"""维护 SQLite settings 表：删除废弃键并写入推荐验证参数。

请在项目根目录执行（与 start.bat 同级的上一级）：
  python script/settings_maintain.py

改库后需重启应用或在 WebUI 保存一次设置，WorkerPool / Validator 才会重载并发与超时。
"""
import asyncio
import os
import sys

_ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
if _ROOT not in sys.path:
    sys.path.insert(0, _ROOT)

_SETTINGS_MAINTENANCE_SQL = """
DELETE FROM settings WHERE key = 'crawl_timeout';
DELETE FROM settings WHERE key = 'max_retries';
INSERT INTO settings (key, value, updated_at) VALUES ('validation_timeout', '6', CURRENT_TIMESTAMP)
ON CONFLICT(key) DO UPDATE SET value = excluded.value, updated_at = CURRENT_TIMESTAMP;
INSERT INTO settings (key, value, updated_at) VALUES ('default_concurrency', '120', CURRENT_TIMESTAMP)
ON CONFLICT(key) DO UPDATE SET value = excluded.value, updated_at = CURRENT_TIMESTAMP;
"""


async def _run() -> None:
    import aiosqlite

    from app.core.db import DB_PATH, ensure_db_dir

    ensure_db_dir()
    if not os.path.isfile(DB_PATH):
        print(f"数据库不存在，跳过: {DB_PATH}")
        return

    async with aiosqlite.connect(DB_PATH) as db:
        await db.executescript(_SETTINGS_MAINTENANCE_SQL)
        await db.commit()
    print(f"已执行设置维护: {DB_PATH}")
    print("请重启应用或在 WebUI 保存一次设置以使并发/超时生效。")


if __name__ == "__main__":
    asyncio.run(_run())