payment on deleivery

src/modules/payment/DTO/payment.dto.ts

@@ -8,6 +8,9 @@ class PriceDetailDTO {
   @Expose()
   shipping_cost: number;
 
+  @Expose()
+  shipping_cost_on_delivery: number;
+
   @Expose()
   process_cost: number;
 

src/modules/payment/models/Abstraction/IPayments.ts

@@ -16,6 +16,7 @@ export interface ICartPayment {
 
 export interface IPriceDetails {
   shipping_cost: number;
+  shipping_cost_on_delivery: number;
   process_cost: number;
   total_retail_price: number;
   total_payable_price: number;

src/modules/payment/models/payments.model.ts

@@ -6,6 +6,7 @@ import { PaymentStatus } from "../../../common/enums/order.enum";
 const PaymentPriceDetails = new Schema<IPriceDetails>(
   {
     shipping_cost: { type: Number, required: true },
+    shipping_cost_on_delivery: { type: Number, default: 0 },
     process_cost: { type: Number, required: true },
     total_retail_price: { type: Number, required: true },
     total_discount: { type: Number, default: 0 },

src/modules/payment/providers/payment.service.ts

@@ -21,6 +21,7 @@ import { OrderService } from "../../order/order.service";
 import { PricingRepository } from "../../pricing/pricing.repository";
 import { ProductService } from "../../product/providers/product.service";
 import { ShopRepo } from "../../shop/shop.repository";
+import { ShipmentRepository } from "../../shipment/shipment.repository";
 import { IUser } from "../../user/models/Abstraction/IUser";
 import { WalletService } from "../../wallet/wallet.service";
 import { CartCheckoutDTO } from "../DTO/cartCheckout.dto";
@@ -46,6 +47,7 @@ class PaymentService {
   @inject(IOCTYPES.WalletService) walletService: WalletService;
   @inject(IOCTYPES.NotificationService) notificationService: NotificationService;
   @inject(IOCTYPES.ShopRepo) shopRepo: ShopRepo;
+  @inject(IOCTYPES.ShipmentRepository) shipmentRepo: ShipmentRepository;
 
   //##################################################################
   //##################################################################
@@ -98,7 +100,7 @@ class PaymentService {
 
     if (!paymentMethods) throw new BadRequestError(PaymentMessage.PaymentMethodsNotFound);
 
-    const { price } = this.calculateTotalPrice(cart, cartShipmentItems);
+    const { price } = await this.calculateTotalPrice(cart, cartShipmentItems);
     return {
       cart,
       cartShipmentItems,
@@ -135,7 +137,7 @@ class PaymentService {
       const paymentMethod = await this.paymentMethodRepo.findById(cartCheckoutDto.payment_method_id);
       if (!paymentMethod) throw new BadRequestError(PaymentMessage.PaymentMethodNotFound);
 
-      const { price, description } = this.calculateTotalPrice(cart, cartShipmentItems);
+      const { price, description } = await this.calculateTotalPrice(cart, cartShipmentItems);
 
       // extracted to handle payment creation
       const { payment, paymentData } = await this.handlePaymentCreation(paymentMethod, price, user, description, session);
@@ -238,26 +240,33 @@ class PaymentService {
   //##################################################################
   //##################################################################
   // Helper method to calculate the total price of cart items
-  private calculateTotalPrice(cart: CartDTO, cartShipItem: ICartShipmentItem[]) {
+  private async calculateTotalPrice(cart: CartDTO, cartShipItem: ICartShipmentItem[]) {
     const totalShippingCost = cartShipItem.reduce(
       (sum, item) => sum + item.shipmentItems.reduce((subSum, shipmentItem) => subSum + shipmentItem.shipmentCost, 0),
       0,
     );
 
-    // const totalCouponDiscount = cartShipItem.reduce((sum, item) => sum + item.totalCouponDiscount, 0);
+    const shipperIds = [...new Set(cartShipItem.map((item) => item.shipper))];
-    // const totalShippingCost = cartShipItem.reduce((sum, item) => sum + item.shipmentCost, 0);
+    const shippers = await this.shipmentRepo.model.find({ _id: { $in: shipperIds } }).select("_id payDeliveryFeeOnDelivery").lean();
+    const payOnDeliveryShipperIds = new Set(
+      shippers.filter((shipper) => shipper.payDeliveryFeeOnDelivery).map((shipper) => shipper._id),
+    );
+
+    const onlineShippingCost = cartShipItem.reduce((sum, item) => {
+      const itemShippingCost = item.shipmentItems.reduce((subSum, shipmentItem) => subSum + shipmentItem.shipmentCost, 0);
+      return sum + (payOnDeliveryShipperIds.has(item.shipper) ? 0 : itemShippingCost);
+    }, 0);
+    const shippingCostOnDelivery = totalShippingCost - onlineShippingCost;
 
     const price = {
-      shipping_cost: totalShippingCost,
+      shipping_cost: onlineShippingCost,
-      //   process_cost: totalShippingCost,
+      shipping_cost_on_delivery: shippingCostOnDelivery,
       process_cost: 0,
       cart_retail_price: cart.retail_price,
-      //   cart_payable_price: cart.payable_price - cart.coupon_discount,
       cart_payable_price: cart.payable_price,
       total_discount: cart.total_discount,
       coupon_discount: cart.coupon_discount,
-      //   total_payable_price: cart.payable_price + totalShippingCost * 2,
+      total_payable_price: cart.isWholeSale ? cart.retail_price + onlineShippingCost : cart.payable_price + onlineShippingCost,
-      total_payable_price: cart.isWholeSale ? cart.retail_price + totalShippingCost : cart.payable_price + totalShippingCost,
     };
 
     const items = cart.items;
@@ -357,6 +366,7 @@ class PaymentService {
 
     const priceDetails: Partial<IPriceDetails> = {
       shipping_cost: price.shipping_cost,
+      shipping_cost_on_delivery: price.shipping_cost_on_delivery,
       process_cost: price.process_cost,
       total_retail_price: price.cart_retail_price,
       total_discount: price.total_discount,

src/modules/shipment/DTO/createShipmentProviders.dto.ts

@@ -1,5 +1,5 @@
 import { Expose, Type } from "class-transformer";
-import { ArrayMinSize, IsArray, IsNotEmpty, IsNumber, IsString, ValidateNested } from "class-validator";
+import { ArrayMinSize, IsArray, IsBoolean, IsNotEmpty, IsNumber, IsOptional, IsString, ValidateNested } from "class-validator";
 
 import { ApiProperty } from "../../../common/decorator/swggerDocs";
 
@@ -71,4 +71,14 @@ export class CreateShipProvidersDTO {
   @IsNumber()
   @ApiProperty({ type: "number", description: "Delivery time in days", example: 3 })
   deliveryTime: number;
+
+  @Expose()
+  @IsOptional()
+  @IsBoolean()
+  @ApiProperty({
+    type: "boolean",
+    description: "If true, delivery fee must be paid at delivery time instead of checkout",
+    example: false,
+  })
+  payDeliveryFeeOnDelivery?: boolean;
 }

src/modules/shipment/DTO/shipment.dto.ts

@@ -41,6 +41,9 @@ class ShipperInfoDTO {
   @Expose()
   totalShippingCost: number;
 
+  @Expose()
+  payDeliveryFeeOnDelivery: boolean;
+
   @Expose()
   @Type(() => ShipperItemsDTO)
   items: ShipperItemsDTO[];
@@ -89,4 +92,7 @@ export class ShipmentMethodDTO {
 
   @Expose()
   deliveryType: string;
+
+  @Expose()
+  payDeliveryFeeOnDelivery: boolean;
 }

src/modules/shipment/models/Abstraction/IShipmentProviders.ts

@@ -7,6 +7,7 @@ export interface IShipmentProviders {
   costs: IShipmentCost[];
   deliveryType: DeliveryType;
   deliveryTime: number;
+  payDeliveryFeeOnDelivery: boolean;
   deleted: boolean;
 }
 export interface IShipmentCost {

src/modules/shipment/models/shipment.model.ts

@@ -27,6 +27,7 @@ const ShipmentSchema = new Schema<IShipmentProviders>(
     costs: [ShipmentCostSchema],
     deliveryType: { type: String, enum: DeliveryType, required: true },
     deliveryTime: { type: Number, required: true },
+    payDeliveryFeeOnDelivery: { type: Boolean, default: false },
     deleted: { type: Boolean, default: false },
   },
   { timestamps: true, toJSON: { versionKey: false }, _id: false, id: false },

src/modules/shipment/shipment.service.ts

@@ -35,7 +35,7 @@ class ShipmentService {
   //###################################################################
   //###################################################################
   async createShipmentProviderS(createDto: CreateShipProvidersDTO) {
-    const existShipper = await this.shipmentRepo.model.exists({ name: createDto.name });
+    const existShipper = await this.shipmentRepo.model.exists({ name: createDto.name, deleted: false });
     if (existShipper) throw new BadRequestError(CommonMessage.DuplicateName);
 
     const deliveryType = this.getDeliveryType(createDto.deliveryTime);
@@ -48,7 +48,7 @@ class ShipmentService {
 
   //###################################################################
   async updateShipmentProvider(shipmentId: number, updateDto: UpdateShipmentProviderDTO) {
-    const existShipper = await this.shipmentRepo.model.exists({ name: updateDto.name, _id: { $ne: shipmentId } });
+    const existShipper = await this.shipmentRepo.model.exists({ name: updateDto.name, _id: { $ne: shipmentId }, deleted: false });
     if (existShipper) throw new BadRequestError(CommonMessage.DuplicateName);
 
     if (updateDto.deliveryTime) {
@@ -157,6 +157,7 @@ class ShipmentService {
           shipperName: shipmentProvider.name,
           shippingDaysRange: this.calculateShippingDays(shipmentProvider.deliveryType, shipmentProvider.deliveryTime),
           totalShippingCost,
+          payDeliveryFeeOnDelivery: shipmentProvider.payDeliveryFeeOnDelivery ?? false,
           items: shipperItems,
         });
       }
@@ -230,15 +231,25 @@ class ShipmentService {
       }));
 
       if (existingCartShipmentItem) {
-        // update the existing CartShipmentItem
+        const totalSellingPrice = shipmentItems.reduce((acc, item) => acc + item.selling_price * item.quantity, 0);
+        const totalRetailPrice = shipmentItems.reduce((acc, item) => acc + item.retail_price * item.quantity, 0);
+        const totalShipmentCost = shipmentItems.reduce((acc, item) => acc + item.shipmentCost, 0);
+        const onlineShipmentCost = selectedShipper.payDeliveryFeeOnDelivery ? 0 : totalShipmentCost;
+
         existingCartShipmentItem.shipmentItems = shipmentItems;
         existingCartShipmentItem.shipper = selectedShipper.shipperId;
+        existingCartShipmentItem.totalSellingPrice = totalSellingPrice;
+        existingCartShipmentItem.totalRetailPrice = totalRetailPrice;
+        existingCartShipmentItem.totalShipmentCost = totalShipmentCost;
+        existingCartShipmentItem.totalPaymentPrice = totalSellingPrice + onlineShipmentCost;
+        existingCartShipmentItem.itemsCount = shipmentItems.reduce((acc, item) => acc + item.quantity, 0);
 
         await existingCartShipmentItem.save();
       } else {
         const totalSellingPrice = shipmentItems.reduce((acc, item) => acc + item.selling_price * item.quantity, 0);
         const totalRetailPrice = shipmentItems.reduce((acc, item) => acc + item.retail_price * item.quantity, 0);
         const totalShipmentCost = shipmentItems.reduce((acc, item) => acc + item.shipmentCost, 0);
+        const onlineShipmentCost = selectedShipper.payDeliveryFeeOnDelivery ? 0 : totalShipmentCost;
 
         // create a new CartShipmentItem
         await this.cartShipItemRepo.model.create({
@@ -249,7 +260,7 @@ class ShipmentService {
           totalSellingPrice,
           totalRetailPrice,
           totalShipmentCost,
-          totalPaymentPrice: totalShipmentCost + totalSellingPrice,
+          totalPaymentPrice: totalSellingPrice + onlineShipmentCost,
           itemsCount: shipmentItems.reduce((acc, item) => acc + item.quantity, 0),
         });
       }
@@ -261,12 +272,15 @@ class ShipmentService {
       (sum, item) => sum + item.shipmentItems.reduce((subSum, shipmentItem) => subSum + shipmentItem.shipmentCost, 0),
       0,
     );
+    const onlineShippingCost = cartShipmentItems.reduce((sum, item) => sum + (item.totalPaymentPrice - item.totalSellingPrice), 0);
 
     return {
       cartShipmentItems: cartShipmentItems,
       shippingCost: totalShippingCost,
-      processCost: totalShippingCost,
+      onlineShippingCost,
-      payable_price: cart.payable_price + totalShippingCost * 2,
+      shippingCostOnDelivery: totalShippingCost - onlineShippingCost,
+      processCost: onlineShippingCost,
+      payable_price: cart.payable_price + onlineShippingCost,
     };
   }