from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from contextlib import asynccontextmanager
from app.core.config import settings
from app.core.database import init_db, close_db
from app.api.v1.router import api_router
import logging

logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)

@asynccontextmanager
async def lifespan(app: FastAPI):
    await init_db()
    logger.info("Database initialized")
    yield
    await close_db()
    logger.info("Database connection closed")

app = FastAPI(
    title=settings.PROJECT_NAME,
    version=settings.VERSION,
    lifespan=lifespan
)

app.add_middleware(
    CORSMiddleware,
    allow_origins=settings.BACKEND_CORS_ORIGINS,
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

app.include_router(api_router, prefix=settings.API_V1_STR)

@app.get("/health")
async def health_check():
    return {"status": "healthy", "service": "OAuth Authentication System"}