<?php
require_once 'includes/functions.php';

$unique_id = $_GET['id'] ?? '';
$format = $_GET['format'] ?? 'pdf';

if (empty($unique_id)) {
    header('Location: view_members.php');
    exit;
}

$query = "SELECT * FROM traders WHERE unique_id = ?";
$stmt = $conn->prepare($query);
$stmt->bind_param("s", $unique_id);
$stmt->execute();
$result = $stmt->get_result();
$trader = $result->fetch_assoc();

if (!$trader) {
    header('Location: view_members.php');
    exit;
}

switch ($format) {
    case 'pdf':
        // Generate and download PDF
        $pdf = generateIDCardPDF($trader);
        $pdf->Output('ID_CARD_' . $trader['unique_id'] . '.pdf', 'D');
        break;
        
    case 'image':
        // Download the passport photo
        $file = UPLOAD_PATH . $trader['photo_path'];
        if (file_exists($file)) {
            header('Content-Type: image/png');
            header('Content-Disposition: attachment; filename="PASSPORT_' . $trader['unique_id'] . '.png"');
            readfile($file);
        }
        break;
        
    case 'card':
    default:
        // Generate and download the ID card image
        $id_card_path = UPLOAD_PATH . 'id_cards/' . $trader['unique_id'] . '.png';
        
        // Generate if doesn't exist
        if (!file_exists($id_card_path)) {
            generateIDCard($trader);
        }
        
        if (file_exists($id_card_path)) {
            header('Content-Type: image/png');
            header('Content-Disposition: attachment; filename="ID_CARD_' . $trader['unique_id'] . '.png"');
            readfile($id_card_path);
        }
        break;
}
?>