$ErrorActionPreference = "Stop"
$target = "C:\cryptosample"
Write-Host "Generating default EFS sample files" -ForegroundColor Cyan
Write-Host "Target folder: $target"
New-Item -ItemType Directory -Force -Path $target | Out-Null
New-Item -ItemType Directory -Force -Path (Join-Path $target "docs") | Out-Null
New-Item -ItemType Directory -Force -Path (Join-Path $target "nested\level1") | Out-Null
New-Item -ItemType Directory -Force -Path (Join-Path $target "binary") | Out-Null
$stamp = Get-Date -Format "yyyy-MM-dd HH:mm:ss K"
Set-Content -Path (Join-Path $target "readme-sample.txt") -Value @(
  "EFS sample file set",
  "Generated: $stamp",
  "Computer: $env:COMPUTERNAME",
  "User: $env:USERNAME",
  "Purpose: controlled EFS validation under C:\cryptosample only"
) -Encoding UTF8
Set-Content -Path (Join-Path $target "docs\sample-notes.txt") -Value @(
  "This is a disposable plaintext document.",
  "After the EFS tool runs, cipher /C should show this file as encrypted."
) -Encoding UTF8
Set-Content -Path (Join-Path $target "nested\level1\nested-file.txt") -Value "Nested disposable EFS validation file generated at $stamp" -Encoding UTF8
Set-Content -Path (Join-Path $target "csv-sample.csv") -Value @(
  "id,name,purpose",
  "1,alpha,EFS validation",
  "2,beta,backup validation",
  "3,gamma,recovery validation"
) -Encoding UTF8
$bytes = New-Object byte[] 4096
[System.Security.Cryptography.RandomNumberGenerator]::Fill($bytes)
[System.IO.File]::WriteAllBytes((Join-Path $target "binary\random-4kb.bin"), $bytes)
Write-Host "Done. Created disposable sample files under $target" -ForegroundColor Green
Write-Host "Next: run the EFS controlled runner from the Railway /download page."