using PhxhSDK;
using UnityEditor;
using UnityEngine;
using UnityEngine.Playables;

public class InstantiatePlayable : PlayableBehaviour
{
    /// <summary>
    /// 道具路径
    /// </summary>
    private string itemPath;
    /// <summary>
    /// 轨道名
    /// </summary>
    private string trackName;
    /// <summary>
    /// Timeline
    /// </summary>
    private PlayableDirector playableDirector;
    /// <summary>
    /// 演出Timeline管理
    /// </summary>
    private ShowTimelineController showTimelineController;
    /// <summary>
    /// 目标物体
    /// </summary>
    private GameObject go;

    #region 属性
    /// <summary>
    /// 道具路径
    /// </summary>
    public string ItemPath { set { itemPath = value; } }
    
    /// <summary>
    /// 轨道名
    /// </summary>
    public string TrackName { set { trackName = value; } }

    /// <summary>
    /// Timeline
    /// </summary>
    public PlayableDirector PlayableDirector { set { playableDirector = value; } }

    /// <summary>
    /// 演出Timeline管理
    /// </summary>
    public ShowTimelineController ShowTimelineController { set { showTimelineController = value; } }
    #endregion

    public override async void OnGraphStart(Playable playable)
    {
        if (playableDirector == null)
        {
            DebugUtil.LogError("目标没有playableDirector");
            return;
        }

        if (go == null)
        {
            GameObject goTemp;

#if UNITY_EDITOR
            if (Application.isPlaying)
                goTemp = AssetDatabase.LoadAssetAtPath<GameObject>(itemPath);
            else
                goTemp = await AssetManager.Instance.LoadAssetAsync<GameObject>(itemPath);
#else
            goTemp = await AssetManager.Instance.LoadAssetAsync<GameObject>(itemPath);
#endif

            if (goTemp != null)
                go = UnityEngine.Object.Instantiate(goTemp, playableDirector.gameObject.transform.parent);
        }

        if (go == null)
            return;

        go.transform.position = playableDirector.gameObject.transform.position + go.transform.localPosition;
        showTimelineController.Add(go);

        foreach (PlayableBinding playableBinding in playableDirector.playableAsset.outputs)
        {
            if (playableBinding.streamName.Equals(trackName))
            {
                Animator animator = go.GetComponentInChildren<Animator>();
                playableDirector.SetGenericBinding(playableBinding.sourceObject, animator);
                break;
            }
        }
    }

    public override void OnPlayableDestroy(Playable playable)
    {
        if (go == null)
            return;

        showTimelineController.Remove(go);
        UnityEngine.Object.DestroyImmediate(go);
        AssetManager.Instance.Unload(itemPath);
    }
}