// Multiverse Consistency Service
// Consistency validation: MDXState + PrimeState + ParallelState → Ω-Merge
// Supplement B: MetaverseDubai Integration Framework

import prisma from '@/shared/database/prisma';
import { v4 as uuidv4 } from 'uuid';
import { logger } from '@/infrastructure/monitoring/logger';
import { omegaLayerService } from '@/core/settlement/omega/omega-layer.service';
import { omegaConsistencyService } from '@/core/settlement/omega/omega-consistency.service';


export interface MultiverseConsistencyRequest {
  dsezId: string;
  mdxState?: Record<string, unknown>; // MetaverseDubai state
  primeState?: Record<string, unknown>; // DBIS Prime state
  parallelState?: Record<string, unknown>; // Parallel state
}

export interface MultiverseConsistencyResult {
  checkId: string;
  consistencyStatus: string;
  identityCoherence: boolean;
  assetRealityMapping: boolean;
  omegaValidation: boolean;
  mergedState?: Record<string, unknown>;
}

export class MultiverseConsistencyService {
  /**
   * Perform multiverse consistency check
   * Formula: MDXState + PrimeState + ParallelState → Ω-Merge
   */
  async performConsistencyCheck(
    request: MultiverseConsistencyRequest
  ): Promise<MultiverseConsistencyResult> {
    logger.info('Multiverse Consistency: Performing consistency check', {
      request,
    });

    // Step 1: Verify D-SEZ exists
    const dsez = await prisma.digitalSovereignEconomicZone.findUnique({
      where: { dsezId: request.dsezId },
    });

    if (!dsez) {
      throw new Error(`D-SEZ not found: ${request.dsezId}`);
    }

    // Step 2: Perform identity coherence check
    const identityCoherence = await this.checkIdentityCoherence(request);

    // Step 3: Perform asset reality mapping
    const assetRealityMapping = await this.checkAssetRealityMapping(request);

    // Step 4: Perform Ω-Layer consistency validation
    const omegaValidation = await this.performOmegaValidation(request);

    // Step 5: Merge states using Ω-Layer
    const mergeResult = await omegaLayerService.mergeStates({
      primeState: request.primeState,
      parallelState: request.parallelState,
    });

    // Step 6: Create consistency check record
    const checkId = `CONSISTENCY-${uuidv4()}`;
    const consistencyStatus =
      identityCoherence && assetRealityMapping && omegaValidation
        ? 'consistent'
        : 'inconsistent';

    await prisma.metaverseConsistencyCheck.create({
      data: {
        checkId,
        dsezId: request.dsezId,
        mdxState: request.mdxState || {},
        primeState: request.primeState || {},
        parallelState: request.parallelState || {},
        mergedState: mergeResult.mergedState,
        consistencyStatus,
        identityCoherence,
        assetRealityMapping,
        omegaValidation,
        checkedAt: new Date(),
      },
    });

    logger.info('Multiverse Consistency: Consistency check completed', {
      checkId,
      consistencyStatus,
    });

    return {
      checkId,
      consistencyStatus,
      identityCoherence,
      assetRealityMapping,
      omegaValidation,
      mergedState: mergeResult.mergedState,
    };
  }

  /**
   * Check identity coherence
   */
  private async checkIdentityCoherence(
    request: MultiverseConsistencyRequest
  ): Promise<boolean> {
    // In a full implementation, this would:
    // 1. Check identity mappings across realities
    // 2. Verify identity consistency
    // 3. Validate identity hashes

    // For now, return true if states are present
    return (
      (request.mdxState !== undefined && Object.keys(request.mdxState).length > 0) ||
      (request.primeState !== undefined && Object.keys(request.primeState).length > 0)
    );
  }

  /**
   * Check asset reality mapping
   */
  private async checkAssetRealityMapping(
    request: MultiverseConsistencyRequest
  ): Promise<boolean> {
    // In a full implementation, this would:
    // 1. Map assets across realities
    // 2. Verify asset ownership consistency
    // 3. Validate asset valuations

    // For now, return true if states are present
    return (
      (request.mdxState !== undefined && Object.keys(request.mdxState).length > 0) ||
      (request.parallelState !== undefined && Object.keys(request.parallelState).length > 0)
    );
  }

  /**
   * Perform Ω-Layer consistency validation
   */
  private async performOmegaValidation(
    request: MultiverseConsistencyRequest
  ): Promise<boolean> {
    // Use existing omega consistency service
    try {
      // In a full implementation, this would use omegaConsistencyService
      // For now, return true if states can be merged
      return (
        request.primeState !== undefined ||
        request.parallelState !== undefined
      );
    } catch (error) {
      logger.error('Multiverse Consistency: Omega validation error', {
        error,
      });
      return false;
    }
  }

  /**
   * Get consistency check by ID
   */
  async getConsistencyCheck(checkId: string) {
    return await prisma.metaverseConsistencyCheck.findUnique({
      where: { checkId },
      include: {
        dsez: true,
      },
    });
  }

  /**
   * Get consistency checks for D-SEZ
   */
  async getConsistencyChecksForDsez(dsezId: string) {
    return await prisma.metaverseConsistencyCheck.findMany({
      where: { dsezId },
      orderBy: { checkedAt: 'desc' },
    });
  }
}

export const multiverseConsistencyService = new MultiverseConsistencyService();

