<?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;

echo "=== SVG Rendering Comparison ===\n\n";

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

$matrix = QrCodeGenerator::generate('HELLO WORLD', $config);
$renderer = new QrCodeRenderer();
$svg = $renderer->renderSvg($matrix);

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

// Check SVG structure
if (preg_match('/width="(\d+)" height="(\d+)"/', $svg, $sizeMatches)) {
    echo "  Canvas size: {$sizeMatches[1]}x{$sizeMatches[2]}\n";
}

// Check module size
if (preg_match('/width="(\d+\.?\d*)" height="(\d+\.?\d*)" fill="black"/', $svg, $moduleMatches)) {
    echo "  Module size: {$moduleMatches[1]}x{$moduleMatches[2]}\n";
}

// Count rectangles
$rectCount = substr_count($svg, '<rect');
echo "  Rectangles: {$rectCount}\n\n";

// Check first few rectangles to see coordinates
echo "First 10 rectangles:\n";
preg_match_all('/<rect x="(\d+\.?\d*)" y="(\d+\.?\d*)" width="(\d+\.?\d*)" height="(\d+\.?\d*)" fill="(black|white)"/', $svg, $matches, PREG_SET_ORDER);

for ($i = 0; $i < min(10, count($matches)); $i++) {
    $m = $matches[$i];
    echo "  Rect {$i}: x={$m[1]}, y={$m[2]}, w={$m[3]}, h={$m[4]}, color={$m[5]}\n";
}

echo "\n";

// Check if coordinates match expected pattern
// For Version 1, module size should be consistent
// Quiet zone should be present

// Find quiet zone (first white rectangle)
$firstWhite = null;
foreach ($matches as $m) {
    if ($m[5] === 'white') {
        $firstWhite = $m;
        break;
    }
}

if ($firstWhite) {
    echo "Quiet zone (first white rect):\n";
    echo "  Position: ({$firstWhite[1]}, {$firstWhite[2]})\n";
    echo "  Size: {$firstWhite[3]}x{$firstWhite[4]}\n";
    
    if ($firstWhite[1] == 0 && $firstWhite[2] == 0) {
        echo "  ✅ Quiet zone starts at (0,0)\n";
    } else {
        echo "  ⚠️ Quiet zone doesn't start at (0,0)\n";
    }
}

// Check top-left finder pattern in SVG
// Top-left finder should be at module position (0,0) which should be at SVG coordinates
// depending on quiet zone and module size
echo "\n=== Top-Left Finder Pattern in SVG ===\n";
$finderRects = [];
foreach ($matches as $m) {
    if ($m[5] === 'black') {
        // Check if this might be part of top-left finder (first few modules)
        $x = (float)$m[1];
        $y = (float)$m[2];
        if ($x < 200 && $y < 200) { // Rough estimate
            $finderRects[] = $m;
        }
    }
}

echo "Found " . count($finderRects) . " black rectangles in top-left area\n";

// Sort by y then x
usort($finderRects, function($a, $b) {
    $y1 = (float)$a[2];
    $y2 = (float)$b[2];
    if (abs($y1 - $y2) < 0.01) {
        return (float)$a[1] <=> (float)$b[1];
    }
    return $y1 <=> $y2;
});

echo "First 7 rectangles (first row of finder pattern):\n";
for ($i = 0; $i < min(7, count($finderRects)); $i++) {
    $m = $finderRects[$i];
    echo "  x={$m[1]}, y={$m[2]}\n";
}

// Check if module size is consistent
$moduleSizes = [];
foreach ($matches as $m) {
    $w = (float)$m[3];
    $h = (float)$m[4];
    $key = "{$w}x{$h}";
    $moduleSizes[$key] = ($moduleSizes[$key] ?? 0) + 1;
}

echo "\nModule size distribution:\n";
foreach ($moduleSizes as $size => $count) {
    echo "  {$size}: {$count} rectangles\n";
}

if (count($moduleSizes) === 1) {
    echo "✅ All modules have same size\n";
} else {
    echo "❌ Modules have different sizes!\n";
}