"""
Documentation Generator Agent

Automatically generates comprehensive code documentation including
API docs, docstrings, README files, and usage examples.
"""

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


class DocumentationGeneratorAgent(BaseAgent):
    """
    Generates comprehensive code documentation.

    Generates:
    - API documentation
    - Docstrings/JSDoc
    - README files
    - Usage examples
    - Architecture diagrams
    - Changelog
    """

    def __init__(self):
        super().__init__(
            name='documentation-generator',
            description='Generate comprehensive code documentation',
            category='engineering',
            version='1.0.0',
            tags=['documentation', 'api-docs', 'readme', 'docstrings']
        )

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

        Args:
            params: {
                'source_path': str,
                'language': 'python|javascript|typescript|go|rust',
                'doc_type': 'api|readme|docstrings|changelog|all',
                'format': 'markdown|rst|html|pdf',
                'options': {
                    'include_examples': bool,
                    'include_diagrams': bool,
                    'api_version': str,
                    'template': str,
                    'output_path': str
                }
            }

        Returns:
            {
                'status': 'success|failed',
                'files_generated': List[str],
                'doc_type': str,
                'format': str,
                'pages_generated': int,
                'functions_documented': int,
                'classes_documented': int,
                'examples_included': int
            }
        """
        source_path = params.get('source_path')
        language = params.get('language', 'python')
        doc_type = params.get('doc_type', 'api')
        format_type = params.get('format', 'markdown')
        options = params.get('options', {})

        self.logger.info(
            f"Generating {doc_type} documentation in {format_type} format"
        )

        # Mock documentation generation
        files_generated = self._get_doc_files(doc_type, format_type)

        return {
            'status': 'success',
            'source_path': source_path,
            'language': language,
            'doc_type': doc_type,
            'format': format_type,
            'files_generated': files_generated,
            'pages_generated': len(files_generated),
            'output_path': options.get('output_path', './docs'),
            'functions_documented': 47,
            'classes_documented': 12,
            'modules_documented': 8,
            'examples_included': 23,
            'diagrams_generated': 5 if options.get('include_diagrams') else 0,
            'sections': [
                'Introduction',
                'Installation',
                'Quick Start',
                'API Reference',
                'Examples',
                'Configuration',
                'Troubleshooting',
                'Contributing',
                'Changelog'
            ],
            'coverage': {
                'public_methods': 95.5,
                'public_classes': 100.0,
                'modules': 100.0
            },
            'quality_metrics': {
                'completeness': 92.3,
                'clarity': 88.7,
                'example_coverage': 78.2
            },
            'generated_content': {
                'api_endpoints': 23,
                'code_examples': 34,
                'usage_scenarios': 12,
                'configuration_options': 45
            },
            'next_steps': [
                'Review generated documentation',
                'Add custom content where needed',
                'Deploy to documentation hosting',
                'Update documentation in CI/CD'
            ]
        }

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

        valid_doc_types = ['api', 'readme', 'docstrings', 'changelog', 'all']
        doc_type = params.get('doc_type', 'api')

        if doc_type not in valid_doc_types:
            self.logger.error(f"Invalid documentation type: {doc_type}")
            return False

        valid_formats = ['markdown', 'rst', 'html', 'pdf']
        format_type = params.get('format', 'markdown')

        if format_type not in valid_formats:
            self.logger.error(f"Invalid format: {format_type}")
            return False

        return True

    def _get_doc_files(self, doc_type: str, format_type: str) -> List[str]:
        """Get list of documentation files to generate."""
        ext = f'.{format_type}' if format_type in ['md', 'rst', 'html'] else '.md'

        files = {
            'api': [
                f'api/index{ext}',
                f'api/reference{ext}',
                f'api/endpoints{ext}'
            ],
            'readme': [
                f'README{ext}'
            ],
            'docstrings': [
                f'docstrings_report{ext}'
            ],
            'changelog': [
                f'CHANGELOG{ext}'
            ],
            'all': [
                f'README{ext}',
                f'api/index{ext}',
                f'api/reference{ext}',
                f'CHANGELOG{ext}',
                f'CONTRIBUTING{ext}',
                f'examples{ext}'
            ]
        }

        return files.get(doc_type, files['api'])
