using System;
using System.ComponentModel;
using System.Globalization;
using System.Linq;
using System.Reflection;
using System.Windows.Data;

namespace Gestor.Common.Converters
{
	public class ObjectToStringConverter : IValueConverter
	{
		public readonly static ObjectToStringConverter Instance;

		static ObjectToStringConverter()
		{
			ObjectToStringConverter.Instance = new ObjectToStringConverter();
		}

		public ObjectToStringConverter()
		{
		}

		public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
		{
			Enum @enum = value as Enum;
			if (@enum == null)
			{
				if (value is DateTime)
				{
					return ((DateTime)value).ToShortDateString();
				}
				if (value == null)
				{
					return null;
				}
				return value.ToString();
			}
			MemberInfo[] member = @enum.GetType().GetMember(@enum.ToString());
			if (member.Length == 0)
			{
				return @enum.ToString();
			}
			object[] customAttributes = member[0].GetCustomAttributes(typeof(DescriptionAttribute), false);
			if (!customAttributes.Any<object>())
			{
				return @enum.ToString().Trim();
			}
			return ((DescriptionAttribute)customAttributes.ElementAt<object>(0)).Description.Trim();
		}

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