using UnityEngine;
using UnityEngine.Rendering.Universal;
using UnityEngine.UI;

namespace Core.UI.UTool.UITween
{
    [System.Serializable]
    public class TweenGraphic : TweenBasic
    {
        // public CanvasGroup CanvasGroup;
        // public TweenLerpType TweenLerpType;

        public Color startColor;
        public Color endColor;
        public AnimationCurve startX = new AnimationCurve();

        public Graphic GetCanvasGroup(Object CanvasGroup)
        {
            Graphic graphic = CanvasGroup as Graphic;
            if (graphic == null)
            {
                GameObject gameObject = CanvasGroup as GameObject;
                if (gameObject != null)
                {
                    graphic = gameObject.GetComponent<Graphic>();
                }
            }

            return graphic;
        }

        protected override void ProPlay(UITweenController UITweenController,Object CanvasGroup, float allTime)
        {
            Graphic graphic = GetCanvasGroup(CanvasGroup);
            if (graphic == null)
            {
                return;
            }

            float t = _addTime * allTime;
            if (t > 1)
            {
                t = 1;
            }

            float v = startX.Evaluate(t);

            Color color = Color.Lerp(startColor, endColor, v);
            graphic.color = color;
        }

        protected override void ProRest(UITweenController uiTweenController,Object CanvasGroup)
        {
            Graphic graphic = GetCanvasGroup(CanvasGroup);
            if (graphic == null)
            {
                return;
            }

            graphic.color = startColor;
        }
    }
}