add server to monorepo.

packages/server/src/lib/Transformer/TransformerInjectable.ts

@@ -0,0 +1,49 @@
+import { Service, Inject } from 'typedi';
+import { isNull } from 'lodash';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import { TenantMetadata } from '@/system/models';
+import { Transformer } from './Transformer';
+
+@Service()
+export class TransformerInjectable {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  /**
+   * Retrieves the application context of all tenant transformers.
+   * @param   {number} tenantId
+   * @returns {}
+   */
+  async getApplicationContext(tenantId: number) {
+    const i18n = this.tenancy.i18n(tenantId);
+    const organization = await TenantMetadata.query().findOne({ tenantId });
+
+    return {
+      organization,
+      i18n,
+    };
+  }
+
+  /**
+   * Transformes the given transformer after inject the tenant context.
+   * @param   {number} tenantId
+   * @param   {Record<string, any> | Record<string, any>[]} object
+   * @param   {Transformer} transformer
+   * @param   {Record<string, any>} options
+   * @returns {Record<string, any>}
+   */
+  async transform(
+    tenantId: number,
+    object: Record<string, any> | Record<string, any>[],
+    transformer: Transformer,
+    options?: Record<string, any>
+  ) {
+    if (!isNull(tenantId)) {
+      const context = await this.getApplicationContext(tenantId);
+      transformer.setContext(context);
+    }
+    transformer.setOptions(options);
+
+    return transformer.work(object);
+  }
+}