using AppUI.Localization;
using UnityEditor;
using UnityEngine;

namespace AppUI.Editor
{
    [CustomEditor(typeof(AppUITextAutoLanguage))]
    public class AppUITextAutoLanguageEditor : UnityEditor.Editor
    {
        SerializedProperty _textKey;
        SerializedProperty _fallbackText;
        SerializedProperty _layoutRebuildObject;
        SerializedProperty _languageFontSizes;

        void OnEnable()
        {
            _textKey = serializedObject.FindProperty("textKey");
            _fallbackText = serializedObject.FindProperty("fallbackText");
            _layoutRebuildObject = serializedObject.FindProperty("layoutRebuildObject");
            _languageFontSizes = serializedObject.FindProperty("languageFontSizes");
        }

        public override void OnInspectorGUI()
        {
            serializedObject.Update();

            EditorGUILayout.LabelField("AppUI 多语言文本", EditorStyles.boldLabel);
            DrawPreviewLanguageHelpBox();

            var changed = false;
            EditorGUI.BeginChangeCheck();
            EditorGUILayout.PropertyField(_textKey, new GUIContent("Text Key"));
            EditorGUILayout.PropertyField(_fallbackText, new GUIContent("Fallback 文案"));
            EditorGUILayout.PropertyField(_layoutRebuildObject);
            EditorGUILayout.PropertyField(_languageFontSizes, true);
            if (EditorGUI.EndChangeCheck())
                changed = true;

            if (changed)
            {
                serializedObject.ApplyModifiedProperties();
                RefreshPreview();
            }

            if (GUILayout.Button("刷新多语言预览"))
            {
                serializedObject.ApplyModifiedProperties();
                RefreshPreview();
            }

            serializedObject.ApplyModifiedProperties();
        }

        static void DrawPreviewLanguageHelpBox()
        {
            AppUILocalization.Reload();
            var language = AppUILocalization.GetLanguage();
            string languageName = language switch
            {
                LanguageEnum.English => "English (en.json)",
                LanguageEnum.Japan => "日本語 (Japan.json)",
                _ => "中文 (cn.json)",
            };
            EditorGUILayout.HelpBox(
                $"当前 Editor 预览语言：{languageName}\n" +
                "与 PlayerPrefs「Language」一致；运行时在设置页切换语言后，Editor 预览也会跟随。",
                MessageType.Info);
        }

        void RefreshPreview()
        {
            AppUILocalization.Reload();

            foreach (var t in targets)
            {
                if (t is not AppUITextAutoLanguage component)
                    continue;

                Undo.RecordObject(component, "Refresh AppUI Text Localization");
                component.RefreshLocalizedPreview();
                EditorUtility.SetDirty(component);
            }
        }
    }
}