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 Tango.BL.Entities;
using Tango.MachineStudio.Logging.Helpers;
using Tango.MachineStudio.Logging.ViewModels;

namespace Tango.MachineStudio.Logging.Converters
{
    public class MachineEventToXConverter : IMultiValueConverter
    {
        public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
        {
            if (values.Length == 3)
            {
                MachinesEvent ev = values[0] as MachinesEvent;

                if (ev != null)
                {
                    ObservableCollection<TimelineEventGroup> groups = values[1] as ObservableCollection<TimelineEventGroup>;

                    if (groups.Count > 0)
                    {
                        double scale = (double)values[2];

                        DateTime maxTime = groups.SelectMany(x => x.Events).Max(x => x.DateTime);
                        DateTime minTime = groups.SelectMany(x => x.Events).Min(x => x.DateTime);

                        TimeSpan range = maxTime - minTime;
                        TimeSpan time = maxTime - ev.DateTime;

                        time = range - time;

                        return TimelineHelper.ConvertTimeToPixels(time, scale);
                    }
                }
            }

            return 0.0;
        }

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