using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Data;
using System.Windows.Media;
using Tango.BL.Entities;
using Tango.PPC.Common.Controls;

namespace Tango.PPC.Common.Converters
{
    public class SegmentsToPieConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            ObservableCollection<Segment> segments = value as ObservableCollection<Segment>;

            if (segments != null)
            {
                MultiPieChart pie = new MultiPieChart();

                pie.DataList = new List<Double>();

                if (segments.Count > 0)
                {
                    foreach (var segment in segments)
                    {
                        pie.DataList.Add(segment.Length);
                        pie.DataBrushes.Add(segment.GetSegmentBrush());
                    }
                }
                else
                {
                    pie.DataList.Add(10);
                    pie.DataBrushes.Add(new SolidColorBrush(Colors.Gainsboro));
                }

                return pie;
            }

            return null;
        }

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