from contextlib import asynccontextmanager
from fastapi import FastAPI, Request
from fastapi.middleware.cors import CORSMiddleware
from fastapi.responses import JSONResponse
import structlog

from app.api import auth, health, vehicles, valuations
from app.core.database import engine
from app.core import database as db_module

logger = structlog.get_logger()


@asynccontextmanager
async def lifespan(app: FastAPI):
    logger.info("Avvio GMG Smart Quote backend")
    yield
    await engine.dispose()
    logger.info("Shutdown completo")


app = FastAPI(
    title="GMG Smart Quote API",
    version="1.0.0",
    lifespan=lifespan,
)

app.add_middleware(
    CORSMiddleware,
    allow_origins=[
        "http://localhost:3000",
        "http://localhost:3001",
        "http://localhost:5173",
        "http://127.0.0.1:3000",
        "http://127.0.0.1:3001",
    ],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)


@app.exception_handler(Exception)
async def global_exception_handler(request: Request, exc: Exception):
    logger.error("Unhandled exception", path=request.url.path, error=str(exc))
    return JSONResponse(
        status_code=500,
        content={"detail": "Errore interno del server"},
    )


app.include_router(auth.router, prefix="/api/auth", tags=["auth"])
app.include_router(health.router, prefix="/api", tags=["health"])
app.include_router(vehicles.router, prefix="/api/vehicles", tags=["vehicles"])
app.include_router(valuations.router, prefix="/api/valuations", tags=["valuations"])