"""应用生命周期管理"""
from contextlib import asynccontextmanager
from fastapi import FastAPI
from core.db import init_db
from core.config import settings as app_settings
from core.log import logger
from api.deps import create_scheduler_service


@asynccontextmanager
async def lifespan(app: FastAPI):
    """应用启动和关闭时的生命周期管理"""
    # 初始化数据库
    await init_db()

    # 创建调度器并挂载到 app.state
    scheduler_service = create_scheduler_service()
    app.state.scheduler_service = scheduler_service
    app.state.validation_queue = scheduler_service.validation_queue

    # 加载设置并决定是否启动调度器
    from services.settings_service import SettingsService
    settings_service = SettingsService()
    try:
        settings = await settings_service.get_settings()
        scheduler_service.interval_minutes = settings.get(
            "validate_interval_minutes", app_settings.validator_timeout
        )
        if settings.get("auto_validate", True):
            await scheduler_service.start()
    except Exception as e:
        logger.error(f"Failed to load settings on startup: {e}")

    logger.info("API server started")
    yield

    # 关闭调度器
    await scheduler_service.stop()
    logger.info("API server shutdown")