"""FastAPI application factory."""

import os

import uvicorn
from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from fastapi.staticfiles import StaticFiles
from starlette.middleware.sessions import SessionMiddleware

from torrent2drive.config import STATIC_DIR
from torrent2drive.routes import register_routes
from torrent2drive.session import start_gc_loop


def create_app() -> FastAPI:
    application = FastAPI(title="Torrent2Space")
    application.add_middleware(
        CORSMiddleware,
        allow_origins=["*"],
        allow_methods=["*"],
        allow_headers=["*"],
    )
    application.add_middleware(
        SessionMiddleware,
        secret_key=os.environ.get("SESSION_SECRET", "torrent2space-change-me"),
        same_site="lax",
    )
    register_routes(application)
    assets_dir = os.path.join(STATIC_DIR, "assets")
    if os.path.isdir(assets_dir):
        application.mount("/assets", StaticFiles(directory=assets_dir), name="assets")
    if os.path.isdir(STATIC_DIR):
        application.mount("/static", StaticFiles(directory=STATIC_DIR), name="static")
    return application


app = create_app()
start_gc_loop()


def main():
    uvicorn.run(
        "torrent2drive.app:app",
        host="0.0.0.0",
        port=int(os.environ.get("PORT", "7860")),
        reload=os.environ.get("T2D_RELOAD", "").lower() in ("1", "true", "yes"),
    )


if __name__ == "__main__":
    main()