pager

src/modules/pager/pager.service.ts

@@ -0,0 +1,79 @@
+import { BadRequestException, Injectable, NotFoundException } from '@nestjs/common';
+import { CreatePagerDto } from './dto/create-pager.dto';
+import { User } from '../users/entities/user.entity';
+import { EntityManager } from '@mikro-orm/postgresql';
+import { Restaurant } from '../restaurants/entities/restaurant.entity';
+import { Pager } from './entities/pager.entity';
+import { PagerStatus } from './interface/pager';
+import { ulid } from 'ulid';
+import { Admin } from '../admin/entities/admin.entity';
+
+@Injectable()
+export class PagerService {
+  constructor(private readonly em: EntityManager) {}
+
+  async create(createPagerDto: CreatePagerDto, params: { restId?: string; userId?: string; slug: string }) {
+    const { restId, userId, slug } = params;
+    let restaurant: Restaurant | null = null;
+    let user: User | null = null;
+    if (!restId && !userId && !slug) {
+      throw new BadRequestException('Invalid parameters');
+    }
+    if (restId) {
+      restaurant = await this.em.findOne(Restaurant, { id: restId });
+      if (!restaurant) {
+        throw new NotFoundException('Restaurant not found');
+      }
+    }
+    if (userId) {
+      user = await this.em.findOne(User, { id: userId });
+      if (!user) {
+        throw new NotFoundException('User not found');
+      }
+    }
+    if (!restaurant && slug) {
+      restaurant = await this.em.findOne(Restaurant, { slug });
+      if (!restaurant) {
+        throw new NotFoundException('Restaurant not found');
+      }
+    }
+
+    const pager = this.em.create(Pager, {
+      ...createPagerDto,
+      restaurant: restaurant!,
+      user,
+      cookieId: ulid().toString(),
+      status: PagerStatus.Pending,
+    });
+
+    await this.em.persistAndFlush(pager);
+    return pager;
+  }
+
+  async findAll(cookieId: string) {
+    const pagers = await this.em.find(Pager, { cookieId }, { populate: ['user'] });
+    return pagers;
+  }
+
+  async findAllByRestaurantId(restId: string) {
+    const pagers = await this.em.find(Pager, { restaurant: { id: restId } }, { populate: ['user'] });
+    return pagers;
+  }
+
+  async updateStatus(pagerId: string, restId: string, staffId: string, status: PagerStatus) {
+    const pager = await this.em.findOne(Pager, { id: pagerId, restaurant: { id: restId } });
+    if (!pager) {
+      throw new NotFoundException('Pager not found *');
+    }
+    const staff = await this.em.findOne(Admin, { id: staffId });
+    if (!staff) {
+      throw new NotFoundException('Staff not found');
+    }
+    pager.status = status;
+    if (status === PagerStatus.Acknowledged) {
+      pager.staff = staff;
+    }
+    await this.em.persistAndFlush(pager);
+    return pager;
+  }
+}