// Avatar Transaction Service
// Handles avatar-to-avatar transactions in metaverse

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


export interface AvatarTransactionRequest {
  metaverseNodeId: string;
  sourceAvatarId: string;
  destinationAvatarId: string;
  amount: string;
  currencyCode: string;
  assetType: string;
  transactionType?: 'payment' | 'asset_transfer' | 'land_purchase';
  metadata?: Record<string, unknown>;
}

export interface AvatarTransactionResult {
  transactionId: string;
  status: string;
  sourceAvatarId: string;
  destinationAvatarId: string;
}

export class AvatarTransactionService {
  /**
   * Create avatar transaction
   * This is the entry point for metaverse transactions
   */
  async createAvatarTransaction(
    request: AvatarTransactionRequest
  ): Promise<AvatarTransactionResult> {
    logger.info('Avatar: Creating transaction', { request });

    // 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}`);
    }

    // Verify source avatar identity exists
    const sourceIdentity = await prisma.metaverseIdentity.findFirst({
      where: {
        metaverseNodeId: request.metaverseNodeId,
        avatarId: request.sourceAvatarId,
        status: 'active',
      },
    });

    if (!sourceIdentity) {
      throw new Error(`Source avatar identity not found: ${request.sourceAvatarId}`);
    }

    // Verify destination avatar identity exists
    const destinationIdentity = await prisma.metaverseIdentity.findFirst({
      where: {
        metaverseNodeId: request.metaverseNodeId,
        avatarId: request.destinationAvatarId,
        status: 'active',
      },
    });

    if (!destinationIdentity) {
      throw new Error(`Destination avatar identity not found: ${request.destinationAvatarId}`);
    }

    const transactionId = `AVATAR-TX-${uuidv4()}`;

    logger.info('Avatar: Transaction created', { transactionId });

    return {
      transactionId,
      status: 'pending',
      sourceAvatarId: request.sourceAvatarId,
      destinationAvatarId: request.destinationAvatarId,
    };
  }

  /**
   * Get avatar transaction by ID
   */
  async getTransaction(transactionId: string) {
    // In a full implementation, this would query a transaction log
    // For now, return transaction metadata
    return {
      transactionId,
      status: 'pending',
    };
  }
}

export const avatarTransactionService = new AvatarTransactionService();

