from typing import Annotated

from fastapi import Depends, HTTPException, status
from fastapi.security import OAuth2PasswordBearer
from sqlalchemy import select
from sqlalchemy.ext.asyncio import AsyncSession

from app.core.database import get_db
from app.core.security import decode_access_token
from app.models import User

oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/auth/login")


async def get_current_user(
    token: Annotated[str, Depends(oauth2_scheme)],
    db: Annotated[AsyncSession, Depends(get_db)],
) -> User:
    payload = decode_access_token(token)
    if not payload or not payload.get("sub"):
        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Invalid token")
    result = await db.execute(select(User).where(User.id == payload["sub"], User.is_deleted == False))
    user = result.scalar_one_or_none()
    if not user or user.status != "enabled":
        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Inactive user")
    return user