chore: add service to approve a invoice by user

src/common/enums/message.enum.ts

@@ -335,6 +335,11 @@ export const enum InvoiceMessage {
   CREATED = "فاکتور با موفقیت ایجاد شد",
   SEARCH_QUERY_MUST_BE_A_STRING = "رشته جستجو باید یک رشته باشد",
   NOT_FOUND_BY_ID = "فاکتوری با این شناسه یافت نشد",
+  APPROVED = "فاکتور با موفقیت تایید شد",
+  ALREADY_APPROVED = "فاکتور قبلا تایید شده است",
+  INVOICE_CAN_NOT_APPROVED = "فاکتور قابل تایید نیست",
+  INVOICE_ALREADY_PAID = "فاکتور قبلا پرداخت شده است",
+  INVOICE_IS_OVERDUE = "فاکتور منقضی شده است",
 }
 
 export const enum LearningMessage {

src/modules/invoices/enums/invoice-status.enum.ts

@@ -1,4 +1,5 @@
 export enum InvoiceStatus {
+  APPROVED = "APPROVED",
   PENDING = "PENDING",
   PAID = "PAID",
   EXPIRED = "EXPIRED",

src/modules/invoices/invoices.controller.ts

@@ -1,4 +1,4 @@
-import { Body, Controller, Get, Param, Post, Query } from "@nestjs/common";
+import { Body, Controller, Get, Param, Patch, Post, Query } from "@nestjs/common";
 import { ApiOperation } from "@nestjs/swagger";
 
 import { ApplyDiscountDto } from "./DTO/apply-discount-invoice.dto";
@@ -48,6 +48,13 @@ export class InvoicesController {
     return this.invoiceService.getInvoiceById(paramDto.id, isAdmin, userId);
   }
 
+  @ApiOperation({ summary: "approve invoice by user" })
+  @AuthGuards()
+  @Patch(":id/approve")
+  approveInvoiceByUser(@Param() paramDto: ParamDto, @UserDec("id") userId: string) {
+    return this.invoiceService.approveInvoiceByUser(paramDto.id, userId);
+  }
+
   @Post(":id/apply-discount")
   async applyDiscount(@Param() paramDto: ParamDto, @Body() applyDiscountDto: ApplyDiscountDto) {
     return this.invoiceService.applyDiscount(paramDto.id, applyDiscountDto);

src/modules/invoices/providers/invoices.service.ts

@@ -1,5 +1,6 @@
 import { BadRequestException, Injectable } from "@nestjs/common";
 // eslint-disable-next-line import/no-named-as-default
+import dayjs from "dayjs";
 import Decimal from "decimal.js";
 import { QueryRunner } from "typeorm";
 
@@ -59,7 +60,27 @@ export class InvoicesService {
       invoice,
     };
   }
+  ///********************************** */
 
+  async approveInvoiceByUser(invoiceId: string, userId: string) {
+    const invoice = await this.invoiceRepository.findOneBy({ id: invoiceId, user: { id: userId } });
+    if (!invoice) throw new BadRequestException(InvoiceMessage.NOT_FOUND_BY_ID);
+
+    if (invoice.status === InvoiceStatus.APPROVED) throw new BadRequestException(InvoiceMessage.ALREADY_APPROVED);
+    if (invoice.status === InvoiceStatus.PAID) throw new BadRequestException(InvoiceMessage.INVOICE_ALREADY_PAID);
+    if (dayjs().isAfter(invoice.dueDate)) throw new BadRequestException(InvoiceMessage.INVOICE_IS_OVERDUE);
+
+    if (invoice.status !== InvoiceStatus.PENDING) throw new BadRequestException(InvoiceMessage.INVOICE_CAN_NOT_APPROVED);
+
+    invoice.status = InvoiceStatus.APPROVED;
+
+    await this.invoiceRepository.save(invoice);
+
+    return {
+      message: InvoiceMessage.APPROVED,
+      invoice,
+    };
+  }
   ///********************************** */
 
   async createInvoiceForSubscription(userId: string, plan: SubscriptionPlan, dueDate: Date, queryRunner: QueryRunner) {