using Cryville.Common;

namespace Cryville.Crtr.Components {
	public class SkinAnimation : SkinComponent {
		public SkinAnimation() {
			SubmitProperty("name", new PropOp.Identifier(v => Name = v));
			SubmitProperty("duration", new PropOp.Float(v => Duration = v));
			_rtimeSrc = new PropSrc.Float(() => _rtime);
		}

		SkinContext _skinContext;

		AnimationSpan _anim;
		public int Name {
			set {
				if (value == 0) return;
				var id = new Identifier(value);
				AnimationSpan anim;
				if (!ChartPlayer.pskin.animations.TryGetValue(id, out anim)) {
					Logger.Log("main", 4, "Skin", "Animation {0} not found", id.Name);
					_anim = null;
					return;
				}
				_anim = anim;
			}
		}
		public float Duration { get; private set; }

		double _startTime;
		float _rtime;
		readonly PropSrc _rtimeSrc;

		public override void Init() {
			_skinContext = new SkinContext(transform);
		}
		public override void Rewind(double time) {
			_startTime = time;
		}
		public override void Tick(SkinContainer c, double time) {
			_rtime = (float)(time - _startTime) / Duration;
			_rtimeSrc.Invalidate();
			ChartPlayer.etor.ContextSelfValue = _rtimeSrc;
			if (_anim != null) c.MatchAnimation(_anim, _rtime, new RuntimeSkinContext(_skinContext));
			ChartPlayer.etor.ContextSelfValue = null;
		}
		protected override void OnDestroy() { }
	}
}