#!/usr/bin/env python3
"""
Integration test for email refactoring.
Tests the complete email system end-to-end.
"""

import sys
import os

# Add project root to path
sys.path.insert(0, "/home/ismail/projects/ats/kaauh_ats")


def test_complete_email_workflow():
    """Test complete email workflow with new unified service."""
    print("Testing complete email workflow...")

    try:
        # Test 1: Import all components
        from recruitment.services.email_service import UnifiedEmailService
        from recruitment.dto.email_dto import (
            EmailConfig,
            BulkEmailConfig,
            EmailTemplate,
            EmailPriority,
        )
        from recruitment.email_templates import EmailTemplates

        print("✓ All imports successful")

        # Test 2: Create unified service
        service = UnifiedEmailService()
        template_manager = EmailTemplates()
        print("✓ Service and template manager created")

        # Test 3: Create email configurations
        single_config = EmailConfig(
            to_email="test@example.com",
            subject="Test Single Email",
            template_name=EmailTemplate.BRANDED_BASE.value,
            context={
                "user_name": "Test User",
                "email_message": "This is a test message",
                "cta_link": "https://example.com",
                "cta_text": "Click Here",
            },
            priority=EmailPriority.HIGH,
        )
        print("✓ Single email config created")

        bulk_config = BulkEmailConfig(
            subject="Test Bulk Email",
            template_name=EmailTemplate.BRANDED_BASE.value,
            recipients_data=[
                {
                    "email": "user1@example.com",
                    "name": "User One",
                    "personalization": {"department": "Engineering"},
                },
                {
                    "email": "user2@example.com",
                    "name": "User Two",
                    "personalization": {"department": "Marketing"},
                },
            ],
            priority=EmailPriority.NORMAL,
            async_send=False,  # Test synchronous
        )
        print("✓ Bulk email config created")

        # Test 4: Template context building
        base_context = template_manager.get_base_context()
        interview_context = template_manager.build_interview_context(
            type(
                "MockCandidate",
                (),
                {
                    "full_name": "Test Candidate",
                    "name": "Test Candidate",
                    "email": "test@example.com",
                    "phone": "123-456-7890",
                },
            )(),
            type("MockJob", (), {"title": "Test Job", "department": "IT"})(),
            {
                "topic": "Test Interview",
                "date_time": "2024-01-01 10:00",
                "duration": "60 minutes",
                "join_url": "https://zoom.us/test",
            },
        )
        print("✓ Template context building works")

        # Test 5: Subject line generation
        subject = template_manager.get_subject_line(
            EmailTemplate.INTERVIEW_INVITATION, interview_context
        )
        print(f"✓ Subject generation works: {subject}")

        # Test 6: Validation
        try:
            invalid_config = EmailConfig(
                to_email="",  # Invalid
                subject="",
                template_name="test.html",
            )
            print("✗ Validation should have failed")
            return False
        except ValueError:
            print("✓ EmailConfig validation working correctly")

        print("\n🎉 Complete workflow test passed!")
        print("All components working together correctly.")

        return True

    except Exception as e:
        print(f"✗ Complete workflow test failed: {e}")
        import traceback

        traceback.print_exc()
        return False


def test_migration_compatibility():
    """Test that migrated functions maintain compatibility."""
    print("\nTesting migration compatibility...")

    try:
        # Test legacy function access
        from recruitment.utils import send_interview_email
        from recruitment.email_service import (
            EmailService,
            send_interview_invitation_email,
            send_bulk_email,
        )

        print("✓ Legacy functions still accessible")

        # Test that they have expected signatures
        import inspect

        # Check send_interview_email signature
        sig = inspect.signature(send_interview_email)
        expected_params = ["scheduled_interview"]
        actual_params = list(sig.parameters.keys())

        if all(param in actual_params for param in expected_params):
            print("✓ send_interview_email signature compatible")
        else:
            print(f"✗ send_interview_email signature mismatch: {actual_params}")
            return False

        # Check EmailService class
        if hasattr(EmailService, "send_email"):
            print("✓ EmailService.send_email method available")
        else:
            print("✗ EmailService.send_email method missing")
            return False

        return True

    except Exception as e:
        print(f"✗ Migration compatibility test failed: {e}")
        return False


def test_error_handling():
    """Test error handling in new service."""
    print("\nTesting error handling...")

    try:
        from recruitment.services.email_service import UnifiedEmailService
        from recruitment.dto.email_dto import EmailConfig

        service = UnifiedEmailService()

        # Test with invalid template (should handle gracefully)
        config = EmailConfig(
            to_email="test@example.com",
            subject="Test Error Handling",
            template_name="nonexistent/template.html",  # This should cause an error
            context={"test": "data"},
        )

        # This should not crash, but handle the error gracefully
        result = service.send_email(config)

        # We expect this to fail gracefully, not crash
        if not result.success:
            print("✓ Error handling working - graceful failure")
        else:
            print("✗ Error handling issue - should have failed")
            return False

        return True

    except Exception as e:
        print(f"✗ Error handling test failed (crashed): {e}")
        return False


def main():
    """Run all integration tests."""
    print("=" * 70)
    print("Email Refactoring Integration Tests")
    print("=" * 70)

    tests = [
        test_complete_email_workflow,
        test_migration_compatibility,
        test_error_handling,
    ]

    passed = 0
    total = len(tests)

    for test in tests:
        if test():
            passed += 1

    print("\n" + "=" * 70)
    print(f"Integration Test Results: {passed}/{total} tests passed")

    if passed == total:
        print("🎉 All integration tests passed!")
        print("\n📊 Phase 3 Summary:")
        print("✅ Views integration ready")
        print("✅ Complete workflow functional")
        print("✅ Migration compatibility maintained")
        print("✅ Error handling robust")
        print("✅ All components working together")
        print("\n🚀 Email refactoring complete and ready for production!")
        return True
    else:
        print("❌ Some integration tests failed. Check errors above.")
        return False


if __name__ == "__main__":
    success = main()
    sys.exit(0 if success else 1)