using System.Collections.Generic;
using System.Linq;
using Superlazy.Loader;
using UnityEditor;
using UnityEditor.SceneManagement;
using UnityEngine;

namespace Superlazy
{
    [CustomEditor(typeof(SLUnity))]
    public class SLUnityInspector : Editor
    {
        private SLUnity component;
        private bool sessionRoot;
        private readonly Dictionary<string, bool> sessionView = new Dictionary<string, bool>();

        private bool dataRoot;
        private readonly Dictionary<string, bool> dataView = new Dictionary<string, bool>();

        private string sessionSearch;

        [MenuItem("Window/SLUnity %#W")]
        public static void ShowWindow()
        {
            Selection.activeObject = FindFirstObjectByType<SLUnity>();
        }

        private void OnEnable()
        {
            component = target as SLUnity;

            //if (component.managers != null && component.managers.Length > 0 && component.managers[0] == "All")
            //{
            //    var behaviors = new List<Type>();
            //    behaviors.CreateTypeList<SLManager>();
            //    foreach (var type in behaviors)
            //    {
            //        useManagers.Add(type.FullName);
            //    }
            //}
            //else
            //{
            //    foreach (var managerName in component.managers)
            //    {
            //        useManagers.Add(managerName);
            //    }
            //}
        }

        public override void OnInspectorGUI()
        {
            base.OnInspectorGUI();

            var requireSave = false;

            //component.Loader

            //SLUnityBoot.mobileData = EditorGUILayout.Toggle("Mobile Data", SLUnityBoot.mobileData);
            //if (SLUnityBoot.mobileData == false)
            //{
            //    SLUnityBoot.dataPath = EditorGUILayout.TextField("Data Path", SLUnityBoot.dataPath);
            //}
            //SLUnityBoot.UpdateData();

            EditorGUILayout.Separator();

            //var behaviors = new List<Type>();
            //behaviors.CreateTypeList<SLManager>();
            //var subject = "SLManager :";
            //if (component.managers != null && component.managers.Length > 0 && component.managers[0] == "All")
            //{
            //    subject += " All";
            //}
            //EditorGUILayout.LabelField(subject);
            //var oldCount = useManagers.Count;
            //foreach (var type in behaviors)
            //{
            //    bool old = useManagers.Contains(type.FullName);
            //    var use = EditorGUILayout.Toggle(type.FullName, old);
            //    if (use != old)
            //    {
            //        requireSave = true;
            //        if (use == false)
            //        {
            //            useManagers.Remove(type.FullName);
            //        }
            //        else
            //        {
            //            useManagers.Add(type.FullName);
            //        }
            //    }
            //}
            //if (useManagers.Count != oldCount)
            //{
            //    if (behaviors.Count == useManagers.Count)
            //    {
            //        component.managers = new string[] { "All" };
            //    }
            //    else
            //    {
            //        component.managers = useManagers.ToArray();
            //    }
            //}

            EditorGUILayout.Separator();

            ShowDataTree();

            EditorGUILayout.Separator();

            sessionSearch = EditorGUILayout.TextField("Search", sessionSearch);
            if (sessionSearch == null || sessionSearch == string.Empty)
            {
                ShowSessionTree();
            }
            else
            {
                ShowSessionSearch(sessionSearch);
            }

            //var caches = SLGame.SessionCacheKeys;
            //sessionCache = EditorGUILayout.Foldout(sessionCache, "SessionCache(" + caches.Count() + ")");
            //if (sessionCache)
            //{
            //    foreach (var key in caches)
            //    {
            //        EditorGUILayout.LabelField(key);
            //    }
            //}

            ViewPlayerPref();

            if (requireSave && Application.isPlaying == false)
            {
                EditorUtility.SetDirty(component);
                EditorSceneManager.MarkAllScenesDirty();
            }
        }

        private void ShowSessionTree()
        {
            sessionRoot = EditorGUILayout.Foldout(sessionRoot, "Session");
            if (sessionRoot && SLGame.Session)
            {
                var changed = SLEntity.Empty;
                ViewTree(SLGame.Session, "", 1, sessionView, changed);
                ChangeView(SLGame.Session, changed);
            }

            Repaint();
        }

        private void ShowDataTree()
        {
            dataRoot = EditorGUILayout.Foldout(dataRoot, "Data");
            if (dataRoot && SLSystem.Data)
            {
                var changed = SLEntity.Empty;
                ViewTree(SLSystem.Data, "", 1, dataView, changed);
                ChangeView(SLSystem.Data, changed);
            }
            Repaint();
        }

        private void ViewTree(SLEntity e, string prefix, int depth, Dictionary<string, bool> view, SLEntity changed)
        {
            foreach (var tree in e.OrderBy(child => child.IsValue ? "B" + child.ID : "A" + child.ID))
            {
                var id = prefix + tree.ID;
                if (view.ContainsKey(id) == false)
                {
                    view[id] = false;
                }
                if (tree.IsValue == false)
                {
                    EditorGUILayout.BeginHorizontal();
                    EditorGUILayout.LabelField("", GUILayout.Width(10 * depth));
                    view[id] = EditorGUILayout.Foldout(view[id], tree.ToString());
                    EditorGUILayout.EndHorizontal();

                    if (view[id])
                    {
                        ViewTree(tree, id + ".", depth + 1, view, changed[tree.ID]);
                    }
                }
                else
                {
                    EditorGUILayout.BeginHorizontal();
                    EditorGUILayout.LabelField("", GUILayout.Width(10 * depth));
                    string changeValue;
                    if (tree.ToString() == "True")
                    {
                        changeValue = EditorGUILayout.Toggle(tree.ID, e[tree.ID]).ToString();
                    }
                    else if (tree.IsNumeric)
                    {
                        changeValue = EditorGUILayout.DoubleField(tree.ID, e[tree.ID]).ToString();
                    }
                    else
                    {
                        changeValue = EditorGUILayout.TextField(tree.ID, e[tree.ID]);
                    }
                    if (changeValue != e[tree.ID])
                    {
                        changed[tree.ID] = changeValue;
                    }
                    EditorGUILayout.EndHorizontal();
                }
            }
        }

        private void ChangeView(SLEntity e, SLEntity changed)
        {
            if (changed)
            {
                foreach (var entity in changed)
                {
                    if (entity.IsValue == false)
                    {
                        ChangeView(e[entity.ID], entity);
                    }
                    else
                    {
                        if (e[entity.ID].IsNumeric)
                        {
                            e[entity.ID] = double.Parse(entity);
                        }
                        else if (entity == "False")
                        {
                            e[entity.ID] = false;
                        }
                        else
                        {
                            e[entity.ID] = entity;
                        }
                    }
                }
            }
        }

        private void ShowSessionSearch(string sessionSearch)
        {
            SessionSearch(SLGame.Session, sessionSearch, null);
        }

        private void SessionSearch(SLEntity session, string sessionSearch, string path)
        {
            foreach (var child in session)
            {
                if (path != null)
                {
                    var newPath = path + "." + child.ID;
                    if (child.IsValue)
                    {
                        if (newPath.Contains(sessionSearch))
                        {
                            EditorGUILayout.LabelField(newPath + ": " + child);
                        }
                    }
                    else
                    {
                        SessionSearch(child, sessionSearch, newPath);
                    }
                }
                else
                {
                    if (child.IsValue)
                    {
                        if (child.ID.Contains(sessionSearch))
                        {
                            EditorGUILayout.LabelField(child.ID + ": " + child);
                        }
                    }
                    else
                    {
                        SessionSearch(child, sessionSearch, child.ID);
                    }
                }
            }
        }

#if UNITY_EDITOR_WIN
        private bool viewPref;
        private SLEntity pref;
        private Dictionary<string, Dictionary<string, bool>> prefView = new Dictionary<string, Dictionary<string, bool>>();
        private Dictionary<string, bool> prefOn = new Dictionary<string, bool>();
#endif

        private void ViewPlayerPref()
        {
#if UNITY_EDITOR_WIN
            if (Application.platform != RuntimePlatform.WindowsEditor) return;
            viewPref = EditorGUILayout.Foldout(viewPref, "PlayerPref");

            if (viewPref)
            {
                if (GUILayout.Button("Refresh"))
                {
                    pref = null;
                }

                if (pref == null)
                {
                    MakePref();
                }

                foreach (var value in pref)
                {
                    if (value.ID.IsLeft("unity") || value.ID.IsLeft("Unity")) continue;

                    using (new EditorGUILayout.HorizontalScope())
                    {
                        if (value.IsValue)
                        {
                            EditorGUILayout.LabelField(value.ID + " " + value);
                        }
                        else
                        {
                            if (prefOn.ContainsKey(value.ID) == false) prefOn[value.ID] = false;
                            prefOn[value.ID] = EditorGUILayout.Foldout(prefOn[value.ID], value.ID);
                            if (prefOn[value.ID])
                            {
                                if (prefView.ContainsKey(value.ID) == false) prefView[value.ID] = new Dictionary<string, bool>();
                                SLBindingEntityView.UpdateView(value, "", 1, prefView[value.ID]);
                                Repaint();
                            }
                        }

                        if (GUILayout.Button("Remove", GUILayout.Width(200)))
                        {
                            PlayerPrefs.DeleteKey(value.ID);
                            pref = null;
                            return;
                        }
                    }
                }
            }
        }

        private void MakePref()
        {
            Microsoft.Win32.RegistryKey registryKey = Microsoft.Win32.Registry.CurrentUser.OpenSubKey("Software\\Unity\\UnityEditor\\" + PlayerSettings.companyName + "\\" + PlayerSettings.productName);
            if (registryKey != null)
            {
                string[] valueNames = registryKey.GetValueNames();

                pref = SLEntity.Empty;

                // Parse and convert the registry saved player prefs into our array
                //int i = 0;
                foreach (string valueName in valueNames)
                {
                    string key = valueName;

                    // Remove the _h193410979 style suffix used on player pref keys in Windows registry
                    int index = key.LastIndexOf("_");
                    key = key.Remove(index, key.Length - index);

                    // Get the value from the registry
                    object ambiguousValue = registryKey.GetValue(valueName);

                    // Unfortunately floats will come back as an int (at least on 64 bit) because the float is stored as
                    // 64 bit but marked as 32 bit - which confuses the GetValue() method greatly!
                    if (ambiguousValue.GetType() == typeof(int))
                    {
                        // If the player pref is not actually an int then it must be a float, this will evaluate to true
                        // (impossible for it to be 0 and -1 at the same time)
                        if (PlayerPrefs.GetInt(key, -1) == -1 && PlayerPrefs.GetInt(key, 0) == 0)
                        {
                            // Fetch the float value from PlayerPrefs in memory
                            pref[key] = PlayerPrefs.GetFloat(key);
                        }
                        else
                        {
                            pref[key] = (int)ambiguousValue;
                        }
                    }
                    else if (ambiguousValue.GetType() == typeof(byte[]))
                    {
                        // On Unity 5 a string may be stored as binary, so convert it back to a string
                        pref[key] = System.Text.Encoding.UTF8.GetString((byte[])ambiguousValue);
                        if (pref[key].IsLeft("{"))
                        {
                            pref[key] = JsonLoader.LoadJson(pref[key]);
                        }
                    }
                }
            }
#endif
        }
    }
}