ServerOpsMenu

0.1.0

Public/Invoke-Menu.ps1

Function Invoke-Menu {
    <#
        .SYNOPSIS
             
 
        .DESCRIPTION
              
 
        .PARAMETER Name
             
         
        .EXAMPLE
             
         
        .EXAMPLE
         
        .VERSION
            0.1.0
             
    #>

    [cmdletbinding()]
        Param (
            [Parameter(
            Mandatory=$false,
            Position=0)]
            [string[]]
            $ComputerName,

            [Parameter(
            Mandatory=$false,
            Position=1)]
            [PsCredential]
            [System.Management.Automation.CredentialAttribute()]
            $Credential,

            [Parameter(
            Mandatory=$false,
            Position=2)]
            [ValidateScript({
            if (Test-Path $_) {$True}
            else {Throw "Cannot validate path $_"}
            })]
            [string]
            $Path = 'ServerOpsMenu.xml'
        )

    Begin {

        if ($ComputerName) {

# Build Hash to be used for passing parameters to New-PSSession commandlet
        
            $PSSessionParams = @{
                ComputerName = $ComputerName
                ErrorAction = 'Stop'
            }

# Add optional parameters to hash

            if ($Credential) {
                $PSSessionParams.Add('Credential', $Credential)
            }
            
# Create remote powershell session
            
            try {
                $RemoteSession = New-PSSession @PSSessionParams
            }
            catch {
                $Message = (Get-Date -Format HH:mm:ss).ToString()+" : Unable to initiate remote session with client ComputerName ; $_"
                Write-Verbose $Message
                break
            }
            Get-MOTD @PSSessionParams
        }
        else {
            Get-MOTD
        }

        $ImportedMenu = Import-Clixml -Path $Path
        
#verify there are title and item properties
        
        if ($ImportedMenu.Title -AND $ImportedMenu.Items) {
        
            $HereMenu = @"
 
$($ImportedMenu.title)
 
"@
        }
    }

    Process {
        foreach ($Item in $ImportedMenu.Items) {
            $HereMenu+= "{0} - {1}`n" -f $Item.ItemNumber,$Item.MenuItem
        }
        
        $HereMenu += "Enter a menu number or Q to quit"
        
#Keep looping and running the menu until the user selects Q (or q).

        $Running = $True
        
        Do {
            #cls
            $Selection = Read-Host $HereMenu
            if ($Selection -match "^q" -OR $Selection.length -eq 0) {

#quit the menu
                $Running = $False
                Write-Host "Exiting the menu. Have a nice day" -ForegroundColor green
#bail out
                Return
            }
            elseif (-Not ([int]$Selection -ge 1 -AND [int]$Selection -le $($ImportedMenu.Items.count)) ) {
                
                Write-Warning "Enter a menu choice between 1 and $($ImportedMenu.Items.count) or Q to quit"
            }
            else {

#create a scriptblock

        $ScriptBlock = [scriptblock]::Create($ImportedMenu.Items[$Selection -1].action)

# Build Hash to be used for passing parameters to Invoke-Command commandlet
            
        $CommandParams = @{
            ScriptBlock = $ScriptBlock
            ErrorAction = 'Stop'
        }
    
# Add optional parameters to hash
    
        if ($RemoteSession) {
            $CommandParams.Add('Session', $RemoteSession)
        }

        Invoke-Command @CommandParams | Out-Host

#pause

                #$Nothing = Read-Host "Press any key to continue"
            }
        }

        While ($Running)
        
        else {
            Write-Warning "$Path does not appear to have menu information"
        }
    }

    End {}
}