// DBIS Unified Holographic Economic Model - Encoding Service
// Holographic state encoding (CBDC flow, FX matrix, SSU pressure, stability fields)

import { Prisma } from '@prisma/client';
import prisma from '@/shared/database/prisma';
import { v4 as uuidv4 } from 'uuid';
import { createHash } from 'crypto';


export interface EncodeStateRequest {
  cbdcFlow: Record<string, unknown>;
  fxMatrix: Record<string, unknown>;
  ssuPressure: Record<string, unknown>;
  stabilityFields: Record<string, unknown>;
}

export class UhemEncodingService {
  /**
   * Encode holographic economic state
   * Formula: H_state = ENCODE(CBDC_flow, FX_matrix, SSU_pressure, stability_fields)
   */
  async encodeState(request: EncodeStateRequest) {
    const stateId = `HES-${uuidv4()}`;

    // Create encoded state
    const encodedState = {
      cbdcFlow: request.cbdcFlow as Prisma.InputJsonValue,
      fxMatrix: request.fxMatrix as Prisma.InputJsonValue,
      ssuPressure: request.ssuPressure as Prisma.InputJsonValue,
      stabilityFields: request.stabilityFields as Prisma.InputJsonValue,
      timestamp: new Date().toISOString(),
    };

    // Calculate state hash
    const stateHash = createHash('sha3-256')
      .update(JSON.stringify(encodedState))
      .digest('hex');

    const state = await prisma.holographicEconomicState.create({
      data: {
        stateId,
        stateHash,
        cbdcFlow: request.cbdcFlow as Prisma.InputJsonValue,
        fxMatrix: request.fxMatrix as Prisma.InputJsonValue,
        ssuPressure: request.ssuPressure as Prisma.InputJsonValue,
        stabilityFields: request.stabilityFields as Prisma.InputJsonValue,
        encodedState: encodedState,
        timestamp: new Date(),
      },
    });

    return state;
  }

  /**
   * Get state by ID
   */
  async getState(stateId: string) {
    return await prisma.holographicEconomicState.findUnique({
      where: { stateId },
      include: {
        projections: true,
        corrections: true,
        mappings: true,
      },
    });
  }

  /**
   * Get state by hash
   */
  async getStateByHash(stateHash: string) {
    return await prisma.holographicEconomicState.findUnique({
      where: { stateHash },
      include: {
        projections: true,
        corrections: true,
        mappings: true,
      },
    });
  }

  /**
   * Get latest state
   */
  async getLatestState() {
    return await prisma.holographicEconomicState.findFirst({
      orderBy: { timestamp: 'desc' },
      include: {
        projections: true,
        corrections: true,
        mappings: true,
      },
    });
  }

  /**
   * Get states by time range
   */
  async getStatesByTimeRange(startTime: Date, endTime: Date) {
    return await prisma.holographicEconomicState.findMany({
      where: {
        timestamp: {
          gte: startTime,
          lte: endTime,
        },
      },
      orderBy: { timestamp: 'asc' },
    });
  }
}

export const uhemEncodingService = new UhemEncodingService();

