# FTP/FTPS PDF Uploader
# Place this script and ftp-config.ini in the same folder as your PDFs.
# Run via upload.bat (double-click).

$scriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
$configFile = Join-Path $scriptDir "ftp-config.ini"

if (-not (Test-Path $configFile)) {
    Write-Host "ERROR: ftp-config.ini not found." -ForegroundColor Red
    Write-Host "Create ftp-config.ini in the same folder as this script." -ForegroundColor Red
    exit 1
}

# Parse config
$config = @{}
foreach ($line in Get-Content $configFile) {
    if ($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 "ERROR: ftp-config.ini is missing required fields (host, username, password)." -ForegroundColor Red
    exit 1
}

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

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

if ($pdfs.Count -eq 0) {
    Write-Host "No PDF files found in this folder." -ForegroundColor Yellow
    exit 0
}

$protocol = if ($useTls) { "ftps" } else { "ftp" }
Write-Host ""
Write-Host "Uploading $($pdfs.Count) PDF(s) to $protocol://$ftpHost$remotePath" -ForegroundColor Cyan
Write-Host ""

$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++
    }
}

Write-Host ""
if ($fail -eq 0) {
    Write-Host "Done: $ok file(s) uploaded and archived." -ForegroundColor Green
} else {
    Write-Host "Done: $ok uploaded, $fail failed (left in place for retry)." -ForegroundColor Yellow
}