// Universal Monetary Baseline (UMB) Service
// Neutral valuation standards across monetary systems

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


export interface CreateUmbRequest {
  baselineName: string;
  description: string;
  valuationStandard: Record<string, unknown>;
  assetTypes: string[];
}

export class UmbService {
  /**
   * Create Universal Monetary Baseline
   */
  async createBaseline(request: CreateUmbRequest) {
    const umbId = `UMB-${uuidv4()}`;

    const baseline = await prisma.universal_monetary_baselines.create({
      data: {
        umbId,
        baselineName: request.baselineName,
        description: request.description,
        valuationStandard: request.valuationStandard,
        assetTypes: request.assetTypes,
        status: 'active',
        effectiveDate: new Date(),
      },
    });

    return baseline;
  }

  /**
   * Get baseline by ID
   */
  async getBaseline(umbId: string) {
    const baseline = await prisma.universal_monetary_baselines.findUnique({
      where: { umbId },
      include: {
        parityCalculations: true,
      },
    });

    if (!baseline) {
      throw new Error(`Baseline not found: ${umbId}`);
    }

    return baseline;
  }

  /**
   * Get active baseline
   */
  async getActiveBaseline() {
    const baseline = await prisma.universal_monetary_baselines.findFirst({
      where: {
        status: 'active',
      },
      include: {
        parityCalculations: {
          where: {
            status: 'active',
          },
        },
      },
      orderBy: {
        effectiveDate: 'desc',
      },
    });

    return baseline;
  }

  /**
   * Deprecate baseline
   */
  async deprecateBaseline(umbId: string) {
    return prisma.universal_monetary_baselines.update({
      where: { umbId },
      data: {
        status: 'deprecated',
        deprecatedAt: new Date(),
      },
    });
  }

  /**
   * Get all baselines
   */
  async getAllBaselines() {
    return prisma.universal_monetary_baselines.findMany({
      orderBy: {
        effectiveDate: 'desc',
      },
    });
  }
}

export const umbService = new UmbService();

