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<?php

/**
 * Joomla! Content Management System
 *
 * @copyright  (C) 2020 Open Source Matters, Inc. <https://www.joomla.org>
 * @license    GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\CMS\Console;

use Joomla\CMS\Factory;
use Joomla\CMS\Installer\Installer;
use Joomla\CMS\Language\Text;
use Joomla\CMS\Table\Extension;
use Joomla\Console\Command\AbstractCommand;
use Joomla\Database\DatabaseAwareTrait;
use Joomla\Database\DatabaseInterface;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Style\SymfonyStyle;

// phpcs:disable PSR1.Files.SideEffects
\defined('JPATH_PLATFORM') or die;
// phpcs:enable PSR1.Files.SideEffects

/**
 * Console command for removing extensions
 *
 * @since  4.0.0
 */
class ExtensionRemoveCommand extends AbstractCommand
{
    use DatabaseAwareTrait;

    /**
     * The default command name
     *
     * @var    string
     * @since  4.0.0
     */
    protected static $defaultName = 'extension:remove';

    /**
     * @var InputInterface
     * @since 4.0.0
     */
    private $cliInput;

    /**
     * @var SymfonyStyle
     * @since 4.0.0
     */
    private $ioStyle;

    /**
     * Exit Code for extensions remove abort
     * @since 4.0.0
     */
    public const REMOVE_ABORT = 3;

    /**
     * Exit Code for extensions remove failure
     * @since 4.0.0
     */
    public const REMOVE_FAILED = 1;

    /**
     * Exit Code for invalid response
     * @since 4.0.0
     */
    public const REMOVE_INVALID_RESPONSE = 5;

    /**
     * Exit Code for invalid type
     * @since 4.0.0
     */
    public const REMOVE_INVALID_TYPE = 6;

    /**
     * Exit Code for extensions locked remove failure
     * @since 4.0.0
     */
    public const REMOVE_LOCKED = 4;

    /**
     * Exit Code for extensions not found
     * @since 4.0.0
     */
    public const REMOVE_NOT_FOUND = 2;

    /**
     * Exit Code for extensions remove success
     * @since 4.0.0
     */
    public const REMOVE_SUCCESSFUL = 0;

    /**
     * Command constructor.
     *
     * @param   DatabaseInterface  $db  The database
     *
     * @since   4.2.0
     */
    public function __construct(DatabaseInterface $db)
    {
        parent::__construct();

        $this->setDatabase($db);
    }

    /**
     * Configures the IO
     *
     * @param   InputInterface   $input   Console Input
     * @param   OutputInterface  $output  Console Output
     *
     * @return void
     *
     * @since 4.0.0
     *
     */
    private function configureIO(InputInterface $input, OutputInterface $output): void
    {
        $this->cliInput = $input;
        $this->ioStyle  = new SymfonyStyle($input, $output);
        $language       = Factory::getLanguage();
        $language->load('', JPATH_ADMINISTRATOR, null, false, false) ||
        $language->load('', JPATH_ADMINISTRATOR, null, true);
        $language->load('com_installer', JPATH_ADMINISTRATOR, null, false, false) ||
        $language->load('com_installer', JPATH_ADMINISTRATOR, null, true);
    }

    /**
     * Initialise the command.
     *
     * @return  void
     *
     * @since   4.0.0
     */
    protected function configure(): void
    {
        $this->addArgument(
            'extensionId',
            InputArgument::REQUIRED,
            'ID of extension to be removed (run extension:list command to check)'
        );

        $help = "<info>%command.name%</info> is used to uninstall extensions.
		\nThe command requires one argument, the ID of the extension to uninstall.
		\nYou may find this ID by running the <info>extension:list</info> command.
		\nUsage: <info>php %command.full_name% <extension_id></info>";

        $this->setDescription('Remove an extension');
        $this->setHelp($help);
    }

    /**
     * Internal function to execute the command.
     *
     * @param   InputInterface   $input   The input to inject into the command.
     * @param   OutputInterface  $output  The output to inject into the command.
     *
     * @return  integer  The command exit code
     *
     * @since   4.0.0
     */
    protected function doExecute(InputInterface $input, OutputInterface $output): int
    {
        $this->configureIO($input, $output);
        $this->ioStyle->title('Remove Extension');

        $extensionId = $this->cliInput->getArgument('extensionId');

        $response = $this->ioStyle->ask('Are you sure you want to remove this extension?', 'yes/no');

        if (strtolower($response) === 'yes') {
            // Get an installer object for the extension type
            $installer = Installer::getInstance();
            $row       = new Extension($this->getDatabase());

            if ((int) $extensionId === 0 || !$row->load($extensionId)) {
                $this->ioStyle->error("Extension with ID of $extensionId not found.");

                return self::REMOVE_NOT_FOUND;
            }

            // Do not allow to uninstall locked extensions.
            if ((int) $row->locked === 1) {
                $this->ioStyle->error(Text::sprintf('COM_INSTALLER_UNINSTALL_ERROR_LOCKED_EXTENSION', $row->name, $extensionId));

                return self::REMOVE_LOCKED;
            }

            if ($row->type) {
                if (!$installer->uninstall($row->type, $extensionId)) {
                    $this->ioStyle->error('Extension not removed.');

                    return self::REMOVE_FAILED;
                }

                $this->ioStyle->success('Extension removed!');

                return self::REMOVE_SUCCESSFUL;
            }

            return self::REMOVE_INVALID_TYPE;
        } elseif (strtolower($response) === 'no') {
            $this->ioStyle->note('Extension not removed.');

            return self::REMOVE_ABORT;
        }

        $this->ioStyle->warning('Invalid response');

        return self::REMOVE_INVALID_RESPONSE;
    }
}