import logging

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

from app.config import get_settings
from app.routers import health

logger = logging.getLogger("app")


def create_app() -> FastAPI:
    settings = get_settings()
    app = FastAPI(title=settings.app_name)

    if settings.cors_origins:
        app.add_middleware(
            CORSMiddleware,
            allow_origins=settings.cors_origins,
            allow_methods=["*"],
            allow_headers=["*"],
        )

    @app.exception_handler(Exception)
    async def unhandled(request: Request, exc: Exception) -> JSONResponse:
        logger.exception("Unhandled error on %s %s", request.method, request.url.path)
        return JSONResponse(status_code=500, content={"detail": "Internal server error"})

    app.include_router(health.router)
    # Include feature routers here, e.g. app.include_router(items.router, prefix="/items")

    return app


app = create_app()