from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware

from .config import ALLOWED_HOSTS, DEBUG, PROJECT_NAME, VERSION
from .graphql import mount_graphql


def get_application() -> FastAPI:
    app = FastAPI(title=PROJECT_NAME, debug=DEBUG, version=VERSION)
    # middleware are executed in reverse order (it's an onion)
    app.add_middleware(
        CORSMiddleware,
        allow_origins=ALLOWED_HOSTS or ["*"],
        allow_credentials=True,
        allow_methods=["*"],
        allow_headers=["*"],
    )

    return mount_graphql(app)