rework additional repositories

3 files changed, 278 insertions, 2 deletions

diff --git a/Emby.Server.Implementations/Data/BaseSqliteRepository.cs b/Emby.Server.Implementations/Data/BaseSqliteRepository.cs
index c7ac630a0..8febe83b2 100644
--- a/Emby.Server.Implementations/Data/BaseSqliteRepository.cs
+++ b/Emby.Server.Implementations/Data/BaseSqliteRepository.cs
@@ -69,7 +69,7 @@ namespace Emby.Server.Implementations.Data
             //}
 
             db.ExecuteAll(string.Join(";", queries));
-
+            
             return db;
         }
 
@@ -119,5 +119,27 @@ namespace Emby.Server.Implementations.Data
         {
 
         }
+
+        protected void AddColumn(IDatabaseConnection connection, string table, string columnName, string type)
+        {
+            foreach (var row in connection.Query("PRAGMA table_info(" + table + ")"))
+            {
+                if (row[1].SQLiteType != SQLiteType.Null)
+                {
+                    var name = row[1].ToString();
+
+                    if (string.Equals(name, columnName, StringComparison.OrdinalIgnoreCase))
+                    {
+                        return;
+                    }
+                }
+            }
+
+            connection.ExecuteAll(string.Join(";", new string[]
+            {
+                "alter table " + table,
+                "add column " + columnName + " " + type + " NULL"
+            }));
+        }
     }
 }
diff --git a/Emby.Server.Implementations/Data/SqliteDisplayPreferencesRepository.cs b/Emby.Server.Implementations/Data/SqliteDisplayPreferencesRepository.cs
new file mode 100644
index 000000000..79fc893f4
--- /dev/null
+++ b/Emby.Server.Implementations/Data/SqliteDisplayPreferencesRepository.cs
@@ -0,0 +1,228 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Threading;
+using System.Threading.Tasks;
+using MediaBrowser.Common.Configuration;
+using MediaBrowser.Common.Extensions;
+using MediaBrowser.Controller.Persistence;
+using MediaBrowser.Model.Entities;
+using MediaBrowser.Model.IO;
+using MediaBrowser.Model.Logging;
+using MediaBrowser.Model.Serialization;
+using SQLitePCL.pretty;
+
+namespace Emby.Server.Implementations.Data
+{
+    /// <summary>
+    /// Class SQLiteDisplayPreferencesRepository
+    /// </summary>
+    public class SqliteDisplayPreferencesRepository : BaseSqliteRepository, IDisplayPreferencesRepository
+    {
+        private readonly IMemoryStreamFactory _memoryStreamProvider;
+
+        public SqliteDisplayPreferencesRepository(ILogger logger, IJsonSerializer jsonSerializer, IApplicationPaths appPaths, IMemoryStreamFactory memoryStreamProvider)
+            : base(logger)
+        {
+            _jsonSerializer = jsonSerializer;
+            _memoryStreamProvider = memoryStreamProvider;
+            DbFilePath = Path.Combine(appPaths.DataPath, "displaypreferences.db");
+        }
+
+        /// <summary>
+        /// Gets the name of the repository
+        /// </summary>
+        /// <value>The name.</value>
+        public string Name
+        {
+            get
+            {
+                return "SQLite";
+            }
+        }
+
+        /// <summary>
+        /// The _json serializer
+        /// </summary>
+        private readonly IJsonSerializer _jsonSerializer;
+
+        /// <summary>
+        /// Opens the connection to the database
+        /// </summary>
+        /// <returns>Task.</returns>
+        public void Initialize()
+        {
+            using (var connection = CreateConnection())
+            {
+                string[] queries = {
+
+                                "create table if not exists userdisplaypreferences (id GUID, userId GUID, client text, data BLOB)",
+                                "create unique index if not exists userdisplaypreferencesindex on userdisplaypreferences (id, userId, client)"
+                               };
+
+                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>
+        /// <returns>Task.</returns>
+        /// <exception cref="System.ArgumentNullException">item</exception>
+        public async Task SaveDisplayPreferences(DisplayPreferences displayPreferences, Guid userId, string client, CancellationToken cancellationToken)
+        {
+            if (displayPreferences == null)
+            {
+                throw new ArgumentNullException("displayPreferences");
+            }
+            if (string.IsNullOrWhiteSpace(displayPreferences.Id))
+            {
+                throw new ArgumentNullException("displayPreferences.Id");
+            }
+
+            cancellationToken.ThrowIfCancellationRequested();
+
+            lock (WriteLock)
+            {
+                using (var connection = CreateConnection())
+                {
+                    connection.RunInTransaction(db =>
+                    {
+                        SaveDisplayPreferences(displayPreferences, userId, client, db);
+                    });
+                }
+            }
+        }
+
+        private void SaveDisplayPreferences(DisplayPreferences displayPreferences, Guid userId, string client, IDatabaseConnection connection)
+        {
+            var commandText = "replace into userdisplaypreferences (id, userid, client, data) values (?, ?, ?, ?)";
+            var serialized = _jsonSerializer.SerializeToBytes(displayPreferences, _memoryStreamProvider);
+
+            connection.Execute(commandText,
+                displayPreferences.Id.ToGuidParamValue(),
+                userId.ToGuidParamValue(),
+                client,
+                serialized);
+        }
+
+        /// <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>
+        /// <returns>Task.</returns>
+        /// <exception cref="System.ArgumentNullException">item</exception>
+        public async Task SaveAllDisplayPreferences(IEnumerable<DisplayPreferences> displayPreferences, Guid userId, CancellationToken cancellationToken)
+        {
+            if (displayPreferences == null)
+            {
+                throw new ArgumentNullException("displayPreferences");
+            }
+
+            cancellationToken.ThrowIfCancellationRequested();
+
+            lock (WriteLock)
+            {
+                using (var connection = CreateConnection())
+                {
+                    connection.RunInTransaction(db =>
+                    {
+                        foreach (var displayPreference in displayPreferences)
+                        {
+                            SaveDisplayPreferences(displayPreference, userId, displayPreference.Client, db);
+                        }
+                    });
+                }
+            }
+        }
+
+        /// <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="System.ArgumentNullException">item</exception>
+        public DisplayPreferences GetDisplayPreferences(string displayPreferencesId, Guid userId, string client)
+        {
+            if (string.IsNullOrWhiteSpace(displayPreferencesId))
+            {
+                throw new ArgumentNullException("displayPreferencesId");
+            }
+
+            var guidId = displayPreferencesId.GetMD5();
+
+            using (var connection = CreateConnection(true))
+            {
+                var commandText = "select data from userdisplaypreferences where id = ? and userId=? and client=?";
+
+                var paramList = new List<object>();
+                paramList.Add(guidId.ToGuidParamValue());
+                paramList.Add(userId.ToGuidParamValue());
+                paramList.Add(client);
+
+                foreach (var row in connection.Query(commandText, paramList.ToArray()))
+                {
+                    return Get(row);
+                }
+
+                return new DisplayPreferences
+                {
+                    Id = guidId.ToString("N")
+                };
+            }
+        }
+
+        /// <summary>
+        /// Gets all display preferences for the given user.
+        /// </summary>
+        /// <param name="userId">The user id.</param>
+        /// <returns>Task{DisplayPreferences}.</returns>
+        /// <exception cref="System.ArgumentNullException">item</exception>
+        public IEnumerable<DisplayPreferences> GetAllDisplayPreferences(Guid userId)
+        {
+            var list = new List<DisplayPreferences>();
+
+            using (var connection = CreateConnection(true))
+            {
+                var commandText = "select data from userdisplaypreferences where userId=?";
+
+                var paramList = new List<object>();
+                paramList.Add(userId.ToGuidParamValue());
+
+                foreach (var row in connection.Query(commandText, paramList.ToArray()))
+                {
+                    list.Add(Get(row));
+                }
+            }
+
+            return list;
+        }
+
+        private DisplayPreferences Get(IReadOnlyList<IResultSetValue> row)
+        {
+            using (var stream = _memoryStreamProvider.CreateNew(row[0].ToBlob()))
+            {
+                stream.Position = 0;
+                return _jsonSerializer.DeserializeFromStream<DisplayPreferences>(stream);
+            }
+        }
+
+        public Task SaveDisplayPreferences(DisplayPreferences displayPreferences, string userId, string client, CancellationToken cancellationToken)
+        {
+            return SaveDisplayPreferences(displayPreferences, new Guid(userId), client, cancellationToken);
+        }
+
+        public DisplayPreferences GetDisplayPreferences(string displayPreferencesId, string userId, string client)
+        {
+            return GetDisplayPreferences(displayPreferencesId, new Guid(userId), client);
+        }
+    }
+}
\ No newline at end of file
diff --git a/Emby.Server.Implementations/Data/SqliteExtensions.cs b/Emby.Server.Implementations/Data/SqliteExtensions.cs
index 62615c669..d9536ae9c 100644
--- a/Emby.Server.Implementations/Data/SqliteExtensions.cs
+++ b/Emby.Server.Implementations/Data/SqliteExtensions.cs
@@ -1,5 +1,7 @@
 using System;
 using System.Globalization;
+using MediaBrowser.Model.IO;
+using MediaBrowser.Model.Serialization;
 using SQLitePCL.pretty;
 
 namespace Emby.Server.Implementations.Data
@@ -25,7 +27,12 @@ namespace Emby.Server.Implementations.Data
 
         public static byte[] ToGuidParamValue(this string str)
         {
-            return new Guid(str).ToByteArray();
+            return ToGuidParamValue(new Guid(str));
+        }
+
+        public static byte[] ToGuidParamValue(this Guid guid)
+        {
+            return guid.ToByteArray();
         }
 
         public static Guid ReadGuid(this IResultSetValue result)
@@ -101,5 +108,24 @@ namespace Emby.Server.Implementations.Data
                 DateTimeFormatInfo.InvariantInfo,
                 DateTimeStyles.None).ToUniversalTime();
         }
+
+        /// <summary>
+        /// Serializes to bytes.
+        /// </summary>
+        /// <returns>System.Byte[][].</returns>
+        /// <exception cref="System.ArgumentNullException">obj</exception>
+        public static byte[] SerializeToBytes(this IJsonSerializer json, object obj, IMemoryStreamFactory streamProvider)
+        {
+            if (obj == null)
+            {
+                throw new ArgumentNullException("obj");
+            }
+
+            using (var stream = streamProvider.CreateNew())
+            {
+                json.SerializeToStream(obj, stream);
+                return stream.ToArray();
+            }
+        }
     }
 }