using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Controls;
using System.Windows.Data;

namespace Tango.MachineStudio.Statistics.Converters
{
    public class StringToBoolYesNoNullConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if(value is bool)
            {
                return (bool)value ? "Yes" : "No";
            }
            return "Null";
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            //throw new NotImplementedException();
            if (value is ComboBoxItem)
            {
                string str_val = ((ComboBoxItem)value).Content.ToString();
                if (str_val.ToUpper() == "NO")
                    return false;
                if (str_val.ToUpper() == "YES")
                    return true;
            }
            return null;
        }
    }
}