using AlicizaX.UI;
using AlicizaX.UI.Runtime;
using UnityEditor;
using UnityEditor.SceneManagement;
using UnityEngine;
using UnityEngine.UIElements;

namespace Aliciza.UXTool
{
    public class UXControllerAddWindow : EditorWindow
    {
        private UXController _ux;
        private TextField _nameField;
        private IntegerField _lengthField;

        public static void ShowWindow(UXController ux)
        {
            var w = CreateInstance<UXControllerAddWindow>();
            w.titleContent = new GUIContent("添加控制器");
            w._ux = ux;
            w.position = new Rect(Screen.width / 2f - 150f, Screen.height / 2f - 60f, 320, 120);
            w.ShowUtility();
        }

        private void OnEnable()
        {
            var root = rootVisualElement;
            root.style.paddingLeft = 8;
            root.style.paddingTop = 8;
            root.style.paddingRight = 8;
            root.style.paddingBottom = 8;

            var title = new Label("添加控制器");
            title.style.unityFontStyleAndWeight = FontStyle.Bold;
            title.style.marginBottom = 6;
            root.Add(title);

            _nameField = new TextField("Name");
            _nameField.value = _ux != null ? $"Controller{_ux.Controllers.Count}" : "Controller";
            root.Add(_nameField);

            _lengthField = new IntegerField("Length");
            _lengthField.value = 2;
            root.Add(_lengthField);

            var row = new VisualElement();
            row.style.flexDirection = FlexDirection.Row;
            row.style.justifyContent = Justify.FlexEnd;
            row.style.marginTop = 8;

            var add = new Button(() =>
            {
                if (_ux != null)
                {
                    Undo.RecordObject(_ux, "Add Controller");
                    // 使用 SerializedObject 能保证序列化
                    var so = new SerializedObject(_ux);
                    var controllersProp = so.FindProperty("_controllers");
                    int newIndex = controllersProp.arraySize;
                    controllersProp.InsertArrayElementAtIndex(newIndex);
                    var el = controllersProp.GetArrayElementAtIndex(newIndex);
                    var nameProp = el.FindPropertyRelative("Name");
                    var lengthProp = el.FindPropertyRelative("Length");
                    nameProp.stringValue = _nameField.value;
                    lengthProp.intValue = Mathf.Max(1, _lengthField.value);
                    so.ApplyModifiedProperties();
                    EditorUtility.SetDirty(_ux);
                }
                else
                {
                    // 如果外部没有提供 UXController，尝试在 prefab root 上添加
                    var prefabStage = PrefabStageUtility.GetCurrentPrefabStage();
                    if (prefabStage != null && prefabStage.prefabContentsRoot != null)
                    {
                        var comp = Undo.AddComponent<UXController>(prefabStage.prefabContentsRoot);
                        EditorUtility.SetDirty(prefabStage.prefabContentsRoot);
                        if (comp != null)
                        {
                            Undo.RecordObject(comp, "Add Controller");
                            var so = new SerializedObject(comp);
                            var controllersProp = so.FindProperty("_controllers");
                            controllersProp.InsertArrayElementAtIndex(0);
                            var el = controllersProp.GetArrayElementAtIndex(0);
                            var nameProp = el.FindPropertyRelative("Name");
                            var lengthProp = el.FindPropertyRelative("Length");
                            nameProp.stringValue = _nameField.value;
                            lengthProp.intValue = Mathf.Max(1, _lengthField.value);
                            so.ApplyModifiedProperties();
                            EditorUtility.SetDirty(comp);
                        }
                    }
                }

                Close();
            });
            add.text = "添加";
            row.Add(add);

            var cancel = new Button(() => Close());
            cancel.text = "取消";
            cancel.style.marginLeft = 8;
            row.Add(cancel);

            root.Add(row);
        }
    }
}