refactor: split the services to multiple service classes (#202)

packages/server/src/services/Sales/Estimates/SaleEstimateValidators.ts

@@ -0,0 +1,87 @@
+import { Inject, Service } from 'typedi';
+import { ServiceError } from '@/exceptions';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import { ISaleEstimate } from '@/interfaces';
+import { ERRORS } from './constants';
+import { SaleEstimate } from '@/models';
+
+@Service()
+export class SaleEstimateValidators {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  /**
+   * Validates the given estimate existance.
+   * @param {SaleEstimate | undefined | null} estimate -
+   */
+  public validateEstimateExistance(estimate: SaleEstimate | undefined | null) {
+    if (!estimate) {
+      throw new ServiceError(ERRORS.SALE_ESTIMATE_NOT_FOUND);
+    }
+  }
+
+  /**
+   * Validate the estimate number unique on the storage.
+   * @param {Request} req
+   * @param {Response} res
+   * @param {Function} next
+   */
+  public async validateEstimateNumberExistance(
+    tenantId: number,
+    estimateNumber: string,
+    notEstimateId?: number
+  ) {
+    const { SaleEstimate } = this.tenancy.models(tenantId);
+
+    const foundSaleEstimate = await SaleEstimate.query()
+      .findOne('estimate_number', estimateNumber)
+      .onBuild((builder) => {
+        if (notEstimateId) {
+          builder.whereNot('id', notEstimateId);
+        }
+      });
+    if (foundSaleEstimate) {
+      throw new ServiceError(ERRORS.SALE_ESTIMATE_NUMBER_EXISTANCE);
+    }
+  }
+
+  /**
+   * Validates the given sale estimate not already converted to invoice.
+   * @param {ISaleEstimate} saleEstimate -
+   */
+  public validateEstimateNotConverted(saleEstimate: ISaleEstimate) {
+    if (saleEstimate.isConvertedToInvoice) {
+      throw new ServiceError(ERRORS.SALE_ESTIMATE_CONVERTED_TO_INVOICE);
+    }
+  }
+
+  /**
+   * Validate the sale estimate number require.
+   * @param {ISaleEstimate} saleInvoiceObj
+   */
+  public validateEstimateNoRequire(estimateNumber: string) {
+    if (!estimateNumber) {
+      throw new ServiceError(ERRORS.SALE_ESTIMATE_NO_IS_REQUIRED);
+    }
+  }
+
+  /**
+   * Validate the given customer has no sales estimates.
+   * @param {number} tenantId
+   * @param {number} customerId - Customer id.
+   */
+  public async validateCustomerHasNoEstimates(
+    tenantId: number,
+    customerId: number
+  ) {
+    const { SaleEstimate } = this.tenancy.models(tenantId);
+
+    const estimates = await SaleEstimate.query().where(
+      'customer_id',
+      customerId
+    );
+    if (estimates.length > 0) {
+      throw new ServiceError(ERRORS.CUSTOMER_HAS_SALES_ESTIMATES);
+    }
+  }
+}