using UnityEngine;
using UnityEditor;

/// <summary>
/// 自動在 Play Mode 中偵測到 PageController 時掛載截圖工具
/// 持續監控，不管什麼時候進入操作員選單都會自動啟用
/// </summary>
[InitializeOnLoad]
public static class OperatorScreenshotLoader
{
    static OperatorScreenshotLoader()
    {
        EditorApplication.playModeStateChanged += OnPlayModeChanged;
    }
    
    private static void OnPlayModeChanged(PlayModeStateChange state)
    {
        if (state == PlayModeStateChange.EnteredPlayMode)
        {
            // Play Mode 中持續監控
            EditorApplication.update += CheckForPageController;
        }
        else if (state == PlayModeStateChange.ExitingPlayMode)
        {
            EditorApplication.update -= CheckForPageController;
        }
    }
    
    private static void CheckForPageController()
    {
        // 確認還在 Play Mode
        if (!EditorApplication.isPlaying)
        {
            EditorApplication.update -= CheckForPageController;
            return;
        }
        
        // 如果已經有截圖工具就不用再找
        if (Object.FindObjectOfType<OperatorScreenshotCapture>() != null)
            return;
        
        // 找 PageController（可能在任何時候出現）
        var pc = Object.FindObjectOfType<OperatorSettings.PageController>();
        if (pc != null)
        {
            var go = new GameObject("ScreenshotTool");
            go.AddComponent<OperatorScreenshotCapture>();
            Debug.Log("📸 截圖工具已自動載入");
        }
    }
}