using Minigames.TrashMaze.Objects;
using UnityEditor;
using UnityEngine;

namespace Editor.CustomEditorsAndDrawers
{
    [CustomEditor(typeof(RevealableObject))]
    public class RevealableObjectEditor : UnityEditor.Editor
    {
        private RenderTexture _cachedStampTexture;
        private Texture2D _previewTexture;
        
        public override void OnInspectorGUI()
        {
            DrawDefaultInspector();
            
            // Only show debug info in play mode
            if (!Application.isPlaying)
            {
                return;
            }
            
            EditorGUILayout.Space(10);
            EditorGUILayout.LabelField("Progressive Reveal Debug (Play Mode Only)", EditorStyles.boldLabel);
            EditorGUILayout.HelpBox("Shows the current stamp texture for Progressive reveal mode.", MessageType.Info);
            
            RevealableObject revealableObject = (RevealableObject)target;
            
            // Use reflection to get private _revealStampTexture field
            var field = typeof(RevealableObject).GetField("_revealStampTexture", 
                System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
            
            if (field != null)
            {
                RenderTexture stampTexture = field.GetValue(revealableObject) as RenderTexture;
                
                if (stampTexture != null)
                {
                    // Display stamp texture info
                    EditorGUILayout.LabelField("Stamp Texture:", $"{stampTexture.width}x{stampTexture.height}");
                    
                    // Show preview of stamp texture
                    GUILayout.Label("Reveal Mask Preview (White = Revealed):");
                    
                    // Create preview texture if needed
                    if (_cachedStampTexture != stampTexture || _previewTexture == null)
                    {
                        _cachedStampTexture = stampTexture;
                        
                        if (_previewTexture != null)
                        {
                            DestroyImmediate(_previewTexture);
                        }
                        
                        _previewTexture = new Texture2D(stampTexture.width, stampTexture.height, TextureFormat.R8, false);
                        _previewTexture.filterMode = FilterMode.Point;
                    }
                    
                    // Copy RenderTexture to Texture2D for preview
                    RenderTexture.active = stampTexture;
                    _previewTexture.ReadPixels(new Rect(0, 0, stampTexture.width, stampTexture.height), 0, 0);
                    _previewTexture.Apply();
                    RenderTexture.active = null;
                    
                    // Display preview with fixed size
                    float previewSize = 256f;
                    float aspectRatio = (float)stampTexture.height / stampTexture.width;
                    Rect previewRect = GUILayoutUtility.GetRect(previewSize, previewSize * aspectRatio);
                    EditorGUI.DrawPreviewTexture(previewRect, _previewTexture, null, ScaleMode.ScaleToFit);
                    
                    // Auto-refresh in play mode
                    if (Application.isPlaying)
                    {
                        Repaint();
                    }
                }
                else
                {
                    EditorGUILayout.HelpBox("No stamp texture found. Make sure object is in Progressive reveal mode.", MessageType.Warning);
                }
            }
            else
            {
                EditorGUILayout.HelpBox("Could not access stamp texture via reflection.", MessageType.Error);
            }
        }
        
        private void OnDisable()
        {
            // Clean up preview texture
            if (_previewTexture != null)
            {
                DestroyImmediate(_previewTexture);
                _previewTexture = null;
            }
        }
    }
}