<?php

declare(strict_types=1);

use Rector\Exception\ShouldNotHappenException;

use Rector\FileSystem\JsonFileSystem;

use Symfony\Component\Console\Command\Command;

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

$packageVersionResolver = new PackageVersionResolver();

$localPHPStanVersion = $packageVersionResolver->resolve(__DIR__ . '/../composer.json', 'phpstan/phpstan');

$downgradedPHPStanVersion = $packageVersionResolver->resolve(

__DIR__ . '/../build/target-repository/composer.json',

'phpstan/phpstan'

);

if ($localPHPStanVersion === $downgradedPHPStanVersion) {

echo '[OK] PHPStan version in local and downgraded composer.json are equal, good job!' . PHP_EOL;

exit(Command::SUCCESS);

}

echo sprintf(

'[ERROR] PHPStan version in local composer.json is "%s", in downgraded "%s".%sMake sure they are equal first.',

$localPHPStanVersion,

$downgradedPHPStanVersion,

PHP_EOL

) . PHP_EOL;

exit(Command::FAILURE);

final class PackageVersionResolver

{

public function resolve(string $composerFilePath, string $packageName): string

{

$composerJson = JsonFileSystem::readFilePath($composerFilePath);

$packageVersion = $composerJson['require'][$packageName] ?? null;

if ($packageVersion === null) {

throw new ShouldNotHappenException();

}

return $packageVersion;

}

}