refactor: items services to Nestjs

packages/server-nest/src/modules/Transformer/TransformerInjectable.service.ts

@@ -0,0 +1,59 @@
+import { I18nService } from 'nestjs-i18n';
+import { Transformer } from './Transformer';
+import { Injectable } from '@nestjs/common';
+import { TenancyContext } from '../Tenancy/TenancyContext.service';
+import { TransformerContext } from './Transformer.types';
+
+@Injectable()
+export class TransformerInjectable {
+  constructor(
+    private readonly tenancyContext: TenancyContext,
+    private readonly i18n: I18nService,
+  ) {}
+
+  /**
+   * Retrieves the application context of all tenant transformers.
+   * @returns {TransformerContext}
+   */
+  async getApplicationContext(): Promise<TransformerContext> {
+    const tenant = await this.tenancyContext.getTenant(true);
+    const organization = tenant.metadata;
+
+    return {
+      organization,
+      i18n: this.i18n,
+      exportAls: {},
+    };
+  }
+
+  /**
+   * Retrieves the given tenatn date format.
+   * @returns {string}
+   */
+  async getTenantDateFormat() {
+    const tenant = await this.tenancyContext.getTenant(true);
+    return tenant.metadata.dateFormat;
+  }
+
+  /**
+   * Transformes the given transformer after inject the tenant context.
+   * @param {Record<string, any> | Record<string, any>[]} object
+   * @param {Transformer} transformer
+   * @param {Record<string, any>} options
+   * @returns {Record<string, any>}
+   */
+  async transform(
+    object: Record<string, any> | Record<string, any>[],
+    transformer: Transformer,
+    options?: Record<string, any>,
+  ) {
+    const context = await this.getApplicationContext();
+    transformer.setContext(context);
+
+    const dateFormat = await this.getTenantDateFormat();
+    transformer.setDateFormat(dateFormat);
+    transformer.setOptions(options);
+
+    return transformer.work(object);
+  }
+}