using UnityEngine;
using UnityEngine.Playables;

namespace GameWrapper.Timeline.CommonAction
{
    /// <summary>
    /// 通用动作混合器行为
    /// 处理轨道级别的逻辑和多个Clip的混合
    /// </summary>
    public class CommonActionMixerBehaviour : PlayableBehaviour
    {
        private GameObject boundObject;

        public override void ProcessFrame(Playable playable, FrameData info, object playerData)
        {
            // 获取绑定的GameObject
            if (boundObject == null && playerData is GameObject go)
            {
                boundObject = go;
            }

            if (boundObject == null)
                return;

            // 遍历所有输入的Clip，找到当前正在播放的
            int inputCount = playable.GetInputCount();
            
            for (int i = 0; i < inputCount; i++)
            {
                float weight = playable.GetInputWeight(i);
                
                // 只处理权重大于0的输入（正在播放的Clip）
                if (weight > 0)
                {
                    ScriptPlayable<CommonActionBehaviour> inputPlayable = 
                        (ScriptPlayable<CommonActionBehaviour>)playable.GetInput(i);
                    
                    CommonActionBehaviour behaviour = inputPlayable.GetBehaviour();
                    
                    // 这里可以添加混合逻辑
                    // 例如：处理多个Clip同时作用于同一对象的情况
                }
            }
        }

        public override void OnPlayableDestroy(Playable playable)
        {
            boundObject = null;
        }
    }
}