From 8ce3e74e8112a94773df22827849bf274fc88198 Mon Sep 17 00:00:00 2001
From: LukePulverenti <luke.pulverenti@gmail.com>
Date: Sun, 24 Feb 2013 16:53:54 -0500
Subject: More DI

---
 .../ScheduledTasks/Tasks/SystemUpdateTask.cs       | 122 +++++++++++++++++++++
 1 file changed, 122 insertions(+)
 create mode 100644 MediaBrowser.Common.Implementations/ScheduledTasks/Tasks/SystemUpdateTask.cs

(limited to 'MediaBrowser.Common.Implementations/ScheduledTasks/Tasks/SystemUpdateTask.cs')

diff --git a/MediaBrowser.Common.Implementations/ScheduledTasks/Tasks/SystemUpdateTask.cs b/MediaBrowser.Common.Implementations/ScheduledTasks/Tasks/SystemUpdateTask.cs
new file mode 100644
index 000000000..a101ad3dd
--- /dev/null
+++ b/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."; }
+        }
+    }
+}
-- 
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