Get-GroupCharCount.ps1

Param(
  	[string] $filePath,
	[string] $thresold
)

if (-not ([System.IO.File]::Exists($filePath))) {
	throw [System.IO.FileNotFoundException] "File not found."   
}

Write-Host "Characters counter" -ForegroundColor Cyan
Write-Host "Google groups compliance checker" -ForegroundColor Cyan

$longestValue    = 0
$allValues       = 0
$notCompliant    = 0
$defaultThresold = 33

if (($null -eq $thresold) -or (-not ($thresold -match "^[\d\.]+$")) -or ($thresold -lt 0)) {
	# Default value, assuming 60 chars limit on Google and 27 max chars for the other fields (abbv)
    	Write-Host "Using the default value for the threshold:" $defaultThresold -ForegroundColor Yellow 
    	$thresold = $defaultThresold
}

$lines = Get-Content $filePath | Where {$_ -notmatch '^\s+$'}
foreach ($line in $lines) {
	$allValues++
	if ($line.length -gt $thresold) {
		$notCompliant++
	}
	if ($longestValue -lt $line.length) {
		$longestValue = $line.length 
	}
}

Write-Host "- Values:" $allValues
Write-Host "- Longest value:" $longestValue "chars"
Write-Host "- Values not compliant [threshold=" $thresold"]:" $notCompliant

if ($notCompliant -lt 0) {
    Write-Error "Error!"
}
elseif ($notCompliant -eq 0) {
    Write-Host "Values compliant with the Google solution." -ForegroundColor White -BackgroundColor Green
}
else {
    Write-Host "Values not compliant with the Google solution" -ForegroundColor White -BackgroundColor Red
}