inabox/InABox.Mobile/InABox.Mobile.Shared/Converters/IntToColorConverter.cs

using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using Xamarin.Forms;

namespace InABox.Mobile
{
    public class IntToColorConverterThreshold
    {
        public int Lower { get; set; }
        public int Upper { get; set; }
        public Color Color { get; set; }
    }
    
    public class IntToColorConverter: AbstractConverter<int,Color>
    {
        
        public IList<IntToColorConverterThreshold> Thresholds { get; private set; }
        
        public Color DefaultColor { get; set; }

        public IntToColorConverter()
        {
            Thresholds = new ObservableCollection<IntToColorConverterThreshold>();
        }
        
        protected override Color Convert(int value, object? parameter = null)
        {
            foreach (var threshold in Thresholds.OrderBy(x=>x.Lower))
            {
                if (value >= threshold.Lower && value <= threshold.Upper)
                    return threshold.Color;

            }
            return DefaultColor;
        }
    }
}