add tax to order

src/modules/order/dto/create-invoice.dto.ts

@@ -1,7 +1,8 @@
 import {
     IsInt, IsArray, IsNumber,
     IsNotEmpty,
-    ArrayMinSize
+    ArrayMinSize,
+    IsBoolean
 } from 'class-validator';
 import { ApiProperty } from '@nestjs/swagger';
 import { Type } from 'class-transformer';
@@ -36,6 +37,9 @@ export class CreateInvoiceDto {
     @Type(() => InvoiceItemDto)
     items: InvoiceItemDto[];
 
+    @ApiProperty()
+    @IsBoolean()
+    enableTax: boolean
 
 }
 

src/modules/order/entities/order.entity.ts

@@ -60,6 +60,9 @@ export class Order extends BaseEntity {
   @Property({ type: 'decimal', precision: 10, scale: 0 })
   subTotal!: number;
 
+  @Property({ type: 'decimal', precision: 10, scale: 0 })
+  taxAmount: number;
+
 
   // @Property({ type: 'decimal', precision: 10, scale: 0, default: 0 })
   // deliveryFee: number = 0;
@@ -75,6 +78,9 @@ export class Order extends BaseEntity {
 
   @Property({ type: 'decimal', precision: 10, scale: 0 })
   balance!: number;
+
+  @Property({ type: 'decimal', precision: 10, scale: 0, nullable: true })
+  dueDate?: number;
   // get balance(): number {
   //   return this._balance
   // }
@@ -88,6 +94,12 @@ export class Order extends BaseEntity {
   @Enum(() => OrderStatusEnum)
   status!: OrderStatusEnum;
 
+  @Property({ nullable: true, columnType: 'timestamptz' })
+  confirmedAt?: Date;
+
+  @Property({ type: 'json', nullable: true })
+  attachments?: string[]
+
   @BeforeCreate()
   async generateOrderNumber(args: EventArgs<Order>) {
     const em = args.em;

src/modules/order/providers/order.service.ts

@@ -1,4 +1,4 @@
-import { Injectable, NotFoundException, BadRequestException, Logger } from '@nestjs/common';
+import { Injectable, BadRequestException, Logger } from '@nestjs/common';
 import { EntityManager } from '@mikro-orm/postgresql';
 import { OrderItem } from '../entities/order-item.entity';
 import { OrderRepository } from '../repositories/order.repository';
@@ -53,7 +53,8 @@ export class OrderService {
         total: 0,
         paidAmount: 0,
         balance: 0,
-        status: OrderStatusEnum.DRAFT
+        status: OrderStatusEnum.DRAFT,
+        taxAmount: 0
       })
 
       em.persist(order)
@@ -128,7 +129,8 @@ export class OrderService {
         total,
         paidAmount: 0,
         balance: total,
-        status: OrderStatusEnum.INVOICED
+        status: OrderStatusEnum.INVOICED,
+        taxAmount: 0
       })
 
       em.persist(order)
@@ -200,7 +202,7 @@ export class OrderService {
   }
 
   async createInvoice(orderId: string, dto: CreateInvoiceDto) {
-    const { items } = dto
+    const { items, enableTax } = dto
 
     const targetOrder = await this.findOneOrFail(orderId)
 
@@ -236,8 +238,17 @@ export class OrderService {
       targetOrder.subTotal = subTotal
       targetOrder.discount = totalDiscount
 
-      targetOrder.total = subTotal - totalDiscount
-      targetOrder.balance = subTotal - totalDiscount
+      const total = subTotal - totalDiscount
+      let tax = 0
+
+      if (enableTax) {
+        tax = 0.1 * total
+      }
+
+      targetOrder.taxAmount = tax
+      targetOrder.total = total + tax
+      targetOrder.balance = total + tax
+
 
       // change status
       targetOrder.status = OrderStatusEnum.INVOICED