feat(nestjs): migrate to NestJS

packages/server/src/modules/Roles/queries/GetRole.service.ts

@@ -0,0 +1,51 @@
+import { AbilitySchema } from '../AbilitySchema';
+import { RoleTransformer } from './RoleTransformer';
+import { Role } from '../models/Role.model';
+import { TransformerInjectable } from '../../Transformer/TransformerInjectable.service';
+import { ServiceError } from '../../Items/ServiceError';
+import { Inject, Injectable } from '@nestjs/common';
+import { CommandRolePermissionDto } from '../dtos/Role.dto';
+import { ERRORS } from '../constants';
+import { getInvalidPermissions } from '../utils';
+import { TenantModelProxy } from '@/modules/System/models/TenantBaseModel';
+
+@Injectable()
+export class GetRoleService {
+  constructor(
+    private readonly transformer: TransformerInjectable,
+
+    @Inject(Role.name)
+    private readonly roleModel: TenantModelProxy<typeof Role>,
+  ) {}
+
+  /**
+   * Retrieve the given role metadata.
+   * @param {number} roleId - Role id.
+   * @returns {Promise<IRole>}
+   */
+  public async getRole(roleId: number): Promise<Role> {
+    const role = await this.roleModel()
+      .query()
+      .findById(roleId)
+      .withGraphFetched('permissions')
+      .throwIfNotFound();
+
+    return this.transformer.transform(role, new RoleTransformer());
+  }
+
+  /**
+   * Validates the invalid given permissions.
+   * @param {ICreateRolePermissionDTO[]} permissions -
+   */
+  public validateInvalidPermissions = (
+    permissions: CommandRolePermissionDto[],
+  ) => {
+    const invalidPerms = getInvalidPermissions(AbilitySchema, permissions);
+
+    if (invalidPerms.length > 0) {
+      throw new ServiceError(ERRORS.INVALIDATE_PERMISSIONS, null, {
+        invalidPermissions: invalidPerms,
+      });
+    }
+  };
+}