/// <summary>
        /// Save helper.
        /// </summary>
        private void _Save(String path)
        {
            if (this.DisableSavingSettings)
            {
                Logger.Info("Saving settings has been disabled...");
                return;
            }

            if (searchTerms.Count > 10)
            {
                searchTerms.RemoveRange(10, searchTerms.Count - 10);
            }

            var settings = new XmlWriterSettings
            {
                OmitXmlDeclaration  = false,
                Indent              = true,
                NewLineOnAttributes = true,
                NewLineHandling     = System.Xml.NewLineHandling.Entitize
            };

            using (var stream = new StreamWriter(path, false, Utf8Encoding))
            {
                using (var writer = XmlWriter.Create(stream, settings))
                {
                    SettingsSerializer.Serialize(writer, this);
                }
            }
        }
        public ScoreSaberDataFile(byte[] data)
        {
            Stopwatch timer = new Stopwatch();

            timer.Start();

            SongVersionToScoreSaberData = new Dictionary <string, ScoreSaberData>();

            System.Globalization.NumberStyles style = System.Globalization.NumberStyles.AllowDecimalPoint;

            string result = System.Text.Encoding.UTF8.GetString(data);

            JSONNode rootNode = JSON.Parse(result);

            foreach (KeyValuePair <string, JSONNode> kvp in rootNode)
            {
                JSONNode difficultyNodes = kvp.Value;
                foreach (KeyValuePair <string, JSONNode> innerKvp in difficultyNodes)
                {
                    JSONNode node           = innerKvp.Value;
                    String   version        = node["key"];
                    String   name           = node["name"];
                    String   difficultyName = node["difficulty"];
                    if (difficultyName == "Expert+")
                    {
                        difficultyName = "ExpertPlus";
                    }

                    float pp = 0;
                    float.TryParse(node["pp"], style, System.Globalization.CultureInfo.InvariantCulture, out pp);

                    float starDifficulty = 0;
                    float.TryParse(node["star"], style, System.Globalization.CultureInfo.InvariantCulture, out starDifficulty);

                    ScoreSaberData ppData = null;
                    if (!SongVersionToScoreSaberData.ContainsKey(version))
                    {
                        ppData = new ScoreSaberData
                        {
                            version = version,
                            name    = name
                        };

                        SongVersionToScoreSaberData.Add(version, ppData);
                    }
                    else
                    {
                        ppData = SongVersionToScoreSaberData[version];
                    }

                    // add difficulty
                    ppData.AddDifficultyRating(difficultyName, pp, starDifficulty);
                }
            }

            timer.Stop();
            Logger.Debug("Processing ScoreSaber data took {0}ms", timer.ElapsedMilliseconds);
        }
        /// <summary>
        /// Favorites used to exist as part of the song_browser_settings.xml
        /// This makes little sense now.  This is the upgrade path.
        /// Convert all existing favorites to the best of our effort into a playlist.
        /// </summary>
        /// <param name="levelIdToCustomLevel"></param>
        /// <param name="levelIdToSongVersion"></param>
        public void ConvertFavoritesToPlaylist(Dictionary <String, SongLoaderPlugin.OverrideClasses.CustomLevel> levelIdToCustomLevel,
                                               Dictionary <string, string> levelIdToSongVersion)
        {
            // Check if we have favorites to convert to the playlist
            if (this.Favorites.Count <= 0)
            {
                return;
            }

            // check if the playlist exists
            String playlistPath   = Path.Combine(Environment.CurrentDirectory, "Playlists", DefaultConvertedFavoritesPlaylistName);
            bool   playlistExists = false;

            if (File.Exists(playlistPath))
            {
                playlistExists = true;
            }

            // abort here if playlist already exits.
            if (playlistExists)
            {
                Logger.Info("Not converting song_browser_setting.xml favorites because {0} already exists...", playlistPath);
                return;
            }

            Logger.Info("Converting {0} Favorites in song_browser_settings.xml to {1}...", this.Favorites.Count, playlistPath);

            // written like this in case we ever want to support adding to this playlist
            Playlist p = null;

            if (playlistExists)
            {
                p = Playlist.LoadPlaylist(playlistPath);
            }
            else
            {
                p = new Playlist
                {
                    playlistTitle  = "Song Browser Favorites",
                    playlistAuthor = "SongBrowser",
                    fileLoc        = "",
                    image          = Base64Sprites.PlaylistIconB64,
                    songs          = new List <PlaylistSong>(),
                };
            }

            List <String> successfullyRemoved = new List <string>();

            this.Favorites.RemoveWhere(levelId =>
            {
                PlaylistSong playlistSong = new PlaylistSong
                {
                    levelId = levelId
                };

                if (levelIdToCustomLevel.ContainsKey(levelId) && levelIdToSongVersion.ContainsKey(levelId))
                {
                    playlistSong.songName = levelIdToCustomLevel[levelId].songName;
                    playlistSong.key      = levelIdToSongVersion[levelId];
                }
                else
                {
                    // No easy way to look up original songs... They will still work but have wrong song name in playlist.
                    playlistSong.songName = levelId;
                    playlistSong.key      = "";
                }

                p.songs.Add(playlistSong);

                return(true);
            });

            p.SavePlaylist(playlistPath);

            if (String.IsNullOrEmpty(this.currentEditingPlaylistFile))
            {
                this.currentEditingPlaylistFile = playlistPath;
            }

            this.Save();
        }
        /// <summary>
        /// Load the settings file for this plugin.
        /// If we fail to load return Default settings.
        /// </summary>
        /// <returns>SongBrowserSettings</returns>
        public static SongBrowserSettings Load()
        {
            Logger.Trace("Load()");
            SongBrowserSettings retVal = null;

            // No Settings file.
            String settingsFilePath = SongBrowserSettings.SettingsPath();

            if (File.Exists(settingsFilePath))
            {
                // Deserialization from JSON
                FileStream fs = null;
                try
                {
                    fs = File.OpenRead(settingsFilePath);
                    XmlSerializer serializer = new XmlSerializer(typeof(SongBrowserSettings));
                    retVal = (SongBrowserSettings)serializer.Deserialize(fs);

                    // Success loading, sane time to make a backup
                    retVal.SaveBackup();
                }
                catch (Exception e)
                {
                    Logger.Exception("Unable to deserialize song browser settings file, using default settings: ", e);
                    retVal = new SongBrowserSettings
                    {
                        DisableSavingSettings = true
                    };
                }
                finally
                {
                    if (fs != null)
                    {
                        fs.Close();
                    }
                }
            }
            else
            {
                Logger.Debug("Settings file does not exist, returning defaults: " + settingsFilePath);
                retVal = new SongBrowserSettings();
            }

            // check if the playlist directory exists, make it otherwise.
            String playlistDirPath = Path.Combine(Environment.CurrentDirectory, "Playlists");

            if (!Directory.Exists(playlistDirPath))
            {
                Directory.CreateDirectory(playlistDirPath);
            }

            // Load Downloader favorites but only once, we'll convert them once, empty the song_browser_setting.xml favorites and never load it again.
            String playlistPath = Path.Combine(Environment.CurrentDirectory, "Playlists", DefaultConvertedFavoritesPlaylistName);

            if (!File.Exists(playlistPath))
            {
                if (File.Exists(SongBrowserSettings.DownloaderFavoritesFilePath()))
                {
                    String[] downloaderFavorites = File.ReadAllLines(SongBrowserSettings.DownloaderFavoritesFilePath());
                    retVal.Favorites.UnionWith(downloaderFavorites);
                }

                Playlist p = new Playlist
                {
                    playlistTitle  = "Song Browser Favorites",
                    playlistAuthor = "SongBrowser",
                    fileLoc        = "",
                    image          = Base64Sprites.PlaylistIconB64,
                    songs          = new List <PlaylistSong>(),
                };
                p.CreateNew(playlistPath);
            }

            if (String.IsNullOrEmpty(retVal.currentEditingPlaylistFile))
            {
                retVal.currentEditingPlaylistFile = playlistPath;
            }


            return(retVal);
        }
        /// <summary>
        /// Favorites used to exist as part of the song_browser_settings.xml
        /// This makes little sense now.  This is the upgrade path.
        /// Convert all existing favorites to the best of our effort into a playlist.
        /// </summary>
        /// <param name="levelIdToCustomLevel"></param>
        /// <param name="levelIdToSongVersion"></param>
        public void ConvertFavoritesToPlaylist(Dictionary <String, CustomPreviewBeatmapLevel> customSongsMap)
        {
            // map songs in case we are converting a huge list
            Dictionary <String, CustomPreviewBeatmapLevel> levelIdToCustomLevel = new Dictionary <string, CustomPreviewBeatmapLevel>(StringComparer.OrdinalIgnoreCase);

            foreach (var kp in customSongsMap)
            {
                if (levelIdToCustomLevel.ContainsKey(kp.Value.levelID))
                {
                    continue;
                }
                levelIdToCustomLevel.Add(kp.Value.levelID, kp.Value);
            }

            // Check if we have favorites to convert to the playlist
            if (this.Favorites.Count <= 0)
            {
                return;
            }

            // check if the playlist exists
            String playlistPath   = Path.Combine(Environment.CurrentDirectory, "Playlists", DefaultConvertedFavoritesPlaylistName);
            bool   playlistExists = false;

            if (File.Exists(playlistPath))
            {
                playlistExists = true;
            }

            // abort here if playlist already exits.
            if (playlistExists)
            {
                Logger.Info("Not converting song_browser_setting.xml favorites because {0} already exists...", playlistPath);
                return;
            }

            Logger.Info("Converting {0} Favorites in song_browser_settings.xml to {1}...", this.Favorites.Count, playlistPath);

            // written like this in case we ever want to support adding to this playlist
            Playlist p = null;

            if (playlistExists)
            {
                p = Playlist.LoadPlaylist(playlistPath);
            }
            else
            {
                p = new Playlist
                {
                    playlistTitle  = "Song Browser Favorites",
                    playlistAuthor = "SongBrowser",
                    fileLoc        = "",
                    image          = Base64Sprites.SpriteToBase64(Base64Sprites.BeastSaberLogo),
                    songs          = new List <PlaylistSong>(),
                };
            }

            List <String> successfullyRemoved = new List <string>();

            this.Favorites.RemoveWhere(levelId =>
            {
                PlaylistSong playlistSong = new PlaylistSong
                {
                    levelId = levelId
                };

                if (levelIdToCustomLevel.ContainsKey(levelId))
                {
                    playlistSong.songName = levelIdToCustomLevel[levelId].songName;
                    playlistSong.levelId  = levelId;
                    playlistSong.hash     = CustomHelpers.GetSongHash(levelId);
                }
                else
                {
                    // No easy way to look up original songs... They will still work but have wrong song name in playlist.
                    playlistSong.levelId = levelId;
                    playlistSong.hash    = CustomHelpers.GetSongHash(levelId);
                    playlistSong.key     = "";
                }

                p.songs.Add(playlistSong);

                return(true);
            });

            p.SavePlaylist(playlistPath);

            if (String.IsNullOrEmpty(this.currentEditingPlaylistFile))
            {
                this.currentEditingPlaylistFile = playlistPath;
            }

            this.Save();
        }