using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using BuzzGUI.Interfaces;
using BuzzGUI.Common.Actions;

namespace BuzzGUI.Common.Actions.MachineActions
{
	public class DeletePatternAction : MachineAction
	{
		string name;
		int length;
		PatternClip data;

		public DeletePatternAction(IPattern p)
			: base(p.Machine)
		{
			this.name = p.Name;
			this.length = p.Length;
			this.data = new PatternClip(p);
		}

		protected override void DoAction()
		{
			var pat = Machine.Patterns.FirstOrDefault(p => p.Name == name);
			if (pat != null) Machine.DeletePattern(pat);
		}

		protected override void UndoAction()
		{
			Machine.CreatePattern(name, length);
			data.CopyTo(Machine.Patterns.First(p => p.Name == name));
		}


	}
}