using System;
using System.Linq;
using Telerik.Sitefinity.Configuration;
using Telerik.Sitefinity.Ecommerce.Catalog.Model;
using Telerik.Sitefinity.Ecommerce.Orders.Model;
using Telerik.Sitefinity.GenericContent.Model;
using Telerik.Sitefinity.Modules.Ecommerce.Catalog;
using Telerik.Sitefinity.Modules.Ecommerce.Configuration;
using Telerik.Sitefinity.Modules.Ecommerce.Orders;
using Telerik.Sitefinity.Modules.Ecommerce.Orders.Business;
using Telerik.Sitefinity.Modules.Ecommerce.Orders.Web.UI.CheckoutViews;
using Telerik.Sitefinity.Modules.Ecommerce.Shipping;

namespace SitefinityWebApp
{
    public class CreateCartOrderAndCheckout
    {
        public static void ProcessOrder()
        {
            CatalogManager catalogManager = CatalogManager.GetManager();
            OrdersManager ordersManager = OrdersManager.GetManager();

            Product product = catalogManager.GetProducts().FirstOrDefault(p => p.Title == ProductTitle &&
                p.Status == ContentLifecycleStatus.Live);

            CartOrder cartOrder = ordersManager.CreateCartOrder();
            cartOrder.OrderDate = DateTime.Now;
            cartOrder.OrderStatus = OrderStatus.Pending;
            var nextOrderNumber = ordersManager.GetNextOrderNumber();
            cartOrder.OrderNumber = nextOrderNumber.Next;
            cartOrder.OrderDate = DateTime.Now;
            cartOrder.LastModified = DateTime.Now;
            cartOrder.OrderAttempts = 0;
            var currency = Config.Get<EcommerceConfig>().DefaultCurrency;
            cartOrder.Currency = currency;
            Customer customer = ordersManager.GetCustomers()
                .FirstOrDefault(c => c.CustomerFirstName == CustomerFirstName && c.CustomerLastName == CustomerLastName);

            cartOrder.UserId = customer.Id;

            CartDetail orderDetail = new CartDetail();
            orderDetail.Id = Guid.NewGuid();
            orderDetail.ProductId = product.Id;
            orderDetail.Quantity = 1;
            orderDetail.Sku = product.Title;
            orderDetail.ProductAvailable = true;
            orderDetail.Price = product.Price;
            orderDetail.IsShippable = true;
            cartOrder.Details.Add(orderDetail);

            CheckoutState state = UpdateCheckoutState(customer, ordersManager, cartOrder);
            UpdateCartDetails(state, ordersManager, customer, cartOrder);

            ordersManager.SaveChanges();

            EcommerceOrderCalculator calculator = new EcommerceOrderCalculator();
            calculator.CalculateAndSaveChanges(cartOrder);

            ordersManager.Checkout(cartOrder.Id, state, customer);

            ordersManager.SaveChanges();
            catalogManager.SaveChanges();
        }

        public static CheckoutState UpdateCheckoutState(Customer customer, OrdersManager ordersManager, CartOrder cartOrder)
        {
            ShippingManager shippingManager = ShippingManager.GetManager();

            CheckoutState checkoutState = new CheckoutState();

            var shippingMethod = shippingManager.GetShippingMethods().FirstOrDefault();

            cartOrder.ShippingMethodId = shippingMethod.Id;

            checkoutState.ShippingMethodId = shippingMethod.Id;
            checkoutState.ShippingServiceName = shippingMethod.Name;

            checkoutState.ShippingFirstName = customer.CustomerFirstName;
            checkoutState.ShippingLastName = customer.CustomerLastName;
            checkoutState.ShippingCompany = Company;
            checkoutState.ShippingEmail = customer.CustomerEmail;
            checkoutState.ShippingAddress1 = AdressOne;
            checkoutState.ShippingAddress2 = AdressTwo;
            checkoutState.ShippingCity = City;
            checkoutState.ShippingCountry = Country;
            checkoutState.ShippingCountryName = Country;
            checkoutState.ShippingZip = Zip;
            checkoutState.ShippingPhoneNumber = Phone;

            checkoutState.BillingFirstName = customer.CustomerFirstName;
            checkoutState.BillingLastName = customer.CustomerLastName;
            checkoutState.BillingCompany = Company;
            checkoutState.BillingEmail = customer.CustomerEmail;
            checkoutState.BillingAddress1 = AdressOne;
            checkoutState.BillingAddress2 = AdressTwo;
            checkoutState.BillingCity = City;
            checkoutState.BillingCountry = Country;
            checkoutState.BillingCountryName = Country;
            checkoutState.BillingZip = Zip;
            checkoutState.BillingPhoneNumber = Phone;

            checkoutState.OrderRequiresShipping = true;

            return checkoutState;
        }

        private static void UpdateCartDetails(CheckoutState checkoutState, OrdersManager ordersManager, Customer customer, CartOrder cartOrder)
        {
            CartAddress shippingAddress = null;
            if (checkoutState.OrderRequiresShipping)
            {
                shippingAddress = ordersManager.CreateCartAddress();

                shippingAddress.FirstName = checkoutState.ShippingFirstName;
                shippingAddress.LastName = checkoutState.ShippingLastName;
                shippingAddress.Address = checkoutState.ShippingAddress1;
                shippingAddress.Address2 = checkoutState.ShippingAddress2;
                shippingAddress.AddressType = AddressType.Shipping;
                shippingAddress.City = checkoutState.ShippingCity;
                shippingAddress.PostalCode = checkoutState.ShippingZip;
                shippingAddress.StateRegion = checkoutState.ShippingState;
                shippingAddress.Country = checkoutState.ShippingCountry;
                shippingAddress.Phone = checkoutState.ShippingPhoneNumber;
                shippingAddress.Email = checkoutState.ShippingEmail;
                shippingAddress.Company = checkoutState.ShippingCompany;
                shippingAddress.County = checkoutState.ShippingCounty;

                cartOrder.Addresses.Add(shippingAddress);
            }

            var billingAddress = ordersManager.CreateCartAddress();

            billingAddress.FirstName = checkoutState.BillingFirstName;
            billingAddress.LastName = checkoutState.BillingLastName;
            billingAddress.Address = checkoutState.BillingAddress1;
            billingAddress.Address2 = checkoutState.BillingAddress2;
            billingAddress.AddressType = AddressType.Billing;
            billingAddress.City = checkoutState.BillingCity;
            billingAddress.PostalCode = checkoutState.BillingZip;
            billingAddress.StateRegion = checkoutState.BillingState;
            billingAddress.Country = checkoutState.BillingCountry;
            billingAddress.Phone = checkoutState.BillingPhoneNumber;
            billingAddress.Email = checkoutState.BillingEmail;
            billingAddress.Company = checkoutState.BillingCompany;
            billingAddress.County = checkoutState.BillingCounty;

            cartOrder.Addresses.Add(billingAddress);

            decimal vatTaxAmount = cartOrder.VatTaxAmount.HasValue ? cartOrder.VatTaxAmount.Value : 0;
            checkoutState.SubTotal = cartOrder.SubTotalDisplay + vatTaxAmount;
            checkoutState.TotalWeight = cartOrder.Weight;
            checkoutState.Tax = cartOrder.Tax;
            checkoutState.ShippingAmount = cartOrder.ShippingTotal;
            checkoutState.ShippingTax = cartOrder.ShippingTax;
            checkoutState.ShippingTaxRate = cartOrder.ShippingTaxRate;
            checkoutState.DiscountAmount = cartOrder.DiscountTotal;
            checkoutState.Total = cartOrder.Total;

            var paymentmethod = ordersManager.GetPaymentMethods().FirstOrDefault();
            checkoutState.PaymentMethodId = paymentmethod.Id;
            checkoutState.PaymentMethodType = paymentmethod.PaymentMethodType;

            CartPayment cartPayment = ordersManager.CreateCartPayment();
            cartPayment.PaymentMethodId = paymentmethod.Id;
            cartPayment.PaymentMethodType = paymentmethod.PaymentMethodType;
            cartPayment.CreditCardCustomerName = customer.CustomerFirstName;
            cartPayment.CreditCardNumber = CreditCardNumber;

            cartOrder.Payments.Add(cartPayment);
        }

        private const string ProductTitle = "DVD Movie";
        private const string CustomerFirstName = "John";
        private const string CustomerLastName = "Doe";
        private const string Country = "Test Country";
        private const string City = "Test city";
        private const string Zip = "6000";
        private const string AdressOne = "Adresss line 1";
        private const string AdressTwo = "Address line 2";
        private const string Company = "Test company";
        private const string Phone = "359123456";
        private const string CreditCardNumber = "123456789";
    }
}