michaelschiemer/tests/debug/compare-svg-with-matrix.php

<?php

declare(strict_types=1);

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

use App\Framework\QrCode\QrCodeGenerator;
use App\Framework\QrCode\QrCodeRenderer;
use App\Framework\QrCode\ValueObjects\ErrorCorrectionLevel;
use App\Framework\QrCode\ValueObjects\QrCodeConfig;
use App\Framework\QrCode\ValueObjects\QrCodeVersion;
use App\Framework\QrCode\ValueObjects\EncodingMode;
use App\Framework\QrCode\ValueObjects\QrCodeStyle;

echo "=== Compare SVG with Matrix ===\n\n";

$testData = 'HELLO WORLD';
$config = new QrCodeConfig(
    version: QrCodeVersion::fromNumber(1),
    errorCorrectionLevel: ErrorCorrectionLevel::M,
    encodingMode: EncodingMode::BYTE
);

$matrix = QrCodeGenerator::generate($testData, $config);

// Generate SVG with same parameters as the user's SVG
// User's SVG: 580x580px, 20px modules, 4 module quiet zone
$style = new QrCodeStyle(
    moduleSize: 20,
    quietZoneSize: 4,
    includeQuietZone: true
);

$renderer = new QrCodeRenderer();
$svg = $renderer->renderSvg($matrix, $style);

echo "Generated SVG:\n";
echo "  Size: " . strlen($svg) . " bytes\n";

// Extract dimensions
preg_match('/width="([0-9.]+)"\s+height="([0-9.]+)"/', $svg, $dimMatches);
if (!empty($dimMatches)) {
    echo "  Dimensions: {$dimMatches[1]}x{$dimMatches[2]}px\n";
}

// Extract all rectangles
preg_match_all('/x="([0-9.]+)"\s+y="([0-9.]+)"\s+width="([0-9.]+)"\s+height="([0-9.]+)"\s+fill="([^"]+)"/', $svg, $rectMatches);

if (!empty($rectMatches[1])) {
    $rectCount = count($rectMatches[1]);
    echo "  Rectangles: {$rectCount}\n";
    
    // Check first rectangle
    $firstX = (float)$rectMatches[1][0];
    $firstY = (float)$rectMatches[2][0];
    $firstW = (float)$rectMatches[3][0];
    $firstH = (float)$rectMatches[4][0];
    $firstFill = $rectMatches[5][0];
    
    echo "  First rectangle: x={$firstX}, y={$firstY}, w={$firstW}, h={$firstH}, fill={$firstFill}\n";
    
    // Expected first position (quiet zone offset)
    $expectedOffset = 4 * 20; // 4 modules * 20px
    echo "  Expected offset: {$expectedOffset}px\n";
    
    if (abs($firstX - $expectedOffset) < 1 && abs($firstY - $expectedOffset) < 1) {
        echo "  ✅ Position correct\n";
    } else {
        echo "  ❌ Position incorrect!\n";
    }
    
    if (abs($firstW - 20) < 1 && abs($firstH - 20) < 1) {
        echo "  ✅ Size correct (20px)\n";
    } else {
        echo "  ❌ Size incorrect!\n";
    }
    
    // Count unique positions
    $positions = [];
    for ($i = 0; $i < $rectCount; $i++) {
        $x = (float)$rectMatches[1][$i];
        $y = (float)$rectMatches[2][$i];
        $positions[] = "{$x},{$y}";
    }
    
    $uniquePositions = count(array_unique($positions));
    echo "  Unique positions: {$uniquePositions}\n";
    
    if ($uniquePositions === $rectCount) {
        echo "  ✅ No overlapping rectangles\n";
    } else {
        echo "  ❌ Overlapping rectangles detected!\n";
    }
}

// Check colors
$blackCount = substr_count($svg, 'fill="black"') + substr_count($svg, 'fill="#000000"') + substr_count($svg, 'fill="#000"');
$whiteCount = substr_count($svg, 'fill="white"') + substr_count($svg, 'fill="#FFFFFF"') + substr_count($svg, 'fill="#ffffff"');

echo "\nColors:\n";
echo "  Black fills: {$blackCount}\n";
echo "  White fills: {$whiteCount}\n";

// Verify matrix -> SVG mapping
echo "\n=== Matrix to SVG Verification ===\n";
$matrixSize = $matrix->getSize();
$darkInMatrix = 0;

for ($row = 0; $row < $matrixSize; $row++) {
    for ($col = 0; $col < $matrixSize; $col++) {
        if ($matrix->getModuleAt($row, $col)->isDark()) {
            $darkInMatrix++;
        }
    }
}

echo "Dark modules in matrix: {$darkInMatrix}\n";
echo "Black rectangles in SVG: {$blackCount}\n";

if ($darkInMatrix === $blackCount) {
    echo "✅ Count matches!\n";
} else {
    echo "❌ Count mismatch!\n";
    echo "This indicates a rendering problem.\n";
}

// Save for comparison
$outputPath = __DIR__ . '/test-qrcodes/comparison.svg';
file_put_contents($outputPath, $svg);
echo "\n✅ Saved comparison SVG: {$outputPath}\n";

// Generate a simple test to verify SVG rendering
echo "\n=== SVG Rendering Test ===\n";
echo "Open the SVG in a browser and check:\n";
echo "1. All modules are square\n";
echo "2. No gaps between modules\n";
echo "3. Quiet zone is white\n";
echo "4. QR code is clearly visible\n";
echo "5. Try scanning with phone camera\n";