from fastapi import Depends, Header, HTTPException, Request, status
from sqlalchemy.ext.asyncio import AsyncSession

from app.core.config import Settings, get_settings
from app.core.database import get_session


async def get_db(session: AsyncSession = Depends(get_session)) -> AsyncSession:
    return session


def get_app_settings() -> Settings:
    return get_settings()


async def require_admin(
    request: Request,
    authorization: str | None = Header(default=None),
    settings: Settings = Depends(get_app_settings),
) -> None:
    token = None
    if authorization and authorization.lower().startswith("bearer "):
        token = authorization.split(" ", 1)[1]
    if token != settings.admin_token:
        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Invalid admin token")