<?php

declare(strict_types=1);

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

use App\Framework\QrCode\ErrorCorrection\ReedSolomonEncoder;
use App\Framework\QrCode\QrCodeGenerator;
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 "=== Reed-Solomon Error Correction Test ===\n\n";

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

// Manually encode data
$encoder = new \ReflectionClass(QrCodeGenerator::class);
$method = $encoder->getMethod('encodeData');
$method->setAccessible(true);

$tempGenerator = new QrCodeGenerator(new \App\Framework\QrCode\QrCodeRenderer());
$dataCodewords = $method->invoke($tempGenerator, $testData, $config);

echo "Data codewords: " . count($dataCodewords) . "\n";
echo "First 5 data codewords: " . implode(', ', array_slice($dataCodewords, 0, 5)) . "\n\n";

// Generate EC codewords
$reedSolomon = new ReedSolomonEncoder();
$ecInfo = ReedSolomonEncoder::getECInfo(1, 'M');
echo "EC info:\n";
echo "  Data codewords: {$ecInfo['dataCodewords']}\n";
echo "  EC codewords: {$ecInfo['ecCodewords']}\n\n";

$ecCodewords = $reedSolomon->encode($dataCodewords, $ecInfo['ecCodewords']);

echo "EC codewords: " . count($ecCodewords) . "\n";
echo "First 5 EC codewords: " . implode(', ', array_slice($ecCodewords, 0, 5)) . "\n\n";

// Expected for Version 1, Level M:
// Data: 16 codewords
// EC: 10 codewords
// Total: 26 codewords

$allCodewords = array_merge($dataCodewords, $ecCodewords);
echo "Total codewords: " . count($allCodewords) . " (expected: 26)\n";

if (count($allCodewords) === 26) {
    echo "✅ Codeword count is correct\n";
} else {
    echo "❌ Codeword count is wrong!\n";
}

// Verify known values for "HELLO WORLD" (if available)
echo "\n=== Codeword Verification ===\n";
echo "Note: This is a basic check. Full verification requires reference implementation.\n";