import requests
import sys

def test_backend_connection():
    base_url = "http://127.0.0.1:8000"
    print(f"Testing connection to {base_url}...")

    try:
        # 1. Test Health Endpoint
        print("\n1. Pinging Health Endpoint...")
        response = requests.get(f"{base_url}/health")
        if response.status_code == 200:
            print("✅ Backend is reachable and healthy!")
            print(f"   Response: {response.json()}")
        else:
            print(f"❌ Backend reachable but returned status {response.status_code}")
            print(f"   Response: {response.text}")
            return

        # 2. Test Login Endpoint (Validation Only)
        print("\n2. Testing Login Endpoint Reachability...")
        # We send garbage data just to see if the server receives it and responds (even with 401/422)
        payload = {"identifier": "ping", "password": "pong"} 
        response = requests.post(f"{base_url}/api/auth/login", json=payload)
        
        print(f"   Status Code: {response.status_code}")
        if response.status_code in [200, 400, 401, 404, 422]:
            print("✅ Login endpoint is reachable (request received by server)")
        else:
            print("❌ Login endpoint unreachable or unexpected error")

    except requests.exceptions.ConnectionError:
        print(f"\n❌ CONNECTION FAILED: Could not connect to {base_url}")
        print("   - Is the backend server running?")
        print("   - Is it running on port 8000?")
        print("   - Try: 'python -m uvicorn main:app --reload' in the AIDA directory")
    except Exception as e:
        print(f"\n❌ AN ERROR OCCURRED: {e}")

if __name__ == "__main__":
    test_backend_connection()