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

from config import cfg
from core.auth import jwt
from db.session import get_db
from external.pally import PallyClient
from schemas.dto import AuthContext


async def get_auth_context(
    request: Request, session: AsyncSession = Depends(get_db)
) -> AuthContext | None:
    auth = request.headers.get("Authorization")

    if not auth:
        raise HTTPException(status_code=403, detail="No authorization provided.")

    if auth.startswith("Bearer"):
        token = auth.removeprefix("Bearer ").strip()
        return await jwt.authorize(token, session)


def get_pally_client() -> PallyClient:
    return PallyClient(api_token=cfg.pally_token, payer_pays_commission=True)