"""数据访问层自检：MySQL 可达且表已建则跑真实 CRUD；否则 SKIP（exit 0）。"""
import asyncio

from sqlalchemy import text

from config.database.mysql import get_engine, get_session_factory
from repositories.sys_config import SysConfigRepo


async def _db_ok() -> bool:
    """MySQL 可达且 sys_config 表已建（schema.sql 已导入）才算就绪。"""
    try:
        async with get_engine().connect() as conn:
            await conn.execute(text("SELECT 1"))
        async with get_session_factory()() as session:
            await session.execute(text("SELECT 1 FROM sys_config LIMIT 1"))
        return True
    except Exception:
        return False


async def main():
    try:
        if not await _db_ok():
            print("SKIP: MySQL 不可达或 sys_config 未建表，CRUD 检查延后（先启动 MySQL 并导入 sql/schema.sql）")
            return
        async with get_session_factory()() as session:
            repo = SysConfigRepo(session)
            row = await repo.set_value("test.hnw", "3000000", "自检")
            assert row.config_key == "test.hnw"
            assert await repo.get_value("test.hnw") == "3000000"
            assert await repo.count() > 0
            rows = await repo.list(where=(repo.model.config_key == "test.hnw",))
            assert len(rows) == 1
            assert await repo.delete(rows[0].id)
            assert await repo.get_value("test.hnw") is None  # 幂等清理
            print("REPO TESTS PASSED")
    finally:
        import config.database as _db
        await _db.dispose()  # 干净收尾，避免连接在事件循环关闭后被 GC


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