using Engine.Core;

namespace Engine.Systems.Tween;

public static class TweenProjection1DExtensions
{
    private static readonly BoxedPool<Projection1D> boxedProjection1DPool = new(2);

    public static ITween TweenProjection1D(this Projection1D initialProjection1D, ITweenManager tweenManager, float duration, Projection1D targetProjection1D, System.Action<Projection1D> setMethod)
    {
        Boxed<Projection1D> boxedInitial = boxedProjection1DPool.Get(initialProjection1D);
        Boxed<Projection1D> boxedTarget = boxedProjection1DPool.Get(targetProjection1D);

        ITween tween = tweenManager.StartTween(duration,
            t => setMethod?.Invoke(
                new Projection1D(
                    boxedInitial.Value.Min.Lerp(boxedTarget.Value.Min, t),
                    boxedInitial.Value.Max.Lerp(boxedTarget.Value.Max, t)
                )
            )
        );

        tween.OnComplete(() =>
        {
            boxedProjection1DPool.Return(boxedInitial);
            boxedProjection1DPool.Return(boxedTarget);
        });

        return tween;
    }
}