chore: add business logic

src/core/interceptors/business.interceptor.ts

@@ -0,0 +1,50 @@
+import {
+  BadRequestException,
+  CallHandler,
+  ExecutionContext,
+  ForbiddenException,
+  Injectable,
+  Logger,
+  NestInterceptor,
+} from "@nestjs/common";
+import { FastifyRequest } from "fastify";
+import { Observable } from "rxjs";
+
+import { BusinessMessage } from "../../common/enums/message.enum";
+import { Business } from "../../modules/businesses/entities/business.entity";
+import { BusinessService } from "../../modules/businesses/services/businesses.service";
+
+declare module "fastify" {
+  interface FastifyRequest {
+    business?: Business;
+  }
+}
+
+@Injectable()
+export class BusinessInterceptor implements NestInterceptor {
+  private readonly headerName = "x-business-id";
+  private readonly logger = new Logger(BusinessInterceptor.name);
+
+  constructor(private readonly businessService: BusinessService) {}
+
+  async intercept(context: ExecutionContext, next: CallHandler): Promise<Observable<any>> {
+    const request = context.switchToHttp().getRequest<FastifyRequest>();
+
+    const businessId = request.headers[this.headerName.toLocaleLowerCase()] as string;
+
+    if (businessId) {
+      try {
+        const business = await this.businessService.getBusinessByDanakSubscriptionId(businessId);
+
+        request.business = business;
+      } catch (error) {
+        this.logger.error(error);
+        throw new BadRequestException(BusinessMessage.NOT_FOUND);
+      }
+    } else {
+      throw new ForbiddenException(BusinessMessage.BUSINESS_ID_REQUIRED);
+    }
+
+    return next.handle();
+  }
+}