新增潜水排行

db/contacts_db.py

@@ -712,3 +712,30 @@ class ContactsDBOperator(BaseDBOperator):
         except Exception as e:
             self.LOG.error(f"更新群{chatroom_id}成员{wxid}活跃时间失败: {e}")
             return False
+
+    def get_inactive_members_rank(self, chatroom_id: str, days: int = 60, limit: int = 10) -> List[Dict]:
+        try:
+            sql = """
+            SELECT
+                wxid,
+                COALESCE(NULLIF(display_name,''), nick_name, wxid) AS nick_name,
+                latest_active_time,
+                CASE
+                    WHEN latest_active_time IS NULL THEN 999999
+                    ELSE TIMESTAMPDIFF(DAY, latest_active_time, NOW())
+                END AS inactivity_days
+            FROM t_chatroom_member
+            WHERE chatroom_id = %s
+              AND (latest_active_time IS NULL OR latest_active_time <= DATE_SUB(NOW(), INTERVAL %s DAY))
+            ORDER BY inactivity_days DESC
+            LIMIT %s
+            """
+            results = self.execute_query(sql, (chatroom_id, days, limit))
+            for row in results:
+                dt = row.get("latest_active_time")
+                if isinstance(dt, datetime):
+                    row["latest_active_time"] = dt.strftime("%Y-%m-%d %H:%M:%S")
+            return results
+        except Exception as e:
+            self.LOG.error(f"获取群{chatroom_id}潜水排行失败: {e}")
+            return []