# Skript pro PowerShell, by ChatGPT

$RootPath        = "C:\"
$OutputCsv       = "C:\filehashes.csv"
$Algorithm       = "SHA256"
$SkipGreaterThan = 50MB   # bajty (např. 1 MB)

# hlavička CSV
"Path,Hash" | Out-File -FilePath $OutputCsv -Encoding UTF8

Get-ChildItem -Path $RootPath -Recurse -File -ErrorAction SilentlyContinue |
    Where-Object { $_.Length -le $SkipGreaterThan } |
    ForEach-Object {
        $hash = "N/A"
        try {
            $hash = (Get-FileHash -Path $_.FullName -Algorithm $Algorithm -ErrorAction Stop).Hash
        } catch {
            # zůstane N/A
        }

        $path = $_.FullName -replace '"','""'
        "`"$path`",$hash" | Add-Content -Path $OutputCsv -Encoding UTF8
    }