Ticket queue script

function Write-TicketCreation {
    param (
        [int]$StepNumber,
        [string]$Message
    )

    Write-Progress -Activity 'Ticket status' -Status $Message -PercentComplete (($StepNumber / 3) * 100)
}

$script:steps = ([System.Management.Automation.PsParser]::Tokenize((gc "$PSScriptRoot\$($MyInvocation.MyCommand.Name)"), [ref]$null) | where { $_.Type -eq 'Command' -and $_.Content -eq 'Write-TicketCreation' }).Count

function Write-Shutdown {
    param (
        [int]$StepNumber,
        [string]$Message
    )

    Write-Progress -Activity 'System shutdown' -Status $Message -PercentComplete (($StepNumber / 3) * 100)
}

$script:steps = ([System.Management.Automation.PsParser]::Tokenize((gc "$PSScriptRoot\$($MyInvocation.MyCommand.Name)"), [ref]$null) | where { $_.Type -eq 'Command' -and $_.Content -eq 'Write-Shutdown' }).Count

$Count = 1

Do {

    $stepCounter = 0
    Clear

    Write-Host ""
    Write-Host "Press [ENTER] to generate ticket"
    Write-Host ""
    Write-Host "Press [C] to close script"
    $Key = $Host.UI.RawUI.ReadKey()

    Switch ($Key.Character) {

        Default {

            Clear
            $Number = $Count.ToString("000")

            Write-TicketCreation -Message "Generating ticket: Your number is $Number" -StepNumber ($stepCounter++)
            Start-Sleep -Seconds 2

            $Date = (Get-Date).ToString("dd.MM.yyyy")
            $Time = (Get-Date).ToString("HH:mm:ss")

            New-Item -Path $PSScriptRoot -Name "Ticket-$Number.txt" -ItemType "File" | Out-Null

            Write-TicketCreation -Message "Printing ticket: $Date $Time $Number" -StepNumber ($stepCounter++)
            Start-Sleep -Seconds 2

            Add-Content -Path "$PSScriptRoot\Ticket-$Number.txt" -Value "YOUR TICKET:"
            Add-Content -Path "$PSScriptRoot\Ticket-$Number.txt" -Value ""
            Add-Content -Path "$PSScriptRoot\Ticket-$Number.txt" -Value "$Date"
            Add-Content -Path "$PSScriptRoot\Ticket-$Number.txt" -Value "$Time"
            Add-Content -Path "$PSScriptRoot\Ticket-$Number.txt" -Value ""
            Add-Content -Path "$PSScriptRoot\Ticket-$Number.txt" -Value "You are number: $Number in the queue.."
            Add-Content -Path "$PSScriptRoot\Ticket-$Number.txt" -Value ""
            Add-Content -Path "$PSScriptRoot\Ticket-$Number.txt" -Value "We appreciate your patience!"

            Start-Process -FilePath "$PSScriptRoot\Ticket-$Number.txt" -Verb Print -PassThru | % { Sleep 10; $_ } | Kill

            Write-TicketCreation -Message "Finishing up process! Deleting file: $PSScriptRoot\Ticket-$Number.txt" -StepNumber ($stepCounter++)
            Start-Sleep -Seconds 2

            Remove-Item "$PSScriptRoot\Ticket-$Number.txt" -Force

            Write-TicketCreation -Message "Ticket creation completed!" -StepNumber ($stepCounter++)
            Start-Sleep -Seconds 2
            Write-Progress -Activity 'Ticket status' -Status "Completed!" -Completed

            $Count++

        }

        C {

            Clear
            Write-Shutdown -Message "Shutting down" -StepNumber ($stepCounter++)
            Start-Sleep -Milliseconds 250
            Write-Shutdown -Message "Shutting down." -StepNumber ($stepCounter++)
            Start-Sleep -Milliseconds 250
            Write-Shutdown -Message "Shutting down.." -StepNumber ($stepCounter++)
            Start-Sleep -Milliseconds 250
            Write-Shutdown -Message "Shutting down..." -StepNumber ($stepCounter++)
            Start-Sleep -Milliseconds 250
            Write-Progress -Activity 'System shutdown' -Status "Shutting down..." -Completed
            Start-Sleep -Seconds 1
            Exit

        }

    }

} Until ($Key.Character -eq 'C')