add server to monorepo.

packages/server/src/services/I18n/I18nService.ts

@@ -0,0 +1,66 @@
+import * as R from 'ramda';
+import { isUndefined } from 'lodash';
+import * as qim from 'qim';
+import { Service, Inject } from 'typedi';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+
+@Service()
+export default class I18nService {
+  @Inject()
+  tenancy: HasTenancyService;
+
+  /**
+   * 
+   * @param i18n 
+   * @param attributes 
+   * @param data 
+   * @returns 
+   */
+  private i18nAttributesMapper(i18n, attributes, data) {
+    return attributes.reduce((acc, attr, index) => {
+      return {
+        ...acc,
+        [attr]: i18n.__(acc[attr]),
+      };
+    }, data);
+  }
+
+  /**
+   * Mappes array collection to i18n localization based in given attributes.
+   * @param {Array<any>} data - Array collection.
+   * @param {string[]} attributes - Attributes.
+   * @param {number} tenantId - Tenant id.
+   */
+  public i18nMapper(
+    data: Array<any>,
+    attributes: string[] = [],
+    tenantId: number
+  ) {
+    const i18n = this.tenancy.i18n(tenantId);
+
+    return data.map((_data) => {
+      const newData = this.i18nAttributesMapper(i18n, attributes, _data);
+
+      return {
+        ..._data,
+        ...newData,
+      };
+    });
+  }
+
+  public i18nApply(
+    paths: (string|Function)[][],
+    data: Array<any>,
+    tenantId: number,
+  ) {
+    const i18n = this.tenancy.i18n(tenantId);
+    const applyCurry = R.curryN(3, qim.apply);
+    const transformedData = !isUndefined(data.toJSON) ? data.toJSON() : data;
+
+    const transform = (value) => i18n.__(value) || value;
+
+    const curriedCallbacks = paths.map((path) => applyCurry(path, transform));
+
+    return R.compose(...curriedCallbacks)(transformedData);
+  }
+}