"""FastAPI主应用"""

from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from ..config import get_settings, validate_config, print_config
from ..database import init_db
from ..rsa_service import init_rsa_keys
from ..user_context import UserContextMiddleware
from .routes import trip, poi, map as map_routes, auth, history, chat

# 获取配置
settings = get_settings()

# 创建FastAPI应用
app = FastAPI(
    title=settings.app_name,
    version=settings.app_version,
    description="基于HelloAgents框架的智能旅行规划助手API",
    docs_url="/docs",
    redoc_url="/redoc"
)

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

# 注册用户上下文中间件（在每个请求中解析 JWT Cookie，注入 current_user）
app.add_middleware(UserContextMiddleware)

# 注册路由
app.include_router(trip.router, prefix="/api")
app.include_router(poi.router, prefix="/api")
app.include_router(map_routes.router, prefix="/api")
app.include_router(auth.router, prefix="/api")
app.include_router(history.router, prefix="/api")
app.include_router(chat.router, prefix="/api")


@app.on_event("startup")
async def startup_event():
    """应用启动事件"""
    print("\n" + "="*60)
    print(f"🚀 {settings.app_name} v{settings.app_version}")
    print("="*60)
    
    # 打印配置信息
    print_config()

    # 初始化数据库
    try:
        init_db()
        print("✅ 数据库初始化成功")
    except Exception as e:
        print(f"⚠️ 数据库初始化失败: {e}")

    # 初始化RSA密钥
    try:
        init_rsa_keys()
    except Exception as e:
        print(f"⚠️ RSA密钥初始化失败: {e}")

    # 验证配置
    try:
        validate_config()
        print("\n✅ 配置验证通过")
    except ValueError as e:
        print(f"\n❌ 配置验证失败:\n{e}")
        print("\n请检查.env文件并确保所有必要的配置项都已设置")
        raise

    protocol = "https" if settings.ssl_enabled else "http"
    print("\n" + "="*60)
    print(f"📚 API文档: {protocol}://localhost:{settings.port}/docs")
    print(f"📖 ReDoc文档: {protocol}://localhost:{settings.port}/redoc")
    print("="*60 + "\n")


@app.on_event("shutdown")
async def shutdown_event():
    """应用关闭事件"""
    print("\n" + "="*60)
    print("👋 应用正在关闭...")
    print("="*60 + "\n")


@app.get("/")
async def root():
    """根路径"""
    return {
        "name": settings.app_name,
        "version": settings.app_version,
        "status": "running",
        "docs": "/docs",
        "redoc": "/redoc"
    }


@app.get("/health")
async def health():
    """健康检查"""
    return {
        "status": "healthy",
        "service": settings.app_name,
        "version": settings.app_version
    }


if __name__ == "__main__":
    import uvicorn

    ssl_kwargs = {}
    if settings.ssl_enabled:
        ssl_kwargs["ssl_certfile"] = settings.get_ssl_certfile()
        ssl_kwargs["ssl_keyfile"] = settings.get_ssl_keyfile()

    uvicorn.run(
        "app.api.main:app",
        host=settings.host,
        port=settings.port,
        reload=True,
        **ssl_kwargs
    )