import { Event } from '@sanar/payments-sdk';
import { HttpRequestService } from './http.request.service';

require('dotenv/config');

export class WalletsService {
  private static instance: WalletsService;

  private httpService: HttpRequestService;

  constructor() {
    this.httpService = new HttpRequestService(
      process.env.WALLETS_URL,
    );
  }

  static getInstance() : WalletsService {
    if (!this.instance) {
      this.instance = new WalletsService();
    }

    return this.instance;
  }

  async findCustomer(email: string) : Promise<Event.Customer> {
    const result = await this.httpService.get('/customers', {
      params: {
        where: {
          user: {
            email,
          },
        },
      },
    });

    if (!(result.data.customers?.length > 0)) {
      throw new Error('Customer not found');
    }

    return result.data.customers[0];
  }
}