// Omega Consistency Service
// Quantum-temporal correction execution

import { v4 as uuidv4 } from 'uuid';
import prisma from '@/shared/database/prisma';
import { logger } from '@/infrastructure/monitoring/logger';

export interface CorrectionRequest {
  reconciliationId: string;
  correctionMethod: string;
}

export interface CorrectionResult {
  eventId: string;
  correctionApplied: boolean;
  consistencyAfter: string;
}

export class OmegaConsistencyService {
  /**
   * Execute quantum-temporal correction
   */
  async executeCorrection(request: CorrectionRequest): Promise<CorrectionResult> {
    const reconciliation = await prisma.omegaReconciliation.findUnique({
      where: { reconciliationId: request.reconciliationId },
    });

    if (!reconciliation) {
      throw new Error(`Reconciliation not found: ${request.reconciliationId}`);
    }

    // Execute correction based on method
    let correctionApplied = false;
    let consistencyAfter = 'inconsistent';

    switch (request.correctionMethod) {
      case 'quantum_temporal_correction':
        correctionApplied = await this.executeQuantumTemporalCorrection(reconciliation);
        break;
      case 'realign_all_states':
        correctionApplied = await this.realignAllStates(reconciliation);
        break;
      default:
        correctionApplied = false;
    }

    if (correctionApplied) {
      consistencyAfter = 'corrected';

      // Update reconciliation
      await prisma.omegaReconciliation.update({
        where: { reconciliationId: request.reconciliationId },
        data: {
          status: 'corrected',
          correctionApplied: {
            method: request.correctionMethod,
            timestamp: new Date().toISOString(),
            success: true,
          },
        },
      });
    }

    // Create consistency event
    const eventId = `OMEGA-EVENT-${uuidv4()}`;
    await prisma.omegaConsistencyEvent.create({
      data: {
        eventId,
        reconciliationId: request.reconciliationId,
        eventType: 'correction_executed',
        eventData: {
          correctionMethod: request.correctionMethod,
          correctionApplied,
        },
        consistencyBefore: reconciliation.consistencyStatus || 'inconsistent',
        consistencyAfter,
        timestamp: new Date(),
      },
    });

    return {
      eventId,
      correctionApplied,
      consistencyAfter,
    };
  }

  /**
   * Execute quantum-temporal correction
   * if detect_inconsistency():
   *     execute_quantum-temporal_correction()
   *     realign_all_states()
   */
  private async executeQuantumTemporalCorrection(
    reconciliation: any
  ): Promise<boolean> {
    // Quantum-temporal correction algorithm
    // In production, would:
    // 1. Identify quantum state anomalies
    // 2. Apply temporal corrections
    // 3. Resolve entanglement breaks
    // 4. Align causality boundaries

    // For now, simplified implementation
    const mergedState = reconciliation.mergedState as Record<string, unknown>;

    // Apply corrections to merged state
    if (mergedState && typeof mergedState === 'object') {
      mergedState.corrected = true;
      mergedState.correctionTimestamp = new Date().toISOString();
    }

    return true; // Correction applied
  }

  /**
   * Realign all states
   */
  private async realignAllStates(reconciliation: any): Promise<boolean> {
    // Realign all state layers to converge
    // In production, would:
    // 1. Recalculate quantum states
    // 2. Align parallel branches
    // 3. Synchronize temporal layers
    // 4. Converge holographic projections

    // Update merged state with realignment
    const mergedState = reconciliation.mergedState as Record<string, unknown>;
    if (mergedState && typeof mergedState === 'object') {
      mergedState.realigned = true;
      mergedState.realignmentTimestamp = new Date().toISOString();
    }

    return true; // Realignment complete
  }

  /**
   * Get consistency events for a reconciliation
   */
  async getConsistencyEvents(reconciliationId: string): Promise<Array<{
    eventId: string;
    eventType: string;
    consistencyBefore?: string;
    consistencyAfter?: string;
    timestamp: Date;
  }>> {
    const events = await prisma.omegaConsistencyEvent.findMany({
      where: { reconciliationId },
      orderBy: { timestamp: 'asc' },
    });

    return events.map((event) => ({
      eventId: event.eventId,
      eventType: event.eventType,
      consistencyBefore: event.consistencyBefore || undefined,
      consistencyAfter: event.consistencyAfter || undefined,
      timestamp: event.timestamp,
    }));
  }

  /**
   * Auto-detect and correct inconsistencies
   */
  async autoDetectAndCorrect(): Promise<number> {
    // Find all inconsistent reconciliations
    const inconsistentRecons = await prisma.omegaReconciliation.findMany({
      where: {
        status: 'inconsistent',
        inconsistencyDetected: true,
      },
    });

    let correctedCount = 0;

    for (const recon of inconsistentRecons) {
      try {
        const result = await this.executeCorrection({
          reconciliationId: recon.reconciliationId,
          correctionMethod: recon.correctionMethod || 'quantum_temporal_correction',
        });

        if (result.correctionApplied) {
          correctedCount++;
        }
      } catch (error) {
        logger.error('Failed to correct reconciliation', {
          reconciliationId: recon.reconciliationId,
          error: error instanceof Error ? error.message : 'Unknown error',
        });
      }
    }

    return correctedCount;
  }
}

