Start/stop VM using azure automation

azurevm.ps1

param (
	[string] $action,
	[string] $resourcegroup,
	[string] $vmname
)

function Send-Push{
    param(
        [string] $action,
        [string] $vmname,
        [string] $message
    )

    $uri = 'https://api.pushover.net/1/messages.json'
        $parameters = @{
            token = "yourapptoken"
            user = "yourusertoken"
            message = $message
            title = "$vmname - $action"
        }
        $parameters | Invoke-RestMethod -Uri $uri -Method Post
    }
$creds = Get-AutomationPSCredential -Name 'automation-creds'
Add-AzureRmAccount -Credential $creds
if ($action -eq "stop") {
	"Stopping VM $vmname in resource group $resourcegroup..."
	Stop-AzureRmVM  -ResourceGroupName $resourcegroup -Name $vmname -force
	
	Send-Push "Stopped"  $vmname  "completed successfully"	
} else  {
	$weekday = (Get-Date).DayOfWeek
	if ( $weekday -eq 'Saturday' -or $weekday -eq 'Sunday' ) {
		Send-Push "" $vmname "It's a weekend - skipping starting VM"
		return
	}
	"Starting VM $vmname in resource group $resourcegroup..."
	Start-AzureRmVM  -ResourceGroupName $resourcegroup -Name $vmname
	
	Send-Push $action $vmname "VM started"
}