using System.Collections;
using UnityEngine;
using UnityEngine.SceneManagement;
using UnityEngine.UI;
using UnityEngine.Video;

public class ServerWorkMessageReplyExitPanel : MonoBehaviour
{
    public static ServerWorkMessageReplyExitPanel Instance;

    [Header("影片播放")]
    public VideoPlayer videoPlayer;
    public RawImage videoDisplay;

    private bool clientResponseReceived = false; // ✅ 新增
    private bool videoHasFinished = false; // ✅ 新增

    private void Awake()
    {
        Instance = this;
    }

    void Start()
    {
        SetupVideoPlayer();
    }

    public void play()
    {
        if (videoPlayer != null)
        {
            Debug.Log("SERVER: 開始播放影片");
            clientResponseReceived = false; // ✅ 重置狀態
            videoHasFinished = false; // ✅ 重置狀態
            videoPlayer.Play();
        }
    }

    public void stop()
    {
        if (videoPlayer != null)
        {
            Debug.Log("SERVER: 停止播放影片");
            videoPlayer.Stop();
        }
    }

    // ✅ 新增：當收到 CLIENT 訊號時呼叫此方法
    public void OnClientResponseReceived()
    {
        Debug.Log("SERVER: 收到 CLIENT 訊號");
        clientResponseReceived = true;

        // 如果影片已經播完，立即跳轉
        if (videoHasFinished)
        {
            Debug.Log("SERVER: 影片已播完，立即跳轉");
            ProcessNextStep();
        }
        else
        {
            Debug.Log("SERVER: 影片還在播放，等待播放完成...");
        }
    }

    void SetupVideoPlayer()
    {
        if (videoPlayer != null)
        {
            videoPlayer.loopPointReached += OnVideoFinished; // ✅ 這行現在不會報錯了
            videoPlayer.isLooping = false;

            if (videoDisplay != null)
            {
                videoPlayer.targetTexture = null;
                videoPlayer.renderMode = VideoRenderMode.RenderTexture;
                RenderTexture rt = new RenderTexture(1920, 1080, 24);
                videoPlayer.targetTexture = rt;
                videoDisplay.texture = rt;
            }

            Debug.Log("SERVER: VideoPlayer 設置完成");
        }
        else
        {
            Debug.LogError("SERVER: VideoPlayer 未指定！");
        }
    }

    // ✅ 新增：影片播放完成的事件處理
    void OnVideoFinished(VideoPlayer vp)
    {
        Debug.Log("SERVER: 影片播放完成");
        videoHasFinished = true;

        // 只有當收到 CLIENT 訊號後才跳轉
        if (clientResponseReceived)
        {
            Debug.Log("SERVER: CLIENT 訊號已收到，準備跳轉");
            ProcessNextStep();
        }
        else
        {
            Debug.Log("SERVER: 影片播完，等待 CLIENT 訊號...");
        }
    }

    // ✅ 新增：執行跳轉
    void ProcessNextStep()
    {
        if (ServerWorkSceneController.Instance != null)
        {
            Debug.Log("SERVER: 跳轉到步驟 10");
            ServerWorkSceneController.Instance.processStep(10);
        }
        else
        {
            Debug.LogError("SERVER: ServerWorkSceneController.Instance 不存在！無法跳轉");
        }
    }
}