"""
FastAPI 应用入口
"""
import os
from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from fastapi.staticfiles import StaticFiles
from contextlib import asynccontextmanager

from app.config import settings
from app.database import init_db
from app.routers import companies, reports, analysis, scheduler, stats
from app.services.scheduler_service import scheduler_service
from app.utils.logger import logger


@asynccontextmanager
async def lifespan(app: FastAPI):
    """应用生命周期管理"""
    # 启动时
    logger.info(f"正在启动 {settings.APP_NAME}...")
    
    # 初始化数据库
    await init_db()
    logger.info("数据库已初始化")
    
    # 启动定时任务
    if settings.SCHEDULER_ENABLED:
        scheduler_service.start()
    
    yield
    
    # 关闭时
    logger.info("应用正在关闭...")
    scheduler_service.stop()


app = FastAPI(
    title=settings.APP_NAME,
    version=settings.APP_VERSION,
    lifespan=lifespan
)

# CORS配置
app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

# 注册路由
app.include_router(companies.router)
app.include_router(reports.router)
app.include_router(analysis.router)
app.include_router(scheduler.router)
app.include_router(stats.router)

# 挂载静态文件 (前端)
# 确保frontend目录存在
frontend_dir = os.path.join(os.path.dirname(os.path.dirname(os.path.dirname(__file__))), "frontend")
if os.path.exists(frontend_dir):
    app.mount("/", StaticFiles(directory=frontend_dir, html=True), name="frontend")
else:
    logger.warning("前端目录不存在，API模式运行")

@app.get("/health")
async def health_check():
    """健康检查"""
    return {"status": "ok", "version": settings.APP_VERSION}