import firebase_admin
from firebase_admin import auth as firebase_auth, credentials
from fastapi import Depends, HTTPException, status
from fastapi.security import HTTPAuthorizationCredentials, HTTPBearer

from app.config import settings

if settings.firebase_project_id:
    firebase_admin.initialize_app(options={"projectId": settings.firebase_project_id})

bearer = HTTPBearer()


async def get_current_user(
    cred: HTTPAuthorizationCredentials = Depends(bearer),
) -> dict:
    try:
        decoded = firebase_auth.verify_id_token(cred.credentials)
        return decoded
    except Exception:
        raise HTTPException(
            status_code=status.HTTP_401_UNAUTHORIZED,
            detail="Invalid or expired token",
        )