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

from app.core.config import settings
from app.db.database import Base, engine
from app.models import models  # noqa: F401  (register models)
from app.services.storage import ensure_bucket
from app.api.routes import health, collections, admin, auth


@asynccontextmanager
async def lifespan(app: FastAPI):
    Base.metadata.create_all(bind=engine)
    try:
        ensure_bucket()
    except Exception as e:
        # Don't crash the API if MinIO is briefly unavailable at startup.
        print(f"[startup] MinIO bucket init skipped: {e}")
    yield


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

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

app.include_router(health.router, tags=["meta"])
app.include_router(auth.router, tags=["auth"])
app.include_router(collections.router, prefix="/collections", tags=["collections"])
app.include_router(admin.router, prefix="/admin", tags=["admin"])