feat:添加 Group 类型

astrbot/core/platform/astrbot_message.py

@@ -1,5 +1,5 @@
 import time
-from typing import List
+from typing import List, Dict, Any
 from dataclasses import dataclass
 from astrbot.core.message.components import BaseMessageComponent
 from .message_type import MessageType
@@ -10,6 +10,52 @@ class MessageMember:
     user_id: str  # 发送者id
     nickname: str = None
 
+    def __str__(self):
+        # 使用 f-string 来构建返回的字符串表示形式
+        return (f"User ID: {self.user_id}\n"
+                f"Nickname: {self.nickname if self.nickname else 'N/A'}")
+
+@dataclass
+class Group:
+    group_id: str
+    group_name: str = None
+
+    # 群头像
+    group_avatar: str = None
+
+    # 群主id
+    group_owner: str = None
+
+    # 群管理员id
+    group_admin: str = None
+
+    # 群成员
+    members: List[MessageMember] = None
+
+    def __str__(self):
+        # 使用 f-string 来构建返回的字符串表示形式
+        return (f"Group ID: {self.group_id}\n"
+                f"Name: {self.group_name if self.group_name else 'N/A'}\n"
+                f"Avatar: {self.group_avatar if self.group_avatar else 'N/A'}\n"
+                f"Owner ID: {self.group_owner if self.group_owner else 'N/A'}\n"
+                f"Admin ID: {self.group_admin if self.group_admin else 'N/A'}")
+
+    @classmethod
+    def from_dict(cls, data: Dict[str, Any]) -> "Group":
+        # 提取members信息并转换为MessageMember对象
+        members = [
+            MessageMember(user_id=member["wxid"], nickname=member["nickName"])
+            for member in data.get("memberList", [])
+        ]
+
+        return cls(
+            group_id=data["chatroomId"],
+            group_name=data.get("nickName"),
+            group_avatar=data.get("smallHeadImgUrl"),
+            group_owner=data.get("chatRoomOwner"),
+            members=members,
+        )
+
 
 class AstrBotMessage:
     """