using System;
using System.Reflection;
using UnityEditor;
using UnityEditor.Presets;
using UnityEngine;
using UnityEngine.UIElements;
namespace HybridCLR.Editor
{
    public class HybridCLRSettingsProvider : SettingsProvider
    {
        private static SerializedObject _serializedObject;
        private SerializedProperty _enable;
        private SerializedProperty _useGlobalIl2cpp;
        private SerializedProperty _cloneFromGitee;
        private SerializedProperty _hotUpdateAssemblyDefinitions;
        private SerializedProperty _hotUpdateAssemblies;
        private SerializedProperty _preserveHotUpdateAssemblies;
        private SerializedProperty _collectAssetReferenceTypes;
        private SerializedProperty _outputLinkFile;
        private SerializedProperty _outputAOTGenericReferenceFile;
        private SerializedProperty _maxGenericReferenceIteration;
        private SerializedProperty _maxMethodBridgeGenericIteration;
        private GUIStyle buttonStyle;
        public HybridCLRSettingsProvider() : base("Project/HybridCLR Settings", SettingsScope.Project) { }
        public override void OnActivate(string searchContext, VisualElement rootElement)
        {
            HybridCLRSettings.Instance.Save();
            var setting = HybridCLRSettings.Instance;
            setting.hideFlags &= ~HideFlags.NotEditable;
            _serializedObject = _serializedObject ?? new SerializedObject(setting);
            _enable = _serializedObject.FindProperty("enable");
            _useGlobalIl2cpp = _serializedObject.FindProperty("useGlobalIl2cpp");
            _cloneFromGitee = _serializedObject.FindProperty("cloneFromGitee");
            _hotUpdateAssemblyDefinitions = _serializedObject.FindProperty("hotUpdateAssemblyDefinitions");
            _hotUpdateAssemblies = _serializedObject.FindProperty("hotUpdateAssemblies");
            _preserveHotUpdateAssemblies = _serializedObject.FindProperty("preserveHotUpdateAssemblies");
            _collectAssetReferenceTypes = _serializedObject.FindProperty("collectAssetReferenceTypes");
            _outputLinkFile = _serializedObject.FindProperty("outputLinkFile");
            _outputAOTGenericReferenceFile = _serializedObject.FindProperty("outputAOTGenericReferenceFile");
            _maxGenericReferenceIteration = _serializedObject.FindProperty("maxGenericReferenceIteration");
            _maxMethodBridgeGenericIteration = _serializedObject.FindProperty("maxMethodBridgeGenericIteration");
        }
        public override void OnTitleBarGUI()
        {
            base.OnTitleBarGUI();
            var rect = GUILayoutUtility.GetLastRect();
            buttonStyle = buttonStyle ?? GUI.skin.GetStyle("IconButton");

            #region  绘制官方网站跳转按钮
            var w = rect.x + rect.width;
            rect.x = w - 58;
            rect.y += 6;
            rect.width = rect.height = 18;
            var content = EditorGUIUtility.IconContent("_Help");
            content.tooltip = "点击访问 HybridCLR 官方文档";
            if (GUI.Button(rect, content, buttonStyle))
            {
                Application.OpenURL("https://focus-creative-games.github.io/hybridclr/");
            }
            #endregion

            #region 绘制 Preset
            rect.x += 19;
            content = EditorGUIUtility.IconContent("Preset.Context");
            content.tooltip = "点击存储或加载 Preset .";
            if (GUI.Button(rect, content, buttonStyle))
            {
                var target = HybridCLRSettings.Instance;
                var receiver = ScriptableObject.CreateInstance<SettingsPresetReceiver>();
                receiver.Init(target);
                PresetSelector.ShowSelector(target, null, true, receiver);
            }
            #endregion
            #region 绘制 Reset
            rect.x += 19;
            content = EditorGUIUtility.IconContent("_Popup");
            content.tooltip = "Reset";
            if (GUI.Button(rect, content, buttonStyle))
            {
                GenericMenu menu = new GenericMenu(); 
                menu.AddItem(new GUIContent("Reset"), false, () => 
                {
                    Undo.RecordObject(HybridCLRSettings.Instance, "Capture Value for Reset");
                    var dv = ScriptableObject.CreateInstance<HybridCLRSettings>();
                    var json = EditorJsonUtility.ToJson(dv);
                    EditorJsonUtility.FromJsonOverwrite(json,HybridCLRSettings.Instance);
                    HybridCLRSettings.Instance.Save();
                });
                menu.ShowAsContext(); 
            }
            #endregion
        }
        public override void OnGUI(string searchContext)
        {
            using (CreateSettingsWindowGUIScope())
            {
                if (_serializedObject == null || !_serializedObject.targetObject)
                {
                    _serializedObject = null;
                    _serializedObject = new SerializedObject(HybridCLRSettings.Instance);
                }
                _serializedObject.Update();
                EditorGUI.BeginChangeCheck();
                EditorGUILayout.PropertyField(_enable);
                EditorGUILayout.PropertyField(_cloneFromGitee);
                EditorGUILayout.PropertyField(_useGlobalIl2cpp);
                EditorGUILayout.PropertyField(_hotUpdateAssemblyDefinitions);
                EditorGUILayout.PropertyField(_hotUpdateAssemblies);
                EditorGUILayout.PropertyField(_preserveHotUpdateAssemblies);
                EditorGUILayout.PropertyField(_collectAssetReferenceTypes);
                EditorGUILayout.PropertyField(_outputLinkFile);
                EditorGUILayout.PropertyField(_outputAOTGenericReferenceFile);
                EditorGUILayout.PropertyField(_maxGenericReferenceIteration);
                EditorGUILayout.PropertyField(_maxMethodBridgeGenericIteration);
                if (EditorGUI.EndChangeCheck())
                {
                    _serializedObject.ApplyModifiedProperties();
                    HybridCLRSettings.Instance.Save();
                }
            }
        }
        private IDisposable CreateSettingsWindowGUIScope()
        {
            var unityEditorAssembly = Assembly.GetAssembly(typeof(EditorWindow));
            var type = unityEditorAssembly.GetType("UnityEditor.SettingsWindow+GUIScope");
            return Activator.CreateInstance(type) as IDisposable;
        }
        public override void OnDeactivate()
        {
            base.OnDeactivate();
            HybridCLRSettings.Instance.Save();
            _serializedObject = null;
        }
        [SettingsProvider]
        public static SettingsProvider CreateMyCustomSettingsProvider()
        {
            if (HybridCLRSettings.Instance)
            {
                var provider = new HybridCLRSettingsProvider
                {
                    keywords = GetSearchKeywordsFromSerializedObject(_serializedObject = _serializedObject ?? new SerializedObject(HybridCLRSettings.Instance))
                };
                return provider;
            }
            return null;
        }
    }
}