"""
Performance Review Generator Agent

Generates performance reviews using data-driven insights, goal tracking,
and AI-powered feedback synthesis.
"""

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


class PerformanceReviewGeneratorAgent(BaseAgent):
    """
    Generates employee performance reviews.

    Features:
    - Data-driven insights
    - Goal progress tracking
    - Competency assessment
    - Feedback synthesis
    - Development planning
    - Rating calibration
    """

    def __init__(self):
        super().__init__(
            name='performance-review-generator',
            description='Generate data-driven performance reviews',
            category='business',
            version='1.0.0',
            tags=['hr', 'performance', 'reviews', 'feedback', 'development']
        )

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

        Args:
            params: {
                'employee_id': str,
                'review_period': Dict,
                'review_type': 'annual|mid_year|quarterly|probation',
                'include_360_feedback': bool,
                'options': {
                    'generate_summary': bool,
                    'suggest_rating': bool,
                    'create_development_plan': bool,
                    'compare_to_peers': bool
                }
            }

        Returns:
            {
                'status': 'success|failed',
                'review': Dict,
                'performance_data': Dict,
                'recommendations': List[str]
            }
        """
        employee_id = params.get('employee_id')
        review_type = params.get('review_type', 'annual')
        include_360 = params.get('include_360_feedback', False)
        options = params.get('options', {})

        self.logger.info(f"Generating {review_type} performance review")

        # Mock employee data
        employee = {
            'id': employee_id or 'EMP-123',
            'name': 'Sarah Chen',
            'role': 'Senior Software Engineer',
            'department': 'Engineering',
            'manager': 'John Williams',
            'hire_date': '2022-03-15',
            'tenure_years': 2.7,
            'review_period': 'January 1, 2025 - December 31, 2025',
            'previous_rating': 'Exceeds Expectations',
            'current_level': 'Senior',
            'salary': 145000
        }

        # Mock performance data
        performance_data = {
            'goals_achievement': {
                'total_goals': 8,
                'completed': 7,
                'in_progress': 1,
                'completion_rate': 0.875,
                'goals': [
                    {
                        'goal': 'Lead migration to microservices architecture',
                        'status': 'completed',
                        'completion': 100,
                        'impact': 'high',
                        'notes': 'Successfully led team of 5, delivered 2 weeks early'
                    },
                    {
                        'goal': 'Mentor 2 junior engineers',
                        'status': 'completed',
                        'completion': 100,
                        'impact': 'high',
                        'notes': 'Both mentees promoted to mid-level'
                    },
                    {
                        'goal': 'Reduce system latency by 30%',
                        'status': 'completed',
                        'completion': 100,
                        'impact': 'very_high',
                        'notes': 'Achieved 42% reduction, exceeded target'
                    },
                    {
                        'goal': 'Complete AWS certification',
                        'status': 'completed',
                        'completion': 100,
                        'impact': 'medium',
                        'notes': 'Passed Solutions Architect Professional'
                    },
                    {
                        'goal': 'Improve code review turnaround time',
                        'status': 'completed',
                        'completion': 100,
                        'impact': 'medium',
                        'notes': 'Reduced from 2 days to 6 hours average'
                    },
                    {
                        'goal': 'Present at tech conference',
                        'status': 'in_progress',
                        'completion': 70,
                        'impact': 'medium',
                        'notes': 'Submitted talks, pending acceptance'
                    }
                ]
            },
            'competencies': [
                {
                    'competency': 'Technical Expertise',
                    'rating': 5,
                    'weight': 0.30,
                    'evidence': [
                        'Led complex architecture migration',
                        'Resolved critical production issues',
                        'Obtained advanced AWS certification'
                    ]
                },
                {
                    'competency': 'Leadership & Influence',
                    'rating': 5,
                    'weight': 0.20,
                    'evidence': [
                        'Successfully led cross-functional team',
                        'Mentored junior engineers to promotion',
                        'Driving adoption of best practices'
                    ]
                },
                {
                    'competency': 'Communication',
                    'rating': 4,
                    'weight': 0.15,
                    'evidence': [
                        'Clear technical documentation',
                        'Effective stakeholder updates',
                        'Active in team discussions'
                    ]
                },
                {
                    'competency': 'Problem Solving',
                    'rating': 5,
                    'weight': 0.20,
                    'evidence': [
                        'Innovative solutions to latency issues',
                        'Proactive issue identification',
                        'Data-driven decision making'
                    ]
                },
                {
                    'competency': 'Collaboration',
                    'rating': 4,
                    'weight': 0.15,
                    'evidence': [
                        'Works well across teams',
                        'Helpful in code reviews',
                        'Positive team feedback'
                    ]
                }
            ],
            'weighted_competency_score': 4.7,
            'productivity_metrics': {
                'commits': 845,
                'pull_requests': 234,
                'code_reviews': 456,
                'bugs_fixed': 123,
                'features_shipped': 18,
                'lines_of_code': 45230,
                'test_coverage_contribution': 0.12
            }
        }

        # Mock 360 feedback
        feedback_360 = {
            'manager_feedback': {
                'strengths': [
                    'Exceptional technical skills',
                    'Strong leadership in migration project',
                    'Excellent mentor to junior team members',
                    'Proactive problem solver'
                ],
                'areas_for_development': [
                    'Could improve delegation skills',
                    'Occasionally takes on too much work'
                ],
                'overall_assessment': 'Outstanding performer, ready for principal engineer role'
            },
            'peer_feedback': [
                {
                    'peer': 'Anonymous Engineer 1',
                    'strengths': 'Always willing to help, great code reviews',
                    'improvements': 'Sometimes over-engineers solutions'
                },
                {
                    'peer': 'Anonymous Engineer 2',
                    'strengths': 'Technical expert, clear communicator',
                    'improvements': 'Could be more patient with less experienced team members'
                },
                {
                    'peer': 'Anonymous Engineer 3',
                    'strengths': 'Innovative thinker, drives quality',
                    'improvements': 'Could share knowledge more proactively'
                }
            ],
            'direct_report_feedback': [
                {
                    'report': 'Anonymous Junior Engineer 1',
                    'strengths': 'Best mentor I\'ve had, very supportive',
                    'improvements': 'Could provide more structured learning path'
                },
                {
                    'report': 'Anonymous Junior Engineer 2',
                    'strengths': 'Patient teacher, great at explaining concepts',
                    'improvements': 'Sometimes too busy to have regular 1:1s'
                }
            ],
            'self_assessment': {
                'achievements': [
                    'Successfully led critical migration project',
                    'Significantly improved system performance',
                    'Developed strong mentorship relationships'
                ],
                'challenges': [
                    'Balancing individual contribution with leadership',
                    'Time management with multiple responsibilities'
                ],
                'career_goals': [
                    'Advance to Principal Engineer',
                    'Lead larger, more strategic initiatives',
                    'Develop thought leadership in architecture'
                ]
            }
        }

        # Mock suggested rating
        suggested_rating = {
            'overall_rating': 'Exceeds Expectations',
            'rating_scale': '1-5 (1=Needs Improvement, 5=Exceptional)',
            'numerical_score': 4.7,
            'confidence': 0.92,
            'rating_factors': {
                'goals_achievement': 4.8,
                'competencies': 4.7,
                'impact': 5.0,
                'growth': 4.5
            },
            'peer_comparison': {
                'percentile': 85,
                'compared_to': 'Senior Engineers (n=12)',
                'ranking': 'Top 15%'
            },
            'calibration_notes': 'Strong candidate for promotion consideration'
        }

        # Mock development plan
        development_plan = {
            'strengths_to_leverage': [
                'Technical expertise - lead architecture discussions',
                'Mentorship - scale through team training programs',
                'Problem solving - tackle strategic challenges'
            ],
            'development_areas': [
                {
                    'area': 'Delegation & Empowerment',
                    'goal': 'Empower team members to own larger initiatives',
                    'actions': [
                        'Identify 2-3 projects to delegate',
                        'Provide guidance without micromanaging',
                        'Build trust in team capabilities'
                    ],
                    'timeline': '6 months'
                },
                {
                    'area': 'Strategic Thinking',
                    'goal': 'Develop long-term technical strategy skills',
                    'actions': [
                        'Participate in architecture review board',
                        'Present quarterly technology roadmap',
                        'Attend leadership training'
                    ],
                    'timeline': '12 months'
                },
                {
                    'area': 'Communication & Influence',
                    'goal': 'Enhance executive communication skills',
                    'actions': [
                        'Present to executive team quarterly',
                        'Write technical blog posts',
                        'Speak at industry conference'
                    ],
                    'timeline': '12 months'
                }
            ],
            'career_path': {
                'current_level': 'Senior Engineer',
                'next_level': 'Principal Engineer',
                'readiness': 'Ready in 12-18 months',
                'gaps': ['Strategic leadership', 'Executive communication'],
                'recommended_timeline': 'Promote in 2026'
            },
            'training_recommendations': [
                'Executive Leadership Program',
                'Advanced System Design Course',
                'Public Speaking Workshop'
            ]
        }

        # Mock review summary
        review_summary = {
            'generated_summary': '''
Sarah has had an exceptional year, demonstrating outstanding technical expertise and emerging leadership capabilities. She successfully led the critical microservices migration project, delivering ahead of schedule and significantly improving system performance (42% latency reduction, exceeding the 30% target).

Her technical contributions have been substantial, with 845 commits and 18 features shipped. She has been instrumental in maintaining code quality through thorough reviews (456 code reviews) and has contributed significantly to our test coverage.

Beyond individual contribution, Sarah has shown strong leadership through mentoring two junior engineers who were both promoted to mid-level roles. Her ability to balance technical excellence with people development demonstrates readiness for more senior technical leadership roles.

Areas for growth include delegation skills and strategic thinking. As she progresses toward principal engineer, she should focus on empowering others to own larger initiatives and developing long-term technical strategy capabilities.

Overall, Sarah is performing at an "Exceeds Expectations" level and is on track for promotion to Principal Engineer within 12-18 months.
            '''.strip(),
            'key_accomplishments': [
                'Led microservices migration (5 person team, delivered early)',
                'Exceeded performance goals (42% latency reduction vs 30% target)',
                'Mentored 2 engineers to promotion',
                'Obtained AWS Solutions Architect Professional certification',
                'Shipped 18 features with high quality'
            ],
            'impact_highlights': [
                'System performance: Very High Impact',
                'Team development: High Impact',
                'Code quality: High Impact',
                'Technical leadership: High Impact'
            ]
        }

        # Mock compensation recommendation
        compensation_recommendation = {
            'current_salary': 145000,
            'market_analysis': {
                'market_median': 148000,
                'company_range': '135000-165000',
                'position_in_range': 'Mid-range'
            },
            'recommended_adjustment': {
                'type': 'merit_increase',
                'amount': 14500,
                'percentage': 0.10,
                'new_salary': 159500,
                'effective_date': '2026-01-01',
                'rationale': 'Top performer, exceeded goals, approaching promotion'
            },
            'bonus_recommendation': {
                'target_bonus': 0.15,
                'recommended_multiplier': 1.5,
                'bonus_amount': 32625,
                'rationale': 'Exceptional performance, high business impact'
            }
        }

        return {
            'status': 'success',
            'employee': employee,
            'review_type': review_type,
            'performance_data': performance_data,
            'feedback_360': feedback_360 if include_360 else None,
            'suggested_rating': suggested_rating if options.get('suggest_rating') else None,
            'development_plan': development_plan if options.get('create_development_plan') else None,
            'review_summary': review_summary if options.get('generate_summary') else None,
            'compensation_recommendation': compensation_recommendation,
            'metrics': {
                'reviews_completed_this_cycle': 45,
                'reviews_pending': 12,
                'average_rating': 3.8,
                'rating_distribution': {
                    'exceptional': 8,
                    'exceeds_expectations': 15,
                    'meets_expectations': 18,
                    'needs_improvement': 4
                },
                'promotion_recommendations': 6,
                'pip_recommendations': 2
            },
            'recommendations': [
                'Promote to Principal Engineer in 12-18 months',
                'Provide leadership development opportunities',
                'Assign strategic architecture projects',
                'Recommend for 10% merit increase + 1.5x bonus',
                'Include in succession planning for senior leadership',
                'Support conference speaking opportunities',
                'Facilitate cross-team collaboration opportunities'
            ],
            'next_steps': [
                'Schedule review discussion with employee',
                'Share development plan and career path',
                'Submit compensation recommendation to HR',
                'Enroll in leadership development program',
                'Assign strategic project for Q1 2026',
                'Schedule follow-up check-in in 3 months',
                'Document review in HRIS system'
            ]
        }

    def validate_params(self, params: Dict[str, Any]) -> bool:
        """Validate performance review parameters."""
        valid_review_types = ['annual', 'mid_year', 'quarterly', 'probation']

        review_type = params.get('review_type')
        if review_type and review_type not in valid_review_types:
            self.logger.error(f"Invalid review type: {review_type}")
            return False

        return True
