"""平台服务入口"""
import logging
from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware

from .config import get_settings
from .routers import stats_router, logs_router, config_router, health_router
from .routers.auth import router as auth_router
from .routers.tenants import router as tenants_router
from .routers.tenant_apps import router as tenant_apps_router
from .routers.tenant_wechat_apps import router as tenant_wechat_apps_router
from .routers.apps import router as apps_router
from .routers.wechat import router as wechat_router
from .routers.alerts import router as alerts_router
from .routers.cost import router as cost_router
from .routers.quota import router as quota_router
from .routers.tool_configs import router as tool_configs_router
from .routers.tasks import router as tasks_router
from .middleware import TraceMiddleware, setup_exception_handlers, RequestLoggerMiddleware
from .middleware.trace import setup_logging
from .services.scheduler import start_scheduler, shutdown_scheduler

# 配置日志（包含 TraceID）
setup_logging(level=logging.INFO, include_trace=True)

settings = get_settings()

app = FastAPI(
    title=settings.APP_NAME,
    version=settings.APP_VERSION,
    description="平台基础设施服务 - 统计/日志/配置管理"
)

# 配置统一异常处理
setup_exception_handlers(app)

# 中间件按添加的反序执行，所以：
# 1. CORS 最后添加，最先执行
# 2. TraceMiddleware 在 RequestLoggerMiddleware 之后添加，这样先执行
# 3. RequestLoggerMiddleware 最先添加，最后执行（此时 trace_id 已设置）

# 请求日志中间件（自动记录到数据库）
app.add_middleware(RequestLoggerMiddleware, app_code="000-platform")

# TraceID 追踪中间件
app.add_middleware(TraceMiddleware, log_requests=True)

# CORS
app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
    expose_headers=["X-Trace-ID", "X-Response-Time"]
)

# 注册路由
app.include_router(health_router, prefix="/api")
app.include_router(auth_router, prefix="/api")
app.include_router(tenants_router, prefix="/api")
app.include_router(tenant_apps_router, prefix="/api")
app.include_router(tenant_wechat_apps_router, prefix="/api")
app.include_router(apps_router, prefix="/api")
app.include_router(stats_router, prefix="/api")
app.include_router(logs_router, prefix="/api")
app.include_router(config_router, prefix="/api")
app.include_router(wechat_router, prefix="/api")
app.include_router(alerts_router, prefix="/api")
app.include_router(cost_router, prefix="/api")
app.include_router(quota_router, prefix="/api")
app.include_router(tool_configs_router, prefix="/api")
app.include_router(tasks_router, prefix="/api")


@app.on_event("startup")
async def startup_event():
    """应用启动时初始化调度器"""
    try:
        start_scheduler()
        logging.info("Scheduler started successfully")
    except Exception as e:
        logging.error(f"Failed to start scheduler: {e}")


@app.on_event("shutdown")
async def shutdown_event():
    """应用关闭时停止调度器"""
    try:
        shutdown_scheduler()
        logging.info("Scheduler shutdown successfully")
    except Exception as e:
        logging.error(f"Failed to shutdown scheduler: {e}")


@app.get("/")
async def root():
    return {
        "service": settings.APP_NAME,
        "version": settings.APP_VERSION,
        "docs": "/docs"
    }