create invoice

src/modules/order/controllers/orders.controller.ts

@@ -10,6 +10,7 @@ import { UpdateOrderStatusDto } from '../dto/update-order-status.dto';
 import { Permissions } from 'src/common/decorators/permissions.decorator';
 import { Permission } from 'src/common/enums/permission.enum';
 import { CreateOrderDto } from '../dto/create-order.dto';
+import { CreateInvoiceDto } from '../dto/create-invoice.dto';
 
 @ApiTags('orders')
 @ApiBearerAuth()
@@ -37,18 +38,17 @@ export class OrdersController {
   @ApiQuery({ name: 'to', required: false, type: Date })
   @ApiOperation({ summary: 'Get all orders with pagination and filters' })
   async findAll(@Query() dto: FindOrdersDto, @UserId() userId: string) {
-    const orders=await this.ordersService.findAllForUser(userId, dto);
+    const orders = await this.ordersService.findAllForUser(userId, dto);
     return orders
   }
 
-  // @UseGuards(AuthGuard)
-  // @ApiOperation({ summary: 'Get an order By id for User' })
-  // @ApiParam({ name: 'orderId', description: 'Order ID' })
-
-  // @Get('public/orders/:orderId')
-  // findOne(@Param('orderId') orderId: string,) {
-  //   return this.ordersService.findOne(orderId,);
-  // }
+  @UseGuards(AuthGuard)
+  @ApiOperation({ summary: 'Create invoice for new order' })
+  @ApiParam({ name: 'orderId', description: 'Order ID' })
+  @Post('admin/orders/:orderId/create-invoice')
+  createInvoice(@Param('orderId') orderId: string, @Body() body: CreateInvoiceDto) {
+    return this.ordersService.createInvoice(orderId, body);
+  }
 
   // @UseGuards(AuthGuard)
   // @Patch('public/orders/:id/:status')

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

@@ -0,0 +1,40 @@
+import {
+    IsInt, IsArray, IsNumber,
+    IsNotEmpty,
+    ArrayMinSize
+} from 'class-validator';
+import { ApiProperty } from '@nestjs/swagger';
+import { Type } from 'class-transformer';
+
+export class InvoiceItemDto {
+    @IsInt()
+    @ApiProperty()
+    orderItemId: bigint;
+
+    @ApiProperty()
+    @IsNumber()
+    unitPrice: number
+
+}
+
+export class CreateInvoiceDto {
+    @IsArray()
+    @ApiProperty({
+        isArray: true, type: [InvoiceItemDto], example: [
+            {
+                productId: 1,
+                quantity: 100,
+                attributesValues: []
+            }
+        ]
+    })
+    @IsNotEmpty()
+    @ArrayMinSize(1, { message: 'At least one product is required' })
+    @Type(() => InvoiceItemDto)
+    items: InvoiceItemDto[];
+
+    @ApiProperty()
+    @IsNumber()
+    discount: number
+}
+

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

@@ -26,8 +26,6 @@ export class OrderItem extends BaseEntity {
   @Property({ type: 'decimal', precision: 10, scale: 0 })
   unitPrice!: number;
 
-  @Property({ type: 'decimal', precision: 10, scale: 0, default: 0 })
-  discount: number = 0;
 
   @Property({ type: 'decimal', precision: 10, scale: 0 })
   totalPrice!: number;

src/modules/order/interface/order.interface.ts

@@ -1,6 +1,6 @@
 export enum OrderStatusEnum {
   NEW = 'new',
-  INVOICE = 'invoice',
+  INVOICED = 'invoiced',
   PREPARING = 'preparing',
   COMPLETED = 'completed',
   CANCELED = 'canceled',

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

@@ -21,6 +21,7 @@ import { ProductRepository } from 'src/modules/product/repositories/product.repo
 import { TicketService } from 'src/modules/ticket/providers/tickets.service';
 import { TicketRepository } from 'src/modules/ticket/repositories/tickets.repository';
 import { TicketStatus } from 'src/modules/ticket/enums/ticket-status.enum';
+import { CreateInvoiceDto } from '../dto/create-invoice.dto';
 
 
 @Injectable()
@@ -77,7 +78,6 @@ export class OrdersService {
         const orderItem = this.orderItemRepository.create({
           order,
           attributesValues: item.attributesValues,
-          discount: 0,
           product,
           quantity: item.quantity,
           status: OrderItemStatus.PENDING,
@@ -108,4 +108,65 @@ export class OrdersService {
     const orders = await this.orderRepository.findAllPaginated({ userId, ...dto })
     return orders
   }
+
+  async findOneOrFail(orderId: string) {
+    const order = await this.orderRepository.findOne({ id: orderId },
+      { populate: ['items', 'items.product', 'payments'] })
+    if (!order) {
+      throw new BadRequestException('Order not found')
+    }
+    return order
+  }
+
+  async createInvoice(orderId: string, dto: CreateInvoiceDto) {
+    const { items, discount } = dto
+
+    const targetOrder = await this.findOneOrFail(orderId)
+
+    // set price for order items
+    // calculate order financials
+    // change status
+
+    if (items.length !== targetOrder.items.length) {
+      throw new BadRequestException("One or more order items price is not set")
+    }
+
+
+    const order = await this.em.transactional(async (em) => {
+
+      let subTotal = 0
+      // Calculate order item finnicials
+      for (const orderItem of targetOrder.items) {
+
+        const found = items.find(it => it.orderItemId === orderItem.id)
+        if (!found) {
+          throw new BadRequestException(`order item ${orderItem} not found`)
+        }
+        // TODO use Deciaml js to calculation
+        orderItem.unitPrice = found.unitPrice
+        orderItem.totalPrice = (found.unitPrice) * orderItem.quantity
+
+        subTotal += orderItem.totalPrice
+
+        em.persist(orderItem)
+
+      }
+
+      // calculate order financials
+      targetOrder.subTotal = subTotal
+      targetOrder.discount = discount
+
+      targetOrder.total = subTotal - discount
+
+      // change status
+      targetOrder.status = OrderStatusEnum.INVOICED
+
+      em.persist(targetOrder)
+
+
+      return targetOrder
+    })
+
+    return order
+  }
 }