// Metaverse Bridge Service
// Digital-physical bridge (NFT-backed commodities, virtual asset securitization)

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


export interface MetaverseBridgeRequest {
  metaverseNodeId: string;
  bridgeType: 'nft_commodity' | 'virtual_securitization' | 'hybrid';
  virtualAssetId: string;
  physicalAssetId?: string;
  nftTokenId?: string;
  amount: string;
  currencyCode: string;
}

export interface MetaverseBridgeResult {
  bridgeId: string;
  virtualAssetId: string;
  physicalAssetId?: string;
  nftTokenId?: string;
  status: string;
}

export class MetaverseBridgeService {
  /**
   * Create digital-physical bridge
   * Supports:
   * - NFT-backed commodities
   * - Virtual asset securitization
   * - Hybrid bridges
   */
  async createBridge(
    request: MetaverseBridgeRequest
  ): Promise<MetaverseBridgeResult> {
    logger.info('Metaverse: Creating digital-physical bridge', { request });

    // Step 1: Verify metaverse node exists
    const node = await prisma.metaverseNode.findUnique({
      where: { nodeId: request.metaverseNodeId },
    });

    if (!node) {
      throw new Error(`Metaverse node not found: ${request.metaverseNodeId}`);
    }

    // Step 2: Create bridge based on type
    const bridgeId = `METAVERSE-BRIDGE-${uuidv4()}`;

    let physicalAssetId: string | undefined;
    let nftTokenId: string | undefined;

    switch (request.bridgeType) {
      case 'nft_commodity':
        // Create NFT-backed commodity bridge
        nftTokenId = request.nftTokenId || `NFT-${uuidv4()}`;
        physicalAssetId = request.physicalAssetId;
        break;

      case 'virtual_securitization':
        // Create virtual asset securitization
        // Link virtual asset to securitized instrument
        break;

      case 'hybrid':
        // Create hybrid bridge
        nftTokenId = request.nftTokenId || `NFT-${uuidv4()}`;
        physicalAssetId = request.physicalAssetId;
        break;
    }

    // Step 3: Create bridge record
    const bridge = await prisma.metaverseBridge.create({
      data: {
        bridgeId,
        metaverseNodeId: request.metaverseNodeId,
        bridgeType: request.bridgeType,
        virtualAssetId: request.virtualAssetId,
        physicalAssetId: physicalAssetId || null,
        nftTokenId: nftTokenId || null,
        amount: new Decimal(request.amount),
        currencyCode: request.currencyCode,
        status: 'active',
      },
    });

    logger.info('Metaverse: Digital-physical bridge created', {
      bridgeId,
      bridgeType: request.bridgeType,
    });

    return {
      bridgeId,
      virtualAssetId: request.virtualAssetId,
      physicalAssetId,
      nftTokenId,
      status: bridge.status,
    };
  }

  /**
   * Get bridge by ID
   */
  async getBridge(bridgeId: string) {
    return await prisma.metaverseBridge.findUnique({
      where: { bridgeId },
      include: {
        node: true,
      },
    });
  }

  /**
   * Get bridges for metaverse node
   */
  async getBridgesForNode(metaverseNodeId: string) {
    return await prisma.metaverseBridge.findMany({
      where: { metaverseNodeId },
      orderBy: { createdAt: 'desc' },
    });
  }

  /**
   * Get bridges by type
   */
  async getBridgesByType(bridgeType: string) {
    return await prisma.metaverseBridge.findMany({
      where: { bridgeType },
      orderBy: { createdAt: 'desc' },
    });
  }
}

export const metaverseBridgeService = new MetaverseBridgeService();

