add server to monorepo.

packages/server/src/services/Resource/ResourceService.ts

@@ -0,0 +1,79 @@
+import { Service, Inject } from 'typedi';
+import { camelCase, upperFirst } from 'lodash';
+import * as qim from 'qim';
+import pluralize from 'pluralize';
+import { IModelMeta } from '@/interfaces';
+import TenancyService from '@/services/Tenancy/TenancyService';
+import { ServiceError } from '@/exceptions';
+import I18nService from '@/services/I18n/I18nService';
+import { tenantKnexConfig } from 'config/knexConfig';
+
+const ERRORS = {
+  RESOURCE_MODEL_NOT_FOUND: 'RESOURCE_MODEL_NOT_FOUND',
+};
+
+@Service()
+export default class ResourceService {
+  @Inject()
+  tenancy: TenancyService;
+
+  @Inject()
+  i18nService: I18nService;
+
+  /**
+   * Transform resource to model name.
+   * @param {string} resourceName
+   */
+  private resourceToModelName(resourceName: string): string {
+    return upperFirst(camelCase(pluralize.singular(resourceName)));
+  }
+
+  /**
+   * Retrieve resource model object.
+   * @param {number} tenantId -
+   * @param {string} inputModelName -
+   */
+  public getResourceModel(tenantId: number, inputModelName: string) {
+    const modelName = this.resourceToModelName(inputModelName);
+    const Models = this.tenancy.models(tenantId);
+
+    if (!Models[modelName]) {
+      throw new ServiceError(ERRORS.RESOURCE_MODEL_NOT_FOUND);
+    }
+    return Models[modelName];
+  }
+
+  /**
+   * Retrieve the resource meta.
+   * @param {number} tenantId
+   * @param {string} modelName
+   * @returns {IModelMeta}
+   */
+  public getResourceMeta(
+    tenantId: number,
+    modelName: string,
+    metakey?: string
+  ): IModelMeta {
+    const resourceModel = this.getResourceModel(tenantId, modelName);
+
+    // Retrieve the resource meta.
+    const resourceMeta = resourceModel.getMeta(metakey);
+
+    // Localization the fields names.
+    return this.getResourceMetaLocalized(resourceMeta, tenantId);
+  }
+
+  /**
+   * Retrieve the resource meta localized based on the current user language.
+   */
+  public getResourceMetaLocalized(meta, tenantId) {
+    const $enumerationType = (field) =>
+      field.fieldType === 'enumeration' ? field : undefined;
+
+    const naviagations = [
+      ['fields', qim.$each, 'name'],
+      ['fields', qim.$each, $enumerationType, 'options', qim.$each, 'label'],
+    ];
+    return this.i18nService.i18nApply(naviagations, meta, tenantId);
+  }
+}