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

namespace Tango.MachineStudio.Statistics.Converters
{
    public class MidTankLevelToElementHeightConverter : IMultiValueConverter
    {
        public const double MAX_QUANTITY = 130000000;
        public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
        {
            try
            {
                double parentActualHeight;
                Double.TryParse(values[0].ToString(), out parentActualHeight);
                double quantity;
                Double.TryParse(values[1].ToString(), out quantity);
                
                double  midTankLevel = (double)Math.Min(quantity, MAX_QUANTITY);
                double delta = ((midTankLevel / MAX_QUANTITY) * parentActualHeight);
                if (quantity > 0 && midTankLevel < (MAX_QUANTITY/10))// if quantity < 10|% set 2 pixel 
                    delta = 2.0;
                var test = delta;
                return parentActualHeight - delta;
            }
            catch
            {
                return 0d;
            }
        }

        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }
}