using Interactions;
using PuzzleS;
using UnityEditor;
using UnityEngine;

namespace Editor
{
    public class ItemPrefabEditorWindow : EditorWindow
    {
        private GameObject _selectedGameObject;
        private Interactable _interactable;
        private PickupItemData _pickupData;
        private PuzzleStepSO _objectiveData;
        private UnityEditor.Editor _soEditor;
        private string _pickupSoFolderPath = "Assets/Data/Items";
        private string _puzzleSoFolderPath = "Assets/Data/Puzzles";

        private enum ItemType { None, Pickup, ItemSlot }
        private ItemType _itemType = ItemType.None;

        [MenuItem("AppleHills/Item Prefab Editor")]
        public static void ShowWindow()
        {
            var window = GetWindow<ItemPrefabEditorWindow>("Item Prefab Editor");
            window.minSize = new Vector2(400, 400);
        }

        private void OnEnable()
        {
            Selection.selectionChanged += Repaint;
        }

        private void OnDisable()
        {
            Selection.selectionChanged -= Repaint;
        }

        private void OnGUI()
        {
            _selectedGameObject = null;
            _interactable = null;
            if (Selection.activeGameObject != null)
            {
                _selectedGameObject = Selection.activeGameObject;
                _interactable = _selectedGameObject.GetComponent<Interactable>();
            }
            else if (Selection.activeObject is GameObject go)
            {
                _selectedGameObject = go;
                _interactable = go.GetComponent<Interactable>();
            }

            if (_selectedGameObject == null || _interactable == null)
            {
                EditorGUILayout.HelpBox("Select a GameObject or prefab with an Interactable component to edit.", MessageType.Info);
                return;
            }

            EditorGUILayout.LabelField("Editing: ", _selectedGameObject.name, EditorStyles.boldLabel);
            EditorGUILayout.Space();

            // Determine current type
            bool hasPickup = _selectedGameObject.GetComponent<Pickup>() != null;
            bool hasSlot = _selectedGameObject.GetComponent<ItemSlot>() != null;
            if (hasSlot) _itemType = ItemType.ItemSlot;
            else if (hasPickup) _itemType = ItemType.Pickup;
            else _itemType = ItemType.None;

            // Item type selection
            var newType = (ItemType)EditorGUILayout.EnumPopup("Item Type", _itemType);
            if (newType != _itemType)
            {
                // Remove both, then add selected
                PrefabEditorUtility.RemoveComponent<Pickup>(_selectedGameObject);
                PrefabEditorUtility.RemoveComponent<ItemSlot>(_selectedGameObject);
                if (newType == ItemType.Pickup)
                    PrefabEditorUtility.AddOrGetComponent<Pickup>(_selectedGameObject);
                else if (newType == ItemType.ItemSlot)
                    PrefabEditorUtility.AddOrGetComponent<ItemSlot>(_selectedGameObject);
                _itemType = newType;
            }

            // ObjectiveStepBehaviour
            bool hasObjective = _selectedGameObject.GetComponent<ObjectiveStepBehaviour>() != null;
            bool addObjective = EditorGUILayout.Toggle("ObjectiveStepBehaviour", hasObjective);
            if (addObjective && !hasObjective)
            {
                PrefabEditorUtility.AddOrGetComponent<ObjectiveStepBehaviour>(_selectedGameObject);
            }
            else if (!addObjective && hasObjective)
            {
                PrefabEditorUtility.RemoveComponent<ObjectiveStepBehaviour>(_selectedGameObject);
            }

            // Pickup Data (for Pickup or ItemSlot)
            if (_itemType == ItemType.Pickup || _itemType == ItemType.ItemSlot)
            {
                var pickup = _selectedGameObject.GetComponent<Pickup>();
                _pickupData = pickup.itemData;
                EditorGUILayout.LabelField("Pickup Data:", EditorStyles.boldLabel);
                _pickupData = (PickupItemData)EditorGUILayout.ObjectField("PickupItemData", _pickupData, typeof(PickupItemData), false);
                EditorGUILayout.BeginHorizontal();
                EditorGUILayout.PrefixLabel("Save To");
                EditorGUILayout.SelectableLabel(_pickupSoFolderPath, EditorStyles.textField, GUILayout.Height(EditorGUIUtility.singleLineHeight));
                if (GUILayout.Button("Select...", GUILayout.Width(80)))
                {
                    _pickupSoFolderPath = PrefabEditorUtility.SelectFolder(_pickupSoFolderPath, "Data/Items");
                }
                EditorGUILayout.EndHorizontal();
                if (_pickupData == null && GUILayout.Button("Create New PickupItemData"))
                {
                    _pickupData = PrefabEditorUtility.CreateScriptableAsset<PickupItemData>(_selectedGameObject.name + "_pickup", _pickupSoFolderPath);
                }
                if (_pickupData != null)
                {
                    PrefabEditorUtility.DrawScriptableObjectEditor(ref _soEditor, _pickupData);
                    pickup.itemData = _pickupData;
                }
            }

            // Objective Data
            if (addObjective)
            {
                var obj = _selectedGameObject.GetComponent<ObjectiveStepBehaviour>();
                _objectiveData = obj.stepData;
                EditorGUILayout.LabelField("Objective Data:", EditorStyles.boldLabel);
                _objectiveData = (PuzzleStepSO)EditorGUILayout.ObjectField("PuzzleStepSO", _objectiveData, typeof(PuzzleStepSO), false);
                EditorGUILayout.BeginHorizontal();
                EditorGUILayout.PrefixLabel("Save To");
                EditorGUILayout.SelectableLabel(_puzzleSoFolderPath, EditorStyles.textField, GUILayout.Height(EditorGUIUtility.singleLineHeight));
                if (GUILayout.Button("Select...", GUILayout.Width(80)))
                {
                    _puzzleSoFolderPath = PrefabEditorUtility.SelectFolder(_puzzleSoFolderPath, "Data/Puzzles");
                }
                EditorGUILayout.EndHorizontal();
                if (_objectiveData == null && GUILayout.Button("Create New PuzzleStepSO"))
                {
                    _objectiveData = PrefabEditorUtility.CreateScriptableAsset<PuzzleStepSO>(_selectedGameObject.name + "_puzzle", _puzzleSoFolderPath);
                }
                if (_objectiveData != null)
                {
                    PrefabEditorUtility.DrawScriptableObjectEditor(ref _soEditor, _objectiveData);
                    obj.stepData = _objectiveData;
                }
            }
            if (GUI.changed)
            {
                EditorUtility.SetDirty(_selectedGameObject);
                PrefabUtility.RecordPrefabInstancePropertyModifications(_selectedGameObject);
            }
        }
    }
}