using System;
using System.Globalization;
using System.Text.RegularExpressions;
using System.Windows;
using System.Windows.Data;
using System.Windows.Markup;

namespace Gestor.Application.Converters
{
	public class TelefoneToVisibilityConverter : MarkupExtension, IValueConverter
	{
		public TelefoneToVisibilityConverter()
		{
		}

		public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
		{
			if (value == null || (string)value == "")
			{
				return Visibility.Visible;
			}
			return (Regex.Match((string)value, "^[0-9]{4} [0-9]{3} [0-9]{4}$").Success ? Visibility.Collapsed : Visibility.Visible);
		}

		public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
		{
			return value;
		}

		public override object ProvideValue(IServiceProvider serviceProvider)
		{
			return this;
		}
	}
}