"""
Authentication utilities for training service
"""

import httpx
from fastapi import HTTPException, status, Depends
from fastapi.security import HTTPBearer
import logging

from app.core.config import settings

logger = logging.getLogger(__name__)

security = HTTPBearer()

async def verify_token(token: str = Depends(security)):
    """Verify token with auth service"""
    try:
        async with httpx.AsyncClient() as client:
            response = await client.post(
                f"{settings.AUTH_SERVICE_URL}/auth/verify",
                headers={"Authorization": f"Bearer {token.credentials}"}
            )
            
            if response.status_code == 200:
                return response.json()
            else:
                raise HTTPException(
                    status_code=status.HTTP_401_UNAUTHORIZED,
                    detail="Invalid authentication credentials"
                )
                
    except httpx.RequestError as e:
        logger.error(f"Auth service unavailable: {e}")
        raise HTTPException(
            status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
            detail="Authentication service unavailable"
        )