Matin
423 lines
16 KiB
TypeScript
423 lines
16 KiB
TypeScript
import { BadRequestException, Injectable } from "@nestjs/common";
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import dayjs from "dayjs";
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// eslint-disable-next-line import/no-named-as-default
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import Decimal from "decimal.js";
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import { DataSource, In } from "typeorm";
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import { ServiceMessage, SubscriptionMessage, WalletMessage } from "../../../common/enums/message.enum";
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import { DanakServicesService } from "../../danak-services/providers/danak-services.service";
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import { DiscountCalculationType } from "../../discounts/enums/discount-type.enum";
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import { InvoicesService } from "../../invoices/providers/invoices.service";
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import { UsersService } from "../../users/providers/users.service";
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import { PaginationUtils } from "../../utils/providers/pagination.utils";
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import { Wallet } from "../../wallets/entities/wallet.entity";
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import { WalletsService } from "../../wallets/providers/wallets.service";
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import { AddSubscriptionsToServiceDto } from "../DTO/create-subscription.dto";
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import { SearchUserSubsQueryDto } from "../DTO/search-user-subs-query.dto";
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import { ServiceSubsQueryDto } from "../DTO/service-subs-query.dto";
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import { SubscribeServiceDto } from "../DTO/subscribe-service.dto";
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import { UpdateSubscriptionPlanDto } from "../DTO/update-subscription.dto";
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import { SubscriptionPlan } from "../entities/subscription.entity";
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import { UserSubscription } from "../entities/user-subscription.entity";
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import { SubscriptionStatus } from "../enums/subscription-status.enum";
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import { SubscriptionsPlanRepository } from "../repositories/subscriptions.repository";
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import { UserSubscriptionsRepository } from "../repositories/user-subscriptions.repository";
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@Injectable()
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export class SubscriptionsService {
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constructor(
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private readonly subscriptionsPlanRepository: SubscriptionsPlanRepository,
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private readonly userSubscriptionsRepository: UserSubscriptionsRepository,
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private readonly invoicesService: InvoicesService,
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private readonly usersService: UsersService,
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private readonly walletsService: WalletsService,
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private readonly danakServices: DanakServicesService,
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private readonly dataSource: DataSource,
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) {}
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//************************************ */
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async createSubscriptionsPlan(createDto: AddSubscriptionsToServiceDto) {
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const danakService = await this.danakServices.findServiceById(createDto.serviceId);
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if (!danakService) throw new BadRequestException(ServiceMessage.SERVICE_NOT_FOUND_BY_ID);
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const subscriptions = createDto.subs.map((sub) => ({ ...sub, service: { id: createDto.serviceId } }));
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const subscriptionNames = createDto.subs.map((sub) => sub.name);
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const existingSubscriptions = await this.subscriptionsPlanRepository.find({
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where: {
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name: In(subscriptionNames),
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service: { id: createDto.serviceId },
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},
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});
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if (existingSubscriptions.length > 0)
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throw new BadRequestException({ message: [SubscriptionMessage.NAME_EXIST, existingSubscriptions] });
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const createdSubscriptions = this.subscriptionsPlanRepository.create(subscriptions);
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await this.subscriptionsPlanRepository.save(createdSubscriptions);
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return {
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message: SubscriptionMessage.CREATED,
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subscriptions: createdSubscriptions,
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};
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}
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//************************************ */
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async getUserSubscriptions(userId: string, queryDto: SearchUserSubsQueryDto) {
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const queryBuilder = this.userSubscriptionsRepository
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.createQueryBuilder("userSubscription")
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.leftJoinAndSelect("userSubscription.plan", "plan")
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.leftJoinAndSelect("plan.service", "service")
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.where("userSubscription.user.id = :userId", { userId });
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if (queryDto.q) {
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queryBuilder.andWhere("(service.name ILIKE :query OR service.title ILIKE :query OR service.description ILIKE :query)", {
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query: `%${queryDto.q}%`,
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});
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}
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const subscriptions = await queryBuilder.getMany();
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return {
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subscriptions,
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};
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}
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//************************************ */
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async getUserSubscriptionById(userSubId: string, userId: string) {
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const userSubscription = await this.userSubscriptionsRepository.findOne({
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where: { id: userSubId, user: { id: userId } },
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relations: {
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plan: {
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service: {
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images: true,
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subscriptionPlans: true,
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},
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},
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},
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});
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if (!userSubscription) throw new BadRequestException(SubscriptionMessage.USER_SUBS_NOT_FOUND);
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return {
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userSubscription,
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};
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}
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//************************************ */
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async updateSubscriptionPlan(id: string, updateDto: UpdateSubscriptionPlanDto) {
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if (updateDto.serviceId) {
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const danakService = await this.danakServices.findServiceById(updateDto.serviceId);
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if (!danakService) throw new BadRequestException(ServiceMessage.SERVICE_NOT_FOUND_BY_ID);
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}
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const subscription = await this.subscriptionsPlanRepository.findOneBy({ id });
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if (!subscription) throw new BadRequestException(SubscriptionMessage.NOT_FOUND);
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if (updateDto.name) {
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const existSubscription = await this.subscriptionsPlanRepository.findOneByName(updateDto.name, id);
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if (existSubscription) throw new BadRequestException(SubscriptionMessage.NAME_EXIST);
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}
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await this.subscriptionsPlanRepository.update(id, updateDto);
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await this.subscriptionsPlanRepository.save({
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...subscription,
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...updateDto,
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service: updateDto.serviceId ? { id: updateDto.serviceId } : subscription.service,
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});
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return {
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message: SubscriptionMessage.UPDATED,
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subscription,
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};
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}
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//************************************ */
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async getSubscriptionPlanById(subscriptionId: string) {
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const subscription = await this.subscriptionsPlanRepository.findOneBy({ id: subscriptionId });
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if (!subscription) throw new BadRequestException(SubscriptionMessage.NOT_FOUND);
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return {
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subscription,
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};
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}
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//************************************ */
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async getServiceSubscriptions(serviceId: string, queryDto: ServiceSubsQueryDto) {
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const service = await this.danakServices.findServiceById(serviceId);
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const { limit, skip } = PaginationUtils(queryDto);
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const queryBuilder = this.subscriptionsPlanRepository
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.createQueryBuilder("subscription")
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.leftJoin("subscription.service", "service")
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.addSelect(["service.id"])
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.leftJoin("subscription.discounts", "discount")
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.addSelect(["discount.calculationType", "discount.amount", "discount.startDate", "discount.endDate", "discount.isActive"])
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.where("service.id = :serviceId", { serviceId });
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if (queryDto.q) {
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queryBuilder.andWhere("subscription.name ILIKE :query", { query: `%${queryDto.q}%` });
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}
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if (queryDto.isActive !== undefined) {
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queryBuilder.andWhere("subscription.isActive = :isActive", { isActive: queryDto.isActive === 1 });
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}
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const [subscriptions, count] = await queryBuilder.skip(skip).take(limit).getManyAndCount();
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const transformedSubscriptions = subscriptions.map((subscription) => {
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let price = new Decimal(subscription.price);
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if (subscription.discounts && subscription.discounts.length > 0) {
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subscription.discounts.forEach((discount) => {
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if (discount.isActive && new Date() >= discount.startDate && new Date() <= discount.endDate) {
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if (discount.calculationType === DiscountCalculationType.PERCENTAGE) {
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const discountAmount = price.mul(discount.amount).div(100);
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price = price.sub(discountAmount);
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} else if (discount.calculationType === DiscountCalculationType.FIXED) {
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price = price.sub(discount.amount);
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}
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}
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});
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}
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return {
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...subscription,
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finalPrice: price.toNumber(),
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};
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});
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return {
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service,
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subscriptions: transformedSubscriptions,
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count,
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pagination: true,
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};
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}
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//************************************ */
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async toggleSubStatus(subId: string) {
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const subscription = await this.subscriptionsPlanRepository.findOneBy({ id: subId });
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if (!subscription) throw new BadRequestException(SubscriptionMessage.NOT_FOUND);
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subscription.isActive = !subscription.isActive;
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await this.subscriptionsPlanRepository.save(subscription);
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return {
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message: SubscriptionMessage.STATUS_UPDATED,
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isActive: subscription.isActive,
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};
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}
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//************************************ */
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async subscribeToPlan(serviceId: string, subscribeDto: SubscribeServiceDto, userId: string) {
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const queryRunner = this.dataSource.createQueryRunner();
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await queryRunner.connect();
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await queryRunner.startTransaction();
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try {
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const user = await this.usersService.findOneByIdWithQueryRunner(userId, queryRunner);
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const plan = await queryRunner.manager.findOne(SubscriptionPlan, {
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where: { id: subscribeDto.planId, service: { id: serviceId } },
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relations: {
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service: true,
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discounts: true,
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},
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});
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if (!plan) throw new BadRequestException(SubscriptionMessage.NOT_FOUND);
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const startDate = new Date();
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const endDate = new Date();
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endDate.setDate(startDate.getDate() + plan.duration);
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//
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const userSubscription = queryRunner.manager.create(UserSubscription, { user, plan, startDate, endDate });
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await queryRunner.manager.save(UserSubscription, userSubscription);
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const userWallet = await this.walletsService.getWalletByUserId(user.id, queryRunner);
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let finalPrice = new Decimal(plan.price);
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if (plan.discounts && plan.discounts.length > 0) {
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plan.discounts.forEach((discount) => {
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if (discount.isActive && new Date() >= discount.startDate && new Date() <= discount.endDate) {
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if (discount.calculationType === DiscountCalculationType.PERCENTAGE) {
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const discountAmount = finalPrice.mul(discount.amount).div(100);
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finalPrice = finalPrice.sub(discountAmount);
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} else if (discount.calculationType === DiscountCalculationType.FIXED) {
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finalPrice = finalPrice.sub(discount.amount);
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}
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}
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});
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}
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plan.price = finalPrice;
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if (new Decimal(userWallet.balance).lessThan(finalPrice)) throw new BadRequestException(WalletMessage.INSUFFICIENT_BALANCE);
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// if (userWallet.balance < plan.price) throw new BadRequestException(WalletMessage.INSUFFICIENT_BALANCE);
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//
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userWallet.balance = new Decimal(userWallet.balance).sub(finalPrice);
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await queryRunner.manager.save(Wallet, userWallet);
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//
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await this.walletsService.createSubscriptionTransaction(finalPrice, userWallet.id, queryRunner);
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//TODO: need queue handling for notification
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const invoiceDueDate = new Date(userSubscription.endDate);
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invoiceDueDate.setDate(userSubscription.endDate.getDate() - 3);
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const invoice = await this.invoicesService.createInvoiceForSubscription(userId, plan, invoiceDueDate, queryRunner);
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userSubscription.status = SubscriptionStatus.ACTIVE;
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await queryRunner.manager.save(UserSubscription, userSubscription);
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await queryRunner.commitTransaction();
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return {
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message: SubscriptionMessage.SUBSCRIBED,
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userSubscription,
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invoice,
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};
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} catch (error) {
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await queryRunner.rollbackTransaction();
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throw error;
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} finally {
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await queryRunner.release();
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}
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}
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//************************************ */
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async getPlanRevenueAverage() {
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const currentYear = new Date().getFullYear();
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const startOfYear = new Date(currentYear, 0, 1);
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const endOfYear = new Date(currentYear, 11, 31);
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const result = await this.userSubscriptionsRepository
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.createQueryBuilder("userSubscription")
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.leftJoin("userSubscription.plan", "plan")
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.select("AVG(plan.price)", "averageRevenue")
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.where("userSubscription.startDate >= :startDate", { startDate: startOfYear })
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.andWhere("userSubscription.startDate <= :endDate", { endDate: endOfYear })
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.andWhere("userSubscription.status = :status", { status: SubscriptionStatus.ACTIVE })
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.getRawOne();
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return Number(result.averageRevenue) || 0;
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}
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async getPlansSalesCount() {
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const currentYear = new Date().getFullYear();
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const startOfYear = new Date(currentYear, 0, 1);
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const endOfYear = new Date(currentYear, 11, 31);
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return await this.userSubscriptionsRepository
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.createQueryBuilder("userSubscription")
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.where("userSubscription.startDate >= :startDate", { startDate: startOfYear })
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.andWhere("userSubscription.startDate <= :endDate", { endDate: endOfYear })
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.andWhere("userSubscription.status = :status", { status: SubscriptionStatus.ACTIVE })
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.getCount();
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}
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async getPlansSalesCountByMonthsInYear() {
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const now = new Date();
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const startOfYear = new Date(now.getFullYear(), 0, 1);
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const endOfYear = new Date(now.getFullYear(), 11, 31);
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const sales = await this.userSubscriptionsRepository
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.createQueryBuilder("userSubscription")
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.select("EXTRACT(MONTH FROM userSubscription.startDate)", "month")
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.addSelect("COUNT(*)", "count")
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.where("userSubscription.startDate >= :startDate", { startDate: startOfYear })
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.andWhere("userSubscription.startDate <= :endDate", { endDate: endOfYear })
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.andWhere("userSubscription.status = :status", { status: SubscriptionStatus.ACTIVE })
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.groupBy("EXTRACT(MONTH FROM userSubscription.startDate)")
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.orderBy("month", "ASC")
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.getRawMany();
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const salesByMonth = Array(12).fill(0);
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sales.forEach((sale) => {
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const month = parseInt(sale.month) - 1;
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salesByMonth[month] = parseInt(sale.count);
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});
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return salesByMonth;
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}
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async getPlansSalesCountByDaysInMonth() {
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const now = new Date();
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const startOfMonth = new Date(now.getFullYear(), now.getMonth(), 1);
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const endOfMonth = new Date(now.getFullYear(), now.getMonth() + 1, 0);
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const sales = await this.userSubscriptionsRepository
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.createQueryBuilder("userSubscription")
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.select("DATE(userSubscription.startDate)", "date")
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.addSelect("COUNT(*)", "count")
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.where("userSubscription.startDate >= :startDate", { startDate: startOfMonth })
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.andWhere("userSubscription.startDate <= :endDate", { endDate: endOfMonth })
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.andWhere("userSubscription.status = :status", { status: SubscriptionStatus.ACTIVE })
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.groupBy("DATE(userSubscription.startDate)")
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.orderBy("date", "ASC")
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.getRawMany();
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const daysInMonth = endOfMonth.getDate();
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const salesByDay = Array(daysInMonth).fill(0);
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sales.forEach((sale) => {
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const day = new Date(sale.date).getDate() - 1;
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salesByDay[day] = parseInt(sale.count);
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});
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return salesByDay;
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}
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async getPlansSalesCountByDaysInWeek() {
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const startOfWeek = dayjs().startOf("week").toDate();
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const endOfWeek = dayjs().endOf("week").toDate();
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console.log(startOfWeek, endOfWeek);
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const sales = await this.userSubscriptionsRepository
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.createQueryBuilder("userSubscription")
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.select("DATE(userSubscription.startDate)", "date")
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.addSelect("COUNT(*)", "count")
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.where("userSubscription.startDate >= :startDate", { startDate: startOfWeek })
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.andWhere("userSubscription.startDate <= :endDate", { endDate: endOfWeek })
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.andWhere("userSubscription.status = :status", { status: SubscriptionStatus.ACTIVE })
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.groupBy("DATE(userSubscription.startDate)")
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.orderBy("date", "ASC")
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.getRawMany();
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const salesByDay = Array(7).fill(0);
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sales.forEach((sale) => {
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const day = (dayjs(sale.date).day() + 1) % 7;
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salesByDay[day] = parseInt(sale.count);
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});
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return salesByDay;
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}
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async getSubscriptionGrowthRate() {
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const currentYear = new Date().getFullYear();
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const lastYear = currentYear - 1;
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const currentYearCount = await this.userSubscriptionsRepository
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.createQueryBuilder("userSubscription")
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.where("EXTRACT(YEAR FROM userSubscription.startDate) = :year", { year: currentYear })
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.andWhere("userSubscription.status = :status", { status: SubscriptionStatus.ACTIVE })
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.getCount();
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const lastYearCount = await this.userSubscriptionsRepository
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.createQueryBuilder("userSubscription")
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.where("EXTRACT(YEAR FROM userSubscription.startDate) = :year", { year: lastYear })
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.andWhere("userSubscription.status = :status", { status: SubscriptionStatus.ACTIVE })
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.getCount();
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if (lastYearCount === 0) return 100;
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const growthRate = ((currentYearCount - lastYearCount) / lastYearCount) * 100;
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return Math.round(growthRate * 100) / 100;
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}
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}
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