediatorResult.Success(endOfPaginationReached = response.nextKey == null)
+        } catch (e: IOException) {
+            MediatorResult.Error(e)
+        }
+    }
+}
--- a/app/src/main/java/com/example/dtf/repositories/online/mediator/CommentMediator.kt
+++ b/app/src/main/java/com/example/dtf/repositories/online/mediator/CommentMediator.kt
@ -0,0 +1,63 @@
+package com.example.dtf.repositories.online.mediator
+
+import androidx.paging.ExperimentalPagingApi
+import androidx.paging.LoadType
+import androidx.paging.PagingState
+import androidx.paging.RemoteMediator
+import androidx.room.withTransaction
+import com.example.dtf.api.ServerService
+import com.example.dtf.db.AppDatabase
+import com.example.dtf.models.Comment
+import java.io.IOException
+
+@OptIn(ExperimentalPagingApi::class)
+class CommentMediator (
+    private val database: AppDatabase,
+    private val serverService: ServerService,
+    private val query: String
+) : RemoteMediator<Int, Comment>(){
+
+    private val commentDao = database.commentDao()
+
+    override suspend fun load(
+        loadType: LoadType,
+        state: PagingState<Int, Comment>
+    ): MediatorResult {
+        return try {
+            var loadKey = when (loadType) {
+                LoadType.REFRESH -> null
+                LoadType.PREPEND -> return MediatorResult.Success(endOfPaginationReached = true)
+                LoadType.APPEND -> {
+                    val lastItem = state.lastItemOrNull()
+                        ?: return MediatorResult.Success(endOfPaginationReached = true)
+
+                    lastItem.id
+                }
+            }
+
+            if (loadKey == null) {
+                loadKey = 0
+            }
+            val response = serverService.getComments(
+                postId = query.toInt(),
+                offset = loadKey,
+                limit = state.config.pageSize
+            )
+
+
+            database.withTransaction {
+                if (loadType == LoadType.REFRESH) {
+                    commentDao.deleteByQuery(query)
+                }
+
+                for (comment in response.comments) {
+                    commentDao.insert(comment)
+                }
+            }
+
+            MediatorResult.Success(endOfPaginationReached = response.nextKey == null)
+        } catch (e: IOException) {
+            MediatorResult.Error(e)
+        }
+    }
+}
--- a/app/src/main/java/com/example/dtf/repositories/online/mediator/PostMediator.kt
+++ b/app/src/main/java/com/example/dtf/repositories/online/mediator/PostMediator.kt
@ -0,0 +1,63 @@
+package com.example.dtf.repositories.online.mediator
+
+import androidx.paging.ExperimentalPagingApi
+import androidx.paging.LoadType
+import androidx.paging.PagingState
+import androidx.paging.RemoteMediator
+import androidx.room.withTransaction
+import com.example.dtf.api.ServerService
+import com.example.dtf.db.AppDatabase
+import com.example.dtf.models.Post
+import java.io.IOException
+
+@OptIn(ExperimentalPagingApi::class)
+class PostMediator (
+    private val database: AppDatabase,
+    private val serverService: ServerService,
+    private val query: String
+) : RemoteMediator<Int, Post>(){
+
+    private val postDao = database.postDao()
+
+    override suspend fun load(
+        loadType: LoadType,
+        state: PagingState<Int, Post>
+    ): MediatorResult {
+        return try {
+            var loadKey = when (loadType) {
+                LoadType.REFRESH -> null
+                LoadType.PREPEND -> return MediatorResult.Success(endOfPaginationReached = true)
+                LoadType.APPEND -> {
+                    val lastItem = state.lastItemOrNull()
+                        ?: return MediatorResult.Success(endOfPaginationReached = true)
+
+                    lastItem.id
+                }
+            }
+
+            if (loadKey == null) {
+                loadKey = 0
+            }
+            val response = serverService.getPosts(
+                category = query.toInt(),
+                offset = loadKey,
+                limit = state.config.pageSize
+            )
+
+
+            database.withTransaction {
+                if (loadType == LoadType.REFRESH) {
+                    postDao.deleteByQuery(query)
+                }
+
+                for (comment in response.posts) {
+                    postDao.insert(comment)
+                }
+            }
+
+            MediatorResult.Success(endOfPaginationReached = response.nextKey == null)
+        } catch (e: IOException) {
+            MediatorResult.Error(e)
+        }
+    }
+}
--- a/app/src/main/java/com/example/dtf/screens/EditPostScreen.kt
+++ b/app/src/main/java/com/example/dtf/screens/EditPostScreen.kt
@ -0,0 +1,124 @@
+package com.example.dtf.screens
+
+import androidx.compose.foundation.BorderStroke
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material.*
+import androidx.compose.runtime.*
+import androidx.compose.runtime.livedata.observeAsState
+import androidx.compose.ui.*
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.input.TextFieldValue
+import androidx.compose.ui.unit.*
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.navigation.NavHostController
+import com.example.dtf.PreferencesManager
+import com.example.dtf.utils.ScreenPaths
+import com.example.dtf.viewmodels.EditPostViewModel
+import com.example.dtf.widgets.MyTextField
+
+@Composable
+fun EditPostScreen(navController: NavHostController, postId: Int) {
+    val sharedPref = PreferencesManager(LocalContext.current)
+
+    val title = remember { mutableStateOf(TextFieldValue("")) }
+    val content = remember { mutableStateOf(TextFieldValue("")) }
+
+    val viewModel = hiltViewModel<EditPostViewModel>()
+
+    val post = viewModel.post.observeAsState().value
+
+    val success = viewModel.editingPostState.observeAsState().value
+
+    viewModel.retrievePost(postId)
+
+    if (post != null) {
+        title.value = TextFieldValue(post.title)
+        content.value = TextFieldValue(post.content)
+    }
+
+    if (success == true) {
+        navController.navigate(ScreenPaths.Post.route.replace("{post}", postId.toString())) {
+            popUpTo(ScreenPaths.Post.route.replace("{post}", postId.toString())) {
+                inclusive = true
+            }
+        }
+    }
+
+    if (success == false) {
+        AlertDialog(
+            title = {
+                Text(
+                    text = "Ошибка",
+                    fontWeight = FontWeight.Bold,
+                    fontSize = 20.sp
+                )
+            },
+            text = {
+                Text(
+                    text = "Нельзя сохранить новость с пустым заголовком или содержанием",
+                    fontWeight = FontWeight.Normal,
+                    fontSize = 16.sp
+                )
+            },
+            onDismissRequest = {
+                viewModel.calmEditingState()
+            },
+            buttons = {
+                TextButton(
+                    onClick = {
+                        viewModel.calmEditingState()
+                    }
+                ) {
+                    Text("ОК")
+                }
+            }
+        )
+    }
+
+    Column(
+        modifier = Modifier.verticalScroll(rememberScrollState()),
+        verticalArrangement = Arrangement.spacedBy(10.dp),
+        horizontalAlignment = Alignment.CenterHorizontally
+    ) {
+        MyTextField(
+            value = title,
+            "Заголовок",
+            onChanged = {title.value = it},
+            modifier = Modifier.fillMaxWidth().padding(15.dp, 10.dp, 15.dp, 0.dp),
+            backgroundColor = Color(0xFFFEFEFE)
+        )
+        MyTextField(
+            value = content,
+            "Содержимое",
+            onChanged = {content.value = it},
+            modifier = Modifier.fillMaxWidth().heightIn(min = 500.dp).padding(horizontal = 15.dp),
+            backgroundColor = Color(0xFFFEFEFE),
+            false
+        )
+        Button(
+            {
+                viewModel.editPost(sharedPref, postId, title.value.text, content.value.text)
+            },
+            colors = ButtonDefaults.buttonColors(Color(0xFF388DF2)),
+            border = BorderStroke(1.dp, Color(0xFF0085FF)),
+            shape = RoundedCornerShape(15.dp),
+            modifier = Modifier.fillMaxWidth(0.5f)
+        ) {
+            Text(
+                text = "Сохранить",
+                style = TextStyle(
+                    fontSize = 24.sp,
+                    fontWeight = FontWeight(400),
+                    color = Color(0xFFFFFFFF),
+                )
+            )
+        }
+        Spacer(modifier = Modifier.height(70.dp))
+    }
+}
--- a/app/src/main/java/com/example/dtf/screens/LoginScreen.kt
+++ b/app/src/main/java/com/example/dtf/screens/LoginScreen.kt
@ -0,0 +1,145 @@
+package com.example.dtf.screens
+
+import androidx.compose.foundation.BorderStroke
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.*
+import androidx.compose.runtime.*
+import androidx.compose.runtime.livedata.observeAsState
+import androidx.compose.ui.*
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.input.TextFieldValue
+import androidx.compose.ui.unit.*
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.navigation.NavHostController
+import com.example.dtf.PreferencesManager
+import com.example.dtf.utils.ScreenPaths
+import com.example.dtf.viewmodels.LoginViewModel
+import com.example.dtf.widgets.MyTextField
+
+@Composable
+fun LoginScreen(navController: NavHostController) {
+    val sharedPref = PreferencesManager(LocalContext.current)
+
+    val login = remember { mutableStateOf(TextFieldValue(""))}
+    val password = remember { mutableStateOf(TextFieldValue(""))}
+
+    val viewModel = hiltViewModel<LoginViewModel>()
+
+    val success = viewModel.successState.observeAsState().value
+
+    if (success == true) {
+        navController.navigate(ScreenPaths.Posts.route) {
+            popUpTo(ScreenPaths.Posts.route) {
+                inclusive = true
+            }
+        }
+    }
+
+    if (success == false) {
+        AlertDialog(
+            title = {
+                Text(
+                    text = "Ошибка авторизации",
+                    fontWeight = FontWeight.Bold,
+                    fontSize = 20.sp
+                )
+            },
+            text = {
+                Text(
+                    text = "Неверный логин или пароль",
+                    fontWeight = FontWeight.Normal,
+                    fontSize = 16.sp
+                )
+            },
+            onDismissRequest = {
+                viewModel.calmSuccessState()
+            },
+            buttons = {
+                TextButton(
+                    onClick = {
+                        viewModel.calmSuccessState()
+                    }
+                ) {
+                    Text("ОК")
+                }
+
+            }
+        )
+    }
+
+    Row(
+        horizontalArrangement = Arrangement.Center,
+        modifier = Modifier.fillMaxSize()
+    ) {
+        Column(
+            horizontalAlignment = Alignment.CenterHorizontally,
+            modifier = Modifier.fillMaxWidth(0.7f).fillMaxHeight().padding(vertical=100.dp)
+        ) {
+            Text(
+                text = "Авторизация",
+                style = TextStyle(
+                    fontSize = 40.sp,
+                    fontWeight = FontWeight(400),
+                    color = Color(0xFF000000),
+                ),
+                modifier = Modifier.fillMaxHeight(0.3f)
+            )
+            MyTextField(
+                login,
+                "Логин",
+                {login.value = it},
+                modifier = Modifier
+                    .padding(bottom=30.dp)
+                    .fillMaxWidth()
+                    .heightIn(max=55.dp)
+            )
+            MyTextField(
+                password,
+                "Пароль",
+                {password.value = it},
+                modifier = Modifier
+                    .padding(bottom=60.dp)
+                    .fillMaxWidth()
+                    .heightIn(max=55.dp)
+            )
+            Button(
+                {
+                    viewModel.login(sharedPref, login.value.text, password.value.text)
+                },
+                colors = ButtonDefaults.buttonColors(Color(0xFF388DF2)),
+                border = BorderStroke(1.dp, Color(0xFF0085FF)),
+                shape = RoundedCornerShape(15.dp),
+                modifier = Modifier.padding(bottom=20.dp).fillMaxWidth(0.5f)
+            ) {
+                Text(
+                    text = "Войти",
+                    style = TextStyle(
+                        fontSize = 24.sp,
+                        fontWeight = FontWeight(400),
+                        color = Color(0xFFFFFFFF),
+                    )
+                )
+            }
+            Text(
+                text = "Нет аккаунта?",
+                style = TextStyle(
+                    fontSize = 16.sp,
+                    fontWeight = FontWeight(400),
+                    color = Color(0xFFB6B3B3),
+                ),
+                modifier = Modifier.clickable {
+                    navController.navigate(ScreenPaths.Register.route) {
+                        popUpTo(ScreenPaths.Register.route) {
+                            inclusive = true
+                        }
+                    }
+                }
+            )
+        }
+    }
+}
--- a/app/src/main/java/com/example/dtf/screens/NewPostScreen.kt
+++ b/app/src/main/java/com/example/dtf/screens/NewPostScreen.kt
@ -0,0 +1,171 @@
+package com.example.dtf.screens
+
+import androidx.compose.foundation.BorderStroke
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material.*
+import androidx.compose.runtime.*
+import androidx.compose.runtime.livedata.observeAsState
+import androidx.compose.ui.*
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.input.TextFieldValue
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.*
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.navigation.NavHostController
+import androidx.paging.compose.collectAsLazyPagingItems
+import com.example.dtf.PreferencesManager
+import com.example.dtf.models.Category
+import com.example.dtf.utils.ScreenPaths
+import com.example.dtf.viewmodels.NewPostViewModel
+import com.example.dtf.widgets.MyTextField
+
+@Composable
+fun NewPostScreen(navController: NavHostController) {
+    val sharedPref = PreferencesManager(LocalContext.current)
+
+    val selectedCategory = remember { mutableStateOf(Category(null, "")) }
+    val expanded = remember { mutableStateOf(false) }
+
+    val title = remember { mutableStateOf(TextFieldValue()) }
+    val content = remember { mutableStateOf(TextFieldValue()) }
+
+    val viewModel = hiltViewModel<NewPostViewModel>()
+    val success = viewModel.addingPostState.observeAsState().value
+    val categories = viewModel.getCategories().collectAsState(initial = listOf())
+
+    if (success == true) {
+        navController.navigate(ScreenPaths.Posts.route) {
+            popUpTo(ScreenPaths.Posts.route) {
+                inclusive = true
+            }
+        }
+    }
+
+    if (success == false) {
+        AlertDialog(
+            title = {
+                Text(
+                    text = "Ошибка",
+                    fontWeight = FontWeight.Bold,
+                    fontSize = 20.sp
+                )
+            },
+            text = {
+                Text(
+                    text = "Нельзя создать новость с пустым заголовком или содержанием",
+                    fontWeight = FontWeight.Normal,
+                    fontSize = 16.sp
+                )
+            },
+            onDismissRequest = {
+                viewModel.calmAddingState()
+            },
+            buttons = {
+                TextButton(
+                    onClick = {
+                        viewModel.calmAddingState()
+                    }
+                ) {
+                    Text("ОК")
+                }
+            }
+        )
+    }
+
+    Column(
+        modifier = Modifier.verticalScroll(rememberScrollState()),
+        verticalArrangement = Arrangement.spacedBy(10.dp),
+        horizontalAlignment = Alignment.CenterHorizontally
+    ) {
+        Button(
+            {
+                expanded.value = true
+            },
+            colors = ButtonDefaults.buttonColors(Color(0xFFFFFFFF)),
+            border = BorderStroke(1.dp, Color(0xFF0085FF)),
+            shape = RoundedCornerShape(15.dp),
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(15.dp, 10.dp, 15.dp, 0.dp)
+        ) {
+            Text(
+                text = selectedCategory.value.name,
+                style = TextStyle(
+                    fontSize = 24.sp,
+                    fontWeight = FontWeight(400),
+                    color = Color(0xFF000000),
+                )
+            )
+            DropdownMenu(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(horizontal = 15.dp),
+                expanded = expanded.value,
+                onDismissRequest = {expanded.value = false}
+            ) {
+                categories.value.forEach { category ->
+                    DropdownMenuItem(
+                        onClick = {
+                            selectedCategory.value = category
+                            expanded.value = false
+                        },
+                    ) {
+                        Text(
+                            text = category.name,
+                            fontSize = 16.sp,
+                            textAlign = TextAlign.Center
+                        )
+                    }
+                }
+            }
+        }
+        MyTextField(
+            value = title,
+            "Заголовок",
+            onChanged = {title.value = it},
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(horizontal = 15.dp),
+            backgroundColor = Color(0xFFFEFEFE)
+        )
+        MyTextField(
+            value = content,
+            "Содержимое",
+            onChanged = {content.value = it},
+            modifier = Modifier
+                .fillMaxWidth()
+                .heightIn(min = 400.dp)
+                .padding(horizontal = 15.dp),
+            backgroundColor = Color(0xFFFEFEFE),
+            false
+        )
+
+        Button(
+            {
+                if (selectedCategory.value.id != null) {
+                    viewModel.addPost(sharedPref, selectedCategory.value.id!!, title.value.text, content.value.text)
+                }
+            },
+            colors = ButtonDefaults.buttonColors(Color(0xFF388DF2)),
+            border = BorderStroke(1.dp, Color(0xFF0085FF)),
+            shape = RoundedCornerShape(15.dp),
+            modifier = Modifier.fillMaxWidth(0.5f)
+        ) {
+            Text(
+                text = "Опубликовать",
+                style = TextStyle(
+                    fontSize = 24.sp,
+                    fontWeight = FontWeight(400),
+                    color = Color(0xFFFFFFFF),
+                )
+            )
+        }
+        Spacer(modifier = Modifier.height(70.dp))
+    }
+}
--- a/app/src/main/java/com/example/dtf/screens/PostScreen.kt
+++ b/app/src/main/java/com/example/dtf/screens/PostScreen.kt
@ -0,0 +1,202 @@
+package com.example.dtf.screens
+
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.*
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.AddCircle
+import androidx.compose.material.icons.filled.ThumbUp
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.*
+import androidx.compose.runtime.livedata.observeAsState
+import androidx.compose.ui.*
+import androidx.compose.ui.draw.*
+import androidx.compose.ui.graphics.*
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.input.TextFieldValue
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.*
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.navigation.NavHostController
+import androidx.paging.compose.collectAsLazyPagingItems
+import androidx.paging.compose.itemKey
+import com.example.dtf.PreferencesManager
+import com.example.dtf.models.Comment
+import com.example.dtf.utils.ScreenPaths
+import com.example.dtf.viewmodels.PostViewModel
+import com.example.dtf.widgets.MyTextField
+
+@Composable
+fun PostScreen(postId: Int, navController: NavHostController) {
+    val sharedPref = PreferencesManager(LocalContext.current)
+
+    val viewModel = hiltViewModel<PostViewModel>()
+    val post = viewModel.post.observeAsState().value
+    val comments = viewModel.getCommentsListUiState(postId).collectAsLazyPagingItems()
+
+    val likes = remember { mutableIntStateOf(0) }
+    val isLiked = remember { mutableStateOf(false) }
+
+    LaunchedEffect(Unit) {
+        viewModel.getLikes(postId).collect {
+            likes.intValue = it
+        }
+    }
+
+    LaunchedEffect(Unit) {
+        viewModel.isLiked(sharedPref, postId).collect {
+            isLiked.value = it
+        }
+    }
+
+    viewModel.retrievePost(postId)
+
+    val content = remember { mutableStateOf(TextFieldValue("")) }
+
+    LazyColumn(
+        modifier = Modifier
+            .fillMaxWidth()
+            .background(Color.White),
+        verticalArrangement = Arrangement.spacedBy(5.dp),
+        horizontalAlignment = Alignment.Start
+    ) {
+        item {
+            Text(
+                modifier = Modifier.padding(10.dp),
+                text = post?.title ?: "Loading...",
+                fontSize = 26.sp
+            )
+            Text(
+                modifier = Modifier.fillMaxHeight().padding(10.dp, 0.dp, 10.dp, 0.dp),
+                text = post?.content ?: "Loading...",
+                fontSize = 20.sp
+            )
+            Row(
+                modifier = Modifier.fillMaxWidth().padding(10.dp),
+                verticalAlignment = Alignment.Bottom,
+                horizontalArrangement = Arrangement.SpaceBetween
+            ) {
+                if (post != null) {
+                    Text(
+                        text = post.date,
+                        fontSize = 14.sp,
+                        color = Color(0xFFCECCCC)
+                    )
+                }
+
+                if (sharedPref.getData("isModerator", "false").toBooleanStrict()) {
+                    Text(
+                        modifier = Modifier.clickable {
+                            navController.navigate(ScreenPaths.EditPost.route.replace("{post}", postId.toString()))
+                        },
+                        text = "Изменить",
+                        fontSize = 18.sp,
+                        color = Color(0xFFAFAFAF)
+                    )
+                }
+                Row (
+                    modifier = Modifier,
+                    horizontalArrangement = Arrangement.End
+                ) {
+                    Text(
+                        text = likes.intValue.toString(),
+                        fontSize = 16.sp,
+                        color = Color.Green
+                    )
+                    Icon(
+                        modifier = Modifier.padding(start = 8.dp).clickable {
+                            if (isLiked.value) {
+                                viewModel.unlikePost(sharedPref, postId)
+                                likes.intValue--
+                            } else {
+                                viewModel.likePost(sharedPref, postId)
+                                likes.intValue++
+                            }
+                            isLiked.value = !isLiked.value
+                        },
+                        imageVector = Icons.Default.ThumbUp,
+                        contentDescription = null,
+                        tint = if (isLiked.value) { Color(40, 200, 40, 255) } else {Color.Black}
+                    )
+                }
+            }
+            Divider()
+            Text(
+                modifier = Modifier.fillMaxWidth().padding(0.dp, 0.dp, 0.dp, 10.dp),
+                text = "Комментарии",
+                fontSize = 22.sp,
+                textAlign = TextAlign.Center
+            )
+            Row(
+                modifier = Modifier.fillMaxSize().padding(horizontal = 15.dp),
+                verticalAlignment = Alignment.CenterVertically
+            ) {
+                MyTextField(
+                    value = content,
+                    placeholder = "Комментарий",
+                    onChanged = {content.value = it},
+                    modifier = Modifier.fillMaxWidth(0.9f),
+                    backgroundColor = Color.White
+                )
+                IconButton(
+                    modifier = Modifier.fillMaxWidth().scale(1.5f),
+                    onClick = {
+                        viewModel.addComment(sharedPref, postId, content.value.text)
+                        content.value = TextFieldValue("")
+                    },
+                ) {
+                    Icon(
+                        imageVector = Icons.Default.AddCircle,
+                        contentDescription = null
+                    )
+                }
+            }
+        }
+        items(
+            comments.itemCount,
+            key = comments.itemKey()
+        ) {
+            Comment(comments[it]!!)
+        }
+        item {
+            Spacer(modifier = Modifier.height(60.dp))
+        }
+    }
+}
+
+@Composable
+private fun Comment(comment: Comment) {
+    val viewModel = hiltViewModel<PostViewModel>()
+    val user = viewModel.getCommentsAuthor(comment).collectAsState(null).value
+
+    Column(
+        modifier = Modifier
+                   .fillMaxWidth()
+                   .padding(horizontal = 15.dp, vertical = 5.dp)
+                   .border(width = 1.dp, color = Color(0xFFADADAD), shape = RoundedCornerShape(size = 10.dp))
+                   .background(color = Color(0xFFFFFFFF), shape = RoundedCornerShape(size = 10.dp))
+    ) {
+        Row(
+            modifier = Modifier.fillMaxWidth().padding(10.dp),
+            verticalAlignment = Alignment.Top,
+            horizontalArrangement = Arrangement.SpaceBetween
+        ) {
+            Text(
+                text = comment.author.ifEmpty { user?.username ?: "Loading..." },
+                fontSize = 20.sp
+            )
+            Text(
+                text = comment.date,
+                fontSize = 14.sp,
+                color = Color(0xFFCECCCC)
+            )
+        }
+        Text(
+            modifier = Modifier.padding(start = 10.dp, bottom = 5.dp),
+            text = comment.content,
+            fontSize = 16.sp
+        )
+    }
+}
--- a/app/src/main/java/com/example/dtf/screens/PostsScreen.kt
+++ b/app/src/main/java/com/example/dtf/screens/PostsScreen.kt
@ -0,0 +1,211 @@
+package com.example.dtf.screens
+
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.*
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.LazyRow
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.ThumbUp
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.*
+import androidx.compose.ui.*
+import androidx.compose.ui.draw.*
+import androidx.compose.ui.geometry.*
+import androidx.compose.ui.graphics.*
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.*
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.navigation.NavHostController
+import androidx.paging.PagingData
+import androidx.paging.compose.collectAsLazyPagingItems
+import androidx.paging.compose.itemKey
+import com.example.dtf.PreferencesManager
+import com.example.dtf.models.Category
+import com.example.dtf.models.Post
+import com.example.dtf.utils.ScreenPaths
+import com.example.dtf.viewmodels.PostsViewModel
+import kotlinx.coroutines.flow.Flow
+
+@Composable
+fun PostsScreen(navController: NavHostController) {
+    val sharedPref = PreferencesManager(LocalContext.current)
+
+    val currentCategory = remember { mutableStateOf<Category?>(null) }
+
+    val viewModel = hiltViewModel<PostsViewModel>()
+    val posts = remember { mutableStateOf<Flow<PagingData<Post>>?>(null) }
+
+    Column(
+        modifier = Modifier.fillMaxSize(),
+        verticalArrangement = Arrangement.spacedBy(10.dp)
+    ) {
+
+        Categories(viewModel, currentCategory, posts)
+        Row(
+            modifier = Modifier.fillMaxSize()
+        ) {
+            if (currentCategory.value != null && posts.value != null) {
+                PostsByCategory(viewModel, navController, posts)
+            }
+        }
+    }
+}
+
+@Composable
+private fun Categories(viewModel: PostsViewModel, currentCategory: MutableState<Category?>, posts: MutableState<Flow<PagingData<Post>>?>) {
+    val categories = viewModel.getCategoriesListUiState().collectAsLazyPagingItems()
+
+
+    LazyRow(
+        modifier = Modifier
+            .fillMaxWidth()
+            .fillMaxHeight(0.1f)
+            .background(Color.White),
+        horizontalArrangement = Arrangement.spacedBy(25.dp),
+        verticalAlignment = Alignment.CenterVertically
+    ) {
+        item {
+            Spacer(modifier = Modifier.width(5.dp))
+        }
+        items(
+            count = categories.itemCount,
+            key = categories.itemKey()
+        ) {
+            if (currentCategory.value == null) {
+                currentCategory.value = categories[0]
+                posts.value = viewModel.getPostsListUiState(currentCategory.value!!.id!!)
+            }
+            Text(
+                modifier = Modifier
+                    .clickable {
+                        currentCategory.value = categories[it]!!
+                        posts.value = viewModel.getPostsListUiState(categories[it]!!.id!!)
+                    }
+                    .drawBehind {
+                        if (categories[it]!!.name == currentCategory.value?.name) {
+                            val strokeWidthPx = 2.dp.toPx()
+                            val verticalOffset = size.height + 2.sp.toPx()
+                            drawLine(
+                                color = Color(0xFF319CFF),
+                                strokeWidth = strokeWidthPx,
+                                start = Offset(0f, verticalOffset),
+                                end = Offset(size.width, verticalOffset)
+                            )
+                        }
+                    },
+                text = categories[it]!!.name,
+                fontSize = 22.sp
+            )
+        }
+    }
+}
+
+@Composable
+private fun PostsByCategory(viewModel: PostsViewModel, navController: NavHostController, posts: MutableState<Flow<PagingData<Post>>?>) {
+    val postsItems = posts.value!!.collectAsLazyPagingItems()
+
+    LazyColumn(
+        modifier = Modifier.fillMaxSize(),
+        verticalArrangement = Arrangement.spacedBy(10.dp)
+    ) {
+        items(
+            count = postsItems.itemCount,
+            key = postsItems.itemKey()
+        ) {
+            Post(viewModel, navController, postsItems[it]!!)
+        }
+        item {
+            Spacer(modifier = Modifier.height(60.dp))
+        }
+    }
+}
+
+@Composable
+private fun Post(viewModel: PostsViewModel, navController: NavHostController, post: Post) {
+    val sharedPref = PreferencesManager(LocalContext.current)
+
+    val likes = remember { mutableIntStateOf(post.likes) }
+    val isLiked = remember { mutableStateOf(false) }
+
+    LaunchedEffect(Unit) {
+        viewModel.getLikes(post.id!!).collect {
+            likes.intValue = it
+        }
+    }
+
+    LaunchedEffect(Unit) {
+        viewModel.isLiked(sharedPref, post.id!!).collect {
+            isLiked.value = it
+        }
+    }
+
+    Column(
+        modifier = Modifier
+            .fillMaxHeight(0.3f)
+            .heightIn(max = 250.dp)
+            .fillMaxWidth()
+            .background(Color.White)
+            .clickable {
+                navController.navigate(ScreenPaths.Post.route.replace("{post}", post.id.toString()))
+            },
+        verticalArrangement = Arrangement.spacedBy(5.dp),
+        horizontalAlignment = Alignment.Start
+    ) {
+        Text(
+            modifier = Modifier.padding(10.dp),
+            text = post.title,
+            fontSize = 26.sp
+        )
+        Text(
+            modifier = Modifier
+                .fillMaxHeight(0.6f)
+                .padding(10.dp, 0.dp, 10.dp, 0.dp),
+            text = post.content,
+            fontSize = 20.sp,
+            overflow = TextOverflow.Ellipsis
+        )
+        Row(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(10.dp),
+            verticalAlignment = Alignment.Bottom,
+            horizontalArrangement = Arrangement.SpaceBetween
+        ) {
+            Text(
+                text = post.date,
+                fontSize = 14.sp,
+                color = Color(0xFFCECCCC)
+            )
+            Row (
+                modifier = Modifier
+                    .fillMaxWidth(),
+                horizontalArrangement = Arrangement.End
+            ) {
+                Text(
+                    text = likes.intValue.toString(),
+                    fontSize = 16.sp,
+                    color = Color.Green
+                )
+                Icon(
+                    modifier = Modifier
+                        .padding(start = 8.dp)
+                        .clickable {
+                            if (isLiked.value) {
+                                viewModel.unlikePost(sharedPref, post.id!!)
+                                likes.intValue--
+                            } else {
+                                viewModel.likePost(sharedPref, post.id!!)
+                                likes.intValue++
+                            }
+                            isLiked.value = !isLiked.value
+                        },
+                    imageVector = Icons.Default.ThumbUp,
+                    contentDescription = null,
+                    tint = if (isLiked.value) { Color(40, 200, 40, 255) } else {Color.Black}
+                )
+            }
+        }
+    }
+}
--- a/app/src/main/java/com/example/dtf/screens/ProfileScreen.kt
+++ b/app/src/main/java/com/example/dtf/screens/ProfileScreen.kt
@ -0,0 +1,93 @@
+package com.example.dtf.screens
+
+import androidx.compose.foundation.*
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.*
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.livedata.observeAsState
+import androidx.compose.ui.*
+import androidx.compose.ui.graphics.*
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.unit.*
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.navigation.NavHostController
+import com.example.dtf.PreferencesManager
+import com.example.dtf.utils.ScreenPaths
+import com.example.dtf.viewmodels.ProfileViewModel
+
+@Composable
+fun ProfileScreen(navController: NavHostController) {
+    val sharedPref = PreferencesManager(LocalContext.current)
+
+    val viewModel = hiltViewModel<ProfileViewModel>()
+    val user = viewModel.user.observeAsState().value
+
+    viewModel.retrieveUser(sharedPref)
+
+    Column(
+        modifier = Modifier.fillMaxSize()
+    ) {
+        Box(
+            contentAlignment = Alignment.Center,
+            modifier = Modifier
+                       .fillMaxHeight(0.3f)
+                       .fillMaxWidth()
+                       .background(Color(0xFF388DF2))
+        ) {
+            Column(
+                horizontalAlignment = Alignment.CenterHorizontally
+            ) {
+                Card(
+                    modifier = Modifier.size(90.dp),
+                    shape = RoundedCornerShape(45.dp),
+                ) {
+                    Box(
+                        modifier = Modifier.fillMaxSize(),
+                        contentAlignment = Alignment.Center
+                    ) {
+                        Text(
+                            text = if (user != null) { user.username[0].toString() } else {""},
+                            fontSize = 30.sp,
+                        )
+                    }
+                }
+                Spacer(modifier = Modifier.fillMaxHeight(0.1f))
+                Text(
+                    text = user?.username ?: "",
+                    fontSize = 30.sp,
+                    color = Color.White
+                )
+            }
+        }
+        Divider()
+        Row(
+            modifier = Modifier
+                       .fillMaxHeight(0.9f)
+                       .fillMaxWidth()
+                       .background(Color.White),
+        ) {
+            Column(
+                modifier = Modifier.fillMaxSize(),
+                verticalArrangement = Arrangement.Bottom,
+                horizontalAlignment = Alignment.CenterHorizontally
+            ) {
+                Box(
+                    modifier = Modifier.fillMaxHeight(0.2f),
+                    contentAlignment = Alignment.Center,
+                ) {
+
+                    Text(
+                        modifier = Modifier.clickable {
+                            viewModel.logout(sharedPref)
+                            navController.navigate(ScreenPaths.Login.route)
+                        },
+                        text = "Выйти",
+                        fontSize = 20.sp,
+                        color = Color.Red
+                    )
+                }
+            }
+        }
+    }
+}
--- a/app/src/main/java/com/example/dtf/screens/RegisterScreen.kt
+++ b/app/src/main/java/com/example/dtf/screens/RegisterScreen.kt
@ -0,0 +1,159 @@
+package com.example.dtf.screens
+
+import android.graphics.drawable.shapes.Shape
+import androidx.compose.foundation.BorderStroke
+import androidx.compose.foundation.background
+import androidx.compose.foundation.border
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.AlertDialog
+import androidx.compose.material.Button
+import androidx.compose.material.ButtonDefaults
+import androidx.compose.material.Text
+import androidx.compose.material.TextButton
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.livedata.observeAsState
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.ui.*
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.Font
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.input.TextFieldValue
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.navigation.NavController
+import androidx.navigation.NavHostController
+import com.example.dtf.utils.ScreenPaths
+import com.example.dtf.viewmodels.RegisterViewModel
+import com.example.dtf.widgets.MyTextField
+
+@Composable
+fun RegisterScreen(navController: NavHostController) {
+    val login = remember { mutableStateOf(TextFieldValue(""))}
+    val password = remember { mutableStateOf(TextFieldValue(""))}
+    val confirmPassword = remember { mutableStateOf(TextFieldValue(""))}
+
+    val viewModel = hiltViewModel<RegisterViewModel>()
+    val success = viewModel.successState.observeAsState().value
+
+    if (success == true) {
+        navController.navigate(ScreenPaths.Login.route) {
+            popUpTo(ScreenPaths.Login.route) {
+                inclusive = true
+            }
+        }
+    }
+
+    if (success == false) {
+        AlertDialog(
+            title = {
+                Text(
+                    text = "Ошибка регистрации",
+                    fontWeight = FontWeight.Bold,
+                    fontSize = 20.sp
+                )
+            },
+            text = {
+                Text(
+                    text = "Проверьте корректность введенных данных",
+                    fontWeight = FontWeight.Normal,
+                    fontSize = 16.sp
+                )
+            },
+            onDismissRequest = {
+                viewModel.calmSuccessState()
+            },
+            buttons = {
+                TextButton(
+                    onClick = {
+                        viewModel.calmSuccessState()
+                    }
+                ) {
+                    Text("ОК")
+                }
+            }
+        )
+    }
+
+    Row(
+        horizontalArrangement = Arrangement.Center,
+        modifier = Modifier.fillMaxSize()
+    ) {
+        Column(
+            horizontalAlignment = Alignment.CenterHorizontally,
+            modifier = Modifier.fillMaxWidth(0.7f).fillMaxHeight().padding(vertical=100.dp)
+        ) {
+            Text(
+                text = "Регистрация",
+                style = TextStyle(
+                    fontSize = 40.sp,
+                    fontWeight = FontWeight(400),
+                    color = Color(0xFF000000),
+                ),
+                modifier = Modifier.fillMaxHeight(0.2f)
+            )
+            MyTextField(
+                login,
+                "Логин",
+                {login.value = it},
+                modifier = Modifier
+                    .padding(bottom=30.dp)
+                    .fillMaxWidth()
+                    .heightIn(max=55.dp)
+            )
+            MyTextField(
+                password,
+                "Пароль",
+                {password.value = it},
+                modifier = Modifier
+                    .padding(bottom=30.dp)
+                    .fillMaxWidth()
+                    .heightIn(max=55.dp)
+            )
+            MyTextField(
+                confirmPassword,
+                "Пароль повторно",
+                {confirmPassword.value = it},
+                modifier = Modifier
+                    .padding(bottom=60.dp)
+                    .fillMaxWidth()
+                    .heightIn(max=55.dp)
+            )
+            Button(
+                {
+                    viewModel.register(login.value.text, password.value.text, confirmPassword.value.text)
+                },
+                colors = ButtonDefaults.buttonColors(Color(0xFF388DF2)),
+                border = BorderStroke(1.dp, Color(0xFF0085FF)),
+                shape = RoundedCornerShape(15.dp),
+                modifier = Modifier.padding(bottom=20.dp).fillMaxWidth()
+            ) {
+                Text(
+                    text = "Зарегистрироваться",
+                    style = TextStyle(
+                        fontSize = 24.sp,
+                        fontWeight = FontWeight(400),
+                        color = Color(0xFFFFFFFF),
+                    )
+                )
+            }
+            Text(
+                text = "Уже есть аккаунт?",
+                style = TextStyle(
+                    fontSize = 16.sp,
+                    fontWeight = FontWeight(400),
+                    color = Color(0xFFB6B3B3),
+                ),
+                modifier = Modifier.clickable {
+                    navController.navigate(ScreenPaths.Login.route)
+                }
+            )
+        }
+    }
+}
--- a/app/src/main/java/com/example/dtf/ui/theme/Color.kt
+++ b/app/src/main/java/com/example/dtf/ui/theme/Color.kt
@ -0,0 +1,11 @@
+package com.example.dtf.ui.theme
+
+import androidx.compose.ui.graphics.Color
+
+val Purple80 = Color(0xFFD0BCFF)
+val PurpleGrey80 = Color(0xFFCCC2DC)
+val Pink80 = Color(0xFFEFB8C8)
+
+val Purple40 = Color(0xFF6650a4)
+val PurpleGrey40 = Color(0xFF625b71)
+val Pink40 = Color(0xFF7D5260)
--- a/app/src/main/java/com/example/dtf/ui/theme/Shape.kt
+++ b/app/src/main/java/com/example/dtf/ui/theme/Shape.kt
@ -0,0 +1,11 @@
+package com.example.dtf.ui.theme
+
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.Shapes
+import androidx.compose.ui.unit.dp
+
+val Shapes = Shapes(
+    small = RoundedCornerShape(4.dp),
+    medium = RoundedCornerShape(4.dp),
+    large = RoundedCornerShape(0.dp)
+)
--- a/app/src/main/java/com/example/dtf/ui/theme/Theme.kt
+++ b/app/src/main/java/com/example/dtf/ui/theme/Theme.kt
@ -0,0 +1,41 @@
+package com.example.dtf.ui.theme
+
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.material.MaterialTheme
+import androidx.compose.material.darkColors
+import androidx.compose.material.lightColors
+import androidx.compose.runtime.Composable
+
+private val DarkColorPalette = darkColors(
+
+)
+
+private val LightColorPalette = lightColors(
+    /* Other default colors to override
+    background = Color.White,
+    surface = Color.White,
+    onPrimary = Color.White,
+    onSecondary = Color.Black,
+    onBackground = Color.Black,
+    onSurface = Color.Black,
+    */
+)
+
+@Composable
+fun DTFTheme(
+    darkTheme: Boolean = isSystemInDarkTheme(),
+    content: @Composable () -> Unit
+) {
+    val colors = if (darkTheme) {
+        DarkColorPalette
+    } else {
+        LightColorPalette
+    }
+
+    MaterialTheme(
+        colors = colors,
+        typography = Typography,
+        shapes = Shapes,
+        content = content
+    )
+}
--- a/app/src/main/java/com/example/dtf/ui/theme/Type.kt
+++ b/app/src/main/java/com/example/dtf/ui/theme/Type.kt
@ -0,0 +1,34 @@
+package com.example.dtf.ui.theme
+
+import androidx.compose.material.Typography
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.sp
+
+// Set of Material typography styles to start with
+val Typography = Typography(
+        body1 = TextStyle(
+                fontFamily = FontFamily.Default,
+                fontWeight = FontWeight.Normal,
+                fontSize = 16.sp,
+                lineHeight = 24.sp,
+                letterSpacing = 0.5.sp
+        )
+        /* Other default text styles to override
+    titleLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 22.sp,
+        lineHeight = 28.sp,
+        letterSpacing = 0.sp
+    ),
+    labelSmall = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Medium,
+        fontSize = 11.sp,
+        lineHeight = 16.sp,
+        letterSpacing = 0.5.sp
+    )
+    */
+)
--- a/app/src/main/java/com/example/dtf/utils/ScreenPaths.kt
+++ b/app/src/main/java/com/example/dtf/utils/ScreenPaths.kt
@ -0,0 +1,12 @@
+package com.example.dtf.utils
+
+sealed class ScreenPaths (val route: String){
+    object Auth: ScreenPaths("auth")
+    object Login: ScreenPaths("auth/login")
+    object Register: ScreenPaths("auth/register")
+    object Post: ScreenPaths("posts/{post}")
+    object Posts: ScreenPaths("posts")
+    object NewPost: ScreenPaths("posts/new")
+    object EditPost: ScreenPaths("posts/{post}/edit")
+    object Profile: ScreenPaths("profile")
+}
--- a/app/src/main/java/com/example/dtf/viewmodels/EditPostViewModel.kt
+++ b/app/src/main/java/com/example/dtf/viewmodels/EditPostViewModel.kt
@ -0,0 +1,52 @@
+package com.example.dtf.viewmodels
+
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.example.dtf.PreferencesManager
+import com.example.dtf.models.Post
+import com.example.dtf.repositories.IPostRepository
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+@HiltViewModel
+class EditPostViewModel @Inject constructor(
+    private val postRepository: IPostRepository
+) : ViewModel() {
+    private val _editingPostState = MutableLiveData<Boolean?>(null)
+    val editingPostState: LiveData<Boolean?>
+        get() = _editingPostState
+
+    private val _post = MutableLiveData<Post>()
+    val post: LiveData<Post>
+        get() = _post
+
+    fun retrievePost(postId: Int) {
+        viewModelScope.launch {
+            postRepository.getById(postId).collect {
+                _post.postValue(it)
+            }
+        }
+    }
+
+    fun calmEditingState() {
+        _editingPostState.value = null
+    }
+
+    fun editPost(sharedPref: PreferencesManager, postId: Int, title: String, content: String) {
+        if (!sharedPref.getData("isModerator", "false").toBooleanStrict()) return
+
+        viewModelScope.launch {
+            if (title.isNotEmpty() && content.isNotEmpty()) {
+                postRepository.getById(postId).collect {
+                    postRepository.update(Post(postId, title, content, it.date, it.user_id, it.category_id))
+                    _editingPostState.postValue(true)
+                }
+            } else {
+                _editingPostState.postValue(false)
+            }
+        }
+    }
+}
--- a/app/src/main/java/com/example/dtf/viewmodels/LoginViewModel.kt
+++ b/app/src/main/java/com/example/dtf/viewmodels/LoginViewModel.kt
@ -0,0 +1,48 @@
+package com.example.dtf.viewmodels
+
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.example.dtf.PreferencesManager
+import com.example.dtf.api.ServerService
+import com.example.dtf.dto.Credentials
+import com.example.dtf.repositories.IUserRepository
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+@HiltViewModel
+class LoginViewModel @Inject constructor(
+    private val serverService: ServerService,
+) : ViewModel() {
+    private val _successState = MutableLiveData<Boolean?>()
+    val successState: LiveData<Boolean?>
+        get() = _successState
+
+    fun calmSuccessState() {
+        _successState.postValue(null)
+    }
+
+    fun login(sharedPref: PreferencesManager, username: String, password: String) {
+        viewModelScope.launch {
+            val token = serverService.login(Credentials(username, password))
+
+            if (token.token.isEmpty()) {
+                _successState.postValue(false)
+                return@launch
+            }
+
+            ServerService.setToken(token.token)
+
+            val user = serverService.getCurrentUser()
+
+            sharedPref.saveData("token", token.token)
+            sharedPref.saveData("username", user.username)
+            sharedPref.saveData("isModerator", user.is_moderator.toString())
+            sharedPref.saveData("userId", user.id.toString())
+
+            _successState.postValue(true)
+        }
+    }
+}
--- a/app/src/main/java/com/example/dtf/viewmodels/NewPostViewModel.kt
+++ b/app/src/main/java/com/example/dtf/viewmodels/NewPostViewModel.kt
@ -0,0 +1,53 @@
+package com.example.dtf.viewmodels
+
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.example.dtf.PreferencesManager
+import com.example.dtf.models.Post
+import com.example.dtf.repositories.ICategoryRepository
+import com.example.dtf.repositories.IPostRepository
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.launch
+import java.util.Date
+import javax.inject.Inject
+
+@HiltViewModel
+class NewPostViewModel @Inject constructor(
+    private val postRepository: IPostRepository,
+    private val categoryRepository: ICategoryRepository
+) : ViewModel() {
+    private val _addingPostState = MutableLiveData<Boolean?>(null)
+    val addingPostState: LiveData<Boolean?>
+        get() = _addingPostState
+
+    fun getCategories() = categoryRepository.getAllCached()
+
+    fun calmAddingState() {
+        _addingPostState.value = null
+    }
+
+    fun addPost(sharedPref: PreferencesManager, categoryId: Int, title: String, content: String) {
+        if (!sharedPref.getData("isModerator", "false").toBooleanStrict()) return
+
+        viewModelScope.launch {
+            if (title.isNotEmpty() && content.isNotEmpty()) {
+                postRepository.insert(
+                    Post(
+                        null,
+                        title,
+                        content,
+                        "${Date().year + 1900}-${Date().month + 1}-${Date().date}",
+                        sharedPref.getData("userId", "0").toInt(),
+                        categoryId
+                    )
+                )
+
+                _addingPostState.postValue(true)
+            } else {
+                _addingPostState.postValue(false)
+            }
+        }
+    }
+}
--- a/app/src/main/java/com/example/dtf/viewmodels/PostViewModel.kt
+++ b/app/src/main/java/com/example/dtf/viewmodels/PostViewModel.kt
@ -0,0 +1,91 @@
+package com.example.dtf.viewmodels
+
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import androidx.paging.PagingData
+import com.example.dtf.PreferencesManager
+import com.example.dtf.models.Comment
+import com.example.dtf.models.Like
+import com.example.dtf.models.Post
+import com.example.dtf.repositories.ICommentRepository
+import com.example.dtf.repositories.ILikeRepository
+import com.example.dtf.repositories.IPostRepository
+import com.example.dtf.repositories.IUserRepository
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.launch
+import java.util.Date
+import javax.inject.Inject
+
+@HiltViewModel
+class PostViewModel @Inject constructor(
+    private val postRepository: IPostRepository,
+    private val commentRepository: ICommentRepository,
+    private val likeRepository: ILikeRepository,
+    private val userRepository: IUserRepository
+) : ViewModel() {
+    private val _post = MutableLiveData<Post>()
+    val post: LiveData<Post>
+        get() = _post
+
+    fun retrievePost(postId: Int) {
+        viewModelScope.launch {
+            postRepository.getById(postId).collect {
+                _post.postValue(it)
+            }
+        }
+    }
+
+    fun getLikes(postId: Int) = likeRepository.countByPost(postId)
+
+    fun likePost(sharedPref: PreferencesManager, postId: Int) {
+        val userId = sharedPref.getData("userId", "-1").toInt()
+
+        if (userId == -1) return
+
+        viewModelScope.launch {
+            likeRepository.insert(Like(userId, postId))
+        }
+    }
+
+    fun unlikePost(sharedPref: PreferencesManager, postId: Int) {
+        val userId = sharedPref.getData("userId", "-1").toInt()
+
+        if (userId == -1) return
+
+        viewModelScope.launch {
+            likeRepository.delete(Like(userId, postId))
+        }
+    }
+
+    fun isLiked(sharedPref: PreferencesManager, postId: Int)
+        = likeRepository.isLikedByUser(
+            sharedPref.getData("userId", "-1").toInt(),
+            postId
+        )
+
+    fun addComment(sharedPref: PreferencesManager, postId: Int, content: String) {
+        val userId = sharedPref.getData("userId", "-1").toInt()
+
+        if (userId == -1 || content.trim().isEmpty()) return
+
+        viewModelScope.launch {
+            commentRepository.insert(
+                Comment(
+                    null,
+                    userId,
+                    postId,
+                    content,
+                    "${Date().year + 1900}-${Date().month + 1}-${Date().date}",
+                    sharedPref.getData("username", "Unknown")
+                )
+            )
+        }
+    }
+
+    fun getCommentsAuthor(comment: Comment) = userRepository.getById(comment.user_id)
+
+    fun getCommentsListUiState(postId: Int): Flow<PagingData<Comment>> = commentRepository.getByPost(postId)
+}
--- a/app/src/main/java/com/example/dtf/viewmodels/PostsViewModel.kt
+++ b/app/src/main/java/com/example/dtf/viewmodels/PostsViewModel.kt
@ -0,0 +1,53 @@
+package com.example.dtf.viewmodels
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.example.dtf.PreferencesManager
+import com.example.dtf.models.Like
+import com.example.dtf.repositories.ICategoryRepository
+import com.example.dtf.repositories.ILikeRepository
+import com.example.dtf.repositories.IPostRepository
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+@HiltViewModel
+class PostsViewModel @Inject constructor(
+    private val postRepository: IPostRepository,
+    private val categoryRepository: ICategoryRepository,
+    private val likeRepository: ILikeRepository
+) : ViewModel() {
+    fun getLikes(postId: Int) = likeRepository.countByPost(postId)
+
+    fun likePost(sharedPref: PreferencesManager, postId: Int) {
+        val userId = sharedPref.getData("userId", "-1").toInt()
+
+        if (userId == -1) return
+
+        viewModelScope.launch {
+            likeRepository.insert(Like(userId, postId))
+        }
+    }
+
+    fun unlikePost(sharedPref: PreferencesManager, postId: Int) {
+        val userId = sharedPref.getData("userId", "-1").toInt()
+
+        if (userId == -1) return
+
+        viewModelScope.launch {
+            likeRepository.delete(Like(userId, postId))
+        }
+    }
+
+    fun isLiked(sharedPref: PreferencesManager, postId: Int)
+            = likeRepository.isLikedByUser(
+        sharedPref.getData("userId", "-1").toInt(),
+        postId
+    )
+
+    fun getCategoriesListUiState() = categoryRepository.getAll()
+
+    fun getInitialCategory() = categoryRepository.getFirst()
+
+    fun getPostsListUiState(categoryId: Int) = postRepository.getByCategory(categoryId)
+}
--- a/app/src/main/java/com/example/dtf/viewmodels/ProfileViewModel.kt
+++ b/app/src/main/java/com/example/dtf/viewmodels/ProfileViewModel.kt
@ -0,0 +1,31 @@
+package com.example.dtf.viewmodels
+
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.example.dtf.PreferencesManager
+import com.example.dtf.models.User
+import com.example.dtf.repositories.offline.OfflineUserRepository
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+@HiltViewModel
+class ProfileViewModel @Inject constructor(
+    private val userRepository: OfflineUserRepository
+) : ViewModel() {
+    private val _user = MutableLiveData<User>()
+    val user: LiveData<User>
+        get() = _user
+
+    fun retrieveUser(sharedPref: PreferencesManager) {
+        _user.postValue(User(null, sharedPref.getData("username", "Nickname")))
+    }
+
+    fun logout(sharedPref: PreferencesManager) {
+        sharedPref.deleteData("token")
+        sharedPref.deleteData("username")
+        sharedPref.deleteData("isModerator")
+    }
+}
--- a/app/src/main/java/com/example/dtf/viewmodels/RegisterViewModel.kt
+++ b/app/src/main/java/com/example/dtf/viewmodels/RegisterViewModel.kt
@ -0,0 +1,49 @@
+package com.example.dtf.viewmodels
+
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.example.dtf.api.ServerService
+import com.example.dtf.dto.Credentials
+import com.example.dtf.repositories.offline.OfflineUserRepository
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+@HiltViewModel
+class RegisterViewModel @Inject constructor(
+    private val serverService: ServerService
+) : ViewModel() {
+    private val _successState = MutableLiveData<Boolean?>()
+    val successState: LiveData<Boolean?>
+        get() = _successState
+
+    fun calmSuccessState() {
+        _successState.postValue(null)
+    }
+
+    fun register(username: String, password: String, confirmPassword: String) {
+        if (username.length < 5 || username.length > 20) {
+            _successState.postValue(false)
+            return
+        }
+
+        if (password.length < 8 || password.length > 30) {
+            _successState.postValue(false)
+            return
+        }
+
+        if (password != confirmPassword) {
+            _successState.postValue(false)
+            return
+        }
+        viewModelScope.launch {
+            if (serverService.register(Credentials(username, password)) == "NOT OK") {
+                _successState.postValue(false)
+            } else {
+                _successState.postValue(true)
+            }
+        }
+    }
+}
--- a/app/src/main/java/com/example/dtf/widgets/BottomNavBar.kt
+++ b/app/src/main/java/com/example/dtf/widgets/BottomNavBar.kt
@ -0,0 +1,83 @@
+package com.example.dtf.widgets
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.size
+import androidx.compose.material.BottomNavigation
+import androidx.compose.material.BottomNavigationItem
+import androidx.compose.material.Icon
+import androidx.compose.material.Text
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Edit
+import androidx.compose.material.icons.filled.Home
+import androidx.compose.material.icons.filled.Person
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.navigation.NavController
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.navigation.compose.currentBackStackEntryAsState
+import com.example.dtf.PreferencesManager
+import com.example.dtf.db.AppDatabase
+import com.example.dtf.models.User
+import com.example.dtf.utils.ScreenPaths
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+
+@Composable
+fun BottomNavBar(navController: NavController) {
+    val sharedPref = PreferencesManager(LocalContext.current)
+
+    BottomNavigation(
+        modifier = Modifier.height(70.dp),
+        backgroundColor = Color.White,
+        contentColor = Color.Black
+    ) {
+        val navBackStackEntry by navController.currentBackStackEntryAsState()
+        val currentRoute = navBackStackEntry?.destination?.route
+        listOfNotNull(
+            Triple(ScreenPaths.Posts.route, Icons.Default.Home, "Новости"),
+            if (sharedPref.getData("isModerator", "false").toBooleanStrict()) {
+                Triple(ScreenPaths.NewPost.route, Icons.Default.Edit, "Создать")
+            } else { null },
+            Triple(ScreenPaths.Profile.route, Icons.Default.Person, "Профиль")
+        ).forEach { x ->
+            BottomNavigationItem(
+                icon = {
+                    Icon(
+                        imageVector = x.second,
+                        contentDescription = x.third,
+                        modifier = Modifier.size(42.dp)
+                    ) },
+                selectedContentColor = Color.Black,
+                unselectedContentColor = Color.Black.copy(0.4f),
+                alwaysShowLabel = true,
+                selected = currentRoute == x.first,
+                onClick = {
+                    navController.navigate(x.first) {
+                        navController.graph.startDestinationRoute?.let { route ->
+                            popUpTo(route) {
+                                saveState = true
+                            }
+                        }
+                        launchSingleTop = true
+                        restoreState = true
+                    }
+                },
+                label = { Text(x.third) }
+            )
+        }
+    }
+}
--- a/app/src/main/java/com/example/dtf/widgets/MyTextField.kt
+++ b/app/src/main/java/com/example/dtf/widgets/MyTextField.kt
@ -0,0 +1,45 @@
+package com.example.dtf.widgets
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.border
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.Text
+import androidx.compose.material.TextField
+import androidx.compose.material.TextFieldDefaults
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.MutableState
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.input.TextFieldValue
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+
+@Composable
+fun MyTextField(value: MutableState<TextFieldValue>, placeholder: String, onChanged: (TextFieldValue) -> Unit, modifier: Modifier, backgroundColor: Color = Color(0xFFF2F2F2), singleLine: Boolean = true) {
+    TextField(
+        value.value, onChanged,
+        shape = RoundedCornerShape(size = 15.dp),
+        colors = TextFieldDefaults.textFieldColors(
+            backgroundColor = backgroundColor,
+            disabledTextColor = Color.Transparent,
+            focusedIndicatorColor = Color.Transparent,
+            unfocusedIndicatorColor = Color.Transparent,
+            disabledIndicatorColor = Color.Transparent,
+        ),
+        placeholder = {
+            Text(
+                text=placeholder,
+                fontSize = 16.sp,
+                color = Color(0xFFAAAAAA)
+            )
+        },
+        singleLine = singleLine,
+        textStyle = TextStyle(
+            fontSize = 16.sp
+        ),
+        modifier = modifier
+                   .background(color = backgroundColor, shape = RoundedCornerShape(size = 15.dp))
+                   .border(width = 1.dp, color = Color(0xFFC7C7C7), shape = RoundedCornerShape(size = 15.dp))
+    )
+}
--- a/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
+++ b/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
@ -0,0 +1,30 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>
--- a/app/src/main/res/drawable/ic_launcher_background.xml
+++ b/app/src/main/res/drawable/ic_launcher_background.xml
@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>
--- a/app/src/main/res/font/jejugothic_regular.ttf
+++ b/app/src/main/res/font/jejugothic_regular.ttf
--- a/app/src/main/res/font/marckscript_regular.ttf
+++ b/app/src/main/res/font/marckscript_regular.ttf
--- a/app/src/main/res/font/nunito_wght.ttf
+++ b/app/src/main/res/font/nunito_wght.ttf
--- a/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
+++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
+++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/app/src/main/res/mipmap-anydpi-v33/ic_launcher.xml
+++ b/app/src/main/res/mipmap-anydpi-v33/ic_launcher.xml
@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/app/src/main/res/mipmap-hdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-hdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp
--- a/app/src/main/res/mipmap-mdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-mdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp
--- a/app/src/main/res/mipmap-xhdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-xhdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp
--- a/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp
--- a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="purple_200">#FFBB86FC</color>
+    <color name="purple_500">#FF6200EE</color>
+    <color name="purple_700">#FF3700B3</color>
+    <color name="teal_200">#FF03DAC5</color>
+    <color name="teal_700">#FF018786</color>
+    <color name="black">#FF000000</color>
+    <color name="white">#FFFFFFFF</color>
+</resources>
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">DTF</string>
+</resources>
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <style name="Theme.DTF" parent="android:Theme.Material.Light.NoActionBar">
+        <item name="android:statusBarColor">@color/purple_700</item>
+    </style>
+</resources>
--- a/app/src/main/res/xml/backup_rules.xml
+++ b/app/src/main/res/xml/backup_rules.xml
@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample backup rules file; uncomment and customize as necessary.
+   See https://developer.android.com/guide/topics/data/autobackup
+   for details.
+   Note: This file is ignored for devices older that API 31
+   See https://developer.android.com/about/versions/12/backup-restore
+-->
+<full-backup-content>
+    <!--
+   <include domain="sharedpref" path="."/>
+   <exclude domain="sharedpref" path="device.xml"/>
+-->
+</full-backup-content>
--- a/app/src/main/res/xml/data_extraction_rules.xml
+++ b/app/src/main/res/xml/data_extraction_rules.xml
@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample data extraction rules file; uncomment and customize as necessary.
+   See https://developer.android.com/about/versions/12/backup-restore#xml-changes
+   for details.
+-->
+<data-extraction-rules>
+    <cloud-backup>
+        <!-- TODO: Use <include> and <exclude> to control what is backed up.
+        <include .../>
+        <exclude .../>
+        -->
+    </cloud-backup>
+    <!--
+    <device-transfer>
+        <include .../>
+        <exclude .../>
+    </device-transfer>
+    -->
+</data-extraction-rules>
--- a/app/src/test/java/com/example/dtf/ExampleUnitTest.kt
+++ b/app/src/test/java/com/example/dtf/ExampleUnitTest.kt
@ -0,0 +1,17 @@
+package com.example.dtf
+
+import org.junit.Test
+
+import org.junit.Assert.*
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+class ExampleUnitTest {
+    @Test
+    fun addition_isCorrect() {
+        assertEquals(4, 2 + 2)
+    }
+}
--- a/build.gradle
+++ b/build.gradle
@ -0,0 +1,19 @@
+buildscript {
+    ext {
+        compose_ui_version = '1.2.0'
+    }
+    repositories {
+        google()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:4.0.0'
+        classpath 'com.google.dagger:hilt-android-gradle-plugin:2.42'
+    }
+}// Top-level build file where you can add configuration options common to all sub-projects/modules.
+plugins {
+    id 'com.android.application' version '7.4.2' apply false
+    id 'com.android.library' version '7.4.2' apply false
+    id 'org.jetbrains.kotlin.android' version '1.7.0' apply false
+    id 'org.jetbrains.kotlin.plugin.serialization' version '1.7.0' apply false
+    id 'org.jetbrains.kotlin.jvm' version '1.7.0' apply false
+}
--- a/gradle.properties
+++ b/gradle.properties
@ -0,0 +1,26 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app's APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true
+# Kotlin code style for this project: "official" or "obsolete":
+kotlin.code.style=official
+# Enables namespacing of each library's R class so that its R class includes only the
+# resources declared in the library itself and none from the library's dependencies,
+# thereby reducing the size of the R class for that library
+android.nonTransitiveRClass=true
+android.defaults.buildfeatures.buildconfig=true
+android.nonFinalResIds=false
+android.suppressUnsupportedCompileSdk=34
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@ -0,0 +1,6 @@
+#Fri Oct 06 03:21:29 GMT+04:00 2023
+distributionBase=GRADLE_USER_HOME
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.0-bin.zip
+distributionPath=wrapper/dists
+zipStorePath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
--- a/local.properties
+++ b/local.properties
@ -0,0 +1,8 @@
+## This file must *NOT* be checked into Version Control Systems,
+# as it contains information specific to your local configuration.
+#
+# Location of the SDK. This is only used by Gradle.
+# For customization when using a Version Control System, please read the
+# header note.
+#Fri Dec 22 01:26:17 GMT+04:00 2023
+sdk.dir=D\:\\Programs\\Android
--- a/Show More
+++ b/Show More