1 files changed, 225 insertions, 0 deletions
diff --git a/Emby.Server.Implementations/Data/SqliteDisplayPreferencesRepository.cs b/Emby.Server.Implementations/Data/SqliteDisplayPreferencesRepository.cs
new file mode 100644
index 000000000..63d0321b7
--- /dev/null
+++ b/Emby.Server.Implementations/Data/SqliteDisplayPreferencesRepository.cs
@@ -0,0 +1,225 @@
+#pragma warning disable CS1591
+
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.IO;
+using System.Text.Json;
+using System.Threading;
+using MediaBrowser.Common.Configuration;
+using MediaBrowser.Common.Extensions;
+using MediaBrowser.Common.Json;
+using MediaBrowser.Controller.Persistence;
+using MediaBrowser.Model.Entities;
+using MediaBrowser.Model.IO;
+using Microsoft.Extensions.Logging;
+using SQLitePCL.pretty;
+
+namespace Emby.Server.Implementations.Data
+{
+    /// <summary>
+    /// Class SQLiteDisplayPreferencesRepository.
+    /// </summary>
+    public class SqliteDisplayPreferencesRepository : BaseSqliteRepository, IDisplayPreferencesRepository
+    {
+        private readonly IFileSystem _fileSystem;
+
+        private readonly JsonSerializerOptions _jsonOptions;
+
+        public SqliteDisplayPreferencesRepository(ILogger<SqliteDisplayPreferencesRepository> logger, IApplicationPaths appPaths, IFileSystem fileSystem)
+            : base(logger)
+        {
+            _fileSystem = fileSystem;
+
+            _jsonOptions = JsonDefaults.GetOptions();
+
+            DbFilePath = Path.Combine(appPaths.DataPath, "displaypreferences.db");
+        }
+
+        /// <summary>
+        /// Gets the name of the repository.
+        /// </summary>
+        /// <value>The name.</value>
+        public string Name => "SQLite";
+
+        public void Initialize()
+        {
+            try
+            {
+                InitializeInternal();
+            }
+            catch (Exception ex)
+            {
+                Logger.LogError(ex, "Error loading database file. Will reset and retry.");
+
+                _fileSystem.DeleteFile(DbFilePath);
+
+                InitializeInternal();
+            }
+        }
+
+        /// <summary>
+        /// Opens the connection to the database
+        /// </summary>
+        /// <returns>Task.</returns>
+        private void InitializeInternal()
+        {
+            string[] queries =
+            {
+                "create table if not exists userdisplaypreferences (id GUID NOT NULL, userId GUID NOT NULL, client text NOT NULL, data BLOB NOT NULL)",
+                "create unique index if not exists userdisplaypreferencesindex on userdisplaypreferences (id, userId, client)"
+            };
+
+            using (var connection = GetConnection())
+            {
+                connection.RunQueries(queries);
+            }
+        }
+
+        /// <summary>
+        /// Save the display preferences associated with an item in the repo
+        /// </summary>
+        /// <param name="displayPreferences">The display preferences.</param>
+        /// <param name="userId">The user id.</param>
+        /// <param name="client">The client.</param>
+        /// <param name="cancellationToken">The cancellation token.</param>
+        /// <exception cref="ArgumentNullException">item</exception>
+        public void SaveDisplayPreferences(DisplayPreferences displayPreferences, Guid userId, string client, CancellationToken cancellationToken)
+        {
+            if (displayPreferences == null)
+            {
+                throw new ArgumentNullException(nameof(displayPreferences));
+            }
+
+            if (string.IsNullOrEmpty(displayPreferences.Id))
+            {
+                throw new ArgumentException("Display preferences has an invalid Id", nameof(displayPreferences));
+            }
+
+            cancellationToken.ThrowIfCancellationRequested();
+
+            using (var connection = GetConnection())
+            {
+                connection.RunInTransaction(
+                    db => SaveDisplayPreferences(displayPreferences, userId, client, db),
+                    TransactionMode);
+            }
+        }
+
+        private void SaveDisplayPreferences(DisplayPreferences displayPreferences, Guid userId, string client, IDatabaseConnection connection)
+        {
+            var serialized = JsonSerializer.SerializeToUtf8Bytes(displayPreferences, _jsonOptions);
+
+            using (var statement = connection.PrepareStatement("replace into userdisplaypreferences (id, userid, client, data) values (@id, @userId, @client, @data)"))
+            {
+                statement.TryBind("@id", new Guid(displayPreferences.Id).ToByteArray());
+                statement.TryBind("@userId", userId.ToByteArray());
+                statement.TryBind("@client", client);
+                statement.TryBind("@data", serialized);
+
+                statement.MoveNext();
+            }
+        }
+
+        /// <summary>
+        /// Save all display preferences associated with a user in the repo
+        /// </summary>
+        /// <param name="displayPreferences">The display preferences.</param>
+        /// <param name="userId">The user id.</param>
+        /// <param name="cancellationToken">The cancellation token.</param>
+        /// <exception cref="ArgumentNullException">item</exception>
+        public void SaveAllDisplayPreferences(IEnumerable<DisplayPreferences> displayPreferences, Guid userId, CancellationToken cancellationToken)
+        {
+            if (displayPreferences == null)
+            {
+                throw new ArgumentNullException(nameof(displayPreferences));
+            }
+
+            cancellationToken.ThrowIfCancellationRequested();
+
+            using (var connection = GetConnection())
+            {
+                connection.RunInTransaction(
+                    db =>
+                    {
+                        foreach (var displayPreference in displayPreferences)
+                        {
+                            SaveDisplayPreferences(displayPreference, userId, displayPreference.Client, db);
+                        }
+                    },
+                    TransactionMode);
+            }
+        }
+
+        /// <summary>
+        /// Gets the display preferences.
+        /// </summary>
+        /// <param name="displayPreferencesId">The display preferences id.</param>
+        /// <param name="userId">The user id.</param>
+        /// <param name="client">The client.</param>
+        /// <returns>Task{DisplayPreferences}.</returns>
+        /// <exception cref="ArgumentNullException">item</exception>
+        public DisplayPreferences GetDisplayPreferences(string displayPreferencesId, Guid userId, string client)
+        {
+            if (string.IsNullOrEmpty(displayPreferencesId))
+            {
+                throw new ArgumentNullException(nameof(displayPreferencesId));
+            }
+
+            var guidId = displayPreferencesId.GetMD5();
+
+            using (var connection = GetConnection(true))
+            {
+                using (var statement = connection.PrepareStatement("select data from userdisplaypreferences where id = @id and userId=@userId and client=@client"))
+                {
+                    statement.TryBind("@id", guidId.ToByteArray());
+                    statement.TryBind("@userId", userId.ToByteArray());
+                    statement.TryBind("@client", client);
+
+                    foreach (var row in statement.ExecuteQuery())
+                    {
+                        return Get(row);
+                    }
+                }
+            }
+
+            return new DisplayPreferences
+            {
+                Id = guidId.ToString("N", CultureInfo.InvariantCulture)
+            };
+        }
+
+        /// <summary>
+        /// Gets all display preferences for the given user.
+        /// </summary>
+        /// <param name="userId">The user id.</param>
+        /// <returns>Task{DisplayPreferences}.</returns>
+        /// <exception cref="ArgumentNullException">item</exception>
+        public IEnumerable<DisplayPreferences> GetAllDisplayPreferences(Guid userId)
+        {
+            var list = new List<DisplayPreferences>();
+
+            using (var connection = GetConnection(true))
+            using (var statement = connection.PrepareStatement("select data from userdisplaypreferences where userId=@userId"))
+            {
+                statement.TryBind("@userId", userId.ToByteArray());
+
+                foreach (var row in statement.ExecuteQuery())
+                {
+                    list.Add(Get(row));
+                }
+            }
+
+            return list;
+        }
+
+        private DisplayPreferences Get(IReadOnlyList<IResultSetValue> row)
+            => JsonSerializer.Deserialize<DisplayPreferences>(row[0].ToBlob(), _jsonOptions);
+
+        public void SaveDisplayPreferences(DisplayPreferences displayPreferences, string userId, string client, CancellationToken cancellationToken)
+            => SaveDisplayPreferences(displayPreferences, new Guid(userId), client, cancellationToken);
+
+        public DisplayPreferences GetDisplayPreferences(string displayPreferencesId, string userId, string client)
+            => GetDisplayPreferences(displayPreferencesId, new Guid(userId), client);
+    }
+}