using System;
using PayPalCheckoutSdk.Core;
using PayPalCheckoutSdk.Orders;
using PayPalHttp;
using System.Collections.Generic;
using System.Threading.Tasks;

public class CaptureOrderSample
{
    static String clientId = "PAYPAL-CLIENT-ID";
    static String secret = "PAYPAL-CLIENT-SECRET";

    public static HttpClient client()
    {
    // Creating a sandbox environment
    PayPalEnvironment environment = new SandboxEnvironment(clientId, secret);

    // Creating a client for the environment
    PayPalHttpClient client = new PayPalHttpClient(environment);
    return client;
    }
}

public async static Task<HttpResponse> createOrder()
 {
         HttpResponse response;
        // Construct a request object and set desired parameters
        // Here, OrdersCreateRequest() creates a POST request to /v2/checkout/orders
        var order = new OrderRequest() {
                CheckoutPaymentIntent = "CAPTURE",
                PurchaseUnits = new List<PurchaseUnitRequest>()
                {
                    new PurchaseUnitRequest()
                    {
                        Amount = new AmountWithBreakdown()
                        {
                            CurrencyCode = "USD",
                            Value = "100.00"
                        }
                    }
                },
                ApplicationContext = new ApplicationContext()
                {
                    ReturnUrl = "https://www.example.com",
                    CancelUrl = "https://www.example.com"
                }
            };


            // Call API with your client and get a response for your call
            var request = new OrdersCreateRequest();
            request.Prefer("return=representation");
            request.RequestBody(order);
            response = await client().Execute(request);
            var statusCode = response.StatusCode;
            Order result = response.Result<Order>();
            Console.WriteLine("Status: {0}", result.Status);
            Console.WriteLine("Order Id: {0}", result.Id);
            Console.WriteLine("Intent: {0}", result.Intent);
            Console.WriteLine("Links:");
            foreach (LinkDescription link in result.Links)
            {
                 Console.WriteLine("\t{0}: {1}\tCall Type: {2}", link.Rel, link.Href, link.Method);
            }
            return response;
    }

  public async static Task<HttpResponse> captureOrder()
    {
            // Construct a request object and set desired parameters
            // Replace ORDER-ID with the approved order id from create order
            var request = new OrdersCaptureRequest("APPROVED-ORDER-ID");
            request.RequestBody(new OrderActionRequest());
            HttpResponse response = await client().Execute(request);
            var statusCode = response.StatusCode;
            Order result = response.Result<Order>();
            Console.WriteLine("Status: {0}", result.Status);
            Console.WriteLine("Capture Id: {0}", result.Id);
            return response;
    }