from collections.abc import AsyncIterator
from contextlib import asynccontextmanager

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

from app.api.router import api_router
from app.core.config import get_settings
from app.core.database import init_database
from app.core.dependencies import app_state
from app.core.logging import configure_logging
from app.websocket.router import websocket_router


@asynccontextmanager
async def lifespan(_: FastAPI) -> AsyncIterator[None]:
    configure_logging()
    await init_database()
    await app_state.startup()
    try:
        yield
    finally:
        await app_state.shutdown()


settings = get_settings()
app = FastAPI(title=settings.app_name, lifespan=lifespan, docs_url=None, redoc_url=None)
app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)
app.include_router(api_router, prefix="/api/v1")
app.include_router(websocket_router)

if settings.frontend_dist.exists():
    app.mount("/", StaticFiles(directory=settings.frontend_dist, html=True), name="frontend")