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using System ;
using System.Globalization ;
using System.Threading ;
using MediaBrowser.Model.Events ;
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using Microsoft.Extensions.Logging ;
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using MediaBrowser.Model.Tasks ;
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namespace Emby.Server.Implementations.ScheduledTasks
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{
/// <summary>
/// Represents a task trigger that fires everyday
/// </summary>
public class DailyTrigger : ITaskTrigger
{
/// <summary>
/// Get the time of day to trigger the task to run
/// </summary>
/// <value>The time of day.</value>
public TimeSpan TimeOfDay { get ; set ; }
/// <summary>
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/// Gets or sets the options of this task.
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/// </summary>
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public TaskOptions TaskOptions { get ; set ; }
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/// <summary>
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/// Gets or sets the timer.
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/// </summary>
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/// <value>The timer.</value>
private Timer Timer { get ; set ; }
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/// <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 ( ) ;
var now = DateTime . Now ;
var triggerDate = now . TimeOfDay > TimeOfDay ? now . Date . AddDays ( 1 ) : now . Date ;
triggerDate = triggerDate . Add ( TimeOfDay ) ;
var dueTime = triggerDate - now ;
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logger . LogInformation ( "Daily trigger for {0} set to fire at {1}, which is {2} minutes from now." , taskName , triggerDate . ToString ( ) , dueTime . TotalMinutes . ToString ( CultureInfo . InvariantCulture ) ) ;
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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>
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public event EventHandler < EventArgs > Triggered ;
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/// <summary>
/// Called when [triggered].
/// </summary>
private void OnTriggered ( )
{
if ( Triggered ! = null )
{
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Triggered ( this , EventArgs . Empty ) ;
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}
}
}
}