v0.5.0

重构了消息发送系统，口牙

src/common/database.py

@@ -24,4 +24,25 @@ class Database:
     def get_instance(cls) -> "Database":
         if cls._instance is None:
             raise RuntimeError("Database not initialized")
-        return cls._instance
+        return cls._instance
+
+
+    #测试用
+    
+    def get_random_group_messages(self, group_id: str, limit: int = 5):
+        # 先随机获取一条消息
+        random_message = list(self.db.messages.aggregate([
+            {"$match": {"group_id": group_id}},
+            {"$sample": {"size": 1}}
+        ]))[0]
+        
+        # 获取该消息之后的消息
+        subsequent_messages = list(self.db.messages.find({
+            "group_id": group_id,
+            "time": {"$gt": random_message["time"]}
+        }).sort("time", 1).limit(limit))
+        
+        # 将随机消息和后续消息合并
+        messages = [random_message] + subsequent_messages
+        
+        return messages