From 07072d9f7bf269926a4d7aad580e2e78c444a2cd Mon Sep 17 00:00:00 2001
From: dkanada <dkanada@users.noreply.github.com>
Date: Thu, 31 Jan 2019 15:12:18 +0900
Subject: move all scheduled tasks and triggers into folders

---
 .../ScheduledTasks/Triggers/IntervalTrigger.cs     | 108 +++++++++++++++++++++
 1 file changed, 108 insertions(+)
 create mode 100644 Emby.Server.Implementations/ScheduledTasks/Triggers/IntervalTrigger.cs

(limited to 'Emby.Server.Implementations/ScheduledTasks/Triggers/IntervalTrigger.cs')

diff --git a/Emby.Server.Implementations/ScheduledTasks/Triggers/IntervalTrigger.cs b/Emby.Server.Implementations/ScheduledTasks/Triggers/IntervalTrigger.cs
new file mode 100644
index 0000000000..3a34da3af2
--- /dev/null
+++ b/Emby.Server.Implementations/ScheduledTasks/Triggers/IntervalTrigger.cs
@@ -0,0 +1,108 @@
+using System;
+using System.Linq;
+using System.Threading;
+using MediaBrowser.Model.Tasks;
+using Microsoft.Extensions.Logging;
+
+namespace Emby.Server.Implementations.ScheduledTasks
+{
+    /// <summary>
+    /// Represents a task trigger that runs repeatedly on an interval
+    /// </summary>
+    public class IntervalTrigger : ITaskTrigger
+    {
+        /// <summary>
+        /// Gets or sets the interval.
+        /// </summary>
+        /// <value>The interval.</value>
+        public TimeSpan Interval { get; set; }
+
+        /// <summary>
+        /// Gets or sets the options of this task.
+        /// </summary>
+        public TaskOptions TaskOptions { get; set; }
+
+        /// <summary>
+        /// Gets or sets the timer.
+        /// </summary>
+        /// <value>The timer.</value>
+        private Timer Timer { get; set; }
+
+        private DateTime _lastStartDate;
+
+        /// <summary>
+        /// Stars waiting for the trigger action
+        /// </summary>
+        /// <param name="lastResult">The last result.</param>
+        /// <param name="isApplicationStartup">if set to <c>true</c> [is application startup].</param>
+        public void Start(TaskResult lastResult, ILogger logger, string taskName, bool isApplicationStartup)
+        {
+            DisposeTimer();
+
+            DateTime triggerDate;
+
+            if (lastResult == null)
+            {
+                // Task has never been completed before
+                triggerDate = DateTime.UtcNow.AddHours(1);
+            }
+            else
+            {
+                triggerDate = new[] { lastResult.EndTimeUtc, _lastStartDate }.Max().Add(Interval);
+            }
+
+            if (DateTime.UtcNow > triggerDate)
+            {
+                triggerDate = DateTime.UtcNow.AddMinutes(1);
+            }
+
+            var dueTime = triggerDate - DateTime.UtcNow;
+            var maxDueTime = TimeSpan.FromDays(7);
+
+            if (dueTime > maxDueTime)
+            {
+                dueTime = maxDueTime;
+            }
+
+            Timer = new Timer(state => OnTriggered(), null, dueTime, TimeSpan.FromMilliseconds(-1));
+        }
+
+        /// <summary>
+        /// Stops waiting for the trigger action
+        /// </summary>
+        public void Stop()
+        {
+            DisposeTimer();
+        }
+
+        /// <summary>
+        /// Disposes the timer.
+        /// </summary>
+        private void DisposeTimer()
+        {
+            if (Timer != null)
+            {
+                Timer.Dispose();
+            }
+        }
+
+        /// <summary>
+        /// Occurs when [triggered].
+        /// </summary>
+        public event EventHandler<EventArgs> Triggered;
+
+        /// <summary>
+        /// Called when [triggered].
+        /// </summary>
+        private void OnTriggered()
+        {
+            DisposeTimer();
+
+            if (Triggered != null)
+            {
+                _lastStartDate = DateTime.UtcNow;
+                Triggered(this, EventArgs.Empty);
+            }
+        }
+    }
+}
-- 
cgit v1.2.3