Power Shell script for updating Openhab, or Home Assistant via rest api. Uses a settings.json config to detect teams in a call or not

video-call-updater.ps1

$SettingsObject = Get-Content -Path settings.json | ConvertFrom-Json
Write-Output "Start up"
Write-Output $SettingsObject

function Update-OpenHAB {
    param([string]$item, [bool]$state)

    $headers = New-Object "System.Collections.Generic.Dictionary[[String],[String]]"
    #$headers.Add("Authorization", "Bearer " + $SettingsObject.openhabtoken)
    $headers.Add("Content-Type", "text/plain")

    $body = If ($state -eq $True) { "ON" } Else { "OFF" }

	#$url = $SettingsObject.openhabbasepath + $item + '/state'
	$url = $SettingsObject.openhabbasepath + $item 
	#Write-Output $url
    Invoke-RestMethod $url -Method 'POST' -Headers $headers -Body $body
}

function Update-HomeAssistant{
    param([string]$item, [bool]$state)

    $headers = @{
		'Authorization' = 'Bearer ' + $SettingsObject.homeassistanttoken
		'Content-Type' = 'application/json'
	}
    

    $body = '{"entity_id": "' +  $item + '"}'
	
	if  ($state -eq $True)
	{ 
		$url = $SettingsObject.homeassistantpath + "light/turn_on"
	}
	else
	{
		$url = $SettingsObject.homeassistantpath + "light/turn_off"
	}
	#Write-Output $url
    Invoke-RestMethod $url -Method 'POST' -Headers $headers -Body $body  
}

function Check-Process {
	param([string]$processname, [string]$openhabitem, [int]$offcallcount = 0)
	
	$global:changeState =0
	$process = Get-Process $processname -EA 0
	if($process) {
		$processCount = (Get-NetUDPEndpoint -OwningProcess ($process).Id -EA 0|Measure-Object).count
		Write-Output "Checking process count for $process at $processCount is greater than $offcallcount"
		if ($processCount -ge $offcallcount) {
			Write-Output "Setting $openhabitem ON for ($process=($offcallcount) = $processCount)"
			#Update-OpenHAB -item $openhabitem -state $True
			Update-HomeAssistant -item $openhabitem -state $True
			$global:changeState = 1
		} else {    
			#Update-OpenHAB -item $openhabitem -state $False
			Update-HomeAssistant -item $openhabitem -state $False
			Write-Output "Setting $openhabitem OFF for ($process=($offcallcount) = $processCount)"
			$global:changeState = 0
		}
	} else {		
		#Update-OpenHAB -item $openhabitem -state $False
		Update-HomeAssistant -item $openhabitem -state $False
		$global:changeState = 0
	}
	
	Remove-Variable process
}

While($True) {
	$d = (get-date).ToString('T')
	Write-Output "Check @ $d"
	$changeState = 0
	Foreach ($process in $SettingsObject.processes) {
		#Write-Output "==== Checking $process"
		#Check-Process -processname $process.processname -openhabitem $process.homeassistantitem -offcallcount $process.nocallprocesscount
		Check-Process -processname $process.processname -openhabitem $process.homeassistantitem -offcallcount $process.nocallprocesscount
		#Write-Output "==== Process $outProcess"
		#Write-Output "--- $global:changeState"
		if ($global:changeState.Equals(1)) {
			Write-Output "Breaking out of loop as process is active $process.processname"
			break
		} 
		else {
			Write-Output("Continue loop")
		}

	}
	
	Start-Sleep -Seconds 30
	
}

Settings.json

{
	"openhabbasepath" : "<openhab url>:8080/rest/items/",
	"openhabtoken" : "",
	"homeassistantpath": "<homeassistant url>/api/services/",
	"homeassistanttoken": "<home assistant long lived token",
	"processes" : [
		{
			"processname" : "Teams",
			"openhabitem" : "<openhab item name to control>",
			"homeassistantitem" : "<home assistant entity id>",
			"nocallprocesscount" : 9
        },
        {
			"processname" : "Lync",
			"openhabitem" : "<openhab item name to control>",
			"homeassistantitem" : "<home assistant entity id>",
			"nocallprocesscount" : 2
		}
        
	]
}

For "new" teams. Update the settings.json and add the new teams process details:

{
	"processname" : "ms-teams",
	"openhabitem" : "<openhab item name to control>",
	"homeassistantitem" : "<home assistant entity id>",
	"nocallprocesscount" : 9
},