"""
Dependency Updater Agent

Manages and updates project dependencies, checking for security
vulnerabilities and compatibility issues.
"""

from typing import Any, Dict, List
from agents.base import BaseAgent


class DependencyUpdaterAgent(BaseAgent):
    """
    Updates and manages project dependencies.

    Features:
    - Dependency version checking
    - Security vulnerability scanning
    - Compatibility verification
    - Automated updates
    - Breaking change detection
    - License compliance
    """

    def __init__(self):
        super().__init__(
            name='dependency-updater',
            description='Update and manage project dependencies',
            category='engineering',
            version='1.0.0',
            tags=['dependencies', 'security', 'updates', 'package-management']
        )

    async def execute(self, params: Dict[str, Any]) -> Dict[str, Any]:
        """
        Update dependencies.

        Args:
            params: {
                'project_path': str,
                'package_manager': 'npm|pip|cargo|go-mod|bundler',
                'update_type': 'security|patch|minor|major|all',
                'options': {
                    'check_vulnerabilities': bool,
                    'check_compatibility': bool,
                    'auto_update': bool,
                    'create_pr': bool,
                    'run_tests': bool
                }
            }

        Returns:
            {
                'status': 'success|failed',
                'dependencies_checked': int,
                'updates_available': List[Dict],
                'security_vulnerabilities': List[Dict],
                'updated_dependencies': List[str],
                'breaking_changes': List[Dict],
                'compatibility_issues': List[Dict]
            }
        """
        project_path = params.get('project_path')
        package_manager = params.get('package_manager', 'npm')
        update_type = params.get('update_type', 'security')
        options = params.get('options', {})

        self.logger.info(
            f"Checking dependencies in {project_path} ({package_manager})"
        )

        # Mock dependency analysis
        updates_available = [
            {
                'name': 'requests',
                'current_version': '2.28.0',
                'latest_version': '2.31.0',
                'update_type': 'minor',
                'security_fix': False,
                'breaking_changes': False,
                'changelog_url': 'https://github.com/psf/requests/releases'
            },
            {
                'name': 'django',
                'current_version': '4.1.0',
                'latest_version': '4.2.7',
                'update_type': 'minor',
                'security_fix': True,
                'cve_ids': ['CVE-2023-12345'],
                'breaking_changes': False,
                'changelog_url': 'https://docs.djangoproject.com/en/4.2/releases/'
            },
            {
                'name': 'pytest',
                'current_version': '7.2.0',
                'latest_version': '8.0.0',
                'update_type': 'major',
                'security_fix': False,
                'breaking_changes': True,
                'breaking_change_details': [
                    'Dropped Python 3.7 support',
                    'Changed fixture scope behavior'
                ],
                'changelog_url': 'https://docs.pytest.org/en/stable/changelog.html'
            }
        ]

        vulnerabilities = [
            {
                'package': 'django',
                'current_version': '4.1.0',
                'vulnerability': 'CVE-2023-12345',
                'severity': 'high',
                'fixed_in': '4.2.7',
                'description': 'SQL injection vulnerability in admin interface',
                'cvss_score': 8.1,
                'exploit_available': False
            }
        ]

        return {
            'status': 'success',
            'project_path': project_path,
            'package_manager': package_manager,
            'update_type': update_type,
            'dependencies_checked': 47,
            'updates_available': updates_available,
            'total_updates': len(updates_available),
            'security_updates': sum(1 for u in updates_available if u.get('security_fix')),
            'patch_updates': 3,
            'minor_updates': 8,
            'major_updates': 2,
            'security_vulnerabilities': vulnerabilities,
            'critical_vulnerabilities': 0,
            'high_vulnerabilities': 1,
            'medium_vulnerabilities': 0,
            'low_vulnerabilities': 0,
            'updated_dependencies': [
                'django==4.2.7',
                'requests==2.31.0'
            ] if options.get('auto_update') else [],
            'breaking_changes': [
                {
                    'package': 'pytest',
                    'version': '8.0.0',
                    'changes': [
                        'Dropped Python 3.7 support',
                        'Changed fixture scope behavior'
                    ]
                }
            ],
            'compatibility_issues': [],
            'license_changes': [
                {
                    'package': 'some-package',
                    'old_license': 'MIT',
                    'new_license': 'Apache-2.0',
                    'requires_review': True
                }
            ],
            'recommendations': [
                'Update django immediately due to security vulnerability',
                'Review breaking changes in pytest 8.0.0 before updating',
                'Run full test suite after updates',
                'Review license changes for compliance'
            ],
            'next_steps': [
                'Review and approve updates',
                'Test in staging environment',
                'Update lockfile',
                'Deploy to production'
            ]
        }

    def validate_params(self, params: Dict[str, Any]) -> bool:
        """Validate dependency update parameters."""
        if 'project_path' not in params:
            self.logger.error("Missing required field: project_path")
            return False

        valid_managers = ['npm', 'pip', 'cargo', 'go-mod', 'bundler']
        package_manager = params.get('package_manager', 'npm')

        if package_manager not in valid_managers:
            self.logger.error(f"Unsupported package manager: {package_manager}")
            return False

        valid_types = ['security', 'patch', 'minor', 'major', 'all']
        update_type = params.get('update_type', 'security')

        if update_type not in valid_types:
            self.logger.error(f"Invalid update type: {update_type}")
            return False

        return True
