using SK.Framework;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.Playables;
using UnityEngine.UI;
/// <summary>
/// 结构认知动画控制
/// </summary>
public class StructuralCognition_Ani : MonoBehaviour, IBeginDragHandler, IEndDragHandler
{
    public Variables variables;
    public PlayableDirector DeviceTimeLine;
    /// <summary>
    /// TimeLine进度条
    /// </summary>
    public Slider _TimelineProgress;
    [Header("Settings")]
    [SerializeField] private bool updateInPlayMode = true;
    private bool isDragging;

    public Animator[] animators;
    void Start()
    {
        DeviceTimeLine = variables.Get<PlayableDirector>("TimeLine动画");
        _TimelineProgress = variables.Get<Slider>("动画节点滑动条");
        Freeze();
        // 确保 duration 有值
        DeviceTimeLine.Evaluate();
        //director.Play();
        _TimelineProgress.minValue = 0f;
        _TimelineProgress.maxValue = (float)DeviceTimeLine.duration;
        _TimelineProgress.wholeNumbers = false;

        _TimelineProgress.onValueChanged.AddListener(OnSliderValueChanged);
        _TimelineProgress.onValueChanged.AddListener((Value) =>
        {
        
        });
    }

    void Update()
    {
        // Timeline → Slider
        if (!isDragging && DeviceTimeLine.state == PlayState.Playing)
        {
            _TimelineProgress.value = (float)DeviceTimeLine.time;
        }

    }
    public void Freeze()
    {
        foreach (var animator in animators)
        {
            if (animator != null)
                animator.speed = 0f;
        }
    }
    public void Resume()
    {
        foreach (var animator in animators)
        {
            if (animator != null)
                animator.speed = 1f;
        }
    }
    void OnSliderValueChanged(float value)
    {
        if (!isDragging)
            return;

        // Slider → Timeline
        DeviceTimeLine.time = value;
        DeviceTimeLine.Evaluate();
    }
    public void OnBeginDrag(PointerEventData eventData)
    {
        isDragging = true;
        DeviceTimeLine.Pause();
        Freeze();
    }

    public void OnEndDrag(PointerEventData eventData)
    {
        isDragging = false;

        DeviceTimeLine.time = _TimelineProgress.value;
        DeviceTimeLine.Evaluate();
        DeviceTimeLine.Play();
        Resume();
    }
}