Приложение

client-mobile/chats/domain/model/ChatModels.kt

@@ -0,0 +1,10 @@
+package chats.domain.model
+
+data class Chat(
+    val id: String,
+    val type: String,
+    val name: String,
+    val avatar: String?,
+    val unreadCount: Int,
+    val lastMessage: Message?
+)

client-mobile/chats/domain/model/Message.kt

@@ -0,0 +1,21 @@
+package chats.domain.model
+
+data class Message(
+    val id: String,
+    val chatId: String,
+    val senderId: String,
+    val senderName: String,
+    val content: String?,
+    val sequenceId: Int,
+    val createdAt: String,
+    val media: List<String> = emptyList(),
+    val mediaUrl: String? = null,
+    val mediaType: MediaType = MediaType.TEXT,
+    val reactions: Map<String, Int> = emptyMap(),
+    val isRead: Boolean = false,
+    val replyTo: Message? = null
+)
+
+enum class MediaType {
+    TEXT, IMAGE, VIDEO, AUDIO, FILE, STORY_REPLY
+}

client-mobile/chats/domain/repository/ChatRepository.kt

@@ -0,0 +1,13 @@
+package chats.domain.repository
+
+import chats.domain.model.Chat
+import chats.domain.model.Message
+
+interface ChatRepository {
+    suspend fun getChats(): List<Chat>
+    suspend fun getMessages(chatId: String): List<Message>
+    suspend fun sendMessage(chatId: String, content: String): Message
+    suspend fun addReaction(messageId: String, emoji: String)
+    suspend fun sendTypingStatus(chatId: String)
+    suspend fun markMessagesAsRead(chatId: String, lastMessageId: String)
+}

client-mobile/chats/domain/usecase/UploadMediaUseCase.kt

@@ -0,0 +1,24 @@
+package chats.domain.usecase
+
+import chats.data.remote.api.ChatApi
+import chats.data.remote.api.FileUploadResponse
+import okhttp3.MediaType.Companion.toMediaTypeOrNull
+import okhttp3.MultipartBody
+import okhttp3.RequestBody.Companion.asRequestBody
+import java.io.File
+import javax.inject.Inject
+
+class UploadMediaUseCase @Inject constructor(
+    private val api: ChatApi
+) {
+    suspend operator fun invoke(file: File): Result<FileUploadResponse> {
+        return try {
+            val requestFile = file.asRequestBody("image/*".toMediaTypeOrNull())
+            val body = MultipartBody.Part.createFormData("file", file.name, requestFile)
+            val response = api.uploadFile(body)
+            Result.success(response)
+        } catch (e: Exception) {
+            Result.failure(e)
+        }
+    }
+}