request

src/modules/request/request.service.ts

@@ -1,11 +1,49 @@
 import { Injectable } from '@nestjs/common';
+import { EntityManager } from '@mikro-orm/postgresql';
 import { CreateRequestDto } from './dto/create-request.dto';
 import { UpdateRequestDto } from './dto/update-request.dto';
+import { Request } from './entities/request.entity';
+import { RequestItem } from './entities/request-item.entity';
+import { RequestStatusEnum } from './enum/request';
+import { UserService } from '../user/providers/user.service';
+import { ProductService } from '../product/providers/product.service';
 
 @Injectable()
 export class RequestService {
-  create(createRequestDto: CreateRequestDto) {
-    return 'This action adds a new request';
+  constructor(
+    private readonly em: EntityManager,
+    private readonly userService: UserService,
+    private readonly productService: ProductService,
+  ) {}
+
+  async create(createRequestDto: CreateRequestDto, userId: string) {
+    const { items } = createRequestDto;
+
+    const user = await this.userService.findOrFail(userId);
+
+    return this.em.transactional(async (em) => {
+      const request = em.create(Request, {
+        user,
+        status: RequestStatusEnum.PENDING,
+      });
+      em.persist(request);
+
+      for (const item of items) {
+        const product = await this.productService.findOneOrFail(item.productId);
+        const requestItem = em.create(RequestItem, {
+          request,
+          product,
+          quantity: item.quantity,
+          attributes: item.attributes,
+          description: item.description,
+          attachments: item.attachments,
+        });
+        request.items.add(requestItem);
+      }
+
+      await em.flush();
+      return request;
+    });
   }
 
   findAll() {