import os
import sys
from dotenv import load_dotenv

# Add parent dir to path so we can import backend packages
sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))

from backend.avito_api import AvitoAPI
from backend.avito_api.exceptions import AvitoAPIError, AvitoAuthError

def test_avito_api():
    # Load environment variables
    env_path = os.path.join(os.path.dirname(__file__), '.env')
    load_dotenv(env_path)
    
    # Check if keys are loaded
    client_id = os.getenv('AVITO_CLIENT_ID')
    client_secret = os.getenv('AVITO_CLIENT_SECRET')
    
    if not client_id or not client_secret:
        print("Error: AVITO_CLIENT_ID and AVITO_CLIENT_SECRET must be in backend/.env")
        return
        
    print(f"Initializing AvitoAPI (Authenticating...)")

    try:
        api = AvitoAPI()
        print("Success! Successfully authenticated and received access token.")
        print(f"Token snippet: {api.client.access_token[:10]}...")
        
        # For full testing we would need user_id (Avito user id)
        # print("\n--- Testing Messenger API ---")
        # chats_response = api.messenger.get_chats(user_id="12345", limit=5)
        # print("Success! Response keys:", chats_response.keys())
            
    except AvitoAuthError as e:
        print(f"Authentication Failed: {e}")
    except AvitoAPIError as e:
        print(f"API Error: {e}")
    except Exception as e:
        print(f"Unexpected Error: {e}")

if __name__ == '__main__':
    test_avito_api()