// DBIS Global Multiversal Monetary Theory - Units Service
// PMU, QMU, HMU, PSU management

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


export type MonetaryUnitType = 'PMU' | 'QMU' | 'HMU' | 'PSU';

export interface CreateMonetaryUnitRequest {
  layerId: string;
  unitType: MonetaryUnitType;
  unitName: string;
  anchorValue?: number;
  derivationFormula?: Record<string, unknown>;
  quantumState?: Record<string, unknown>;
  holographicEncoding?: Record<string, unknown>;
}

export class GmmtUnitsService {
  /**
   * Create multiversal monetary unit
   */
  async createUnit(request: CreateMonetaryUnitRequest) {
    // Verify layer exists
    const layer = await prisma.realityLayer.findUnique({
      where: { layerId: request.layerId },
    });

    if (!layer) {
      throw new Error(`Reality layer not found: ${request.layerId}`);
    }

    const unitId = `MMU-${uuidv4()}`;

    const unit = await prisma.multiversalMonetaryUnit.create({
      data: {
        unitId,
        layerId: request.layerId,
        unitType: request.unitType,
        unitName: request.unitName,
        anchorValue: request.anchorValue || null,
        derivationFormula: request.derivationFormula || null,
        quantumState: request.quantumState || null,
        holographicEncoding: request.holographicEncoding || null,
        status: 'active',
      },
    });

    return unit;
  }

  /**
   * Get unit by ID
   */
  async getUnit(unitId: string) {
    return await prisma.multiversalMonetaryUnit.findUnique({
      where: { unitId },
      include: {
        layer: true,
      },
    });
  }

  /**
   * Get units by type
   */
  async getUnitsByType(unitType: MonetaryUnitType) {
    return await prisma.multiversalMonetaryUnit.findMany({
      where: {
        unitType,
        status: 'active',
      },
      include: {
        layer: true,
      },
    });
  }

  /**
   * Get units by layer
   */
  async getUnitsByLayer(layerId: string) {
    return await prisma.multiversalMonetaryUnit.findMany({
      where: {
        layerId,
        status: 'active',
      },
    });
  }

  /**
   * Get Prime Monetary Unit (PMU)
   */
  async getPMU() {
    return await prisma.multiversalMonetaryUnit.findFirst({
      where: {
        unitType: 'PMU',
        status: 'active',
      },
      include: {
        layer: true,
      },
    });
  }

  /**
   * Create reality layer
   */
  async createRealityLayer(
    layerName: string,
    layerType: 'classical' | 'quantum' | 'simulated' | 'holographic' | 'parallel'
  ) {
    const layerId = `RL-${uuidv4()}`;

    const layer = await prisma.realityLayer.create({
      data: {
        layerId,
        layerName,
        layerType,
        authenticationStatus: 'pending',
        coherenceLevel: 0,
        status: 'active',
      },
    });

    return layer;
  }

  /**
   * Authenticate reality layer
   */
  async authenticateLayer(layerId: string, coherenceLevel: number) {
    return await prisma.realityLayer.update({
      where: { layerId },
      data: {
        authenticationStatus: 'authenticated',
        coherenceLevel,
      },
    });
  }

  /**
   * Get all reality layers
   */
  async getRealityLayers() {
    return await prisma.realityLayer.findMany({
      where: { status: 'active' },
      include: {
        monetaryUnits: true,
      },
    });
  }
}

export const gmmtUnitsService = new GmmtUnitsService();

