using UnityEngine;
using System.Threading.Tasks;
using System;
using asap.core;
using System.Linq;

public class OfferStoryChainVideoCtrl : OfferStoryChainAnimationCtrl
{
    [SerializeField] private LeviathanVideoDecoder videoDecoder;
    [SerializeField] private TextAsset[] idleVideos, actionVideos;
    private string[] _audioNames;

    private const double MicrosecondsPerSecond = 1_000_000d;

    public override void Init(string baseName)
    {
        // _idleAnimNames = Enumerable.Range(1, 6).Select(i => baseName + "_idle_" + i).ToArray();
        // _aniNames = Enumerable.Range(1, 5).Select(i => baseName + "_action_" + i).ToArray();
        // _idleAnimNames = Enumerable.Range(1, 6).Select(i => "idle_" + i).ToArray();
        // _aniNames = Enumerable.Range(1, 5).Select(i => "action_" + i).ToArray();
        _audioNames = Enumerable.Range(1, actionVideos.Length).Select(i => "audio_" + baseName + "_action_" + i).ToArray();
        for (int i = 0; i < transform.childCount; i++)
        {
            var child = transform.GetChild(i);
            // Debug.Log("[OfferStoryChain] child: " + child.name);
            child.gameObject.SetActive(!child.TryGetComponent<ZZVideoRawImageDecoder>(out _));
        }
    }

    public override void PlayIdleAnimation(int progress)
    {
        try
        {
            progress = Mathf.Clamp(progress, 0, idleVideos.Length - 1);
            videoDecoder.SetLooping(true);
            videoDecoder.ChangeVideo(idleVideos[progress], LeviathanVideoDecoderBase.PlayAlphaType.None, multithreadedDecode:true);
        }
        catch (Exception e)
        {
            Debug.LogError(e);
        }
    }

    public override async Task PlayUpdateAnimation(int progress)
    {
        try
        {
            // GContext.Publish(new Game.EventUISound(_audioNames[progress - 1]));
            // skeletonGraphic.AnimationState.SetAnimation(0, _aniNames[progress - 1], false);
            // var duration = skeletonGraphic.AnimationState.GetCurrent(0).Animation.Duration;
            // skeletonGraphic.AnimationState.AddAnimation(0, _idleAnimNames[progress], true, 0f);
            // await Task.Delay(TimeSpan.FromSeconds(duration));
            progress -= 1;
            GContext.Publish(new Game.EventUISound(_audioNames[progress]));
            progress = Mathf.Clamp(progress, 0, actionVideos.Length - 1);
            videoDecoder.ChangeVideo(actionVideos[progress], LeviathanVideoDecoderBase.PlayAlphaType.None, multithreadedDecode:true);
            videoDecoder.SetLooping(false);
            await Task.Delay(TimeSpan.FromSeconds(GetCurrentVideoLengthSeconds()));
            videoDecoder.ChangeVideo(idleVideos[progress + 1], LeviathanVideoDecoderBase.PlayAlphaType.None, multithreadedDecode:true);
            videoDecoder.SetLooping(true);
        }
        catch (Exception e)
        {
            Debug.LogError(e);
        }
    }

    private double GetCurrentVideoLengthSeconds()
    {
        if (videoDecoder == null)
        {
            return 0d;
        }

        // 首选容器时长（微秒），对可变帧率更准确。
        if (videoDecoder.Duration > 0)
        {
            return videoDecoder.Duration / MicrosecondsPerSecond;
        }

        // 兜底：总帧数 * 每帧时长（秒）。
        if (videoDecoder.FrameCount > 0 && videoDecoder.FrameInterval > 0)
        {
            return videoDecoder.FrameCount * videoDecoder.FrameInterval;
        }

        return 0d;
    }

    // #if UNITY_EDITOR
    // [Header("Test")]
    // [SerializeField] private int progress;
    // private void Update()
    // {
    //     if (Input.GetKeyDown(KeyCode.I))
    //     {
    //         PlayIdleAnimation(progress);
    //     }
    //     if (Input.GetKeyDown(KeyCode.U))
    //     {
    //         PlayUpdateAnimation(progress);
    //     }
    // }
    // #endif
}