using System;
using System.Windows.Data;

namespace JD.WPF.Converters
{
    public class EnumToStringConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if (!(value is Enum))
                throw new NotSupportedException("This converter only supports Enum values. ");
            return value.ToString();
        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if (!(value is string))
                throw new NotSupportedException("This converter only supports string values for reverse conversions. ");
            if (!(parameter is Type) || !((Type)parameter).IsEnum)
                throw new InvalidOperationException("An enum type must be provided as parameter to proceed to a reverse conversion from a string value. ");

            Type enumType = (Type)parameter;
            return Enum.Parse(enumType, (string)value, true);
        }
    }
}