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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.PPC.Jobs.Models;

namespace Tango.PPC.Jobs.UndoRedoCommands
{
    public class RepeatCommand : IUndoRedoCommand
    {
        private JobModel _jobModel;
        private List<SegmentModel> _selectedSegments;

        public RepeatCommand(JobModel job)
        {
            _jobModel = job;

            _selectedSegments = new List<SegmentModel>();
            for (int index = 0; index < _jobModel.Segments.Count; index++)
            {
                var segment = _jobModel.Segments[index];
                if (segment.IsSelected && false == segment.IsGroupSegment)
                {
                    _selectedSegments.Add(segment);
                }
                else if (_selectedSegments.Count > 0)
                {
                    break;
                }
            }
        }

        public void Execute()
        {
            if (_selectedSegments.Count == 0)
                return;
            _jobModel.LastNewGroupID++;
            SegmentsGroupModel group = new SegmentsGroupModel(_selectedSegments) { GroupID = _jobModel.LastNewGroupID };
            _selectedSegments.ForEach(x => { x.SegmentsGroupModel = group; x.IsSelected = false; });
           
            _jobModel.LoadGroupingSegments();
        }

        public void UnExecute()
        {
            if (_selectedSegments.Count == 0)
                return;
            _selectedSegments.ForEach(x => { x.SegmentsGroupModel = null; });
            _jobModel.LastNewGroupID--;
            _jobModel.LoadGroupingSegments();
        }
    }
}