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

public class ClientGameBackToRealSceneController : MonoBehaviour
{
    public static ClientGameBackToRealSceneController Instance;

    public VideoPlayer videoPlayer;
    public RawImage videoDisplay;

    // --- 【新增變數】用於追蹤兩個條件是否滿足 ---
    private bool isVideoFinished = false;
    private bool isSignalReceived = false;

    private void Awake()
    {
        Instance = this;
    }

    void Start()
    {
        SetupVideoPlayer();

        // 開始播放影片
        if (videoPlayer != null)
        {
            videoPlayer.Play();
            Debug.Log("開始播放影片");
        }
    }

    void SetupVideoPlayer()
    {
        if (videoPlayer != null)
        {
            // 設置影片結束事件
            videoPlayer.loopPointReached += OnVideoFinished;

            // 設置影片顯示 (略)
            if (videoDisplay != null)
            {
                videoPlayer.targetTexture = null;
                videoPlayer.renderMode = VideoRenderMode.RenderTexture;
                RenderTexture rt = new RenderTexture(1080, 1920, 24);
                videoPlayer.targetTexture = rt;
                videoDisplay.texture = rt;
            }
        }
    }

    // 影片播放結束時呼叫
    void OnVideoFinished(VideoPlayer vp)
    {
        Debug.Log("影片播放完成。");
        isVideoFinished = true; // 影片結束標記設為 true
        CheckAndLoadScene();    // 檢查是否可以跳轉
    }

    // --- 【新增方法】供 ClientMessageHandler 呼叫，標記訊號已收到 ---
    public void ReceiveSignalFromPlayerB()
    {
        Debug.Log("收到玩家B的訊號 (gameFinalWords)。");
        isSignalReceived = true; // 訊號接收標記設為 true
        CheckAndLoadScene();     // 檢查是否可以跳轉
    }

    // --- 【新增方法】核心檢查跳轉邏輯 ---
    private void CheckAndLoadScene()
    {
        // 確保 ClientLastWordsSceneController.words 已經有值
        bool hasWords = !string.IsNullOrEmpty(ClientLastWordsSceneController.words);

        if (isVideoFinished && isSignalReceived && hasWords)
        {
            Debug.Log("🎉 影片和訊號條件滿足，準備跳轉到下一場景...");
            StartCoroutine(LoadNextScene());
        }
        else if (isVideoFinished && !isSignalReceived)
        {
            // 影片已結束，等待訊號
            Debug.Log("影片已結束，正在等待玩家B訊號...");
        }
        else if (!isVideoFinished && isSignalReceived)
        {
            // 訊號已收到，等待影片結束
            Debug.Log("已收到玩家B訊號，正在等待影片播放完成...");
        }
    }

    public IEnumerator LoadNextScene()
    {
        yield return new WaitForSeconds(0f);
        SceneManager.LoadScene("ClientLastWordsScene");
    }
}