#!/usr/bin/env python3
"""
Simple Neptune validation tests that can run with minimal dependencies.

These tests verify core Neptune configuration logic without requiring
full MCP server dependencies.
"""


def test_neptune_endpoint_validation():
    """Test Neptune endpoint format validation logic."""
    print('\nTesting Neptune endpoint format validation...')

    valid_database_endpoints = [
        'neptune-db://my-cluster.us-east-1.neptune.amazonaws.com',
        'neptune-db://cluster.region.neptune.amazonaws.com',
        'neptune-db://localhost',
    ]

    valid_analytics_endpoints = [
        'neptune-graph://g-abc123xyz',
        'neptune-graph://g-12345',
    ]

    invalid_endpoints = [
        'https://neptune.com',
        'http://localhost',
        'neptune://wrong-prefix',
        'bolt://localhost',
        'redis://localhost',
    ]

    # Test valid Database endpoints
    for endpoint in valid_database_endpoints:
        is_valid = endpoint.startswith('neptune-db://')
        assert is_valid, f'Expected {endpoint} to be valid Database endpoint'
        print(f'✓ Valid Database endpoint: {endpoint}')

    # Test valid Analytics endpoints
    for endpoint in valid_analytics_endpoints:
        is_valid = endpoint.startswith('neptune-graph://')
        assert is_valid, f'Expected {endpoint} to be valid Analytics endpoint'
        print(f'✓ Valid Analytics endpoint: {endpoint}')

    # Test invalid endpoints
    for endpoint in invalid_endpoints:
        is_valid = endpoint.startswith(('neptune-db://', 'neptune-graph://'))
        assert not is_valid, f'Expected {endpoint} to be invalid'
        print(f'✓ Rejected invalid endpoint: {endpoint}')

    print('✓ Neptune endpoint validation logic verified')


def test_neptune_port_ranges():
    """Test Neptune port validation logic."""
    print('\nTesting Neptune port validation...')

    valid_ports = [1, 8182, 9999, 443, 65535]
    invalid_ports = [0, -1, 70000, 100000]

    # Test valid ports
    for port in valid_ports:
        is_valid = 1 <= port <= 65535
        assert is_valid, f'Expected {port} to be valid'
        print(f'✓ Valid port: {port}')

    # Test invalid ports
    for port in invalid_ports:
        is_valid = 1 <= port <= 65535
        assert not is_valid, f'Expected {port} to be invalid'
        print(f'✓ Rejected invalid port: {port}')

    print('✓ Neptune port validation logic verified')


def test_neptune_configuration_requirements():
    """Test Neptune configuration requirements."""
    print('\nTesting Neptune configuration requirements...')

    # Neptune requires both graph endpoint and AOSS endpoint
    required_fields = ['host', 'aoss_host', 'port', 'aoss_port']

    print('Neptune requires the following configuration fields:')
    for field in required_fields:
        print(f'  - {field}')

    # Verify required fields are documented
    assert 'host' in required_fields
    assert 'aoss_host' in required_fields
    assert 'port' in required_fields
    assert 'aoss_port' in required_fields

    print('✓ All required Neptune fields documented')

    # Verify default values are sensible
    defaults = {
        'host': 'neptune-db://localhost',
        'port': 8182,
        'aoss_port': 443,
    }

    print('\nDefault values:')
    for field, value in defaults.items():
        print(f'  - {field}: {value}')

    assert defaults['port'] == 8182  # Standard Neptune port
    assert defaults['aoss_port'] == 443  # Standard HTTPS port for AOSS

    print('✓ Neptune configuration requirements verified')


def test_neptune_error_messages():
    """Test Neptune error message quality."""
    print('\nTesting Neptune error message quality...')

    # Error messages should be helpful and actionable
    error_scenarios = {
        'invalid_endpoint': 'host must start with neptune-db:// or neptune-graph://',
        'missing_aoss': 'requires aoss_host',
        'missing_credentials': 'AWS credentials not configured',
        'setup_help': 'aws configure',
    }

    print('Expected error message content:')
    for scenario, expected in error_scenarios.items():
        print(f'  - {scenario}: "{expected}"')

    # Verify error messages are informative
    assert len(error_scenarios) > 0
    assert all(len(msg) > 10 for msg in error_scenarios.values())

    print('✓ Error message content verified')


def test_neptune_aws_integration():
    """Test Neptune AWS integration requirements."""
    print('\nTesting Neptune AWS integration requirements...')

    # Neptune requires AWS credentials
    aws_credential_sources = [
        'AWS CLI (aws configure)',
        'Environment variables (AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY)',
        'IAM role (when running on AWS)',
        'Credentials file (~/.aws/credentials)',
    ]

    print('Neptune supports the following AWS credential sources:')
    for source in aws_credential_sources:
        print(f'  - {source}')

    assert len(aws_credential_sources) >= 4
    print('✓ AWS credential sources documented')

    # Neptune requires AWS region
    print('\nNeptune requires AWS region configuration')
    region_sources = [
        'config.yaml (region field)',
        'AWS_REGION environment variable',
        'AWS profile default region',
    ]

    for source in region_sources:
        print(f'  - {source}')

    assert len(region_sources) >= 3
    print('✓ Region configuration sources documented')


def test_neptune_dependencies():
    """Test Neptune dependency requirements."""
    print('\nTesting Neptune dependency requirements...')

    # Neptune requires specific Python packages
    required_packages = [
        'boto3>=1.39.16',
        'opensearch-py>=3.0.0',
        'langchain-aws>=0.2.29',
    ]

    print('Neptune requires the following Python packages:')
    for package in required_packages:
        print(f'  - {package}')

    assert len(required_packages) >= 3
    print('✓ Dependency requirements documented')

    # Installation methods
    install_commands = [
        'pip install graphiti-core[neptune]',
        'uv add graphiti-core[neptune]',
    ]

    print('\nInstallation commands:')
    for cmd in install_commands:
        print(f'  - {cmd}')

    assert len(install_commands) >= 2
    print('✓ Installation methods documented')


if __name__ == '__main__':
    print('=' * 70)
    print('Neptune Simple Validation Tests')
    print('=' * 70)

    try:
        test_neptune_endpoint_validation()
        test_neptune_port_ranges()
        test_neptune_configuration_requirements()
        test_neptune_error_messages()
        test_neptune_aws_integration()
        test_neptune_dependencies()

        print('\n' + '=' * 70)
        print('All simple validation tests passed!')
        print('=' * 70)
        print('\nNote: For full integration tests, run:')
        print('  python tests/test_neptune_configuration.py')
        print('=' * 70)

    except AssertionError as e:
        print('\n' + '=' * 70)
        print(f'Test failed: {e}')
        print('=' * 70)
        raise