<?php
// tools/generer_code.php — compatible endroid/qr-code v4 et v5
declare(strict_types=1);

require __DIR__ . '/../vendor/autoload.php';

use Endroid\QrCode\QrCode;
use Endroid\QrCode\Writer\PngWriter;
use Endroid\QrCode\Writer\SvgWriter;

$url       = 'https://uslugi.fr';
$pngSize   = 1600; // px
$margin    = 20;   // px
$publicDir = __DIR__ . '/../public/uploads/img';
$basename  = 'qr_uslugi';

if (!filter_var($url, FILTER_VALIDATE_URL)) {
    http_response_code(400);
    exit("❌ URL invalide\n");
}
if (!is_dir($publicDir) && !mkdir($publicDir, 0775, true)) {
    http_response_code(500);
    exit("❌ Impossible de créer le dossier: {$publicDir}\n");
}

// Instanciation commune
$qr = new QrCode($url);

// ---------- Compatibilité v4 / v5 ----------
/**
 * v5.x :
 *   - Encoding via new Encoding('UTF-8')
 *   - ECC via new ErrorCorrectionLevelHigh()
 *   - RoundBlockSizeMode via new RoundBlockSizeModeMargin()
 *
 * v4.x :
 *   - Encoding via string 'UTF-8'
 *   - ECC via new ErrorCorrectionLevel(ErrorCorrectionLevel::HIGH)
 *   - Pas de RoundBlockSizeModeMargin (on ignore)
 */
$qr->setSize($pngSize);
$qr->setMargin($margin);

// Encoding
if (class_exists(\Endroid\QrCode\Encoding\Encoding::class)) {
    // v5
    $qr->setEncoding(new \Endroid\QrCode\Encoding\Encoding('UTF-8'));
} else {
    // v4
    if (method_exists($qr, 'setEncoding')) {
        $qr->setEncoding('UTF-8');
    }
}

// Error correction
if (class_exists(\Endroid\QrCode\ErrorCorrectionLevel\ErrorCorrectionLevelHigh::class)) {
    // v5
    $qr->setErrorCorrectionLevel(new \Endroid\QrCode\ErrorCorrectionLevel\ErrorCorrectionLevelHigh());
} elseif (class_exists(\Endroid\QrCode\ErrorCorrectionLevel\ErrorCorrectionLevel::class)) {
    // v4
    $qr->setErrorCorrectionLevel(
        new \Endroid\QrCode\ErrorCorrectionLevel\ErrorCorrectionLevel(
            \Endroid\QrCode\ErrorCorrectionLevel\ErrorCorrectionLevel::HIGH
        )
    );
}

// Round blocks (v5 uniquement)
if (
    method_exists($qr, 'setRoundBlockSizeMode') &&
    class_exists(\Endroid\QrCode\RoundBlockSizeMode\RoundBlockSizeModeMargin::class)
) {
    $qr->setRoundBlockSizeMode(new \Endroid\QrCode\RoundBlockSizeMode\RoundBlockSizeModeMargin());
}

// Écriture PNG / SVG
$pngWriter = new PngWriter();
$svgWriter = new SvgWriter();
$png = $pngWriter->write($qr);
$svg = $svgWriter->write($qr);

// Sauvegarde
$pngPath = $publicDir . '/' . $basename . '.png';
$svgPath = $publicDir . '/' . $basename . '.svg';
$png->saveToFile($pngPath);
$svg->saveToFile($svgPath);

echo "✅ QR codes générés :\n";
echo "PNG : " . realpath($pngPath) . "\n";
echo "SVG : " . realpath($svgPath) . "\n";