新增聊天消息提醒

app/src/main/java/com/aiosman/riderpro/ChatState.kt

@@ -0,0 +1,40 @@
+package com.aiosman.riderpro
+
+import com.aiosman.riderpro.data.ChatService
+import com.aiosman.riderpro.data.ChatServiceImpl
+import com.aiosman.riderpro.entity.ChatNotification
+
+/**
+ * 保存一些关于聊天的状态
+ */
+object ChatState {
+    val chatService: ChatService = ChatServiceImpl()
+    var chatNotificationList = mutableListOf<ChatNotification>()
+    suspend fun getStrategyByTargetTrtcId(targetTrtcId: String): ChatNotification? {
+        // 先从缓存中查找
+        if (chatNotificationList.isNotEmpty()) {
+            chatNotificationList.forEach {
+                if (it.targetTrtcId == targetTrtcId) {
+                    return it
+                }
+            }
+        }
+        // 缓存中没有再从网络获取
+        chatService.getChatNotifications(targetTrtcId)?.let {
+            chatNotificationList.add(it)
+            return it
+        }
+        // 存在未设置策略的情况
+        return null
+    }
+
+    suspend fun updateChatNotification(targetUserId: Int, strategy: String): ChatNotification {
+        val updatedData = chatService.updateChatNotification(targetUserId, strategy)
+        chatNotificationList = chatNotificationList.filter {
+            it.targetUserId != targetUserId
+        }.toMutableList().apply {
+            add(updatedData)
+        }
+        return updatedData
+    }
+}