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<?php

declare(strict_types=1);

namespace ZipStream\Test;

use DateTimeImmutable;
use PHPUnit\Framework\TestCase;
use ZipStream\CentralDirectoryFileHeader;
use ZipStream\CompressionMethod;

class CentralDirectoryFileHeaderTest extends TestCase
{
    public function testSerializesCorrectly(): void
    {
        $dateTime = new DateTimeImmutable('2022-01-01 01:01:01Z');

$header = CentralDirectoryFileHeader::generate(
            versionMadeBy: 0x603,
            versionNeededToExtract: 0x002D,
            generalPurposeBitFlag: 0x2222,
            compressionMethod: CompressionMethod::DEFLATE,
            lastModificationDateTime: $dateTime,
            crc32: 0x11111111,
            compressedSize: 0x77777777,
            uncompressedSize: 0x99999999,
            fileName: 'test.png',
            extraField: 'some content',
            fileComment: 'some comment',
            diskNumberStart: 0,
            internalFileAttributes: 0,
            externalFileAttributes: 32,
            relativeOffsetOfLocalHeader: 0x1234,
        );

$this->assertSame(
            bin2hex($header),
            '504b0102' // 4 bytes; central file header signature
            . '0306' // 2 bytes; version made by
            . '2d00' // 2 bytes; version needed to extract
            . '2222' // 2 bytes; general purpose bit flag
            . '0800' // 2 bytes; compression method
            . '2008' // 2 bytes; last mod file time
            . '2154' // 2 bytes; last mod file date
            . '11111111' // 4 bytes; crc-32
            . '77777777' // 4 bytes; compressed size
            . '99999999' // 4 bytes; uncompressed size
            . '0800' // 2 bytes; file name length (n)
            . '0c00' // 2 bytes; extra field length (m)
            . '0c00' // 2 bytes; file comment length (o)
            . '0000' // 2 bytes; disk number start
            . '0000' // 2 bytes; internal file attributes
            . '20000000' // 4 bytes; external file attributes
            . '34120000' // 4 bytes; relative offset of local header
            . '746573742e706e67' // n bytes; file name
            . '736f6d6520636f6e74656e74' // m bytes; extra field
            . '736f6d6520636f6d6d656e74' // o bytes; file comment
        );
    }
}