add server to monorepo.

packages/server/src/services/Purchases/VendorCredits/GetVendorCredit.ts

@@ -0,0 +1,40 @@
+import { ServiceError } from '@/exceptions';
+import { TransformerInjectable } from '@/lib/Transformer/TransformerInjectable';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import { VendorCreditTransformer } from './VendorCreditTransformer';
+import { Inject, Service } from 'typedi';
+import { ERRORS } from './constants';
+
+@Service()
+export default class GetVendorCredit {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  @Inject()
+  private transformer: TransformerInjectable;
+
+  /**
+   * Retrieve the given vendor credit.
+   * @param {number} tenantId - Tenant id.
+   * @param {number} vendorCreditId - Vendor credit id.
+   */
+  public getVendorCredit = async (tenantId: number, vendorCreditId: number) => {
+    const { VendorCredit } = this.tenancy.models(tenantId);
+
+    // Retrieve the vendor credit model graph.
+    const vendorCredit = await VendorCredit.query()
+      .findById(vendorCreditId)
+      .withGraphFetched('entries.item')
+      .withGraphFetched('vendor')
+      .withGraphFetched('branch');
+
+    if (!vendorCredit) {
+      throw new ServiceError(ERRORS.VENDOR_CREDIT_NOT_FOUND);
+    }
+    return this.transformer.transform(
+      tenantId,
+      vendorCredit,
+      new VendorCreditTransformer()
+    );
+  };
+}