More DI

MediaBrowser.Common.Implementations/ScheduledTasks/Tasks/DeleteCacheFileTask.cs

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+using MediaBrowser.Common.Kernel;
+using MediaBrowser.Common.ScheduledTasks;
+using MediaBrowser.Model.Logging;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace MediaBrowser.Common.Implementations.ScheduledTasks.Tasks
+{
+    /// <summary>
+    /// Deletes old cache files
+    /// </summary>
+    public class DeleteCacheFileTask : BaseScheduledTask<IKernel>
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="DeleteCacheFileTask" /> class.
+        /// </summary>
+        /// <param name="kernel">The kernel.</param>
+        /// <param name="taskManager">The task manager.</param>
+        /// <param name="logger">The logger.</param>
+        public DeleteCacheFileTask(IKernel kernel, ITaskManager taskManager, ILogger logger)
+            : base(kernel, taskManager, logger)
+        {
+        }
+
+        /// <summary>
+        /// Creates the triggers that define when the task will run
+        /// </summary>
+        /// <returns>IEnumerable{BaseTaskTrigger}.</returns>
+        public override IEnumerable<ITaskTrigger> GetDefaultTriggers()
+        {
+            var trigger = new DailyTrigger { TimeOfDay = TimeSpan.FromHours(2) }; //2am
+
+            return new[] { trigger };
+        }
+
+        /// <summary>
+        /// Returns the task to be executed
+        /// </summary>
+        /// <param name="cancellationToken">The cancellation token.</param>
+        /// <param name="progress">The progress.</param>
+        /// <returns>Task.</returns>
+        protected override Task ExecuteInternal(CancellationToken cancellationToken, IProgress<double> progress)
+        {
+            return Task.Run(() =>
+            {
+                var minDateModified = DateTime.UtcNow.AddMonths(-2);
+
+                DeleteCacheFilesFromDirectory(cancellationToken, Kernel.ApplicationPaths.CachePath, minDateModified, progress);
+            });
+        }
+
+
+        /// <summary>
+        /// Deletes the cache files from directory with a last write time less than a given date
+        /// </summary>
+        /// <param name="cancellationToken">The task cancellation token.</param>
+        /// <param name="directory">The directory.</param>
+        /// <param name="minDateModified">The min date modified.</param>
+        /// <param name="progress">The progress.</param>
+        private void DeleteCacheFilesFromDirectory(CancellationToken cancellationToken, string directory, DateTime minDateModified, IProgress<double> progress)
+        {
+            var filesToDelete = new DirectoryInfo(directory).EnumerateFileSystemInfos("*", SearchOption.AllDirectories)
+                .Where(f => !f.Attributes.HasFlag(FileAttributes.Directory) && f.LastWriteTimeUtc < minDateModified)
+                .ToList();
+
+            var index = 0;
+
+            foreach (var file in filesToDelete)
+            {
+                double percent = index;
+                percent /= filesToDelete.Count;
+
+                progress.Report(100 * percent);
+
+                cancellationToken.ThrowIfCancellationRequested();
+
+                File.Delete(file.FullName);
+
+                index++;
+            }
+
+            progress.Report(100);
+        }
+
+        /// <summary>
+        /// Gets the name of the task
+        /// </summary>
+        /// <value>The name.</value>
+        public override string Name
+        {
+            get { return "Cache file cleanup"; }
+        }
+
+        /// <summary>
+        /// Gets the description.
+        /// </summary>
+        /// <value>The description.</value>
+        public override string Description
+        {
+            get { return "Deletes cache files no longer needed by the system"; }
+        }
+
+        /// <summary>
+        /// Gets the category.
+        /// </summary>
+        /// <value>The category.</value>
+        public override string Category
+        {
+            get
+            {
+                return "Maintenance";
+            }
+        }
+    }
+}

MediaBrowser.Common.Implementations/ScheduledTasks/Tasks/DeleteLogFileTask.cs

@@ -0,0 +1,107 @@
+using MediaBrowser.Common.Kernel;
+using MediaBrowser.Common.ScheduledTasks;
+using MediaBrowser.Model.Logging;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace MediaBrowser.Common.Implementations.ScheduledTasks.Tasks
+{
+    /// <summary>
+    /// Deletes old log files
+    /// </summary>
+    public class DeleteLogFileTask : BaseScheduledTask<IKernel>
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="DeleteLogFileTask" /> class.
+        /// </summary>
+        /// <param name="kernel">The kernel.</param>
+        /// <param name="taskManager">The task manager.</param>
+        /// <param name="logger">The logger.</param>
+        public DeleteLogFileTask(IKernel kernel, ITaskManager taskManager, ILogger logger)
+            : base(kernel, taskManager, logger)
+        {
+        }
+
+        /// <summary>
+        /// Creates the triggers that define when the task will run
+        /// </summary>
+        /// <returns>IEnumerable{BaseTaskTrigger}.</returns>
+        public override IEnumerable<ITaskTrigger> GetDefaultTriggers()
+        {
+            var trigger = new DailyTrigger { TimeOfDay = TimeSpan.FromHours(2) }; //2am
+
+            return new[] { trigger };
+        }
+
+        /// <summary>
+        /// Returns the task to be executed
+        /// </summary>
+        /// <param name="cancellationToken">The cancellation token.</param>
+        /// <param name="progress">The progress.</param>
+        /// <returns>Task.</returns>
+        protected override Task ExecuteInternal(CancellationToken cancellationToken, IProgress<double> progress)
+        {
+            return Task.Run(() =>
+            {
+                // Delete log files more than n days old
+                var minDateModified = DateTime.UtcNow.AddDays(-(Kernel.Configuration.LogFileRetentionDays));
+
+                var filesToDelete = new DirectoryInfo(Kernel.ApplicationPaths.LogDirectoryPath).EnumerateFileSystemInfos("*", SearchOption.AllDirectories)
+                              .Where(f => f.LastWriteTimeUtc < minDateModified)
+                              .ToList();
+
+                var index = 0;
+
+                foreach (var file in filesToDelete)
+                {
+                    double percent = index;
+                    percent /= filesToDelete.Count;
+
+                    progress.Report(100 * percent);
+
+                    cancellationToken.ThrowIfCancellationRequested();
+
+                    File.Delete(file.FullName);
+
+                    index++;
+                }
+
+                progress.Report(100);
+            });
+        }
+
+        /// <summary>
+        /// Gets the name of the task
+        /// </summary>
+        /// <value>The name.</value>
+        public override string Name
+        {
+            get { return "Log file cleanup"; }
+        }
+
+        /// <summary>
+        /// Gets the description.
+        /// </summary>
+        /// <value>The description.</value>
+        public override string Description
+        {
+            get { return string.Format("Deletes log files that are more than {0} days old.", Kernel.Configuration.LogFileRetentionDays); }
+        }
+
+        /// <summary>
+        /// Gets the category.
+        /// </summary>
+        /// <value>The category.</value>
+        public override string Category
+        {
+            get
+            {
+                return "Maintenance";
+            }
+        }
+    }
+}

MediaBrowser.Common.Implementations/ScheduledTasks/Tasks/ReloadLoggerTask.cs

@@ -0,0 +1,71 @@
+using MediaBrowser.Common.Kernel;
+using MediaBrowser.Common.ScheduledTasks;
+using MediaBrowser.Model.Logging;
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace MediaBrowser.Common.Implementations.ScheduledTasks.Tasks
+{
+    /// <summary>
+    /// Class ReloadLoggerFileTask
+    /// </summary>
+    public class ReloadLoggerFileTask : BaseScheduledTask<IKernel>
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ReloadLoggerFileTask" /> class.
+        /// </summary>
+        /// <param name="kernel">The kernel.</param>
+        /// <param name="taskManager">The task manager.</param>
+        /// <param name="logger">The logger.</param>
+        public ReloadLoggerFileTask(IKernel kernel, ITaskManager taskManager, ILogger logger)
+            : base(kernel, taskManager, logger)
+        {
+        }
+
+        /// <summary>
+        /// Gets the default triggers.
+        /// </summary>
+        /// <returns>IEnumerable{BaseTaskTrigger}.</returns>
+        public override IEnumerable<ITaskTrigger> GetDefaultTriggers()
+        {
+            var trigger = new DailyTrigger { TimeOfDay = TimeSpan.FromHours(0) }; //12am
+
+            return new[] { trigger };
+        }
+
+        /// <summary>
+        /// Executes the internal.
+        /// </summary>
+        /// <param name="cancellationToken">The cancellation token.</param>
+        /// <param name="progress">The progress.</param>
+        /// <returns>Task.</returns>
+        protected override Task ExecuteInternal(CancellationToken cancellationToken, IProgress<double> progress)
+        {
+            cancellationToken.ThrowIfCancellationRequested();
+
+            progress.Report(0);
+            
+            return Task.Run(() => Kernel.ReloadLogger());
+        }
+
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        /// <value>The name.</value>
+        public override string Name
+        {
+            get { return "Start new log file"; }
+        }
+
+        /// <summary>
+        /// Gets the description.
+        /// </summary>
+        /// <value>The description.</value>
+        public override string Description
+        {
+            get { return "Moves logging to a new file to help reduce log file sizes."; }
+        }
+    }
+}

MediaBrowser.Common.Implementations/ScheduledTasks/Tasks/SystemUpdateTask.cs

@@ -0,0 +1,122 @@
+using MediaBrowser.Common.Kernel;
+using MediaBrowser.Common.ScheduledTasks;
+using MediaBrowser.Model.Logging;
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace MediaBrowser.Common.Implementations.ScheduledTasks.Tasks
+{
+    /// <summary>
+    /// Plugin Update Task
+    /// </summary>
+    public class SystemUpdateTask : BaseScheduledTask<IKernel>
+    {
+        /// <summary>
+        /// The _app host
+        /// </summary>
+        private readonly IApplicationHost _appHost;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="SystemUpdateTask" /> class.
+        /// </summary>
+        /// <param name="appHost">The app host.</param>
+        /// <param name="taskManager">The task manager.</param>
+        /// <param name="kernel">The kernel.</param>
+        /// <param name="logger">The logger.</param>
+        public SystemUpdateTask(IApplicationHost appHost, ITaskManager taskManager, IKernel kernel, ILogger logger)
+            : base(kernel, taskManager, logger)
+        {
+            _appHost = appHost;
+        }
+
+        /// <summary>
+        /// Creates the triggers that define when the task will run
+        /// </summary>
+        /// <returns>IEnumerable{BaseTaskTrigger}.</returns>
+        public override IEnumerable<ITaskTrigger> GetDefaultTriggers()
+        {
+            return new ITaskTrigger[] { 
+            
+                // 1am
+                new DailyTrigger { TimeOfDay = TimeSpan.FromHours(1) },
+
+                new IntervalTrigger { Interval = TimeSpan.FromHours(2)}
+            };
+        }
+
+        /// <summary>
+        /// Returns the task to be executed
+        /// </summary>
+        /// <param name="cancellationToken">The cancellation token.</param>
+        /// <param name="progress">The progress.</param>
+        /// <returns>Task.</returns>
+        protected override async Task ExecuteInternal(CancellationToken cancellationToken, IProgress<double> progress)
+        {
+            if (!_appHost.CanSelfUpdate) return;
+
+            EventHandler<double> innerProgressHandler = (sender, e) => progress.Report(e * .1);
+
+            // Create a progress object for the update check
+            var innerProgress = new Progress<double>();
+            innerProgress.ProgressChanged += innerProgressHandler;
+
+            var updateInfo = await _appHost.CheckForApplicationUpdate(cancellationToken, innerProgress).ConfigureAwait(false);
+
+            // Release the event handler
+            innerProgress.ProgressChanged -= innerProgressHandler;
+
+            progress.Report(10);
+
+            if (!updateInfo.IsUpdateAvailable)
+            {
+                progress.Report(100);
+                return;
+            }
+
+            cancellationToken.ThrowIfCancellationRequested();
+
+            if (Kernel.Configuration.EnableAutoUpdate)
+            {
+                Logger.Info("Update Revision {0} available.  Updating...", updateInfo.AvailableVersion);
+
+                innerProgressHandler = (sender, e) => progress.Report((e * .9) + .1);
+
+                innerProgress = new Progress<double>();
+                innerProgress.ProgressChanged += innerProgressHandler;
+
+                await _appHost.UpdateApplication(cancellationToken, innerProgress).ConfigureAwait(false);
+
+                // Release the event handler
+                innerProgress.ProgressChanged -= innerProgressHandler;
+                
+                Kernel.OnApplicationUpdated(updateInfo.AvailableVersion);
+            }
+            else
+            {
+                Logger.Info("A new version of Media Browser is available.");
+            }
+
+            progress.Report(100);
+        }
+
+        /// <summary>
+        /// Gets the name of the task
+        /// </summary>
+        /// <value>The name.</value>
+        public override string Name
+        {
+            get { return "Check for application updates"; }
+        }
+
+        /// <summary>
+        /// Gets the description.
+        /// </summary>
+        /// <value>The description.</value>
+        public override string Description
+        {
+            get { return "Downloads and installs application updates."; }
+        }
+    }
+}