/**
 * Deposits Client
 * 
 * Integration with deposits service for querying deposit history
 * and status. This is a placeholder for future microservice integration.
 */

import { Logger } from '../utils/logger.js';

export enum DepositStatus {
  PENDING = 'PENDING',
  CONFIRMING = 'CONFIRMING',
  COMPLETED = 'COMPLETED',
  FAILED = 'FAILED',
}

export interface Deposit {
  id: string;
  userId: string;
  asset: string;
  amount: string;
  status: DepositStatus;
  txHash?: string;
  confirmations?: number;
  requiredConfirmations?: number;
  address: string;
  createdAt: Date;
  completedAt?: Date;
  metadata?: Record<string, any>;
}

export interface DepositFilters {
  asset?: string;
  status?: DepositStatus;
  startDate?: Date;
  endDate?: Date;
  txHash?: string;
}

export interface PaginationOptions {
  skip?: number;
  take?: number;
  orderBy?: 'createdAt' | 'completedAt';
  orderDirection?: 'asc' | 'desc';
}

export interface DepositsResponse {
  deposits: Deposit[];
  total: number;
  hasMore: boolean;
}

export class DepositsClient {
  private logger: Logger;
  private serviceUrl?: string;

  constructor(logger: Logger, serviceUrl?: string) {
    this.logger = logger;
    this.serviceUrl = serviceUrl;
  }

  /**
   * Get deposits for a user with optional filters and pagination
   * 
   * TODO: Implement actual integration with deposits microservice
   * - HTTP REST API client
   * - Or message queue subscriber for deposit events
   * - Handle authentication/authorization
   * - Implement retry logic and error handling
   */
  async getDeposits(
    userId: string,
    filters?: DepositFilters,
    pagination?: PaginationOptions
  ): Promise<DepositsResponse> {
    this.logger.info('Fetching deposits (mock)', { userId, filters, pagination });

    // TODO: Replace with actual service call
    // Example:
    // const response = await fetch(`${this.serviceUrl}/api/deposits`, {
    //   method: 'POST',
    //   headers: { 'Content-Type': 'application/json' },
    //   body: JSON.stringify({ userId, filters, pagination }),
    // });
    // return response.json();

    // Mock response
    return {
      deposits: [],
      total: 0,
      hasMore: false,
    };
  }

  /**
   * Get a specific deposit by ID
   * 
   * TODO: Implement actual service integration
   */
  async getDeposit(depositId: string, userId: string): Promise<Deposit | null> {
    this.logger.info('Fetching deposit (mock)', { depositId, userId });

    // TODO: Replace with actual service call
    return null;
  }

  /**
   * Get pending deposits for a user
   */
  async getPendingDeposits(userId: string): Promise<Deposit[]> {
    const response = await this.getDeposits(userId, {
      status: DepositStatus.PENDING,
    });
    return response.deposits;
  }

  /**
   * Get deposits summary for a user
   */
  async getDepositsSummary(userId: string, asset?: string): Promise<{
    totalDeposits: string;
    totalCount: number;
    pendingCount: number;
  }> {
    this.logger.info('Fetching deposits summary (mock)', { userId, asset });

    // TODO: Implement actual service integration
    return {
      totalDeposits: '0',
      totalCount: 0,
      pendingCount: 0,
    };
  }
}
