# Run FTP upload for every practice folder found under this root.
# Searches recursively for ftp-config.ini and uploads PDFs from each folder.

$rootDir = Split-Path -Parent $MyInvocation.MyCommand.Path
$configs = Get-ChildItem -Path $rootDir -Recurse -Filter "ftp-config.ini"

if ($configs.Count -eq 0) {
    Write-Host "No ftp-config.ini files found under $rootDir" -ForegroundColor Yellow
    exit 0
}

Write-Host ""
Write-Host "Found $($configs.Count) practice folder(s)" -ForegroundColor Cyan
Write-Host ("=" * 50)

$totalOk   = 0
$totalFail = 0
$totalSkip = 0

foreach ($configFile in $configs) {
    $folderDir  = $configFile.DirectoryName
    $folderName = Split-Path -Leaf $folderDir

    Write-Host ""
    Write-Host "[ $folderName ]" -ForegroundColor Cyan

    # Parse config
    $config = @{}
    foreach ($line in Get-Content $configFile.FullName) {
        if ($line -match '^\s*([^=;#\s]+)\s*=\s*(.+?)\s*$') {
            $config[$matches[1]] = $matches[2]
        }
    }

    $ftpHost    = $config["host"]
    $ftpPort    = if ($config["port"]) { [int]$config["port"] } else { 21 }
    $username   = $config["username"]
    $password   = $config["password"]
    $remotePath = if ($config["remote_path"]) { $config["remote_path"].TrimEnd("/") } else { "/" }
    $useTls     = $config["tls"] -eq "true"

    if (-not $ftpHost -or -not $username -or -not $password) {
        Write-Host "  SKIPPED: ftp-config.ini missing required fields (host, username, password)" -ForegroundColor Yellow
        $totalSkip++
        continue
    }

    $archiveDir = Join-Path $folderDir "archive"
    if (-not (Test-Path $archiveDir)) {
        New-Item -ItemType Directory -Path $archiveDir | Out-Null
    }

    $pdfs = Get-ChildItem -Path $folderDir -Filter "*.pdf" -File

    if ($pdfs.Count -eq 0) {
        Write-Host "  No PDFs to upload." -ForegroundColor Gray
        $totalSkip++
        continue
    }

    $ok   = 0
    $fail = 0

    foreach ($pdf in $pdfs) {
        $remoteFile = "$remotePath/$($pdf.Name)"
        $uri        = "ftp://${ftpHost}:${ftpPort}${remoteFile}"

        Write-Host "  $($pdf.Name) ..." -NoNewline

        try {
            $req               = [System.Net.FtpWebRequest]::Create($uri)
            $req.Method        = [System.Net.WebRequestMethods+Ftp]::UploadFile
            $req.Credentials   = New-Object System.Net.NetworkCredential($username, $password)
            $req.EnableSsl     = $useTls
            $req.UseBinary     = $true
            $req.UsePassive    = $true
            $req.KeepAlive     = $false

            $bytes             = [System.IO.File]::ReadAllBytes($pdf.FullName)
            $req.ContentLength = $bytes.Length
            $stream            = $req.GetRequestStream()
            $stream.Write($bytes, 0, $bytes.Length)
            $stream.Close()

            $resp = $req.GetResponse()
            $resp.Close()

            Move-Item -Path $pdf.FullName -Destination (Join-Path $archiveDir $pdf.Name) -Force
            Write-Host " uploaded" -ForegroundColor Green
            $ok++
        }
        catch {
            Write-Host " FAILED: $($_.Exception.Message)" -ForegroundColor Red
            $fail++
        }
    }

    $totalOk   += $ok
    $totalFail += $fail

    if ($fail -eq 0) {
        Write-Host "  $ok file(s) uploaded." -ForegroundColor Green
    } else {
        Write-Host "  $ok uploaded, $fail failed." -ForegroundColor Yellow
    }
}

Write-Host ""
Write-Host ("=" * 50)
if ($totalFail -eq 0) {
    Write-Host "All done: $totalOk file(s) uploaded across $($configs.Count) folder(s)." -ForegroundColor Green
} else {
    Write-Host "Done: $totalOk uploaded, $totalFail failed, $totalSkip skipped." -ForegroundColor Yellow
}