Заготовка
This commit is contained in:
Халимов Рустам
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package chats.data.local.dao
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import androidx.room.*
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import chats.data.local.database.ChatEntity
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import kotlinx.coroutines.flow.Flow
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/**
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* DAO для операций с чатами в Room Database
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*/
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@Dao
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interface ChatDao {
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@Query("SELECT * FROM chats ORDER BY updatedAtMillis DESC")
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fun getAllChats(): Flow<List<ChatEntity>>
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@Query("SELECT * FROM chats WHERE remoteId = :remoteId LIMIT 1")
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suspend fun getChatByRemoteId(remoteId: String): ChatEntity?
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@Query("SELECT * FROM chats WHERE localId = :localId LIMIT 1")
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suspend fun getChatByLocalId(localId: String): ChatEntity?
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@Insert(onConflict = OnConflictStrategy.REPLACE)
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suspend fun insertChat(chat: ChatEntity)
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@Insert(onConflict = OnConflictStrategy.REPLACE)
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suspend fun insertChats(chats: List<ChatEntity>)
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@Update
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suspend fun updateChat(chat: ChatEntity)
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@Query("UPDATE chats SET lastMessageText = :lastMessageText, lastMessageTimestamp = :timestamp WHERE remoteId = :chatId")
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suspend fun updateLastMessage(chatId: String, lastMessageText: String?, timestamp: String?)
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@Query("UPDATE chats SET unreadCount = :count WHERE remoteId = :chatId")
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suspend fun updateUnreadCount(chatId: String, count: Int)
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@Delete
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suspend fun deleteChat(chat: ChatEntity)
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@Query("DELETE FROM chats WHERE remoteId = :remoteId")
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suspend fun deleteChatByRemoteId(remoteId: String)
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@Query("DELETE FROM chats")
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suspend fun deleteAllChats()
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}
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@@ -0,0 +1,70 @@
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package chats.data.local.dao
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import androidx.room.*
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import chats.data.local.database.MessageEntity
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import chats.domain.model.MessageStatus
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import kotlinx.coroutines.flow.Flow
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/**
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* DAO для операций с сообщениями в Room Database
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*/
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@Dao
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interface MessageDao {
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@Query("SELECT * FROM messages WHERE chatId = :chatId ORDER BY sequenceId ASC")
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fun getMessagesByChatId(chatId: String): Flow<List<MessageEntity>>
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@Query("SELECT * FROM messages WHERE chatId = :chatId AND sequenceId > :afterSequenceId ORDER BY sequenceId ASC LIMIT :limit")
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suspend fun getMessagesAfter(chatId: String, afterSequenceId: Long, limit: Int): List<MessageEntity>
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@Query("SELECT * FROM messages WHERE chatId = :chatId AND sequenceId < :beforeSequenceId ORDER BY sequenceId DESC LIMIT :limit")
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suspend fun getMessagesBefore(chatId: String, beforeSequenceId: Long, limit: Int): List<MessageEntity>
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@Query("SELECT * FROM messages WHERE localId = :localId")
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suspend fun getMessageByLocalId(localId: String): MessageEntity?
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@Query("SELECT * FROM messages WHERE serverId = :serverId")
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suspend fun getMessageByServerId(serverId: String): MessageEntity?
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@Query("SELECT * FROM messages WHERE status IN (:statuses) AND chatId = :chatId")
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suspend fun getMessagesByStatus(chatId: String, statuses: List<MessageStatus>): List<MessageEntity>
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@Query("SELECT * FROM messages WHERE status = :status")
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fun getMessagesByStatusFlow(status: MessageStatus): Flow<List<MessageEntity>>
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@Query("SELECT * FROM messages WHERE status IN (:statuses)")
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suspend fun getPendingMessages(statuses: List<MessageStatus>): List<MessageEntity>
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@Insert(onConflict = OnConflictStrategy.REPLACE)
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suspend fun insertMessage(message: MessageEntity)
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@Insert(onConflict = OnConflictStrategy.REPLACE)
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suspend fun insertMessages(messages: List<MessageEntity>)
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@Update
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suspend fun updateMessage(message: MessageEntity)
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@Delete
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suspend fun deleteMessage(message: MessageEntity)
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@Query("DELETE FROM messages WHERE localId = :localId")
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suspend fun deleteMessageByLocalId(localId: String)
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@Query("DELETE FROM messages WHERE chatId = :chatId")
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suspend fun deleteMessagesByChatId(chatId: String)
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@Query("UPDATE messages SET status = :status, updatedAtMillis = :updatedAtMillis WHERE localId = :localId")
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suspend fun updateMessageStatus(localId: String, status: MessageStatus, updatedAtMillis: Long)
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@Query("UPDATE messages SET serverId = :serverId, status = :status, updatedAtMillis = :updatedAtMillis WHERE localId = :localId")
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suspend fun updateMessageWithServerId(localId: String, serverId: String, status: MessageStatus, updatedAtMillis: Long)
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@Query("UPDATE messages SET status = :status, errorMessage = :errorMessage, retryCount = retryCount + 1, updatedAtMillis = :updatedAtMillis WHERE localId = :localId")
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suspend fun updateMessageError(localId: String, status: MessageStatus, errorMessage: String, updatedAtMillis: Long)
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@Query("SELECT COUNT(*) FROM messages WHERE chatId = :chatId AND status IN (:statuses)")
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suspend fun getUnsentCount(chatId: String, statuses: List<MessageStatus>): Int
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@Query("SELECT * FROM messages WHERE chatId = :chatId AND status = :status LIMIT 1")
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suspend fun getFirstMessageByStatus(chatId: String, status: MessageStatus): MessageEntity?
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}
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@@ -0,0 +1,36 @@
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package chats.data.local.dao
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import androidx.room.*
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import chats.data.local.database.UserProfileEntity
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import kotlinx.coroutines.flow.Flow
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/**
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* DAO для операций с профилями пользователей в Room Database
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*/
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@Dao
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interface UserProfileDao {
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@Query("SELECT * FROM user_profile WHERE userId = :userId LIMIT 1")
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suspend fun getUserById(userId: String): UserProfileEntity?
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@Query("SELECT * FROM user_profile WHERE userId = :userId")
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fun getUserByIdFlow(userId: String): Flow<UserProfileEntity?>
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@Query("SELECT * FROM user_profile")
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fun getAllUsers(): Flow<List<UserProfileEntity>>
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@Insert(onConflict = OnConflictStrategy.REPLACE)
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suspend fun insertUser(user: UserProfileEntity)
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@Insert(onConflict = OnConflictStrategy.REPLACE)
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suspend fun insertUsers(users: List<UserProfileEntity>)
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@Update
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suspend fun updateUser(user: UserProfileEntity)
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@Delete
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suspend fun deleteUser(user: UserProfileEntity)
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@Query("DELETE FROM user_profile WHERE userId = :userId")
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suspend fun deleteUserById(userId: String)
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}
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@@ -0,0 +1,33 @@
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package chats.data.local.database
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import androidx.room.Database
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import androidx.room.RoomDatabase
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import androidx.room.TypeConverters
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import chats.data.local.dao.ChatDao
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import chats.data.local.dao.MessageDao
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import chats.data.local.dao.UserProfileDao
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/**
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* Room Database для локального хранения данных мессенджера
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* Реализует паттерн Single Source of Truth
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*/
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@Database(
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entities = [
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MessageEntity::class,
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ChatEntity::class,
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UserProfileEntity::class
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],
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version = 1,
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exportSchema = false
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)
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@TypeConverters(MessageStatusConverter::class)
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abstract class AppDatabase : RoomDatabase() {
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abstract fun messageDao(): MessageDao
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abstract fun chatDao(): ChatDao
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abstract fun userProfileDao(): UserProfileDao
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companion object {
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const val DATABASE_NAME = "knot_messenger.db"
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}
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}
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@@ -0,0 +1,37 @@
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package chats.data.local.database
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import androidx.room.Entity
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import androidx.room.Index
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import androidx.room.PrimaryKey
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/**
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* Entity для хранения чатов в локальной БД Room
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*/
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@Entity(
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tableName = "chats",
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indices = [
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Index(value = ["remoteId"], unique = true)
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]
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)
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data class ChatEntity(
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@PrimaryKey(autoGenerate = false)
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val localId: String,
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val remoteId: String?, // ID с сервера
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val type: String, // PRIVATE, GROUP, CHANNEL
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val name: String,
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val avatar: String? = null,
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val unreadCount: Int = 0,
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val lastMessageId: String? = null,
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val lastMessageText: String? = null,
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val lastMessageTimestamp: String? = null,
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val updatedAtMillis: Long = System.currentTimeMillis()
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)
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@@ -0,0 +1,66 @@
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package chats.data.local.database
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import androidx.room.Entity
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import androidx.room.Index
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import androidx.room.PrimaryKey
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import chats.domain.model.MessageStatus
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/**
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* Entity для хранения сообщений в локальной БД Room
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* Используется для офлайн-режима и Single Source of Truth паттерна
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*/
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@Entity(
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tableName = "messages",
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indices = [
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Index(value = ["chatId", "sequenceId"]),
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Index(value = ["localId"], unique = true),
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Index(value = ["serverId"]),
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Index(value = ["status"])
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]
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)
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data class MessageEntity(
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@PrimaryKey(autoGenerate = false)
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val localId: String, // UUID генерируется на клиенте при создании
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val serverId: String?, // null для неотправленных сообщений
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val idempotencyKey: String, // UUID v4 для идемпотентности
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val chatId: String,
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val senderId: String,
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val senderName: String,
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val senderAvatar: String? = null,
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val content: String?,
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val sequenceId: Long,
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val createdAt: String, // ISO-8601 формат
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val mediaType: String,
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val mediaJson: String, // JSON список медиа (для Room)
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val reactionsJson: String = "{}", // JSON map эмодзи -> count
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val status: MessageStatus,
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val isPinned: Boolean = false,
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val isForwarded: Boolean = false,
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val forwardedFromName: String? = null,
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val replyToServerId: String? = null,
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val errorMessage: String? = null,
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val retryCount: Int = 0,
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val createdAtMillis: Long = 0,
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val updatedAtMillis: Long = 0
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)
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@@ -0,0 +1,17 @@
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package chats.data.local.database
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import androidx.room.TypeConverter
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import chats.domain.model.MessageStatus
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/**
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* Конвертеры для Room для работы с Enum и другими типами
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*/
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class MessageStatusConverter {
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@TypeConverter
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fun fromMessageStatus(status: MessageStatus): String = status.name
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@TypeConverter
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fun toMessageStatus(value: String): MessageStatus = runCatching {
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MessageStatus.valueOf(value)
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}.getOrDefault(MessageStatus.UNKNOWN)
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}
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@@ -0,0 +1,27 @@
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package chats.data.local.database
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import androidx.room.Entity
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import androidx.room.PrimaryKey
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/**
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* Entity для хранения профиля пользователя в локальной БД Room
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*/
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@Entity(tableName = "user_profile")
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data class UserProfileEntity(
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@PrimaryKey
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val userId: String,
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val username: String,
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val displayName: String,
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val avatarUrl: String? = null,
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val bio: String? = null,
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val isOnline: Boolean = false,
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val lastSeenMillis: Long = 0,
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val updatedAtMillis: Long = System.currentTimeMillis()
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)
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@@ -0,0 +1,34 @@
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package chats.data.local.mappers
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import chats.data.local.database.ChatEntity
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import chats.domain.model.Chat
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/**
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* Преобразует Domain Chat в Entity
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*/
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fun Chat.toEntity(): ChatEntity {
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return ChatEntity(
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localId = this.id.takeIf { it.isNotBlank() } ?: java.util.UUID.randomUUID().toString(),
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remoteId = this.id,
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type = this.type,
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name = this.name,
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avatar = this.avatar,
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unreadCount = this.unreadCount,
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lastMessageText = this.lastMessage?.content,
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lastMessageTimestamp = this.lastMessage?.createdAt
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)
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}
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/**
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* Преобразует Entity в Domain Chat
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*/
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fun ChatEntity.toDomain(): Chat {
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return Chat(
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id = this.remoteId ?: this.localId,
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type = this.type,
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name = this.name,
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avatar = this.avatar,
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unreadCount = this.unreadCount,
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lastMessage = null // lastMessage загружается отдельно
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)
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}
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@@ -0,0 +1,117 @@
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package chats.data.local.mappers
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import chats.data.local.database.MessageEntity
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import chats.domain.model.Message
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import chats.domain.model.MessageStatus
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import com.google.gson.Gson
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import com.google.gson.reflect.TypeToken
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private val gson = Gson()
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/**
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* Преобразует Domain Message в Entity для сохранения в Room
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*/
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fun Message.toEntity(status: MessageStatus = MessageStatus.SENT): MessageEntity {
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return MessageEntity(
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localId = this.id.takeIf { it.isNotBlank() } ?: java.util.UUID.randomUUID().toString(),
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serverId = if (status == MessageStatus.SENT || status == MessageStatus.DELIVERED || status == MessageStatus.READ) this.id else null,
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idempotencyKey = java.util.UUID.randomUUID().toString(),
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chatId = this.chatId,
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senderId = this.senderId,
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senderName = this.senderName,
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senderAvatar = this.senderAvatar,
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content = this.content,
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sequenceId = this.sequenceId.toLong(),
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createdAt = this.createdAt,
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mediaType = this.mediaType.name,
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mediaJson = gson.toJson(this.media),
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reactionsJson = gson.toJson(this.reactions),
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status = status,
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isPinned = this.isPinned,
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isForwarded = this.isForwarded,
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forwardedFromName = this.forwardedFromName,
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replyToServerId = this.replyTo?.id,
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createdAtMillis = parseTimestamp(this.createdAt),
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updatedAtMillis = System.currentTimeMillis()
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)
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}
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/**
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* Преобразует Entity в Domain Message для отображения в UI
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*/
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fun MessageEntity.toDomain(): Message {
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val mediaListType = object : TypeToken<List<chats.domain.model.Media>>() {}.type
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val reactionsMapType = object : TypeToken<Map<String, Int>>() {}.type
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return Message(
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id = this.serverId ?: this.localId,
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chatId = this.chatId,
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senderId = this.senderId,
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senderName = this.senderName,
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senderAvatar = this.senderAvatar,
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content = this.content,
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sequenceId = this.sequenceId.toInt(),
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createdAt = this.createdAt,
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media = try {
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gson.fromJson<List<chats.domain.model.Media>>(this.mediaJson, mediaListType) ?: emptyList()
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} catch (e: Exception) {
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emptyList()
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},
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mediaType = try {
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chats.domain.model.MediaType.valueOf(this.mediaType)
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} catch (e: Exception) {
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chats.domain.model.MediaType.TEXT
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},
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reactions = try {
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gson.fromJson<Map<String, Int>>(this.reactionsJson, reactionsMapType) ?: emptyMap()
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} catch (e: Exception) {
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emptyMap()
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},
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isRead = this.status == MessageStatus.READ,
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isPinned = this.isPinned,
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isForwarded = this.isForwarded,
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forwardedFromName = this.forwardedFromName,
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replyTo = null, // replyTo загружается отдельно если нужно
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status = this.status
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)
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}
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/**
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* Создает новое локальное сообщение со статусом PENDING
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*/
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fun createPendingMessageEntity(
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chatId: String,
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senderId: String,
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senderName: String,
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content: String?,
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mediaType: String = "TEXT",
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mediaJson: String = "[]",
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replyToId: String? = null
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): MessageEntity {
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val localId = java.util.UUID.randomUUID().toString()
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return MessageEntity(
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localId = localId,
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serverId = null,
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idempotencyKey = localId, // Используем localId как idempotency key
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chatId = chatId,
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senderId = senderId,
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senderName = senderName,
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content = content,
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sequenceId = -1, // Будет обновлено после получения с сервера
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createdAt = java.time.ZonedDateTime.now().toString(),
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mediaType = mediaType,
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mediaJson = mediaJson,
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status = MessageStatus.PENDING,
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replyToServerId = replyToId,
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createdAtMillis = System.currentTimeMillis(),
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updatedAtMillis = System.currentTimeMillis()
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||||
)
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}
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private fun parseTimestamp(createdAt: String): Long {
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return try {
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java.time.ZonedDateTime.parse(createdAt).toInstant().toEpochMilli()
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} catch (e: Exception) {
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System.currentTimeMillis()
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}
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||||
}
|
||||
Reference in New Issue
Block a user