class ValidateCommand

class ValidateCommand extends BaseCommand {
    
    /**
     * configure
     */
    protected function configure() : void {
        $this->setName('validate')
            ->setDescription('Validates a composer.json and composer.lock')
            ->setDefinition([
            new InputOption('no-check-all', null, InputOption::VALUE_NONE, 'Do not validate requires for overly strict/loose constraints'),
            new InputOption('check-lock', null, InputOption::VALUE_NONE, 'Check if lock file is up to date (even when config.lock is false)'),
            new InputOption('no-check-lock', null, InputOption::VALUE_NONE, 'Do not check if lock file is up to date'),
            new InputOption('no-check-publish', null, InputOption::VALUE_NONE, 'Do not check for publish errors'),
            new InputOption('no-check-version', null, InputOption::VALUE_NONE, 'Do not report a warning if the version field is present'),
            new InputOption('with-dependencies', 'A', InputOption::VALUE_NONE, 'Also validate the composer.json of all installed dependencies'),
            new InputOption('strict', null, InputOption::VALUE_NONE, 'Return a non-zero exit code for warnings as well as errors'),
            new InputArgument('file', InputArgument::OPTIONAL, 'path to composer.json file'),
        ])
            ->setHelp(<<<EOT
The validate command validates a given composer.json and composer.lock

Exit codes in case of errors are:
1 validation warning(s), only when --strict is given
2 validation error(s)
3 file unreadable or missing

Read more at https://getcomposer.org/doc/03-cli.md#validate
EOT
);
    }
    protected function execute(InputInterface $input, OutputInterface $output) : int {
        $file = $input->getArgument('file') ?: Factory::getComposerFile();
        $io = $this->getIO();
        if (!file_exists($file)) {
            $io->writeError('<error>' . $file . ' not found.</error>');
            return 3;
        }
        if (!Filesystem::isReadable($file)) {
            $io->writeError('<error>' . $file . ' is not readable.</error>');
            return 3;
        }
        $validator = new ConfigValidator($io);
        $checkAll = $input->getOption('no-check-all') ? 0 : ValidatingArrayLoader::CHECK_ALL;
        $checkPublish = !$input->getOption('no-check-publish');
        $checkLock = !$input->getOption('no-check-lock');
        $checkVersion = $input->getOption('no-check-version') ? 0 : ConfigValidator::CHECK_VERSION;
        $isStrict = $input->getOption('strict');
        [
            $errors,
            $publishErrors,
            $warnings,
        ] = $validator->validate($file, $checkAll, $checkVersion);
        $lockErrors = [];
        $composer = $this->createComposerInstance($input, $io, $file);
        // config.lock = false ~= implicit --no-check-lock; --check-lock overrides
        $checkLock = $checkLock && $composer->getConfig()
            ->get('lock') || $input->getOption('check-lock');
        $locker = $composer->getLocker();
        if ($locker->isLocked() && !$locker->isFresh()) {
            $lockErrors[] = '- The lock file is not up to date with the latest changes in composer.json, it is recommended that you run `composer update` or `composer update <package name>`.';
        }
        if ($locker->isLocked()) {
            $lockErrors = array_merge($lockErrors, $locker->getMissingRequirementInfo($composer->getPackage(), true));
        }
        $this->outputResult($io, $file, $errors, $warnings, $checkPublish, $publishErrors, $checkLock, $lockErrors, true);
        // $errors include publish and lock errors when exists
        $exitCode = count($errors) > 0 ? 2 : ($isStrict && count($warnings) > 0 ? 1 : 0);
        if ($input->getOption('with-dependencies')) {
            $localRepo = $composer->getRepositoryManager()
                ->getLocalRepository();
            foreach ($localRepo->getPackages() as $package) {
                $path = $composer->getInstallationManager()
                    ->getInstallPath($package);
                if (null === $path) {
                    continue;
                }
                $file = $path . '/composer.json';
                if (is_dir($path) && file_exists($file)) {
                    [
                        $errors,
                        $publishErrors,
                        $warnings,
                    ] = $validator->validate($file, $checkAll, $checkVersion);
                    $this->outputResult($io, $package->getPrettyName(), $errors, $warnings, $checkPublish, $publishErrors);
                    // $errors include publish errors when exists
                    $depCode = count($errors) > 0 ? 2 : ($isStrict && count($warnings) > 0 ? 1 : 0);
                    $exitCode = max($depCode, $exitCode);
                }
            }
        }
        $commandEvent = new CommandEvent(PluginEvents::COMMAND, 'validate', $input, $output);
        $eventCode = $composer->getEventDispatcher()
            ->dispatch($commandEvent->getName(), $commandEvent);
        return max($eventCode, $exitCode);
    }
    
    /**
     * @param string[] $errors
     * @param string[] $warnings
     * @param string[] $publishErrors
     * @param string[] $lockErrors
     */
    private function outputResult(IOInterface $io, string $name, array &$errors, array &$warnings, bool $checkPublish = false, array $publishErrors = [], bool $checkLock = false, array $lockErrors = [], bool $printSchemaUrl = false) : void {
        $doPrintSchemaUrl = false;
        if ($errors) {
            $io->writeError('<error>' . $name . ' is invalid, the following errors/warnings were found:</error>');
        }
        elseif ($publishErrors) {
            $io->writeError('<info>' . $name . ' is valid for simple usage with Composer but has</info>');
            $io->writeError('<info>strict errors that make it unable to be published as a package</info>');
            $doPrintSchemaUrl = $printSchemaUrl;
        }
        elseif ($warnings) {
            $io->writeError('<info>' . $name . ' is valid, but with a few warnings</info>');
            $doPrintSchemaUrl = $printSchemaUrl;
        }
        elseif ($lockErrors) {
            $io->write('<info>' . $name . ' is valid but your composer.lock has some ' . ($checkLock ? 'errors' : 'warnings') . '</info>');
        }
        else {
            $io->write('<info>' . $name . ' is valid</info>');
        }
        if ($doPrintSchemaUrl) {
            $io->writeError('<warning>See https://getcomposer.org/doc/04-schema.md for details on the schema</warning>');
        }
        if ($errors) {
            $errors = array_map(static function ($err) : string {
                return '- ' . $err;
            }, $errors);
            array_unshift($errors, '# General errors');
        }
        if ($warnings) {
            $warnings = array_map(static function ($err) : string {
                return '- ' . $err;
            }, $warnings);
            array_unshift($warnings, '# General warnings');
        }
        // Avoid setting the exit code to 1 in case --strict and --no-check-publish/--no-check-lock are combined
        $extraWarnings = [];
        // If checking publish errors, display them as errors, otherwise just show them as warnings
        if ($publishErrors) {
            $publishErrors = array_map(static function ($err) : string {
                return '- ' . $err;
            }, $publishErrors);
            if ($checkPublish) {
                array_unshift($publishErrors, '# Publish errors');
                $errors = array_merge($errors, $publishErrors);
            }
            else {
                array_unshift($publishErrors, '# Publish warnings');
                $extraWarnings = array_merge($extraWarnings, $publishErrors);
            }
        }
        // If checking lock errors, display them as errors, otherwise just show them as warnings
        if ($lockErrors) {
            if ($checkLock) {
                array_unshift($lockErrors, '# Lock file errors');
                $errors = array_merge($errors, $lockErrors);
            }
            else {
                array_unshift($lockErrors, '# Lock file warnings');
                $extraWarnings = array_merge($extraWarnings, $lockErrors);
            }
        }
        $messages = [
            'error' => $errors,
            'warning' => array_merge($warnings, $extraWarnings),
        ];
        foreach ($messages as $style => $msgs) {
            foreach ($msgs as $msg) {
                if (strpos($msg, '#') === 0) {
                    $io->writeError('<' . $style . '>' . $msg . '</' . $style . '>');
                }
                else {
                    $io->writeError($msg);
                }
            }
        }
    }

}