Functions/Hue/Watch-HueSensor.ps1
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function Watch-HueSensor { <# .SYNOPSIS Watches Hue Sensors for changes .DESCRIPTION Watches Hue Sensors for changes. An event will be generated whenever a sensor changes. .LINK Get-HueSensor .EXAMPLE # Watch for events every minute Watch-HueSensor -Interval "00:01:00" # Whenever daylight changes Register-EngineEvent -SourceIdentifier Daylight.Changed -Action { if ($event.MessageData.state.Daylight) { Set-HueLight -Brightness 0.5 Set-NanoLeaf -Brightness 0.5 } else { Set-HueLight -Brightness 1 Set-NanoLeaf -Brightness 1 } } #> [OutputType([Management.Automation.Job])] param( # The interval hue sensors will be polled. By default, every 2.5 seconds. [Parameter(ValueFromPipelineByPropertyName)] [timespan] $Interval = '00:00:02.5' ) process { #region Define Background Job $watchJob = [scriptblock]::Create((@" Import-Module '$($MyInvocation.MyCommand.Module.Path -replace '\.psm1$', '.psd1')' `$sleepInterval = [Timespan]'$interval' `$lastSensorCheck = [DateTime]::UTCNow do { "@) + { Register-EngineEvent -Forward -SourceIdentifier Hue.Sensor.Changed foreach ($sensor in @(Get-HueSensor)) { if (($sensor.State.lastUpdated -eq 'none') -or ( $sensor.State.lastUpdated -lt $LastSensorCheck )) { continue } New-Event -SourceIdentifier "Hue.Sensor.Changed" -MessageData $sensor $eventName = "$($sensor.Name -replace '\s').Changed" Register-EngineEvent -Forward -SourceIdentifier $eventName New-Event -SourceIdentifier $eventName -MessageData $sensor } $LastSensorCheck = [datetime]::UtcNow Start-Sleep -Milliseconds $sleepInterval.TotalMilliseconds } + " } while (`$true)") #endregion Define Background Job #region Launch Job $jobExists = Get-Job | Where-Object Name -EQ Watch-HueSensor if ($jobExists -and $jobExists.Interval -gt $Interval) { $jobExists | Remove-Job -Force } Start-Job -ScriptBlock $watchJob -Name 'Watch-HueSensor' | Add-Member NoteProperty Interval $Interval -Force -PassThru #endregion Launch Job } } |