#Before running script execute this set-executionpolicy remotesigned

# Wzorzec nazwy katalogu np. 2019_03_02
$name_pattern = "yyyy_MM_dd"

# Katalog wejsciowy bez '\' na koncu
$source = "c:\Users\Domownik\Documents\ps1"

# Katalog wyjsciowy KONIECZNIE z '\' na koncu
$destination = "c:\Users\Domownik\Documents\ps1\"

$shell = New-Object -ComObject Shell.Application
$folder = $shell.namespace($source)

clear
Write-Host "Tworzenie katalogow i kopiowanie plików... To moze chwile zajac."

Get-ChildItem $source | ForEach-Object {
    $_.Name
    $item = $folder.Items().Item($_.Name).ExtendedProperty("System.Photo.DateTaken")
    $date = $_.LastWriteTime.ToString($name_pattern)

    if($_.FullName -match "img_\d+_"){
        $filename = $_.FullName -split '_'
        $date = [datetime]::ParseExact($filename[1], 'yyyyMMdd', $null).ToString($name_pattern)
    }

    if($item){
        $date = $item.ToString($name_pattern)
    }

    $path = $destination + $date

    if(!(Test-Path $path)){
        mkdir $path > $null
    }

    Copy-Item -Path $_.FullName -Destination $path
}
Write-Host "Gotowe."