// SMCP State Tracking Service
// Parallel/simulated state tracking

import prisma from '@/shared/database/prisma';
import { Decimal } from '@prisma/client/runtime/library';
import { v4 as uuidv4 } from 'uuid';


export interface CreateStateMappingRequest {
  continuityId: string;
  realityType: string;
  stateIdentifier: string;
  stateData?: Record<string, unknown>;
  divergence?: string;
}

export interface StateMappingResult {
  mappingId: string;
  realityType: string;
  stateIdentifier: string;
  divergence?: string;
  status: string;
}

export class SmcpStateTrackingService {
  /**
   * Create a multiverse state mapping
   */
  async createStateMapping(
    request: CreateStateMappingRequest
  ): Promise<StateMappingResult> {
    // Verify continuity identity exists
    const continuity = await prisma.sovereign_continuity_identities.findUnique({
      where: { continuityId: request.continuityId },
    });

    if (!continuity) {
      throw new Error(`Continuity identity not found: ${request.continuityId}`);
    }

    const mappingId = `SMCP-MAP-${uuidv4()}`;

    const mapping = await prisma.multiverse_state_mappings.create({
      data: {
        mappingId,
        continuityId: request.continuityId,
        realityType: request.realityType,
        stateIdentifier: request.stateIdentifier,
        stateData: request.stateData || {},
        divergence: request.divergence ? new Decimal(request.divergence) : null,
        status: 'active',
      },
    });

    return {
      mappingId: mapping.mappingId,
      realityType: mapping.realityType,
      stateIdentifier: mapping.stateIdentifier,
      divergence: mapping.divergence?.toString(),
      status: mapping.status,
    };
  }

  /**
   * Get all state mappings for a continuity identity
   */
  async getStateMappings(
    continuityId: string
  ): Promise<StateMappingResult[]> {
    const mappings = await prisma.multiverse_state_mappings.findMany({
      where: {
        continuityId,
        status: 'active',
      },
      orderBy: { realityType: 'asc' },
    });

    return mappings.map((mapping) => ({
      mappingId: mapping.mappingId,
      realityType: mapping.realityType,
      stateIdentifier: mapping.stateIdentifier,
      divergence: mapping.divergence?.toString(),
      status: mapping.status,
    }));
  }

  /**
   * Get state mapping by reality type
   */
  async getStateMappingByReality(
    continuityId: string,
    realityType: string
  ): Promise<StateMappingResult | null> {
    const mapping = await prisma.multiverse_state_mappings.findFirst({
      where: {
        continuityId,
        realityType,
        status: 'active',
      },
    });

    if (!mapping) {
      return null;
    }

    return {
      mappingId: mapping.mappingId,
      realityType: mapping.realityType,
      stateIdentifier: mapping.stateIdentifier,
      divergence: mapping.divergence?.toString(),
      status: mapping.status,
    };
  }

  /**
   * Update state mapping
   */
  async updateStateMapping(
    mappingId: string,
    updates: Partial<CreateStateMappingRequest>
  ): Promise<StateMappingResult> {
    const updateData: any = {};

    if (updates.stateIdentifier) {
      updateData.stateIdentifier = updates.stateIdentifier;
    }
    if (updates.stateData !== undefined) {
      updateData.stateData = updates.stateData;
    }
    if (updates.divergence !== undefined) {
      updateData.divergence = updates.divergence
        ? new Decimal(updates.divergence)
        : null;
    }

    const mapping = await prisma.multiverse_state_mappings.update({
      where: { mappingId },
      data: updateData,
    });

    return {
      mappingId: mapping.mappingId,
      realityType: mapping.realityType,
      stateIdentifier: mapping.stateIdentifier,
      divergence: mapping.divergence?.toString(),
      status: mapping.status,
    };
  }

  /**
   * Sync state mapping (update lastSynced timestamp)
   */
  async syncStateMapping(mappingId: string): Promise<void> {
    await prisma.multiverse_state_mappings.update({
      where: { mappingId },
      data: {
        lastSynced: new Date(),
      },
    });
  }

  /**
   * Track parallel state divergence
   */
  async trackDivergence(
    mappingId: string,
    divergence: string
  ): Promise<void> {
    await prisma.multiverse_state_mappings.update({
      where: { mappingId },
      data: {
        divergence: new Decimal(divergence),
        lastSynced: new Date(),
      },
    });
  }
}

