<?php

declare(strict_types=1);

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

use App\Framework\QrCode\Structure\FinderPattern;
use App\Framework\QrCode\ValueObjects\QrCodeMatrix;
use App\Framework\QrCode\ValueObjects\QrCodeVersion;

echo "=== Finder Pattern Logic Test ===\n\n";

// Expected finder pattern (7x7)
$expectedPattern = [
    [1,1,1,1,1,1,1],  // Row 0: all dark
    [1,0,0,0,0,0,1],  // Row 1: dark, light, light, light, light, light, dark
    [1,0,1,1,1,0,1],  // Row 2: dark, light, dark, dark, dark, light, dark
    [1,0,1,1,1,0,1],  // Row 3: dark, light, dark, dark, dark, light, dark
    [1,0,1,1,1,0,1],  // Row 4: dark, light, dark, dark, dark, light, dark
    [1,0,0,0,0,0,1],  // Row 5: dark, light, light, light, light, light, dark
    [1,1,1,1,1,1,1],  // Row 6: all dark
];

echo "Expected Finder Pattern:\n";
foreach ($expectedPattern as $r => $row) {
    echo "  Row {$r}: " . implode('', $row) . "\n";
}
echo "\n";

// Create matrix and apply finder pattern
$matrix = QrCodeMatrix::create(QrCodeVersion::fromNumber(1));
$matrix = FinderPattern::apply($matrix);

// Test top-left finder pattern
echo "Actual Top-Left Finder Pattern:\n";
$errors = 0;
for ($r = 0; $r < 7; $r++) {
    $bits = '';
    for ($c = 0; $c < 7; $c++) {
        $isDark = $matrix->getModuleAt($r, $c)->isDark();
        $bit = $isDark ? '1' : '0';
        $bits .= $bit;
        
        if ($bit !== (string)$expectedPattern[$r][$c]) {
            $errors++;
        }
    }
    echo "  Row {$r}: {$bits}";
    
    if ($bits === implode('', $expectedPattern[$r])) {
        echo " ✅\n";
    } else {
        echo " ❌ (expected: " . implode('', $expectedPattern[$r]) . ")\n";
        
        // Show differences
        for ($c = 0; $c < 7; $c++) {
            $actual = $bits[$c];
            $expected = (string)$expectedPattern[$r][$c];
            if ($actual !== $expected) {
                echo "    Column {$c}: got {$actual}, expected {$expected}\n";
            }
        }
    }
}

echo "\nTotal errors: {$errors}\n\n";

// Test the logic manually
echo "=== Manual Logic Test ===\n";
echo "For position (r=2, c=3):\n";
$r = 2;
$c = 3;
echo "  r = {$r}, c = {$c}\n";
echo "  Outer ring? (r==0 || r==6 || c==0 || c==6): " . (($r === 0 || $r === 6 || $c === 0 || $c === 6) ? "YES" : "NO") . "\n";
echo "  White ring? (r==1 || r==5 || c==1 || c==5): " . (($r === 1 || $r === 5 || $c === 1 || $c === 5) ? "YES" : "NO") . "\n";
echo "  Expected: DARK (inner 3x3)\n";
echo "  Actual: " . ($matrix->getModuleAt($r, $c)->isDark() ? "DARK" : "LIGHT") . "\n";

if (!$matrix->getModuleAt($r, $c)->isDark()) {
    echo "\n❌ PROBLEM FOUND: Position (2,3) should be DARK but is LIGHT!\n";
    echo "This means the white ring condition is matching incorrectly.\n";
}