feat(message_summary): add group overview stats section

plugins/message_summary/main.py

@@ -160,6 +160,7 @@ class MessageSummaryPlugin(MessagePluginInterface):
                 return False, None
             period_start, period_end = self._resolve_manual_summary_range(custom_date)
             message_count = self.message_storage.count_messages_by_date_range(group_id, period_start, period_end)
+            message_stats = self.message_storage.get_message_stats_by_date_range(group_id, period_start, period_end)
             if message_count < 100:
                 await self.bot.send_text_message(
                     group_id,
@@ -191,6 +192,7 @@ class MessageSummaryPlugin(MessagePluginInterface):
                 period_start=period_start,
                 period_end=period_end,
                 message_count=message_count,
+                message_stats=message_stats,
             )
             if res:
                 return True, "异步总结已启动"
@@ -210,11 +212,12 @@ class MessageSummaryPlugin(MessagePluginInterface):
         period_start: Optional[datetime] = None,
         period_end: Optional[datetime] = None,
         message_count: Optional[int] = None,
+        message_stats: Optional[Dict[str, int]] = None,
     ):
         """异步生成并发送总结"""
         try:
             # 生成总结
-            summary, image_path = await self._generate_summary(chat_content, group_name)
+            summary, image_path = await self._generate_summary(chat_content, group_name, message_stats=message_stats)
 
             if image_path:
                 # 图片生成成功，发送图片
@@ -449,7 +452,12 @@ class MessageSummaryPlugin(MessagePluginInterface):
             self.LOG.error(f"群总结入库失败: group_id={group_id}, period_key={summary_record['period_key']}")
         return saved
 
-    async def _generate_summary(self, chat_content: str, group_name: str) -> Tuple[str, Optional[str]]:
+    async def _generate_summary(
+        self,
+        chat_content: str,
+        group_name: str,
+        message_stats: Optional[Dict[str, int]] = None,
+    ) -> Tuple[str, Optional[str]]:
         """生成总结"""
         content_compress = chat_content
         try:
@@ -483,6 +491,7 @@ class MessageSummaryPlugin(MessagePluginInterface):
                 answer = self._clean_summary_output(response.get("text", ""))
                 metadata = {"usage": response.get("usage", {}) or {}}
                 spath = ""
+                answer = self._prepend_stats_section(answer, message_stats or {})
                 answer = self._append_usage_info(answer, metadata)
 
                 if answer and len(answer.strip()) > 0:
@@ -513,6 +522,25 @@ class MessageSummaryPlugin(MessagePluginInterface):
 
         return "生成总结时出错", None
 
+    @staticmethod
+    def _prepend_stats_section(summary: str, message_stats: Dict[str, int]) -> str:
+        stats = message_stats or {}
+        if not summary or not summary.strip():
+            return summary
+
+        section_lines = [
+            "## 群概览",
+            f"- 总统计条目数：{int(stats.get('total_count') or 0)}",
+            f"- 参与人数：{int(stats.get('participant_count') or 0)}",
+            f"- 文本消息：{int(stats.get('text_count') or 0)}",
+            f"- 图片消息：{int(stats.get('image_count') or 0)}",
+            f"- 视频消息：{int(stats.get('video_count') or 0)}",
+            f"- 链接消息：{int(stats.get('link_count') or 0)}",
+            f"- 表情消息：{int(stats.get('emoji_count') or 0)}",
+        ]
+        section = "\n".join(section_lines)
+        return f"{section}\n\n{summary.strip()}"
+
     async def daily_summary_job(self):
         """定时任务：每天早上9点总结昨天的聊天信息"""
         try:
@@ -561,6 +589,11 @@ class MessageSummaryPlugin(MessagePluginInterface):
                         continue
 
                     self.LOG.info(f"群 {group_id} 昨天有 {message_count} 条消息，开始获取内容")
+                    message_stats = self.message_storage.get_message_stats_by_date_range(
+                        group_id,
+                        yesterday_start,
+                        yesterday_end,
+                    )
 
                     # 获取群成员信息
                     group_members = ContactManager.get_instance().get_group_members(group_id)
@@ -592,7 +625,11 @@ class MessageSummaryPlugin(MessagePluginInterface):
                     )
 
                     # 生成总结
-                    summary, image_path = await self._generate_summary(chat_content, group_name)
+                    summary, image_path = await self._generate_summary(
+                        chat_content,
+                        group_name,
+                        message_stats=message_stats,
+                    )
 
                     if image_path:
                         # 图片生成成功，发送图片