Optimize scheduler status lookups

db/accounts.py

@@ -140,6 +140,36 @@ def get_account_status(account_id):
         return cursor.fetchone()
 
 
+def get_account_status_batch(account_ids):
+    """批量获取账号状态信息"""
+    account_ids = [str(account_id) for account_id in (account_ids or []) if account_id]
+    if not account_ids:
+        return {}
+
+    results = {}
+    chunk_size = 900  # 避免触发 SQLite 绑定参数上限
+    with db_pool.get_db() as conn:
+        cursor = conn.cursor()
+        for idx in range(0, len(account_ids), chunk_size):
+            chunk = account_ids[idx : idx + chunk_size]
+            placeholders = ",".join("?" for _ in chunk)
+            cursor.execute(
+                f"""
+                SELECT id, status, login_fail_count, last_login_error
+                FROM accounts
+                WHERE id IN ({placeholders})
+                """,
+                chunk,
+            )
+            for row in cursor.fetchall():
+                row_dict = dict(row)
+                account_id = str(row_dict.pop("id", ""))
+                if account_id:
+                    results[account_id] = row_dict
+
+    return results
+
+
 def delete_user_accounts(user_id):
     """删除用户的所有账号"""
     with db_pool.get_db() as conn:
@@ -147,4 +177,3 @@ def delete_user_accounts(user_id):
         cursor.execute("DELETE FROM accounts WHERE user_id = ?", (user_id,))
         conn.commit()
         return cursor.rowcount
-