"""
Document Generator Agent

Generates business documents including proposals, contracts, reports,
and presentations using templates and AI-driven content generation.
"""

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


class DocumentGeneratorAgent(BaseAgent):
    """
    Generates business documents from templates.

    Features:
    - Template-based generation
    - Dynamic content insertion
    - PDF/DOCX export
    - Brand compliance
    - Version control
    - Collaborative editing
    """

    def __init__(self):
        super().__init__(
            name='document-generator',
            description='Generate business documents from templates',
            category='business',
            version='1.0.0',
            tags=['documents', 'generation', 'templates', 'automation', 'reports']
        )

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

        Args:
            params: {
                'document_type': 'proposal|contract|report|presentation|invoice|memo',
                'template_id': str,
                'data': Dict,
                'format': 'pdf|docx|html',
                'options': {
                    'include_toc': bool,
                    'add_watermark': bool,
                    'require_approval': bool,
                    'enable_tracking': bool
                }
            }

        Returns:
            {
                'status': 'success|failed',
                'document': Dict,
                'file_url': str,
                'metadata': Dict,
                'recommendations': List[str]
            }
        """
        document_type = params.get('document_type', 'report')
        template_id = params.get('template_id')
        data = params.get('data', {})
        output_format = params.get('format', 'pdf')
        options = params.get('options', {})

        self.logger.info(f"Generating {document_type} document in {output_format} format")

        # Mock generated document
        document = {
            'id': 'DOC-2025-001234',
            'type': document_type,
            'title': 'Q4 2025 Business Performance Report',
            'template_id': template_id or 'TPL-REPORT-001',
            'template_name': 'Executive Report Template',
            'created_date': '2025-11-16',
            'created_by': 'EMP-123',
            'author': 'John Smith',
            'status': 'draft',
            'version': '1.0',
            'format': output_format,
            'file_size_kb': 2456,
            'page_count': 24,
            'sections': [
                {
                    'number': 1,
                    'title': 'Executive Summary',
                    'pages': '1-2',
                    'auto_generated': True,
                    'content_preview': 'Q4 showed strong performance with 23% revenue growth...'
                },
                {
                    'number': 2,
                    'title': 'Financial Overview',
                    'pages': '3-8',
                    'auto_generated': True,
                    'includes': ['revenue_chart', 'expense_breakdown', 'profit_margin_trends']
                },
                {
                    'number': 3,
                    'title': 'Sales Performance',
                    'pages': '9-14',
                    'auto_generated': True,
                    'includes': ['sales_by_region', 'top_customers', 'pipeline_analysis']
                },
                {
                    'number': 4,
                    'title': 'Operational Metrics',
                    'pages': '15-20',
                    'auto_generated': True,
                    'includes': ['efficiency_metrics', 'team_performance', 'project_status']
                },
                {
                    'number': 5,
                    'title': 'Recommendations',
                    'pages': '21-23',
                    'auto_generated': True
                },
                {
                    'number': 6,
                    'title': 'Appendix',
                    'pages': '24',
                    'auto_generated': False
                }
            ],
            'metadata': {
                'company': 'Acme Corporation',
                'fiscal_period': 'Q4 2025',
                'department': 'Executive',
                'confidentiality': 'Internal Use Only',
                'expiration_date': '2026-01-31'
            },
            'branding': {
                'logo_included': True,
                'color_scheme': 'corporate',
                'fonts': ['Arial', 'Calibri'],
                'header': True,
                'footer': True,
                'page_numbers': True
            },
            'features': {
                'table_of_contents': options.get('include_toc', True),
                'watermark': options.get('add_watermark', False),
                'digital_signature': False,
                'tracked_changes': options.get('enable_tracking', False)
            }
        }

        # Mock templates available
        templates = [
            {
                'id': 'TPL-PROPOSAL-001',
                'name': 'Sales Proposal Template',
                'type': 'proposal',
                'description': 'Standard sales proposal with pricing',
                'sections': 7,
                'variables': 23,
                'last_updated': '2025-09-15',
                'usage_count': 145
            },
            {
                'id': 'TPL-CONTRACT-001',
                'name': 'Service Agreement Template',
                'type': 'contract',
                'description': 'Master service agreement template',
                'sections': 12,
                'variables': 45,
                'last_updated': '2025-10-01',
                'usage_count': 89,
                'legal_review_required': True
            },
            {
                'id': 'TPL-REPORT-001',
                'name': 'Executive Report Template',
                'type': 'report',
                'description': 'Quarterly executive report',
                'sections': 6,
                'variables': 34,
                'last_updated': '2025-08-20',
                'usage_count': 52
            },
            {
                'id': 'TPL-PRESENTATION-001',
                'name': 'Investor Pitch Deck',
                'type': 'presentation',
                'description': 'Standard investor presentation',
                'slides': 18,
                'variables': 28,
                'last_updated': '2025-11-01',
                'usage_count': 23
            }
        ]

        # Mock data fields populated
        populated_fields = {
            'total_fields': 34,
            'auto_populated': 28,
            'manually_entered': 6,
            'missing_fields': 0,
            'data_sources': [
                {'source': 'CRM Database', 'fields': 12},
                {'source': 'Accounting System', 'fields': 15},
                {'source': 'Manual Input', 'fields': 6},
                {'source': 'Analytics Platform', 'fields': 1}
            ]
        }

        # Mock generation statistics
        generation_stats = {
            'total_documents_generated': 1234,
            'documents_this_month': 89,
            'by_type': {
                'proposals': 345,
                'contracts': 234,
                'reports': 456,
                'presentations': 123,
                'invoices': 56,
                'memos': 20
            },
            'average_generation_time_seconds': 15,
            'time_saved_vs_manual_hours': 2340,
            'most_used_template': 'TPL-PROPOSAL-001',
            'approval_rate': 0.94,
            'revision_average': 1.8
        }

        # Mock compliance checks
        compliance_checks = {
            'brand_guidelines': 'passed',
            'legal_requirements': 'passed',
            'data_privacy': 'passed',
            'accessibility': 'passed',
            'version_control': 'active',
            'audit_trail': 'enabled',
            'issues_found': 0,
            'warnings': [
                'Document contains financial data - ensure proper access controls'
            ]
        }

        # Mock collaboration features
        collaboration = {
            'shared_with': [
                {'user': 'EMP-456', 'name': 'Sarah Johnson', 'role': 'Editor'},
                {'user': 'EMP-789', 'name': 'Mike Chen', 'role': 'Reviewer'}
            ],
            'comments': 3,
            'pending_approvals': 1,
            'version_history': [
                {
                    'version': '1.0',
                    'date': '2025-11-16 10:00:00',
                    'author': 'John Smith',
                    'changes': 'Initial generation'
                }
            ],
            'track_changes_enabled': options.get('enable_tracking', False)
        }

        return {
            'status': 'success',
            'document': document,
            'file_url': f'https://docs.company.com/documents/{document["id"]}.{output_format}',
            'download_url': f'https://docs.company.com/download/{document["id"]}',
            'preview_url': f'https://docs.company.com/preview/{document["id"]}',
            'templates': templates,
            'template_used': {
                'id': document['template_id'],
                'name': document['template_name']
            },
            'populated_fields': populated_fields,
            'generation_stats': generation_stats,
            'compliance_checks': compliance_checks,
            'collaboration': collaboration,
            'export_formats': ['pdf', 'docx', 'html', 'markdown'],
            'features_applied': {
                'auto_formatting': True,
                'spell_check': True,
                'grammar_check': True,
                'style_consistency': True,
                'data_validation': True,
                'chart_generation': True,
                'image_optimization': True
            },
            'next_actions': [
                {
                    'action': 'review',
                    'assignee': 'Sarah Johnson',
                    'due_date': '2025-11-18'
                },
                {
                    'action': 'approve',
                    'assignee': 'Mike Chen',
                    'due_date': '2025-11-20'
                },
                {
                    'action': 'finalize',
                    'assignee': 'John Smith',
                    'due_date': '2025-11-22'
                }
            ],
            'recommendations': [
                'Review auto-generated financial charts for accuracy',
                'Add custom analysis to Recommendations section',
                'Request approval from Mike Chen before distribution',
                'Consider adding executive summary infographic',
                'Schedule presentation of findings for Nov 25',
                'Set document expiration for Jan 31, 2026',
                'Enable version tracking for future revisions'
            ],
            'next_steps': [
                'Review generated content for accuracy',
                'Add any missing custom sections',
                'Request stakeholder reviews',
                'Incorporate feedback and revisions',
                'Obtain required approvals',
                'Finalize and distribute',
                'Archive in document management system'
            ]
        }

    def validate_params(self, params: Dict[str, Any]) -> bool:
        """Validate document generation parameters."""
        valid_document_types = [
            'proposal', 'contract', 'report',
            'presentation', 'invoice', 'memo'
        ]
        valid_formats = ['pdf', 'docx', 'html']

        document_type = params.get('document_type')
        if document_type and document_type not in valid_document_types:
            self.logger.error(f"Invalid document type: {document_type}")
            return False

        output_format = params.get('format')
        if output_format and output_format not in valid_formats:
            self.logger.error(f"Invalid format: {output_format}")
            return False

        return True
