refactor: subscriptions to nestjs

packages/server-nest/src/modules/Dashboard/Dashboard.service.ts

@@ -0,0 +1,76 @@
+import { TenantModelProxy } from '../System/models/TenantBaseModel';
+import { FeaturesManager } from '../Features/FeaturesManager';
+import { ConfigService } from '@nestjs/config';
+import { TenancyContext } from '../Tenancy/TenancyContext.service';
+import { IFeatureAllItem } from '@/common/types/Features';
+import { Inject } from '@nestjs/common';
+import { TenantUser } from '../Tenancy/TenancyModels/models/TenantUser.model';
+
+interface IRoleAbility {
+  subject: string;
+  ability: string;
+}
+
+interface IDashboardBootMeta {
+  abilities: IRoleAbility[];
+  features: IFeatureAllItem[];
+  isBigcapitalCloud: boolean;
+}
+
+export class DashboardService {
+  constructor(
+    private readonly featuresManager: FeaturesManager,
+    private readonly configService: ConfigService,
+    private readonly tenancyContext: TenancyContext,
+
+    @Inject(TenantUser.name)
+    private readonly tenantUserModel: TenantModelProxy<typeof TenantUser>,
+  ) {}
+
+  /**
+   * Retrieve dashboard meta.
+   * @param {number} tenantId
+   * @param {number} authorizedUser
+   */
+  public getBootMeta = async (): Promise<IDashboardBootMeta> => {
+    // Retrieves all orgnaization abilities.
+    const abilities = await this.getBootAbilities();
+
+    // Retrieves all organization features.
+    const features = await this.featuresManager.all();
+
+    return {
+      abilities,
+      features,
+      isBigcapitalCloud: this.configService.get('hostedOnBigcapitalCloud'),
+    };
+  };
+
+  /**
+   * Transformes role permissions to abilities.
+   */
+  transformRoleAbility = (permissions) => {
+    return permissions
+      .filter((permission) => permission.value)
+      .map((permission) => ({
+        subject: permission.subject,
+        action: permission.ability,
+      }));
+  };
+
+  /**
+   * Retrieve the boot abilities.
+   * @returns
+   */
+  private getBootAbilities = async (): Promise<IRoleAbility[]> => {
+    const authorizedUser = await this.tenancyContext.getSystemUser();
+
+    const tenantUser = await this.tenantUserModel().query()
+      .findOne('systemUserId', authorizedUser.id)
+      .withGraphFetched('role.permissions');
+
+    return tenantUser.role.slug === 'admin'
+      ? [{ subject: 'all', action: 'manage' }]
+      : this.transformRoleAbility(tenantUser.role.permissions);
+  };
+}