Курсовая: Вроде готово

app/src/main/java/com/example/dtf/AppModule.kt

@@ -2,11 +2,22 @@ package com.example.dtf
 
 import android.app.Application
 import androidx.room.*
-import com.example.dtf.api.ServerService
+import com.example.dtf.data.api.ServerService
-import com.example.dtf.db.AppDatabase
+import com.example.dtf.data.db.AppDatabase
-import com.example.dtf.repositories.*
+import com.example.dtf.data.repositories.ICategoryRepository
-import com.example.dtf.repositories.offline.*
+import com.example.dtf.data.repositories.ICommentRepository
-import com.example.dtf.repositories.online.*
+import com.example.dtf.data.repositories.ILikeRepository
+import com.example.dtf.data.repositories.IPostRepository
+import com.example.dtf.data.repositories.IUserRepository
+import com.example.dtf.data.repositories.offline.OfflineCategoryRepository
+import com.example.dtf.data.repositories.offline.OfflineCommentRepository
+import com.example.dtf.data.repositories.offline.OfflineLikeRepository
+import com.example.dtf.data.repositories.offline.OfflinePostRepository
+import com.example.dtf.data.repositories.offline.OfflineUserRepository
+import com.example.dtf.data.repositories.online.RestCommentRepository
+import com.example.dtf.data.repositories.online.RestLikeRepository
+import com.example.dtf.data.repositories.online.RestPostRepository
+import com.example.dtf.data.repositories.online.RestUserRepository
 import com.example.dtf.repositories.online.mediator.RestCategoryRepository
 import dagger.Module
 import dagger.Provides

app/src/main/java/com/example/dtf/MainActivity.kt

@@ -1,15 +1,16 @@
 package com.example.dtf
 
 import android.annotation.SuppressLint
+import android.os.Build
 import android.os.Bundle
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
+import androidx.annotation.RequiresApi
 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
@@ -24,19 +25,21 @@ 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.ui.screens.EditPostScreen
-import com.example.dtf.screens.LoginScreen
+import com.example.dtf.ui.screens.LoginScreen
-import com.example.dtf.screens.NewPostScreen
+import com.example.dtf.ui.screens.NewPostScreen
-import com.example.dtf.screens.PostScreen
+import com.example.dtf.ui.screens.PostScreen
-import com.example.dtf.screens.PostsScreen
+import com.example.dtf.ui.screens.PostsScreen
-import com.example.dtf.screens.ProfileScreen
+import com.example.dtf.ui.screens.ProfileScreen
-import com.example.dtf.screens.RegisterScreen
+import com.example.dtf.ui.screens.RegisterScreen
-import com.example.dtf.utils.ScreenPaths
+import com.example.dtf.ui.screens.TopPostsScreen
-import com.example.dtf.widgets.BottomNavBar
+import com.example.dtf.ui.utils.ScreenPaths
+import com.example.dtf.ui.widgets.BottomNavBar
 import dagger.hilt.android.AndroidEntryPoint
 
 @AndroidEntryPoint
 class MainActivity : ComponentActivity() {
+    @RequiresApi(Build.VERSION_CODES.O)
     @SuppressLint("UnusedMaterial3ScaffoldPaddingParameter",
         "UnusedMaterialScaffoldPaddingParameter"
     )
@@ -100,6 +103,10 @@ class MainActivity : ComponentActivity() {
                             includeBackButton.value = false
                             PostsScreen(navController)
                         }
+                        composable(ScreenPaths.TopPosts.route) {
+                            includeBackButton.value = false
+                            TopPostsScreen(navController)
+                        }
                         composable(ScreenPaths.NewPost.route) {
                             includeBackButton.value = true
                             NewPostScreen(navController)

app/src/main/java/com/example/dtf/dao/CommentDao.kt

@@ -1,27 +0,0 @@
-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)
-}

app/src/main/java/com/example/dtf/data/api/ServerService.kt

@@ -1,30 +1,28 @@
-package com.example.dtf.api
+package com.example.dtf.data.api
 
-import com.example.dtf.dto.Credentials
+import com.example.dtf.data.dto.Credentials
-import com.example.dtf.dto.EditPostDto
+import com.example.dtf.data.dto.EditPostDto
-import com.example.dtf.dto.MeUser
+import com.example.dtf.data.dto.MeUser
-import com.example.dtf.dto.NewCommentDto
+import com.example.dtf.data.dto.NewCommentDto
-import com.example.dtf.dto.NewPostDto
+import com.example.dtf.data.dto.NewPostDto
-import com.example.dtf.dto.Token
+import com.example.dtf.data.dto.Token
-import com.example.dtf.dto.remote.CategoriesResponse
+import com.example.dtf.data.dto.remote.CategoriesResponse
-import com.example.dtf.dto.remote.CommentsResponse
+import com.example.dtf.data.dto.remote.CommentsResponse
-import com.example.dtf.dto.remote.PostsResponse
+import com.example.dtf.data.dto.remote.PostsResponse
-import com.example.dtf.models.Category
+import com.example.dtf.data.models.Comment
-import com.example.dtf.models.Comment
+import com.example.dtf.data.models.Post
-import com.example.dtf.models.Post
+import com.example.dtf.data.models.User
-import com.example.dtf.models.User
 import com.jakewharton.retrofit2.converter.kotlinx.serialization.asConverterFactory
+import kotlinx.serialization.json.Json
+import okhttp3.MediaType.Companion.toMediaType
 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.POST
 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")
@@ -53,6 +51,13 @@ interface ServerService {
         @Query("limit") limit: Int?
     ): PostsResponse
 
+    @GET("post/top")
+    suspend fun getTopPosts(
+        @Query("category") categoryId: Int,
+        @Query("from_date") fromDate: String?,
+        @Query("to_date") toDate: String?
+    ): List<Post>
+
     @GET("post/{postId}")
     suspend fun getPost(
         @Path("postId") postId: Int
@@ -107,7 +112,7 @@ interface ServerService {
     ): User
 
     companion object {
-        private const val BASE_URL = "http://192.168.1.9:8000/"
+        private const val BASE_URL = "http://192.168.0.103:8000/"
 
         private var _token: String = ""
 

app/src/main/java/com/example/dtf/data/dao/CategoryDao.kt

@@ -1,8 +1,13 @@
-package com.example.dtf.dao
+package com.example.dtf.data.dao
 
 import androidx.paging.PagingSource
-import androidx.room.*
+import androidx.room.Dao
-import com.example.dtf.models.*
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import androidx.room.Update
+import com.example.dtf.data.models.Category
 import kotlinx.coroutines.flow.Flow
 
 @Dao
@@ -27,4 +32,7 @@ interface CategoryDao {
 
     @Query("select * from category limit 1")
     fun getFirst() : Flow<Category>
+
+    @Query("select * from category where id >= :loadKey limit :limit")
+    fun getByLoadKey(loadKey: Int, limit: Int) : Flow<List<Category>>
 }

app/src/main/java/com/example/dtf/data/dao/CommentDao.kt

@@ -0,0 +1,35 @@
+package com.example.dtf.data.dao
+
+import androidx.paging.PagingSource
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import androidx.room.Update
+import com.example.dtf.data.models.Comment
+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("select * from comment where id >= :loadKey and post_id = :postId order by id desc limit :limit")
+    fun getByLoadKeyInitial(postId: Int, loadKey: Int, limit: Int) : Flow<List<Comment>>
+
+    @Query("select * from comment where id <= :loadKey and post_id = :postId order by id desc limit :limit")
+    fun getByLoadKey(postId: Int, loadKey: Int, limit: Int) : Flow<List<Comment>>
+}

app/src/main/java/com/example/dtf/data/dao/LikeDao.kt

@@ -1,7 +1,11 @@
-package com.example.dtf.dao
+package com.example.dtf.data.dao
 
-import androidx.room.*
+import androidx.room.Dao
-import com.example.dtf.models.Like
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import com.example.dtf.data.models.Like
 import kotlinx.coroutines.flow.Flow
 
 @Dao

app/src/main/java/com/example/dtf/data/dao/PostDao.kt

@@ -1,8 +1,13 @@
-package com.example.dtf.dao
+package com.example.dtf.data.dao
 
 import androidx.paging.PagingSource
-import androidx.room.*
+import androidx.room.Dao
-import com.example.dtf.models.*
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import androidx.room.Update
+import com.example.dtf.data.models.Post
 import kotlinx.coroutines.flow.Flow
 
 @Dao
@@ -22,6 +27,6 @@ interface PostDao {
     @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")
+    @Query("select * from post where category_id = :categoryId and id >= :loadKey ORDER BY date DESC limit :limit")
-    fun deleteByQuery(query: String)
+    fun getByLoadKey(categoryId: Int, loadKey: Int, limit: Int) : Flow<List<Post>>
 }

app/src/main/java/com/example/dtf/data/dao/UserDao.kt

@@ -1,7 +1,12 @@
-package com.example.dtf.dao
+package com.example.dtf.data.dao
 
-import androidx.room.*
+import androidx.room.Dao
-import com.example.dtf.models.User
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import androidx.room.Update
+import com.example.dtf.data.models.User
 import kotlinx.coroutines.flow.Flow
 
 @Dao

app/src/main/java/com/example/dtf/data/db/AppDatabase.kt

@@ -1,18 +1,18 @@
-package com.example.dtf.db
+package com.example.dtf.data.db
 
-import android.content.Context
+import androidx.room.Database
-import androidx.room.*
+import androidx.room.RoomDatabase
-import com.example.dtf.models.Category
+import androidx.room.TypeConverters
-import com.example.dtf.models.Comment
+import com.example.dtf.data.dao.CategoryDao
-import com.example.dtf.models.Post
+import com.example.dtf.data.dao.CommentDao
-import com.example.dtf.models.User
+import com.example.dtf.data.dao.LikeDao
-import kotlinx.coroutines.CoroutineScope
+import com.example.dtf.data.dao.PostDao
-import kotlinx.coroutines.Dispatchers
+import com.example.dtf.data.dao.UserDao
-import kotlinx.coroutines.launch
+import com.example.dtf.data.models.Category
-import androidx.sqlite.db.SupportSQLiteDatabase
+import com.example.dtf.data.models.Comment
-import com.example.dtf.dao.*
+import com.example.dtf.data.models.Like
-import com.example.dtf.models.Like
+import com.example.dtf.data.models.Post
-import java.util.Date
+import com.example.dtf.data.models.User
 
 @Database(
     entities = [

app/src/main/java/com/example/dtf/data/db/Converter.kt

@@ -1,4 +1,4 @@
-package com.example.dtf.db
+package com.example.dtf.data.db
 
 import androidx.room.TypeConverter
 import java.util.Date

app/src/main/java/com/example/dtf/data/dto/Credentials.kt

@@ -1,4 +1,4 @@
-package com.example.dtf.dto
+package com.example.dtf.data.dto
 
 import kotlinx.serialization.Serializable
 

app/src/main/java/com/example/dtf/data/dto/EditPostDto.kt

@@ -1,4 +1,4 @@
-package com.example.dtf.dto
+package com.example.dtf.data.dto
 
 import kotlinx.serialization.Serializable
 

app/src/main/java/com/example/dtf/data/dto/MeUser.kt

@@ -1,4 +1,4 @@
-package com.example.dtf.dto
+package com.example.dtf.data.dto
 
 import kotlinx.serialization.Serializable
 

app/src/main/java/com/example/dtf/data/dto/NewCommentDto.kt

@@ -1,4 +1,4 @@
-package com.example.dtf.dto
+package com.example.dtf.data.dto
 
 import kotlinx.serialization.Serializable
 

app/src/main/java/com/example/dtf/data/dto/NewPostDto.kt

@@ -1,4 +1,4 @@
-package com.example.dtf.dto
+package com.example.dtf.data.dto
 
 import kotlinx.serialization.Serializable
 

app/src/main/java/com/example/dtf/data/dto/Token.kt

@@ -1,4 +1,4 @@
-package com.example.dtf.dto
+package com.example.dtf.data.dto
 
 import kotlinx.serialization.Serializable
 

app/src/main/java/com/example/dtf/data/dto/remote/CategoriesResponse.kt

@@ -1,6 +1,6 @@
-package com.example.dtf.dto.remote
+package com.example.dtf.data.dto.remote
 
-import com.example.dtf.models.Category
+import com.example.dtf.data.models.Category
 import kotlinx.serialization.Serializable
 
 @Serializable

app/src/main/java/com/example/dtf/data/dto/remote/CommentsResponse.kt

@@ -1,6 +1,6 @@
-package com.example.dtf.dto.remote
+package com.example.dtf.data.dto.remote
 
-import com.example.dtf.models.Comment
+import com.example.dtf.data.models.Comment
 import kotlinx.serialization.Serializable
 
 @Serializable

app/src/main/java/com/example/dtf/data/dto/remote/PostsResponse.kt

@@ -1,6 +1,6 @@
-package com.example.dtf.dto.remote
+package com.example.dtf.data.dto.remote
 
-import com.example.dtf.models.Post
+import com.example.dtf.data.models.Post
 import kotlinx.serialization.Serializable
 
 @Serializable

app/src/main/java/com/example/dtf/data/models/Category.kt

@@ -1,6 +1,8 @@
-package com.example.dtf.models
+package com.example.dtf.data.models
 
-import androidx.room.*
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.PrimaryKey
 import kotlinx.serialization.Serializable
 
 @Entity(tableName = "category")

app/src/main/java/com/example/dtf/data/models/Comment.kt

@@ -1,6 +1,8 @@
-package com.example.dtf.models
+package com.example.dtf.data.models
 
-import androidx.room.*
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.PrimaryKey
 import kotlinx.serialization.Serializable
 
 @Entity(tableName = "comment")

app/src/main/java/com/example/dtf/data/models/Like.kt

@@ -1,6 +1,7 @@
-package com.example.dtf.models
+package com.example.dtf.data.models
 
-import androidx.room.*
+import androidx.room.ColumnInfo
+import androidx.room.Entity
 
 @Entity(tableName = "likes", primaryKeys = ["user_id", "post_id"])
 data class Like (

app/src/main/java/com/example/dtf/data/models/Post.kt

@@ -1,6 +1,8 @@
-package com.example.dtf.models
+package com.example.dtf.data.models
 
-import androidx.room.*
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.PrimaryKey
 import kotlinx.serialization.Serializable
 
 //private val posts = listOf(

app/src/main/java/com/example/dtf/data/models/User.kt

@@ -1,6 +1,8 @@
-package com.example.dtf.models
+package com.example.dtf.data.models
 
-import androidx.room.*
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.PrimaryKey
 import kotlinx.serialization.Serializable
 
 @Entity(tableName = "user")

app/src/main/java/com/example/dtf/data/repositories/ICategoryRepository.kt

@@ -1,7 +1,7 @@
-package com.example.dtf.repositories
+package com.example.dtf.data.repositories
 
 import androidx.paging.PagingData
-import com.example.dtf.models.Category
+import com.example.dtf.data.models.Category
 import kotlinx.coroutines.flow.Flow
 
 interface ICategoryRepository {

app/src/main/java/com/example/dtf/data/repositories/ICommentRepository.kt

@@ -1,7 +1,7 @@
-package com.example.dtf.repositories
+package com.example.dtf.data.repositories
 
 import androidx.paging.PagingData
-import com.example.dtf.models.Comment
+import com.example.dtf.data.models.Comment
 import kotlinx.coroutines.flow.Flow
 
 interface ICommentRepository {

app/src/main/java/com/example/dtf/data/repositories/ILikeRepository.kt

@@ -1,6 +1,6 @@
-package com.example.dtf.repositories
+package com.example.dtf.data.repositories
 
-import com.example.dtf.models.Like
+import com.example.dtf.data.models.Like
 import kotlinx.coroutines.flow.Flow
 
 interface ILikeRepository {

app/src/main/java/com/example/dtf/data/repositories/IPostRepository.kt

@@ -1,8 +1,9 @@
-package com.example.dtf.repositories
+package com.example.dtf.data.repositories
 
 import androidx.paging.PagingData
-import com.example.dtf.models.Post
+import com.example.dtf.data.models.Post
 import kotlinx.coroutines.flow.Flow
+import java.time.LocalDate
 
 interface IPostRepository {
     suspend fun insert(post: Post)
@@ -10,4 +11,6 @@ interface IPostRepository {
 
     fun getById(id: Int): Flow<Post>
     fun getByCategory(categoryId: Int): Flow<PagingData<Post>>
+
+    fun getTopTen(categoryId: Int, fromDate: LocalDate, toDate: LocalDate): Flow<List<Post>>
 }

app/src/main/java/com/example/dtf/data/repositories/IUserRepository.kt

@@ -1,6 +1,6 @@
-package com.example.dtf.repositories
+package com.example.dtf.data.repositories
 
-import com.example.dtf.models.User
+import com.example.dtf.data.models.User
 import kotlinx.coroutines.flow.Flow
 
 interface IUserRepository {

app/src/main/java/com/example/dtf/data/repositories/offline/OfflineCategoryRepository.kt

@@ -1,10 +1,10 @@
-package com.example.dtf.repositories.offline
+package com.example.dtf.data.repositories.offline
 
 import androidx.paging.Pager
 import androidx.paging.PagingConfig
-import com.example.dtf.dao.CategoryDao
+import com.example.dtf.data.dao.CategoryDao
-import com.example.dtf.models.Category
+import com.example.dtf.data.models.Category
-import com.example.dtf.repositories.ICategoryRepository
+import com.example.dtf.data.repositories.ICategoryRepository
 import kotlinx.coroutines.flow.Flow
 import javax.inject.Inject
 

app/src/main/java/com/example/dtf/data/repositories/offline/OfflineCommentRepository.kt

@@ -1,9 +1,10 @@
-package com.example.dtf.repositories.offline
+package com.example.dtf.data.repositories.offline
 
-import androidx.paging.*
+import androidx.paging.Pager
-import com.example.dtf.dao.CommentDao
+import androidx.paging.PagingConfig
-import com.example.dtf.models.Comment
+import com.example.dtf.data.dao.CommentDao
-import com.example.dtf.repositories.ICommentRepository
+import com.example.dtf.data.models.Comment
+import com.example.dtf.data.repositories.ICommentRepository
 import javax.inject.Inject
 
 class OfflineCommentRepository @Inject constructor(

app/src/main/java/com/example/dtf/data/repositories/offline/OfflineLikeRepository.kt

@@ -1,8 +1,8 @@
-package com.example.dtf.repositories.offline
+package com.example.dtf.data.repositories.offline
 
-import com.example.dtf.dao.LikeDao
+import com.example.dtf.data.dao.LikeDao
-import com.example.dtf.models.Like
+import com.example.dtf.data.models.Like
-import com.example.dtf.repositories.ILikeRepository
+import com.example.dtf.data.repositories.ILikeRepository
 import javax.inject.Inject
 
 class OfflineLikeRepository @Inject constructor(

app/src/main/java/com/example/dtf/data/repositories/offline/OfflinePostRepository.kt

@@ -1,9 +1,12 @@
-package com.example.dtf.repositories.offline
+package com.example.dtf.data.repositories.offline
 
-import androidx.paging.*
+import androidx.paging.Pager
-import com.example.dtf.dao.PostDao
+import androidx.paging.PagingConfig
-import com.example.dtf.models.Post
+import com.example.dtf.data.dao.PostDao
-import com.example.dtf.repositories.IPostRepository
+import com.example.dtf.data.models.Post
+import com.example.dtf.data.repositories.IPostRepository
+import kotlinx.coroutines.flow.Flow
+import java.time.LocalDate
 import javax.inject.Inject
 
 class OfflinePostRepository @Inject constructor(
@@ -22,4 +25,8 @@ class OfflinePostRepository @Inject constructor(
         ),
         pagingSourceFactory = { postDao.getByCategory(categoryId.toString()) }
     ).flow
+
+    override fun getTopTen(categoryId: Int, fromDate: LocalDate, toDate: LocalDate): Flow<List<Post>> {
+        throw NotImplementedError("Cannot access top without internet connection")
+    }
 }

app/src/main/java/com/example/dtf/data/repositories/offline/OfflineUserRepository.kt

@@ -1,8 +1,7 @@
-package com.example.dtf.repositories.offline
+package com.example.dtf.data.repositories.offline
 
-import com.example.dtf.dao.UserDao
+import com.example.dtf.data.dao.UserDao
-import com.example.dtf.models.User
+import com.example.dtf.data.repositories.IUserRepository
-import com.example.dtf.repositories.IUserRepository
 import javax.inject.Inject
 
 class OfflineUserRepository @Inject constructor(

app/src/main/java/com/example/dtf/data/repositories/online/RestCategoryRepository.kt

@@ -4,12 +4,12 @@ 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.data.api.ServerService
-import com.example.dtf.db.AppDatabase
+import com.example.dtf.data.db.AppDatabase
-import com.example.dtf.models.Category
+import com.example.dtf.data.models.Category
-import com.example.dtf.repositories.ICategoryRepository
+import com.example.dtf.data.repositories.ICategoryRepository
+import com.example.dtf.data.repositories.online.mediator.CategoryMediator
 import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.flow
 import javax.inject.Inject
 
 class RestCategoryRepository @Inject constructor(

app/src/main/java/com/example/dtf/data/repositories/online/RestCommentRepository.kt

@@ -1,15 +1,15 @@
-package com.example.dtf.repositories.online
+package com.example.dtf.data.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.data.api.ServerService
-import com.example.dtf.db.AppDatabase
+import com.example.dtf.data.db.AppDatabase
-import com.example.dtf.dto.NewCommentDto
+import com.example.dtf.data.dto.NewCommentDto
-import com.example.dtf.models.Comment
+import com.example.dtf.data.models.Comment
-import com.example.dtf.repositories.ICommentRepository
+import com.example.dtf.data.repositories.ICommentRepository
-import com.example.dtf.repositories.online.mediator.CommentMediator
+import com.example.dtf.data.repositories.online.mediator.CommentMediator
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.flow
 import javax.inject.Inject

app/src/main/java/com/example/dtf/data/repositories/online/RestLikeRepository.kt

@@ -1,9 +1,9 @@
-package com.example.dtf.repositories.online
+package com.example.dtf.data.repositories.online
 
-import com.example.dtf.api.ServerService
+import com.example.dtf.data.api.ServerService
-import com.example.dtf.db.AppDatabase
+import com.example.dtf.data.db.AppDatabase
-import com.example.dtf.models.Like
+import com.example.dtf.data.models.Like
-import com.example.dtf.repositories.ILikeRepository
+import com.example.dtf.data.repositories.ILikeRepository
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.flow
 import javax.inject.Inject

app/src/main/java/com/example/dtf/data/repositories/online/RestPostRepository.kt

@@ -1,18 +1,21 @@
-package com.example.dtf.repositories.online
+package com.example.dtf.data.repositories.online
 
+import android.os.Build
+import androidx.annotation.RequiresApi
 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.data.api.ServerService
-import com.example.dtf.db.AppDatabase
+import com.example.dtf.data.db.AppDatabase
-import com.example.dtf.dto.EditPostDto
+import com.example.dtf.data.dto.EditPostDto
-import com.example.dtf.dto.NewPostDto
+import com.example.dtf.data.dto.NewPostDto
-import com.example.dtf.models.Post
+import com.example.dtf.data.models.Post
-import com.example.dtf.repositories.IPostRepository
+import com.example.dtf.data.repositories.IPostRepository
-import com.example.dtf.repositories.online.mediator.PostMediator
+import com.example.dtf.data.repositories.online.mediator.PostMediator
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.flow
+import java.time.LocalDate
 import javax.inject.Inject
 
 class RestPostRepository @Inject constructor(
@@ -46,4 +49,17 @@ class RestPostRepository @Inject constructor(
         remoteMediator = PostMediator(appDatabase, serverService, categoryId.toString()),
         pagingSourceFactory = { appDatabase.postDao().getByCategory(categoryId.toString()) }
     ).flow
+
+    @RequiresApi(Build.VERSION_CODES.O)
+    override fun getTopTen(categoryId: Int, fromDate: LocalDate, toDate: LocalDate): Flow<List<Post>> {
+        return flow {
+            emit(
+                serverService.getTopPosts(
+                    categoryId,
+                    "${fromDate.year}-${fromDate.monthValue}-${fromDate.dayOfMonth}",
+                    "${toDate.year}-${toDate.monthValue}-${toDate.dayOfMonth}"
+                )
+            )
+        }
+    }
 }

app/src/main/java/com/example/dtf/data/repositories/online/RestUserRepository.kt

@@ -1,9 +1,9 @@
-package com.example.dtf.repositories.online
+package com.example.dtf.data.repositories.online
 
-import com.example.dtf.api.ServerService
+import com.example.dtf.data.api.ServerService
-import com.example.dtf.db.AppDatabase
+import com.example.dtf.data.db.AppDatabase
-import com.example.dtf.models.User
+import com.example.dtf.data.models.User
-import com.example.dtf.repositories.IUserRepository
+import com.example.dtf.data.repositories.IUserRepository
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.flow
 import javax.inject.Inject

app/src/main/java/com/example/dtf/data/repositories/online/mediator/CategoryMediator.kt

@@ -1,13 +1,14 @@
-package com.example.dtf.repositories.online.mediator
+package com.example.dtf.data.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.data.api.ServerService
-import com.example.dtf.db.AppDatabase
+import com.example.dtf.data.db.AppDatabase
-import com.example.dtf.models.Category
+import com.example.dtf.data.models.Category
+import kotlinx.coroutines.flow.first
 import java.io.IOException
 
 @OptIn(ExperimentalPagingApi::class)
@@ -42,11 +43,14 @@ class CategoryMediator (
                 limit = state.config.pageSize
             )
 
-
             database.withTransaction {
+                val present = categoryDao.getByLoadKey(loadKey, state.config.pageSize).first()
+
                 if (loadType == LoadType.REFRESH) {
-                    for (category in response.categories) {
+                    for (category in present) {
-                        categoryDao.delete(category)
+                        if (category !in response.categories){
+                            categoryDao.delete(category)
+                        }
                     }
                 }
 

app/src/main/java/com/example/dtf/data/repositories/online/mediator/CommentMediator.kt

@@ -1,13 +1,14 @@
-package com.example.dtf.repositories.online.mediator
+package com.example.dtf.data.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.data.api.ServerService
-import com.example.dtf.db.AppDatabase
+import com.example.dtf.data.db.AppDatabase
-import com.example.dtf.models.Comment
+import com.example.dtf.data.models.Comment
+import kotlinx.coroutines.flow.first
 import java.io.IOException
 
 @OptIn(ExperimentalPagingApi::class)
@@ -46,8 +47,18 @@ class CommentMediator (
 
 
             database.withTransaction {
+                val present = if (loadKey == 0) {
+                    commentDao.getByLoadKeyInitial(query.toInt(), loadKey, state.config.pageSize).first()
+                } else {
+                    commentDao.getByLoadKey(query.toInt(), loadKey, state.config.pageSize).first()
+                }
+
                 if (loadType == LoadType.REFRESH) {
-                    commentDao.deleteByQuery(query)
+                    for (comment in present) {
+                        if (comment !in response.comments) {
+                            commentDao.delete(comment)
+                        }
+                    }
                 }
 
                 for (comment in response.comments) {

app/src/main/java/com/example/dtf/data/repositories/online/mediator/PostMediator.kt

@@ -1,13 +1,14 @@
-package com.example.dtf.repositories.online.mediator
+package com.example.dtf.data.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.data.api.ServerService
-import com.example.dtf.db.AppDatabase
+import com.example.dtf.data.db.AppDatabase
-import com.example.dtf.models.Post
+import com.example.dtf.data.models.Post
+import kotlinx.coroutines.flow.first
 import java.io.IOException
 
 @OptIn(ExperimentalPagingApi::class)
@@ -46,12 +47,18 @@ class PostMediator (
 
 
             database.withTransaction {
+                val present = postDao.getByLoadKey(query.toInt(), loadKey, state.config.pageSize).first()
+
                 if (loadType == LoadType.REFRESH) {
-                    postDao.deleteByQuery(query)
+                    for (post in present) {
+                        if (post !in response.posts) {
+                            postDao.delete(post)
+                        }
+                    }
                 }
 
-                for (comment in response.posts) {
+                for (post in response.posts) {
-                    postDao.insert(comment)
+                    postDao.insert(post)
                 }
             }
 

app/src/main/java/com/example/dtf/ui/screens/EditPostScreen.kt

@@ -1,26 +1,40 @@
-package com.example.dtf.screens
+package com.example.dtf.ui.screens
 
 import androidx.compose.foundation.BorderStroke
-import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.heightIn
+import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.verticalScroll
-import androidx.compose.material.*
+import androidx.compose.material.AlertDialog
-import androidx.compose.runtime.*
+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.ui.*
+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.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.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
 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.ui.utils.ScreenPaths
-import com.example.dtf.viewmodels.EditPostViewModel
+import com.example.dtf.ui.viewmodels.EditPostViewModel
-import com.example.dtf.widgets.MyTextField
+import com.example.dtf.ui.widgets.MyTextField
 
 @Composable
 fun EditPostScreen(navController: NavHostController, postId: Int) {

app/src/main/java/com/example/dtf/ui/screens/LoginScreen.kt

@@ -1,25 +1,40 @@
-package com.example.dtf.screens
+package com.example.dtf.ui.screens
 
 import androidx.compose.foundation.BorderStroke
 import androidx.compose.foundation.clickable
-import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.heightIn
+import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material.*
+import androidx.compose.material.AlertDialog
-import androidx.compose.runtime.*
+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.ui.*
+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.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.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
 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.ui.utils.ScreenPaths
-import com.example.dtf.viewmodels.LoginViewModel
+import com.example.dtf.ui.viewmodels.LoginViewModel
-import com.example.dtf.widgets.MyTextField
+import com.example.dtf.ui.widgets.MyTextField
 
 @Composable
 fun LoginScreen(navController: NavHostController) {

app/src/main/java/com/example/dtf/ui/screens/NewPostScreen.kt

@@ -1,29 +1,45 @@
-package com.example.dtf.screens
+package com.example.dtf.ui.screens
 
 import androidx.compose.foundation.BorderStroke
-import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.heightIn
+import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.verticalScroll
-import androidx.compose.material.*
+import androidx.compose.material.AlertDialog
-import androidx.compose.runtime.*
+import androidx.compose.material.Button
+import androidx.compose.material.ButtonDefaults
+import androidx.compose.material.DropdownMenu
+import androidx.compose.material.DropdownMenuItem
+import androidx.compose.material.Text
+import androidx.compose.material.TextButton
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.livedata.observeAsState
-import androidx.compose.ui.*
+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.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.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
 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.data.models.Category
-import com.example.dtf.utils.ScreenPaths
+import com.example.dtf.ui.utils.ScreenPaths
-import com.example.dtf.viewmodels.NewPostViewModel
+import com.example.dtf.ui.viewmodels.NewPostViewModel
-import com.example.dtf.widgets.MyTextField
+import com.example.dtf.ui.widgets.MyTextField
 
 @Composable
 fun NewPostScreen(navController: NavHostController) {

app/src/main/java/com/example/dtf/ui/screens/PostScreen.kt

@@ -1,32 +1,51 @@
-package com.example.dtf.screens
+package com.example.dtf.ui.screens
 
-import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.background
-import androidx.compose.foundation.*
+import androidx.compose.foundation.border
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material.*
+import androidx.compose.material.Divider
+import androidx.compose.material.Icon
+import androidx.compose.material.IconButton
+import androidx.compose.material.Text
 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.LaunchedEffect
+import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.livedata.observeAsState
-import androidx.compose.ui.*
+import androidx.compose.runtime.mutableIntStateOf
-import androidx.compose.ui.draw.*
+import androidx.compose.runtime.mutableStateOf
-import androidx.compose.ui.graphics.*
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.scale
+import androidx.compose.ui.graphics.Color
 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.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
 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.data.models.Comment
-import com.example.dtf.utils.ScreenPaths
+import com.example.dtf.ui.utils.ScreenPaths
-import com.example.dtf.viewmodels.PostViewModel
+import com.example.dtf.ui.viewmodels.PostViewModel
-import com.example.dtf.widgets.MyTextField
+import com.example.dtf.ui.widgets.MyTextField
 
 @Composable
 fun PostScreen(postId: Int, navController: NavHostController) {

app/src/main/java/com/example/dtf/ui/screens/PostsScreen.kt

@@ -1,31 +1,49 @@
-package com.example.dtf.screens
+package com.example.dtf.ui.screens
 
-import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.background
-import androidx.compose.foundation.*
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.heightIn
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.LazyRow
-import androidx.compose.material.*
+import androidx.compose.material.Icon
+import androidx.compose.material.Text
 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.runtime.LaunchedEffect
-import androidx.compose.ui.*
+import androidx.compose.runtime.MutableState
-import androidx.compose.ui.draw.*
+import androidx.compose.runtime.mutableIntStateOf
-import androidx.compose.ui.geometry.*
+import androidx.compose.runtime.mutableStateOf
-import androidx.compose.ui.graphics.*
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.drawBehind
+import androidx.compose.ui.geometry.Offset
+import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.text.style.TextOverflow
-import androidx.compose.ui.unit.*
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
 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.data.models.Category
-import com.example.dtf.models.Post
+import com.example.dtf.data.models.Post
-import com.example.dtf.utils.ScreenPaths
+import com.example.dtf.ui.utils.ScreenPaths
-import com.example.dtf.viewmodels.PostsViewModel
+import com.example.dtf.ui.viewmodels.PostsViewModel
 import kotlinx.coroutines.flow.Flow
 
 @Composable

app/src/main/java/com/example/dtf/ui/screens/ProfileScreen.kt

@@ -1,20 +1,33 @@
-package com.example.dtf.screens
+package com.example.dtf.ui.screens
 
-import androidx.compose.foundation.*
+import androidx.compose.foundation.background
-import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material.*
+import androidx.compose.material.Card
+import androidx.compose.material.Divider
+import androidx.compose.material.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.livedata.observeAsState
-import androidx.compose.ui.*
+import androidx.compose.ui.Alignment
-import androidx.compose.ui.graphics.*
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalContext
-import androidx.compose.ui.unit.*
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
 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.ui.utils.ScreenPaths
-import com.example.dtf.viewmodels.ProfileViewModel
+import com.example.dtf.ui.viewmodels.ProfileViewModel
 
 @Composable
 fun ProfileScreen(navController: NavHostController) {

app/src/main/java/com/example/dtf/ui/screens/RegisterScreen.kt

@@ -1,11 +1,15 @@
-package com.example.dtf.screens
+package com.example.dtf.ui.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.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.heightIn
+import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.AlertDialog
 import androidx.compose.material.Button
@@ -16,22 +20,19 @@ 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.Alignment
+import androidx.compose.ui.Modifier
 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.ui.utils.ScreenPaths
-import com.example.dtf.viewmodels.RegisterViewModel
+import com.example.dtf.ui.viewmodels.RegisterViewModel
-import com.example.dtf.widgets.MyTextField
+import com.example.dtf.ui.widgets.MyTextField
 
 @Composable
 fun RegisterScreen(navController: NavHostController) {

app/src/main/java/com/example/dtf/ui/screens/TopPostsScreen.kt

@@ -0,0 +1,279 @@
+package com.example.dtf.ui.screens
+
+import android.os.Build
+import androidx.annotation.RequiresApi
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.heightIn
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyRow
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material.Icon
+import androidx.compose.material.Text
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.ThumbUp
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.MutableState
+import androidx.compose.runtime.livedata.observeAsState
+import androidx.compose.runtime.mutableIntStateOf
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.drawBehind
+import androidx.compose.ui.geometry.Offset
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.navigation.NavHostController
+import androidx.paging.compose.LazyPagingItems
+import androidx.paging.compose.collectAsLazyPagingItems
+import androidx.paging.compose.itemKey
+import com.example.dtf.PreferencesManager
+import com.example.dtf.data.models.Category
+import com.example.dtf.data.models.Post
+import com.example.dtf.ui.utils.ScreenPaths
+import com.example.dtf.ui.viewmodels.TopPostsViewModel
+import java.time.LocalDate
+import java.time.Period
+
+
+@RequiresApi(Build.VERSION_CODES.O)
+@Composable
+fun TopPostsScreen(navController: NavHostController) {
+    val viewModel = hiltViewModel<TopPostsViewModel>()
+
+    val currentCategory = remember { mutableStateOf<Category?>(null) }
+    val categories = viewModel.getCategoriesListUiState().collectAsLazyPagingItems()
+    val dateFrom = remember { mutableStateOf(LocalDate.now()) }
+
+    Column(
+        modifier = Modifier
+            .fillMaxSize()
+            .verticalScroll(rememberScrollState()),
+        verticalArrangement = Arrangement.spacedBy(15.dp),
+        horizontalAlignment = Alignment.CenterHorizontally,
+    ) {
+        Spacer(modifier = Modifier.height(15.dp))
+        Text(
+            text = "Топ 10 новостей",
+            fontSize = 36.sp
+        )
+        DateSelect(viewModel, dateFrom, currentCategory)
+        Categories(viewModel, currentCategory, categories, dateFrom)
+        Posts(viewModel, navController)
+        Spacer(modifier = Modifier.height(60.dp))
+    }
+}
+
+@RequiresApi(Build.VERSION_CODES.O)
+@Composable
+fun DateSelect(
+    viewModel: TopPostsViewModel,
+    dateFrom: MutableState<LocalDate>,
+    currentCategory: MutableState<Category?>
+    ) {
+    val week = Pair(LocalDate.now() - Period.ofWeeks(1), "Неделя")
+    val month = Pair(LocalDate.now() - Period.ofMonths(1), "Месяц")
+    val year = Pair(LocalDate.now() - Period.ofYears(1), "Год")
+
+    dateFrom.value = week.first
+
+    Row(
+        modifier = Modifier
+            .fillMaxWidth()
+            .fillMaxHeight(0.1f)
+            .background(Color.White),
+        horizontalArrangement = Arrangement.spacedBy(25.dp),
+        verticalAlignment = Alignment.CenterVertically
+    ) {
+        Spacer(modifier = Modifier)
+        listOf(week, month, year).forEach { (date, name) ->
+            Text(
+                modifier = Modifier
+                    .clickable {
+                        dateFrom.value = date
+                        if (currentCategory.value != null) {
+                            viewModel.retrievePosts(currentCategory.value!!.id!!, dateFrom.value, LocalDate.now())
+                        }
+                    }
+                    .drawBehind {
+                        if (dateFrom.value == date) {
+                            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 = name,
+                fontSize = 22.sp
+            )
+        }
+    }
+}
+
+@RequiresApi(Build.VERSION_CODES.O)
+@Composable
+fun Categories(
+    viewModel: TopPostsViewModel,
+    currentCategory: MutableState<Category?>,
+    categories: LazyPagingItems<Category>,
+    dateFrom: MutableState<LocalDate>) {
+    LazyRow(
+        modifier = Modifier
+            .fillMaxWidth()
+            .fillMaxHeight(0.1f)
+            .background(Color.White),
+        horizontalArrangement = Arrangement.spacedBy(25.dp),
+        verticalAlignment = Alignment.CenterVertically
+    ) {
+        item {
+            Spacer(modifier = Modifier)
+        }
+        items(
+            count = categories.itemCount,
+            key = categories.itemKey()
+        ) {
+            if (currentCategory.value == null) {
+                currentCategory.value = categories[0]
+                viewModel.retrievePosts(currentCategory.value!!.id!!, dateFrom.value, LocalDate.now())
+            }
+            Text(
+                modifier = Modifier
+                    .clickable {
+                        currentCategory.value = categories[it]!!
+                        viewModel.retrievePosts(
+                            currentCategory.value!!.id!!,
+                            dateFrom.value,
+                            LocalDate.now()
+                        )
+                    }
+                    .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
+fun Posts(viewModel: TopPostsViewModel, navController: NavHostController) {
+    Column(
+        modifier = Modifier.fillMaxSize(),
+        verticalArrangement = Arrangement.spacedBy(10.dp)
+    ) {
+        for (post in viewModel.posts.observeAsState(listOf()).value) {
+            Post(viewModel, navController, post)
+        }
+    }
+}
+
+@Composable
+fun Post(viewModel: TopPostsViewModel, navController: NavHostController, post: Post) {
+    val sharedPref = PreferencesManager(LocalContext.current)
+
+    val likes = remember { mutableIntStateOf(post.likes) }
+    val isLiked = remember { mutableStateOf(false) }
+
+    LaunchedEffect(Unit) {
+        viewModel.isLiked(sharedPref, post.id!!).collect {
+            isLiked.value = it
+        }
+    }
+
+    Column(
+        modifier = Modifier
+            .heightIn(min = 250.dp, max = 300.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}
+                )
+            }
+        }
+    }
+}

app/src/main/java/com/example/dtf/ui/utils/ScreenPaths.kt

@@ -1,4 +1,4 @@
-package com.example.dtf.utils
+package com.example.dtf.ui.utils
 
 sealed class ScreenPaths (val route: String){
     object Auth: ScreenPaths("auth")
@@ -6,6 +6,7 @@ sealed class ScreenPaths (val route: String){
     object Register: ScreenPaths("auth/register")
     object Post: ScreenPaths("posts/{post}")
     object Posts: ScreenPaths("posts")
+    object TopPosts: ScreenPaths("posts/top")
     object NewPost: ScreenPaths("posts/new")
     object EditPost: ScreenPaths("posts/{post}/edit")
     object Profile: ScreenPaths("profile")

app/src/main/java/com/example/dtf/ui/viewmodels/EditPostViewModel.kt

@@ -1,12 +1,12 @@
-package com.example.dtf.viewmodels
+package com.example.dtf.ui.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.data.models.Post
-import com.example.dtf.repositories.IPostRepository
+import com.example.dtf.data.repositories.IPostRepository
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.launch
 import javax.inject.Inject

app/src/main/java/com/example/dtf/ui/viewmodels/LoginViewModel.kt

@@ -1,13 +1,12 @@
-package com.example.dtf.viewmodels
+package com.example.dtf.ui.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.data.api.ServerService
-import com.example.dtf.dto.Credentials
+import com.example.dtf.data.dto.Credentials
-import com.example.dtf.repositories.IUserRepository
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.launch
 import javax.inject.Inject

app/src/main/java/com/example/dtf/ui/viewmodels/NewPostViewModel.kt

@@ -1,13 +1,13 @@
-package com.example.dtf.viewmodels
+package com.example.dtf.ui.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.data.models.Post
-import com.example.dtf.repositories.ICategoryRepository
+import com.example.dtf.data.repositories.ICategoryRepository
-import com.example.dtf.repositories.IPostRepository
+import com.example.dtf.data.repositories.IPostRepository
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.launch
 import java.util.Date

app/src/main/java/com/example/dtf/ui/viewmodels/PostViewModel.kt

@@ -1,4 +1,4 @@
-package com.example.dtf.viewmodels
+package com.example.dtf.ui.viewmodels
 
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
@@ -6,13 +6,13 @@ 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.data.models.Comment
-import com.example.dtf.models.Like
+import com.example.dtf.data.models.Like
-import com.example.dtf.models.Post
+import com.example.dtf.data.models.Post
-import com.example.dtf.repositories.ICommentRepository
+import com.example.dtf.data.repositories.ICommentRepository
-import com.example.dtf.repositories.ILikeRepository
+import com.example.dtf.data.repositories.ILikeRepository
-import com.example.dtf.repositories.IPostRepository
+import com.example.dtf.data.repositories.IPostRepository
-import com.example.dtf.repositories.IUserRepository
+import com.example.dtf.data.repositories.IUserRepository
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.launch

app/src/main/java/com/example/dtf/ui/viewmodels/PostsViewModel.kt

@@ -1,12 +1,12 @@
-package com.example.dtf.viewmodels
+package com.example.dtf.ui.viewmodels
 
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import com.example.dtf.PreferencesManager
-import com.example.dtf.models.Like
+import com.example.dtf.data.models.Like
-import com.example.dtf.repositories.ICategoryRepository
+import com.example.dtf.data.repositories.ICategoryRepository
-import com.example.dtf.repositories.ILikeRepository
+import com.example.dtf.data.repositories.ILikeRepository
-import com.example.dtf.repositories.IPostRepository
+import com.example.dtf.data.repositories.IPostRepository
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.launch
 import javax.inject.Inject
@@ -47,7 +47,5 @@ class PostsViewModel @Inject constructor(
 
     fun getCategoriesListUiState() = categoryRepository.getAll()
 
-    fun getInitialCategory() = categoryRepository.getFirst()
-
     fun getPostsListUiState(categoryId: Int) = postRepository.getByCategory(categoryId)
 }

app/src/main/java/com/example/dtf/ui/viewmodels/ProfileViewModel.kt

@@ -1,14 +1,12 @@
-package com.example.dtf.viewmodels
+package com.example.dtf.ui.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.data.models.User
-import com.example.dtf.repositories.offline.OfflineUserRepository
+import com.example.dtf.data.repositories.offline.OfflineUserRepository
 import dagger.hilt.android.lifecycle.HiltViewModel
-import kotlinx.coroutines.launch
 import javax.inject.Inject
 
 @HiltViewModel

app/src/main/java/com/example/dtf/ui/viewmodels/RegisterViewModel.kt

@@ -1,12 +1,11 @@
-package com.example.dtf.viewmodels
+package com.example.dtf.ui.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.data.api.ServerService
-import com.example.dtf.dto.Credentials
+import com.example.dtf.data.dto.Credentials
-import com.example.dtf.repositories.offline.OfflineUserRepository
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.launch
 import javax.inject.Inject

app/src/main/java/com/example/dtf/ui/viewmodels/TopPostsViewModel.kt

@@ -0,0 +1,63 @@
+package com.example.dtf.ui.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.data.models.Like
+import com.example.dtf.data.models.Post
+import com.example.dtf.data.repositories.ICategoryRepository
+import com.example.dtf.data.repositories.ILikeRepository
+import com.example.dtf.data.repositories.IPostRepository
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.launch
+import java.time.LocalDate
+import javax.inject.Inject
+
+@HiltViewModel
+class TopPostsViewModel @Inject constructor(
+    private val postRepository: IPostRepository,
+    private val categoryRepository: ICategoryRepository,
+    private val likeRepository: ILikeRepository
+) : ViewModel() {
+    private val _posts = MutableLiveData<List<Post>>()
+    val posts: LiveData<List<Post>>
+        get() = _posts
+
+    fun getCategoriesListUiState() = categoryRepository.getAll()
+
+    fun retrievePosts(categoryId: Int, fromDate: LocalDate, toDate: LocalDate) {
+        viewModelScope.launch {
+            postRepository.getTopTen(categoryId, fromDate, toDate).collect {
+                _posts.value = it
+            }
+        }
+    }
+
+    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
+    )
+}

app/src/main/java/com/example/dtf/ui/widgets/BottomNavBar.kt

@@ -1,9 +1,5 @@
-package com.example.dtf.widgets
+package com.example.dtf.ui.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
@@ -14,27 +10,17 @@ 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.material.icons.filled.Star
 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.NavController
 import androidx.navigation.compose.currentBackStackEntryAsState
 import com.example.dtf.PreferencesManager
-import com.example.dtf.db.AppDatabase
+import com.example.dtf.ui.utils.ScreenPaths
-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) {
@@ -49,6 +35,7 @@ fun BottomNavBar(navController: NavController) {
         val currentRoute = navBackStackEntry?.destination?.route
         listOfNotNull(
             Triple(ScreenPaths.Posts.route, Icons.Default.Home, "Новости"),
+            Triple(ScreenPaths.TopPosts.route, Icons.Default.Star, "Топ"),
             if (sharedPref.getData("isModerator", "false").toBooleanStrict()) {
                 Triple(ScreenPaths.NewPost.route, Icons.Default.Edit, "Создать")
             } else { null },

app/src/main/java/com/example/dtf/ui/widgets/MyTextField.kt

@@ -1,4 +1,4 @@
-package com.example.dtf.widgets
+package com.example.dtf.ui.widgets
 
 import androidx.compose.foundation.background
 import androidx.compose.foundation.border