# Report-FileStats.ps1
#
# report Filestatistics like Name, Path, size, age lastmodified
#
# Performance Win7 local SSD  115403 Files in 45 Sec = 16 MB CSV-File

param (
	[string]$basepath = "c:\share"
)

write-host "Report-FileStats: Start"
write-host "Report-FileStats: Parameter basepath :" $basepath
$now = (get-date)
write-host "Report-FileStats: Current DateTime   :" $reportcsv
[uint32]$count=0
get-childitem -path $basepath -recurse | % {
	#write-host " File:" $_.fullname " - " $_.$dateproperty -nonewline
	if (!$_.PSIsContainer) {
		$count++
		if ($count%1000 -eq 0) {
			write-host "Files:" $count
		}
		$result = $_ | select Name,Extension,Directory,Length,Sizegroup,LastWriteTimeUtc,Age,AgeGroup
		if ($_.Length -lt 1) {
			$result.Sizegroup = 0 
		}
		else {
			$result.Sizegroup = [int]([math]::log10($_.Length)+0.5)
		}
		$result.Age = ($now - ($_.lastwritetimeutc)).days
		if ($result.Age -lt 7) {
			$result.AgeGroup = "0"
		} 
		elseif ($result.Age -lt 30) {
			$result.AgeGroup = "1"
		} 
		elseif ($result.Age -lt 365) {
			$result.AgeGroup = "2"
		} 
		else {
			$result.AgeGroup = "3"
		} 
		$result
	}
	else {
		#write-host "Dir:" $_.fullname
	}
}
write-host "Total Files: $count"
write-host "Report-FileStats: End"