using System;
using System.Globalization;
using System.Windows;
using System.Windows.Data;

namespace Gestor.Application.Converters
{
	public class ExtensaoVisibilityConverter : IMultiValueConverter
	{
		public ExtensaoVisibilityConverter()
		{
		}

		public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
		{
			object obj;
			try
			{
				if (values[0] == null || values[1] == null)
				{
					obj = Visibility.Collapsed;
				}
				else if (values[0] == null || (long)values[0] <= (long)0)
				{
					obj = (values[1].ToString().ToLower() == ".pdf" ? Visibility.Visible : Visibility.Collapsed);
				}
				else
				{
					obj = Visibility.Collapsed;
				}
			}
			catch (Exception exception)
			{
				obj = Visibility.Collapsed;
			}
			return obj;
		}

		public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
		{
			if (value == null)
			{
				return Visibility.Collapsed;
			}
			if (value.ToString().ToLower() != ".pdf")
			{
				return Visibility.Collapsed;
			}
			return Visibility.Visible;
		}

		public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
		{
			return null;
		}
	}
}