avegaraju

module UpdateProductDimensions

open Domain
open System

let find (productId:int, products: seq<Product>):Option<Product> =
    products
    |> Seq.tryPick<Product, Product>(fun x-> if x.ProductId = productId then Some(x) else None)

let update (productOption: Option<Product>, height, length, weight, width)=

avegaraju

member this.updateProductDimensionWorkflow(productId, (height,length,weight,width)) =
        productDimensionWorkflow.getProduct
        |> productDimensionWorkflow.updateProduct
        |> productDimensionWorkflow.notifyWarehouseWhenDimensionsUpdate

avegaraju

type Order(selectedPaymentMethod: PaymentMethod, 
           discountCode: Option<string>) =

let paymentMethod pm  =
         match pm with
            | x when x =  CashOnDelivery ->
                printfn "Cash on delivery"
            | Paypal id->
                printf "paid by paypal %A" id 
            | Card (cardNumber , cardType) ->

avegaraju

public class Order
{
  public OrderId Order{get;}
  public Option<String> DiscountCode {get;}
  
  //Constructor and other properies removed for brevity
}

avegaraju

private Result<Unit> ApplyDiscountWhenAvailable(Option<string> discountCode)
{
  return discountCode.Match(Some: ApplyDiscount,
                            None: () => Unit.Default);
}

private Result<Unit> ApplyDiscount(string discountCode)
{
    //mimic applying discount code (whatever that means)
    return Unit.Default;

avegaraju

type Order(paymentMethod: PaymentMethod, discountCode: Option<string>)=
//Other members removed for brevity
    member val PaymentMethod: PaymentMethod = paymentMethod with get
    member val DiscountCode: Option<String> = discountCode with get

avegaraju

public void PaymentMethod(object o)
{
    switch (o)
    {
        case string s when s.Contains("CashOnDelivery"):
            Console.WriteLine("cash on delivery");
            break;
        case Paypal pId when pId.Id != null:
            Console.WriteLine($"paypal {pId.Id}");
            break;

avegaraju

type CardType = 
    | Visa
    | MC

type PaypalId = 
    | Id of int

type CardNumber = 
    | Number of int

avegaraju

 public class Order
  {
      public OrderId OrderId { get; }
      public CustomerId CustomerId { get; }
      public IReadOnlyCollection<OrderLine> OrderLines { get; }
      public IPaymentMethod PaymentMethod {get;}
      public DiscountCode DiscountCode {get;}


      public Order(OrderId orderId,

avegaraju

[Property(Arbitrary = new[]
                      {
                          typeof (Generator)
                      })]
public void DiscountIsApplied_UponCheckout(decimal discount,
                                           decimal price)
{
    var productRequest = new ProductRequest()
                         {
                             Discount = discount,