Humbug\PhpScoper\Scoper\Composer\InstalledPackagesScoper

Complexity

Total Complexity

8

Size/Duplication

Total Lines	68
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes	1
Bugs	0	Features	0

4 Methods

Rating	Name	Duplication	Size	Complexity
A	decodeContents()	0	12	2
A	__construct()	0	3	1
A	scope()	0	21	4
A	prefixLockPackages()	0	9	1

<?php

declare(strict_types=1);

/*
 * This file is part of the humbug/php-scoper package.
 *
 * Copyright (c) 2017 Théo FIDRY <theo.fidry@gmail.com>,
 *                    Pádraic Brady <padraic.brady@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Humbug\PhpScoper\Scoper\Composer;

use Humbug\PhpScoper\Scoper;
use Humbug\PhpScoper\Whitelist;
use InvalidArgumentException;
use stdClass;
use function array_map;
use function gettype;
use function is_array;
use function preg_match as native_preg_match;
use function Safe\json_decode;
use function Safe\json_encode;
use function Safe\sprintf;
use const JSON_PRETTY_PRINT;
use const JSON_THROW_ON_ERROR;

final class InstalledPackagesScoper implements Scoper
{
    private static string $filePattern = '/composer(\/|\\\\)installed\.json$/';

    private Scoper $decoratedScoper;

    public function __construct(Scoper $decoratedScoper)
    {
        $this->decoratedScoper = $decoratedScoper;
    }

    /**
     * Scopes PHP and JSON files related to Composer.
     */
    public function scope(string $filePath, string $contents, string $prefix, array $patchers, Whitelist $whitelist): string
    {
        if (1 !== native_preg_match(self::$filePattern, $filePath)) {
            return $this->decoratedScoper->scope($filePath, $contents, $prefix, $patchers, $whitelist);
        }

        $decodedJson = self::decodeContents($contents);

        if (!isset($decodedJson->packages) || !is_array($decodedJson->packages)) {
            throw new InvalidArgumentException('Expected the decoded JSON to contain the list of installed packages');
        }

        $decodedJson->packages = self::prefixLockPackages(
            $decodedJson->packages,
            $prefix,
            $whitelist,
        );

        return json_encode(
            $decodedJson,
            JSON_PRETTY_PRINT
        );
    }

    private static function decodeContents(string $contents): stdClass
    {
        $decodedJson = json_decode($contents, false, 512,  JSON_THROW_ON_ERROR);

        if ($decodedJson instanceof stdClass) {
            return $decodedJson;
        }

        throw new InvalidArgumentException(
            sprintf(
                'Expected the decoded JSON to be an stdClass instance, got "%s" instead',
                gettype($decodedJson),
            )
        );
    }

    /**
     * @param array<string, stdClass> $packages
     *
     * @return array<string, stdClass>
     */
    private static function prefixLockPackages(array $packages, string $prefix, Whitelist $whitelist): array
    {
        return array_map(
            static fn (stdClass $package) => AutoloadPrefixer::prefixPackageAutoloadStatements(
                $package,
                $prefix,
                $whitelist,
            ),
            $packages,
        );
    }
}