public ProductViewModel(Product product)
{
this.Product = product;
decimal shippingCost = this.Product.ShippingCost.Costs[ShippingType.NationalStandard];
this.PriceString = PriceStringUtilities.CreatePriceString(this.Product.Cost);
this.ShippingPriceString = $"+ {PriceStringUtilities.CreatePriceString(shippingCost)} s/h";
this.ShippingPriceVisibility = shippingCost == 0 ? Visibility.Collapsed : Visibility.Visible;
}
/// <summary>
/// Updates the strings that display the cost summary (e.g. sub-total, tax, etc.) of the shopping cart.
/// </summary>
private void UpdateCostsSummaryStrings()
{
ShoppingCartCostsSummary costsSummary = this.ShoppingCart.CostsSummary;
// Update values.
this.SubtotalString = PriceStringUtilities.CreatePriceString(costsSummary.ItemsSubtotal);
this.EstimatedShippingString = PriceStringUtilities.CreatePriceString(costsSummary.Shipping);
this.ShippingTypeString = ShippingTypeStringUtilities.GetFriendlyNameOfShippingType(this.ShoppingCart.ShippingType);
this.EstimatedTaxString = PriceStringUtilities.CreatePriceString(costsSummary.TotalTax);
this.TotalCostString = PriceStringUtilities.CreatePriceString(costsSummary.Total);
// Raise all the 'PropertyChanged' events.
this.RaisePropertyChanged(nameof(this.SubtotalString));
this.RaisePropertyChanged(nameof(this.EstimatedShippingString));
this.RaisePropertyChanged(nameof(this.ShippingTypeString));
this.RaisePropertyChanged(nameof(this.EstimatedTaxString));
this.RaisePropertyChanged(nameof(this.TotalCostString));
}
/// <summary>
/// Create the friendly name of a shipping option (including cost).
/// </summary>
public static string CreateShippingOptionTitle(ShippingType type, ShoppingCartCostsSummary costs, ShoppingCartCostsSummary currentTotalCost)
{
string shippingName = GetFriendlyNameOfShippingType(type);
if (costs.Total == currentTotalCost.Total)
{
return(shippingName);
}
else
{
decimal costDifference = costs.Total - currentTotalCost.Total;
if (costDifference >= 0)
{
return($"{shippingName}: +{PriceStringUtilities.CreatePriceString(costDifference)}");
}
else
{
return($"{shippingName}: -{PriceStringUtilities.CreatePriceString(-costDifference)}");
}
}
}