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<?php

namespace Doctrine\DBAL\Tools\Console\Command;

use Doctrine\DBAL\Connection;

use Doctrine\DBAL\Exception;

use Doctrine\DBAL\Tools\Console\ConnectionProvider;

use RuntimeException;

use Symfony\Component\Console\Command\Command;

use Symfony\Component\Console\Input\InputArgument;

use Symfony\Component\Console\Input\InputInterface;

use Symfony\Component\Console\Input\InputOption;

use Symfony\Component\Console\Output\OutputInterface;

use Symfony\Component\Console\Style\SymfonyStyle;

use function array_keys;

use function assert;

use function is_bool;

use function is_string;

use function sprintf;

use function stripos;

/**

 * Task for executing arbitrary SQL that can come from a file or directly from

 * the command line.

 */

class RunSqlCommand extends Command

{

    private ConnectionProvider $connectionProvider;

    public function __construct(ConnectionProvider $connectionProvider)

    {

        parent::__construct();

        $this->connectionProvider = $connectionProvider;

    }

    /** @return void */

    protected function configure()

    {

        $this

        ->setName('dbal:run-sql')

        ->setDescription('Executes arbitrary SQL directly from the command line.')

        ->setDefinition([

            new InputOption('connection', null, InputOption::VALUE_REQUIRED, 'The named database connection'),

            new InputArgument('sql', InputArgument::REQUIRED, 'The SQL statement to execute.'),

            new InputOption('depth', null, InputOption::VALUE_REQUIRED, 'Dumping depth of result set (deprecated).'),

            new InputOption('force-fetch', null, InputOption::VALUE_NONE, 'Forces fetching the result.'),

        ])

        ->setHelp(<<<'EOT'

The <info>%command.name%</info> command executes the given SQL query and

outputs the results:

<info>php %command.full_name% "SELECT * FROM users"</info>

EOT);

    }

    /**

     * {@inheritdoc}

     *

     * @return int

     *

     * @throws Exception

     */

    protected function execute(InputInterface $input, OutputInterface $output)

    {

        $conn = $this->getConnection($input);

        $io   = new SymfonyStyle($input, $output);

        $sql = $input->getArgument('sql');

        if ($sql === null) {

            throw new RuntimeException("Argument 'SQL' is required in order to execute this command correctly.");

        }

        assert(is_string($sql));

        if ($input->getOption('depth') !== null) {

            $io->warning('Parameter "depth" is deprecated and has no effect anymore.');

        }

        $forceFetch = $input->getOption('force-fetch');

        assert(is_bool($forceFetch));

        if (stripos($sql, 'select') === 0 || $forceFetch) {

            $this->runQuery($io, $conn, $sql);

        } else {

            $this->runStatement($io, $conn, $sql);

        }

        return 0;

    }

    private function getConnection(InputInterface $input): Connection

    {

        $connectionName = $input->getOption('connection');

        assert(is_string($connectionName) || $connectionName === null);

        if ($connectionName !== null) {

            return $this->connectionProvider->getConnection($connectionName);

        }

        return $this->connectionProvider->getDefaultConnection();

    }

    /** @throws Exception */

    private function runQuery(SymfonyStyle $io, Connection $conn, string $sql): void

    {

        $resultSet = $conn->fetchAllAssociative($sql);

        if ($resultSet === []) {

            $io->success('The query yielded an empty result set.');

            return;

        }

        $io->table(array_keys($resultSet[0]), $resultSet);

    }

    /** @throws Exception */

    private function runStatement(SymfonyStyle $io, Connection $conn, string $sql): void

    {

        $io->success(sprintf('%d rows affected.', $conn->executeStatement($sql)));

    }

}