#!/usr/bin/env python
"""
Test script to demonstrate the improved login error handling
"""
import os
import django

# Setup Django
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'config.settings.develop')
django.setup()

from django.test import RequestFactory
from apps.account.views.user import UserLoginView
from rest_framework.exceptions import ValidationError
from django.contrib.auth.models import User as DjangoUser

def test_login_errors():
    """Test the different login error scenarios"""

    factory = RequestFactory()
    view = UserLoginView()

    print("🧪 Testing Login Error Handling")
    print("=" * 40)

    # Test Case 1: Non-existent email
    print("\n1️⃣ Testing non-existent email:")
    try:
        request = factory.post('/api/account/login/', {
            'email': 'nonexistent@example.com',
            'password': 'somepassword'
        }, content_type='application/json')
        view.request = request
        response = view.create(request)
        print("❌ Should have raised ValidationError")
    except ValidationError as e:
        print(f"✅ Correctly caught ValidationError: {e.detail}")
    except Exception as e:
        print(f"❌ Unexpected error: {e}")

    # Test Case 2: Wrong password for existing user
    print("\n2️⃣ Testing wrong password for existing user:")
    try:
        # First, let's create a test user if it doesn't exist
        test_email = 'test@example.com'
        test_password = 'correctpassword'

        if not DjangoUser.objects.filter(email=test_email).exists():
            DjangoUser.objects.create_user(
                username=test_email,
                email=test_email,
                password=test_password
            )
            print(f"   Created test user: {test_email}")

        # Now test wrong password
        request = factory.post('/api/account/login/', {
            'email': test_email,
            'password': 'wrongpassword'
        }, content_type='application/json')
        view.request = request
        response = view.create(request)
        print("❌ Should have raised ValidationError")
    except ValidationError as e:
        print(f"✅ Correctly caught ValidationError: {e.detail}")
    except Exception as e:
        print(f"❌ Unexpected error: {e}")

    # Test Case 3: Correct login (should succeed if user exists)
    print("\n3️⃣ Testing correct login:")
    try:
        request = factory.post('/api/account/login/', {
            'email': test_email,
            'password': test_password
        }, content_type='application/json')
        view.request = request
        response = view.create(request)
        if response.status_code == 201:
            print("✅ Login successful (as expected)")
        else:
            print(f"❌ Login failed with status: {response.status_code}")
    except ValidationError as e:
        print(f"ℹ️  ValidationError (might be expected): {e.detail}")
    except Exception as e:
        print(f"❌ Unexpected error: {e}")

    print("\n" + "=" * 40)
    print("🎯 SUMMARY:")
    print("- Non-existent email → 'user not exists with this email'")
    print("- Wrong password → 'password is incorrect'")
    print("- Correct credentials → Successful login")

if __name__ == "__main__":
    test_login_errors()