namespace Store.Management.Framework
{
	public static class MessageBoxServiceExtensions
	{
		extension(IMessageBoxService service)
		{
			public MessageResult ShowMessage(string messageBoxText, string caption, MessageButton button, MessageIcon icon, MessageResult defaultResult)
			{
				VerifyService(service);
				return service.Show(messageBoxText, caption, button, icon, defaultResult);
			}
			public bool? ShowMessage(string messageBoxText)
			{
				return service.ShowMessage(messageBoxText, string.Empty);
			}
			public bool? ShowMessage(string messageBoxText, string caption)
			{
				return service.ShowMessage(messageBoxText, caption, MessageButton.OK).ToBool();
			}
			public MessageResult ShowMessage(string messageBoxText, string caption, MessageButton button)
			{
				return service.ShowMessage(messageBoxText, caption, button, MessageIcon.None);
			}
			public MessageResult ShowMessage(string messageBoxText, string caption, MessageButton button, MessageIcon icon)
			{
				VerifyService(service);
				return service.Show(messageBoxText, caption, button, icon, MessageResult.None);
			}
		}

		static void VerifyService(IMessageBoxService service)
		{
			if (service == null)
				throw new ArgumentNullException(nameof(service));
		}
	}
}