import { Inject, Service } from 'typedi';
import { ServiceError } from '@/exceptions';
import TenancyService from '@/services/Tenancy/TenancyService';
import events from '@/subscribers/events';
import { ICustomerDeletingPayload } from '@/interfaces';
import DeleteCustomerLinkedCreidtNote from './DeleteCustomerLinkedCreditNote';

const ERRORS = {
  CUSTOMER_HAS_TRANSACTIONS: 'CUSTOMER_HAS_TRANSACTIONS',
};

@Service()
export default class DeleteCustomerLinkedCreditSubscriber {
  @Inject()
  tenancy: TenancyService;

  @Inject()
  deleteCustomerLinkedCredit: DeleteCustomerLinkedCreidtNote;

  /**
   * Attaches events with handlers.
   * @param bus
   */
  public attach = (bus) => {
    bus.subscribe(
      events.customers.onDeleting,
      this.validateCustomerHasNoLinkedCreditsOnDeleting
    );
  };

  /**
   * Validate vendor has no associated credit transaction once the vendor deleting.
   * @param {IVendorEventDeletingPayload} payload -
   */
  public validateCustomerHasNoLinkedCreditsOnDeleting = async ({
    tenantId,
    customerId,
  }: ICustomerDeletingPayload) => {
    try {
      await this.deleteCustomerLinkedCredit.validateCustomerHasNoCreditTransaction(
        tenantId,
        customerId
      );
    } catch (error) {
      throw new ServiceError(ERRORS.CUSTOMER_HAS_TRANSACTIONS);
    }
  };
}