chore: discount module

src/modules/discounts/providers/discounts.service.ts

@@ -1,9 +1,11 @@
 import { randomBytes } from "node:crypto";
 
-import { BadRequestException, Injectable } from "@nestjs/common";
+import { BadRequestException, Injectable, NotFoundException } from "@nestjs/common";
+import { In } from "typeorm";
 
-import { CommonMessage, DiscountMessage } from "../../../common/enums/message.enum";
-// import { DanakServicesService } from "../../danak-services/providers/danak-services.service";
+import { CommonMessage, DiscountMessage, SubscriptionMessage, UserMessage } from "../../../common/enums/message.enum";
+import { SubscriptionsPlanRepository } from "../../subscriptions/repositories/subscriptions.repository";
+import { UserRepository } from "../../users/repositories/users.repository";
 import { CreateDiscountDto } from "../DTO/create-discount.dto";
 import { DiscountRepository } from "../repositories/discount.repository";
 
@@ -11,13 +13,14 @@ import { DiscountRepository } from "../repositories/discount.repository";
 export class DiscountService {
   constructor(
     private readonly discountRepository: DiscountRepository,
-    // private readonly danakServicesService: DanakServicesService,
+    private readonly subscriptionPlanRepository: SubscriptionsPlanRepository,
+    private readonly userRepository: UserRepository,
   ) {}
 
   /******************************************** */
 
   async create(createDiscountDto: CreateDiscountDto) {
-    const { services, ...discountData } = createDiscountDto;
+    const { subscriptionPlanIds, ...discountData } = createDiscountDto;
 
     const code = await this.generateUniqueCouponCode();
 
@@ -26,10 +29,28 @@ export class DiscountService {
       code,
     });
 
-    if (services && services.length) {
-      // const foundServices = await this.danakServicesService.findServicesByIds(services);
-      // discount.services = foundServices;
+    if (createDiscountDto.subscriptionPlanIds && createDiscountDto.subscriptionPlanIds.length) {
+      const subscriptionPlans = await this.subscriptionPlanRepository.find({
+        where: { id: In(createDiscountDto.subscriptionPlanIds) },
+      });
+
+      if (subscriptionPlans.length !== createDiscountDto.subscriptionPlanIds.length) {
+        throw new NotFoundException(SubscriptionMessage.NOT_FOUND);
+      }
+
+      discount.subscriptionPlans = subscriptionPlans;
     }
+
+    if (createDiscountDto.userIds) {
+      const users = await this.userRepository.find({ where: { id: In(createDiscountDto.userIds) } });
+
+      if (users.length !== createDiscountDto.userIds.length) {
+        throw new NotFoundException(UserMessage.USER_NOT_FOUND);
+      }
+
+      discount.users = users;
+    }
+
     await this.discountRepository.save(discount);
 
     return {
@@ -40,9 +61,39 @@ export class DiscountService {
 
   /******************************************** */
 
+  async findByCode(code: string) {
+    const discount = await this.discountRepository.findOne({
+      where: { code, isActive: true },
+      relations: ["subscriptionPlans"],
+    });
+    if (!discount) {
+      throw new NotFoundException(DiscountMessage.NOT_FOUND);
+    }
+    return { discount };
+  }
+
+  /******************************************** */
+
+  async findDiscountsByUser(userId: string) {
+    const user = await this.userRepository.findOneBy({
+      id: userId,
+    });
+    if (!user) throw new BadRequestException(UserMessage.USER_NOT_FOUND);
+
+    const discounts = await this.discountRepository.find({
+      where: {
+        users: { id: user.id },
+      },
+    });
+
+    return { discounts };
+  }
+
+  /******************************************** */
+
   async findAll() {
-    const services = await this.discountRepository.find({ relations: ["services"] });
-    return { services };
+    const discounts = await this.discountRepository.find({ relations: ["subscriptionPlans"] });
+    return { discounts };
   }
 
   /******************************************** */
@@ -50,7 +101,7 @@ export class DiscountService {
   async findOne(id: string) {
     const discount = await this.discountRepository.findOne({
       where: { id },
-      relations: ["services"],
+      relations: ["subscriptionPlans"],
     });
     if (!discount) throw new BadRequestException(DiscountMessage.NOT_FOUND);
     return { discount };