_ps.ps1

Function SimpleContextMenu {
    param (
        [Parameter(Mandatory, Position = 0)]
        [System.Object]
        $List,
        [Parameter(Mandatory = $false, Position = 1)]
        [string]
        $Header = "Select"
    )

    if (@("OrderedDictionary", "Hashtable", "Object[]") -notcontains $List.GetType().Name) {
        Write-Host "Collection type not supported"
        return
    }

    $choices = @{}
    [Int32]$lastIndex = 0

    Write-Host $Header -ForegroundColor Blue

    if ($List.GetType().IsArray) {
        foreach ($item in $List) {
            $choices[++$lastIndex] = $item
            Write-Host "   $($lastIndex): $item"
        }
    }
    else {
        foreach ($item in $List.GetEnumerator()) {
            if ($item.Name.StartsWith("__")) {
                # Keys with this prefix are treated as information and are good for headers and separators
                Write-Host "$($item.Value)" -ForegroundColor Blue
            }
            else {
                $choices[++$lastIndex] = $item.Name
                Write-Host "   $($lastIndex): $($item.Value)"
            }
        }
    }

    [Int32]$choice = SimpleInputPrompt "Enter a number between [1, $lastIndex] to select command or <Enter> to ignore"

    if (($choice -gt 0) -and ($choice -le $lastIndex)) {
        return $choices[$choice]
    }
    else {
        return $null
    }
}

Function SimpleInputPrompt {
    param (
        [Parameter(Mandatory = $false, Position = 0)]
        [string]
        $Label = "Provide Input"
    )

    Write-Host ""
    Write-Host $Label -ForegroundColor Blue
    
    return Read-Host
}

Function IsPortListening {
    param (
        [Parameter(Mandatory = $true, Position = 0)]
        [int]
        $Port
    )

    $test = Test-NetConnection localhost -port $Port
    return $test.TcpTestSucceeded
}

Function KillProcessOnPort {
    param (
        [Parameter(Mandatory = $true, Position = 0)]
        [int]
        $Port
    )

    $foundProcesses = netstat -ano | findstr :$Port
    $activePortPattern = ":$Port\s.+LISTENING\s+\d+$"
    $pidNumberPattern = "\d+$"

    if ($foundProcesses | Select-String -Pattern $activePortPattern -Quiet) {
        $patternMatches = $foundProcesses | Select-String -Pattern $activePortPattern
        $firstMatch = $patternMatches.Matches.Get(0).Value

        $pidNumber = [regex]::match($firstMatch, $pidNumberPattern).Value

        taskkill /pid $pidNumber /f
    }
}