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import pandas as pd
import numpy as np
from datetime import datetime, timedelta
import json

class DisasterRecoveryManagement:
    def __init__(self):
        self.recovery_plans = {}
        self.backup_systems = {}
        self.recovery_procedures = {}
        self.testing_schedules = {}
        self.incident_tracking = {}
        self.recovery_metrics = {}
    
    def create_recovery_plan(self, plan_id, plan_config):
        """Crear plan de recuperación ante desastres"""
        self.recovery_plans[plan_id] = {
            'plan_id': plan_id,
            'name': plan_config['name'],
            'description': plan_config['description'],
            'scope': plan_config['scope'],
            'critical_systems': plan_config.get('critical_systems', []),
            'recovery_objectives': plan_config.get('recovery_objectives', {}),
            'recovery_strategies': plan_config.get('recovery_strategies', []),
            'backup_systems': plan_config.get('backup_systems', []),
            'recovery_procedures': plan_config.get('recovery_procedures', []),
            'communication_plan': plan_config.get('communication_plan', {}),
            'testing_schedule': plan_config.get('testing_schedule', {}),
            'status': 'draft',
            'created_date': datetime.now(),
            'last_updated': datetime.now()
        }
    
    def define_recovery_objectives(self, plan_id, objectives):
        """Definir objetivos de recuperación"""
        if plan_id not in self.recovery_plans:
            return False
        
        self.recovery_plans[plan_id]['recovery_objectives'] = {
            'rto': objectives.get('rto', 4),  # Recovery Time Objective (hours)
            'rpo': objectives.get('rpo', 1),  # Recovery Point Objective (hours)
            'mttr': objectives.get('mttr', 2),  # Mean Time To Recovery (hours)
            'availability_target': objectives.get('availability_target', 99.9),  # %
            'data_loss_tolerance': objectives.get('data_loss_tolerance', 0),  # hours
            'system_priority': objectives.get('system_priority', {}),
            'recovery_phases': objectives.get('recovery_phases', [])
        }
        
        return True
    
    def setup_backup_system(self, backup_id, backup_config):
        """Configurar sistema de backup"""
        self.backup_systems[backup_id] = {
            'backup_id': backup_id,
            'name': backup_config['name'],
            'type': backup_config['type'],
            'source_systems': backup_config['source_systems'],
            'destination': backup_config['destination'],
            'backup_frequency': backup_config['backup_frequency'],
            'retention_period': backup_config['retention_period'],
            'encryption': backup_config.get('encryption', True),
            'compression': backup_config.get('compression', True),
            'verification': backup_config.get('verification', True),
            'status': 'active',
            'last_backup': None,
            'backup_size': 0,
            'created_date': datetime.now()
        }
    
    def execute_backup(self, backup_id, backup_data):
        """Ejecutar backup"""
        if backup_id not in self.backup_systems:
            return False
        
        backup_system = self.backup_systems[backup_id]
        
        backup_execution = {
            'backup_id': backup_id,
            'execution_id': f"BACKUP-{len(backup_system.get('executions', [])) + 1}",
            'start_time': datetime.now(),
            'end_time': None,
            'status': 'in_progress',
            'backup_size': 0,
            'files_backed_up': 0,
            'success': False,
            'error_message': None
        }
        
        # Simular ejecución de backup
        if backup_system['status'] == 'active':
            backup_execution['status'] = 'completed'
            backup_execution['end_time'] = datetime.now()
            backup_execution['success'] = True
            backup_execution['backup_size'] = backup_data.get('backup_size', 1000000)  # 1GB
            backup_execution['files_backed_up'] = backup_data.get('files_backed_up', 1000)
        else:
            backup_execution['status'] = 'failed'
            backup_execution['end_time'] = datetime.now()
            backup_execution['error_message'] = 'Backup system inactive'
        
        # Actualizar sistema de backup
        if 'executions' not in backup_system:
            backup_system['executions'] = []
        
        backup_system['executions'].append(backup_execution)
        backup_system['last_backup'] = datetime.now()
        backup_system['backup_size'] = backup_execution['backup_size']
        
        return backup_execution['execution_id']
    
    def create_recovery_procedure(self, procedure_id, procedure_config):
        """Crear procedimiento de recuperación"""
        self.recovery_procedures[procedure_id] = {
            'procedure_id': procedure_id,
            'name': procedure_config['name'],
            'description': procedure_config['description'],
            'system_id': procedure_config['system_id'],
            'recovery_type': procedure_config['recovery_type'],
            'priority': procedure_config.get('priority', 'medium'),
            'estimated_duration': procedure_config.get('estimated_duration', 60),
            'prerequisites': procedure_config.get('prerequisites', []),
            'steps': procedure_config.get('steps', []),
            'success_criteria': procedure_config.get('success_criteria', []),
            'rollback_procedure': procedure_config.get('rollback_procedure', []),
            'dependencies': procedure_config.get('dependencies', []),
            'created_date': datetime.now()
        }
    
    def execute_recovery(self, recovery_id, recovery_data):
        """Ejecutar procedimiento de recuperación"""
        if recovery_id not in self.recovery_procedures:
            return False
        
        procedure = self.recovery_procedures[recovery_id]
        
        recovery_execution = {
            'execution_id': f"RECOVERY-{len(procedure.get('executions', [])) + 1}",
            'procedure_id': recovery_id,
            'start_time': datetime.now(),
            'end_time': None,
            'status': 'in_progress',
            'steps_completed': 0,
            'total_steps': len(procedure['steps']),
            'success': False,
            'error_message': None,
            'executed_by': recovery_data.get('executed_by', 'system'),
            'recovery_data': recovery_data
        }
        
        # Simular ejecución de recuperación
        try:
            # Ejecutar pasos del procedimiento
            for i, step in enumerate(procedure['steps']):
                recovery_execution['steps_completed'] = i + 1
                # Simular tiempo de ejecución
                time.sleep(0.1)  # En producción, esto sería tiempo real
            
            recovery_execution['status'] = 'completed'
            recovery_execution['end_time'] = datetime.now()
            recovery_execution['success'] = True
            
        except Exception as e:
            recovery_execution['status'] = 'failed'
            recovery_execution['end_time'] = datetime.now()
            recovery_execution['error_message'] = str(e)
        
        # Actualizar procedimiento
        if 'executions' not in procedure:
            procedure['executions'] = []
        
        procedure['executions'].append(recovery_execution)
        
        return recovery_execution['execution_id']
    
    def schedule_recovery_test(self, test_id, test_config):
        """Programar prueba de recuperación"""
        self.testing_schedules[test_id] = {
            'test_id': test_id,
            'name': test_config['name'],
            'description': test_config['description'],
            'plan_id': test_config['plan_id'],
            'test_type': test_config['test_type'],
            'scheduled_date': test_config['scheduled_date'],
            'duration_hours': test_config.get('duration_hours', 4),
            'test_scenarios': test_config.get('test_scenarios', []),
            'participants': test_config.get('participants', []),
            'success_criteria': test_config.get('success_criteria', []),
            'status': 'scheduled',
            'results': {},
            'created_date': datetime.now()
        }
    
    def conduct_recovery_test(self, test_id, test_data):
        """Realizar prueba de recuperación"""
        if test_id not in self.testing_schedules:
            return False
        
        test = self.testing_schedules[test_id]
        
        test['status'] = 'in_progress'
        test['start_time'] = datetime.now()
        
        # Simular ejecución de prueba
        test_results = {
            'test_id': test_id,
            'start_time': test['start_time'],
            'end_time': test['start_time'] + timedelta(hours=test['duration_hours']),
            'scenarios_tested': len(test_data.get('scenarios_tested', [])),
            'scenarios_passed': len(test_data.get('scenarios_passed', [])),
            'scenarios_failed': len(test_data.get('scenarios_failed', [])),
            'rto_achieved': test_data.get('rto_achieved', False),
            'rpo_achieved': test_data.get('rpo_achieved', False),
            'systems_recovered': test_data.get('systems_recovered', []),
            'data_integrity_verified': test_data.get('data_integrity_verified', False),
            'issues_identified': test_data.get('issues_identified', []),
            'recommendations': test_data.get('recommendations', []),
            'overall_success': test_data.get('overall_success', False)
        }
        
        # Calcular métricas
        total_scenarios = test_results['scenarios_tested']
        if total_scenarios > 0:
            test_results['success_rate'] = (test_results['scenarios_passed'] / total_scenarios * 100)
        else:
            test_results['success_rate'] = 0
        
        test['results'] = test_results
        test['status'] = 'completed'
        test['end_time'] = test_results['end_time']
        
        return True
    
    def calculate_recovery_metrics(self, plan_id):
        """Calcular métricas de recuperación"""
        if plan_id not in self.recovery_plans:
            return None
        
        plan = self.recovery_plans[plan_id]
        
        # Obtener procedimientos de recuperación del plan
        plan_procedures = [p for p in self.recovery_procedures.values() if p['procedure_id'] in plan.get('recovery_procedures', [])]
        
        # Obtener pruebas del plan
        plan_tests = [t for t in self.testing_schedules.values() if t['plan_id'] == plan_id]
        
        # Calcular métricas
        total_procedures = len(plan_procedures)
        total_tests = len(plan_tests)
        successful_tests = len([t for t in plan_tests if t.get('results', {}).get('overall_success', False)])
        
        # Calcular RTO y RPO promedio
        rto_achieved = len([t for t in plan_tests if t.get('results', {}).get('rto_achieved', False)])
        rpo_achieved = len([t for t in plan_tests if t.get('results', {}).get('rpo_achieved', False)])
        
        # Calcular score de madurez
        maturity_score = self.calculate_maturity_score(plan, plan_procedures, plan_tests)
        
        metrics = {
            'plan_id': plan_id,
            'total_procedures': total_procedures,
            'total_tests': total_tests,
            'successful_tests': successful_tests,
            'test_success_rate': (successful_tests / total_tests * 100) if total_tests > 0 else 0,
            'rto_achievement_rate': (rto_achieved / total_tests * 100) if total_tests > 0 else 0,
            'rpo_achievement_rate': (rpo_achieved / total_tests * 100) if total_tests > 0 else 0,
            'maturity_score': maturity_score,
            'last_test_date': max([t['scheduled_date'] for t in plan_tests]) if plan_tests else None
        }
        
        return metrics
    
    def calculate_maturity_score(self, plan, procedures, tests):
        """Calcular score de madurez del plan"""
        score = 0
        
        # Factor de completitud del plan
        if plan.get('recovery_objectives'):
            score += 20
        if plan.get('recovery_strategies'):
            score += 15
        if plan.get('backup_systems'):
            score += 15
        if plan.get('recovery_procedures'):
            score += 15
        if plan.get('communication_plan'):
            score += 10
        
        # Factor de procedimientos
        if procedures:
            score += 15
        
        # Factor de pruebas
        if tests:
            successful_tests = len([t for t in tests if t.get('results', {}).get('overall_success', False)])
            if successful_tests > 0:
                score += 10
        
        return min(score, 100)
    
    def generate_recovery_report(self, plan_id):
        """Generar reporte de recuperación"""
        if plan_id not in self.recovery_plans:
            return None
        
        plan = self.recovery_plans[plan_id]
        metrics = self.calculate_recovery_metrics(plan_id)
        
        if not metrics:
            return None
        
        # Obtener procedimientos del plan
        plan_procedures = [p for p in self.recovery_procedures.values() if p['procedure_id'] in plan.get('recovery_procedures', [])]
        
        # Obtener pruebas recientes
        recent_tests = [t for t in self.testing_schedules.values() if t['plan_id'] == plan_id and t['scheduled_date'] >= datetime.now() - timedelta(days=90)]
        
        # Generar recomendaciones
        recommendations = self.generate_recovery_recommendations(plan, metrics, recent_tests)
        
        report = {
            'plan_id': plan_id,
            'plan_name': plan['name'],
            'report_date': datetime.now(),
            'plan_status': plan['status'],
            'recovery_objectives': plan.get('recovery_objectives', {}),
            'metrics': metrics,
            'procedures_count': len(plan_procedures),
            'recent_tests_count': len(recent_tests),
            'recommendations': recommendations,
            'next_steps': self.generate_next_steps(recommendations)
        }
        
        return report
    
    def generate_recovery_recommendations(self, plan, metrics, recent_tests):
        """Generar recomendaciones de recuperación"""
        recommendations = []
        
        # Recomendaciones basadas en métricas
        if metrics['test_success_rate'] < 80:
            recommendations.append({
                'type': 'testing_improvement',
                'priority': 'high',
                'description': f"Mejorar tasa de éxito de pruebas ({metrics['test_success_rate']:.1f}%)",
                'action': 'Review and improve recovery procedures based on test failures'
            })
        
        if metrics['rto_achievement_rate'] < 90:
            recommendations.append({
                'type': 'rto_improvement',
                'priority': 'high',
                'description': f"Mejorar logro de RTO ({metrics['rto_achievement_rate']:.1f}%)",
                'action': 'Optimize recovery procedures to meet RTO objectives'
            })
        
        if metrics['rpo_achievement_rate'] < 90:
            recommendations.append({
                'type': 'rpo_improvement',
                'priority': 'high',
                'description': f"Mejorar logro de RPO ({metrics['rpo_achievement_rate']:.1f}%)",
                'action': 'Improve backup frequency and data replication'
            })
        
        if metrics['maturity_score'] < 70:
            recommendations.append({
                'type': 'plan_maturity',
                'priority': 'medium',
                'description': f"Mejorar madurez del plan ({metrics['maturity_score']}/100)",
                'action': 'Complete missing plan components and improve documentation'
            })
        
        # Recomendaciones basadas en pruebas recientes
        if recent_tests:
            failed_tests = [t for t in recent_tests if not t.get('results', {}).get('overall_success', False)]
            if failed_tests:
                recommendations.append({
                    'type': 'test_failures',
                    'priority': 'high',
                    'description': f"Abordar {len(failed_tests)} pruebas fallidas recientes",
                    'action': 'Investigate and fix issues identified in failed tests'
                })
        
        return recommendations
    
    def generate_next_steps(self, recommendations):
        """Generar próximos pasos basados en recomendaciones"""
        next_steps = []
        
        high_priority = [r for r in recommendations if r['priority'] == 'high']
        medium_priority = [r for r in recommendations if r['priority'] == 'medium']
        
        if high_priority:
            next_steps.append({
                'timeline': 'Immediate',
                'actions': [r['action'] for r in high_priority],
                'priority': 'High'
            })
        
        if medium_priority:
            next_steps.append({
                'timeline': 'Within 1 month',
                'actions': [r['action'] for r in medium_priority],
                'priority': 'Medium'
            })
        
        return next_steps

# Ejemplo de uso
recovery_mgmt = DisasterRecoveryManagement()

# Crear plan de recuperación
recovery_mgmt.create_recovery_plan('PLAN-001', {
    'name': 'Disaster Recovery Plan 2025',
    'description': 'Plan de recuperación ante desastres para 2025',
    'scope': 'organization_wide',
    'critical_systems': ['Order Processing', 'Customer Database', 'Payment System'],
    'recovery_strategies': ['Backup and Restore', 'Failover', 'Cloud Recovery'],
    'backup_systems': ['BACKUP-001', 'BACKUP-002'],
    'recovery_procedures': ['PROC-001', 'PROC-002']
})

# Definir objetivos de recuperación
recovery_mgmt.define_recovery_objectives('PLAN-001', {
    'rto': 4,  # 4 horas
    'rpo': 1,  # 1 hora
    'mttr': 2,  # 2 horas
    'availability_target': 99.9,
    'data_loss_tolerance': 0
})

# Configurar sistema de backup
recovery_mgmt.setup_backup_system('BACKUP-001', {
    'name': 'Primary Backup System',
    'type': 'incremental',
    'source_systems': ['Order Processing', 'Customer Database'],
    'destination': 'Cloud Storage',
    'backup_frequency': 'daily',
    'retention_period': 30,
    'encryption': True,
    'compression': True
})

# Crear procedimiento de recuperación
recovery_mgmt.create_recovery_procedure('PROC-001', {
    'name': 'Order Processing Recovery',
    'description': 'Recuperación del sistema de procesamiento de pedidos',
    'system_id': 'Order Processing',
    'recovery_type': 'full_restore',
    'priority': 'high',
    'estimated_duration': 120,
    'steps': [
        'Stop primary system',
        'Restore from backup',
        'Verify data integrity',
        'Start system services',
        'Validate functionality'
    ],
    'success_criteria': ['System operational', 'Data integrity verified', 'All services running']
})

# Programar prueba de recuperación
test_id = recovery_mgmt.schedule_recovery_test('TEST-001', {
    'name': 'Q1 Recovery Test',
    'description': 'Prueba de recuperación Q1 2025',
    'plan_id': 'PLAN-001',
    'test_type': 'full_recovery',
    'scheduled_date': datetime.now() + timedelta(days=30),
    'duration_hours': 4,
    'test_scenarios': ['System failure', 'Data corruption', 'Network outage'],
    'participants': ['IT Team', 'Security Team', 'Business Team']
})

# Generar reporte
report = recovery_mgmt.generate_recovery_report('PLAN-001')
print(f"Reporte de recuperación: {report['plan_name']}")
print(f"Score de madurez: {report['metrics']['maturity_score']}")
print(f"Recomendaciones: {len(report['recommendations'])}")

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class BackupManagement:
    def __init__(self):
        self.backup_jobs = {}
        self.backup_storage = {}
        self.retention_policies = {}
        self.verification_results = {}
    
    def create_backup_job(self, job_id, job_config):
        """Crear trabajo de backup"""
        self.backup_jobs[job_id] = {
            'job_id': job_id,
            'name': job_config['name'],
            'source_paths': job_config['source_paths'],
            'destination': job_config['destination'],
            'backup_type': job_config['backup_type'],
            'schedule': job_config['schedule'],
            'retention_policy': job_config.get('retention_policy'),
            'encryption': job_config.get('encryption', True),
            'compression': job_config.get('compression', True),
            'verification': job_config.get('verification', True),
            'status': 'active',
            'last_run': None,
            'next_run': None,
            'created_date': datetime.now()
        }
    
    def execute_backup_job(self, job_id, execution_data):
        """Ejecutar trabajo de backup"""
        if job_id not in self.backup_jobs:
            return False
        
        job = self.backup_jobs[job_id]
        
        execution = {
            'execution_id': f"EXEC-{len(job.get('executions', [])) + 1}",
            'job_id': job_id,
            'start_time': datetime.now(),
            'end_time': None,
            'status': 'running',
            'files_processed': 0,
            'files_backed_up': 0,
            'backup_size': 0,
            'success': False,
            'error_message': None
        }
        
        # Simular ejecución de backup
        try:
            # Simular procesamiento de archivos
            execution['files_processed'] = execution_data.get('files_processed', 1000)
            execution['files_backed_up'] = execution_data.get('files_backed_up', 950)
            execution['backup_size'] = execution_data.get('backup_size', 500000000)  # 500MB
            
            execution['status'] = 'completed'
            execution['end_time'] = datetime.now()
            execution['success'] = True
            
        except Exception as e:
            execution['status'] = 'failed'
            execution['end_time'] = datetime.now()
            execution['error_message'] = str(e)
        
        # Actualizar trabajo
        if 'executions' not in job:
            job['executions'] = []
        
        job['executions'].append(execution)
        job['last_run'] = execution['start_time']
        
        return execution['execution_id']
    
    def verify_backup(self, job_id, execution_id):
        """Verificar backup"""
        if job_id not in self.backup_jobs:
            return False
        
        job = self.backup_jobs[job_id]
        
        # Buscar ejecución
        execution = None
        for exec in job.get('executions', []):
            if exec['execution_id'] == execution_id:
                execution = exec
                break
        
        if not execution:
            return False
        
        verification = {
            'verification_id': f"VERIFY-{len(self.verification_results) + 1}",
            'execution_id': execution_id,
            'job_id': job_id,
            'verification_date': datetime.now(),
            'verification_type': 'integrity_check',
            'files_verified': 0,
            'files_corrupted': 0,
            'verification_success': False,
            'error_message': None
        }
        
        # Simular verificación
        if execution['success']:
            verification['files_verified'] = execution['files_backed_up']
            verification['verification_success'] = True
        else:
            verification['error_message'] = 'Backup execution failed'
        
        self.verification_results[verification['verification_id']] = verification
        
        return verification['verification_id']
    
    def apply_retention_policy(self, job_id):
        """Aplicar política de retención"""
        if job_id not in self.backup_jobs:
            return False
        
        job = self.backup_jobs[job_id]
        
        if not job.get('retention_policy'):
            return False
        
        retention_days = job['retention_policy']
        cutoff_date = datetime.now() - timedelta(days=retention_days)
        
        # Simular eliminación de backups antiguos
        old_executions = [exec for exec in job.get('executions', []) if exec['start_time'] < cutoff_date]
        
        for exec in old_executions:
            exec['status'] = 'deleted'
            exec['deletion_date'] = datetime.now()
        
        return len(old_executions)
    
    def generate_backup_report(self, job_id):
        """Generar reporte de backup"""
        if job_id not in self.backup_jobs:
            return None
        
        job = self.backup_jobs[job_id]
        executions = job.get('executions', [])
        
        if not executions:
            return None
        
        # Calcular métricas
        total_executions = len(executions)
        successful_executions = len([e for e in executions if e['success']])
        failed_executions = len([e for e in executions if not e['success']])
        
        total_files = sum(e['files_backed_up'] for e in executions)
        total_size = sum(e['backup_size'] for e in executions)
        
        # Calcular tendencias
        recent_executions = [e for e in executions if e['start_time'] >= datetime.now() - timedelta(days=30)]
        recent_success_rate = (len([e for e in recent_executions if e['success']]) / len(recent_executions) * 100) if recent_executions else 0
        
        report = {
            'job_id': job_id,
            'job_name': job['name'],
            'report_date': datetime.now(),
            'total_executions': total_executions,
            'successful_executions': successful_executions,
            'failed_executions': failed_executions,
            'success_rate': (successful_executions / total_executions * 100) if total_executions > 0 else 0,
            'total_files_backed_up': total_files,
            'total_backup_size': total_size,
            'recent_success_rate': recent_success_rate,
            'last_backup': job['last_run'],
            'next_backup': job['next_run']
        }
        
        return report

# Ejemplo de uso
backup_mgmt = BackupManagement()

# Crear trabajo de backup
backup_mgmt.create_backup_job('JOB-001', {
    'name': 'Daily Database Backup',
    'source_paths': ['/var/lib/mysql', '/var/log/mysql'],
    'destination': 's3://backup-bucket/database/',
    'backup_type': 'incremental',
    'schedule': 'daily',
    'retention_policy': 30,
    'encryption': True,
    'compression': True,
    'verification': True
})

# Ejecutar backup
execution_id = backup_mgmt.execute_backup_job('JOB-001', {
    'files_processed': 1000,
    'files_backed_up': 950,
    'backup_size': 500000000
})

# Verificar backup
verification_id = backup_mgmt.verify_backup('JOB-001', execution_id)

# Generar reporte
report = backup_mgmt.generate_backup_report('JOB-001')
print(f"Reporte de backup: {report['job_name']}")
print(f"Tasa de éxito: {report['success_rate']:.1f}%")
print(f"Archivos respaldados: {report['total_files_backed_up']}")