Uecko_ERP/modules/customers/src/api/application/get-customer/get-customer.use-case.ts

import { ITransactionManager } from "@erp/core/api";
import { GetCustomerByIdQueryDTO } from "@erp/customers/common/dto";
import { UniqueID } from "@repo/rdx-ddd";
import { Result } from "@repo/rdx-utils";
import { ICustomerService } from "../../domain";
import { GetCustomerAssembler } from "./assembler";

export class GetCustomerUseCase {
  constructor(
    private readonly service: ICustomerService,
    private readonly transactionManager: ITransactionManager,
    private readonly assembler: GetCustomerAssembler
  ) {}

  public execute(dto: GetCustomerByIdQueryDTO) {
    const idOrError = UniqueID.create(dto.id);

    if (idOrError.isFailure) {
      return Result.fail(idOrError.error);
    }

    return this.transactionManager.complete(async (transaction) => {
      try {
        const invoiceOrError = await this.service.getById(idOrError.data, transaction);
        if (invoiceOrError.isFailure) {
          return Result.fail(invoiceOrError.error);
        }

        const getDTO = this.assembler.toDTO(invoiceOrError.data);
        return Result.ok(getDTO);
      } catch (error: unknown) {
        return Result.fail(error as Error);
      }
    });
  }
}