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<?php
/**
 *
 * This file is part of the phpBB Forum Software package.
 *
 * @copyright (c) phpBB Limited <https://www.phpbb.com>
 * @license GNU General Public License, version 2 (GPL-2.0)
 *
 * For full copyright and license information, please see
 * the docs/CREDITS.txt file.
 *
 */
namespace phpbb\install\module\update_filesystem\task;
use phpbb\filesystem\filesystem;
use phpbb\install\exception\user_interaction_required_exception;
use phpbb\install\helper\config;
use phpbb\install\helper\container_factory;
use phpbb\install\helper\file_updater\factory;
use phpbb\install\helper\iohandler\iohandler_interface;
use phpbb\install\task_base;
class show_file_status extends task_base
{
    /**
     * @var \phpbb\cache\driver\driver_interface
     */
    protected $cache;
    /**
     * @var filesystem
     */
    protected $filesystem;
    /**
     * @var config
     */
    protected $installer_config;
    /**
     * @var iohandler_interface
     */
    protected $iohandler;
    /**
     * @var \phpbb\install\helper\file_updater\compression_file_updater
     */
    protected $file_updater;
    /**
     * Constructor
     *
     * @param container_factory        $container
     * @param config                $config
     * @param iohandler_interface    $iohandler
     * @param filesystem            $filesystem
     * @param factory                $file_updater_factory
     */
    public function __construct(container_factory $container, config $config, iohandler_interface $iohandler, filesystem $filesystem, factory $file_updater_factory)
    {
        $this->installer_config    = $config;
        $this->iohandler        = $iohandler;
        $this->filesystem        = $filesystem;
        $this->cache = $container->get('cache.driver');
        // Initialize compression file updater
        $this->file_updater = $file_updater_factory->get('compression');
        parent::__construct(false);
    }
    /**
     * {@inheritdoc}
     */
    public function check_requirements()
    {
        return $this->installer_config->get('do_update_files', false);
    }
    /**
     * {@inheritdoc}
     */
    public function run()
    {
        if (!$this->iohandler->get_input('submit_continue_file_update', false))
        {
            // Handle merge conflicts
            $merge_conflicts = $this->installer_config->get('merge_conflict_list', array());
            // Create archive for merge conflicts
            if (!empty($merge_conflicts))
            {
                $compression_method = $this->installer_config->get('file_update_compression', '');
                $conflict_archive = $this->file_updater->init($compression_method);
                $this->installer_config->set('update_file_conflict_archive', $conflict_archive);
                foreach ($merge_conflicts as $filename)
                {
                    $this->file_updater->create_new_file(
                        $filename,
                        base64_decode($this->cache->get('_file_' . md5($filename))),
                        true
                    );
                }
                // Render download box
                $this->iohandler->add_download_link(
                    'phpbb_installer_update_conflict_download',
                    'DOWNLOAD_CONFLICTS',
                    'DOWNLOAD_CONFLICTS_EXPLAIN'
                );
                $this->file_updater->close();
            }
            // Render update file statuses
            $file_update_info = $this->installer_config->get('update_files', array());
            $file_status = array(
                'deleted'        => (!isset($file_update_info['delete'])) ? array() : $file_update_info['delete'],
                'new'            => (!isset($file_update_info['new'])) ? array() : $file_update_info['new'],
                'conflict'        => $this->installer_config->get('merge_conflict_list', array()),
                'modified'        => (!isset($file_update_info['update_with_diff'])) ? array() : $file_update_info['update_with_diff'],
                'not_modified'    => (!isset($file_update_info['update_without_diff'])) ? array() : $file_update_info['update_without_diff'],
            );
            $this->iohandler->render_update_file_status($file_status);
            // Add form to continue update
            $this->iohandler->add_user_form_group('UPDATE_CONTINUE_FILE_UPDATE', array(
                'submit_continue_file_update' => array(
                    'label' => 'UPDATE_CONTINUE_FILE_UPDATE',
                    'type' => 'submit',
                ),
            ));
            // Show results to the user
            throw new user_interaction_required_exception();
        }
        else
        {
            $conflict_archive_path = $this->installer_config->get('update_file_conflict_archive', null);
            // Remove archive
            if ($conflict_archive_path !== null && $this->filesystem->exists($conflict_archive_path))
            {
                $this->filesystem->remove($conflict_archive_path);
            }
            $this->installer_config->set('update_file_conflict_archive', null);
        }
    }
    /**
     * {@inheritdoc}
     */
    static public function get_step_count()
    {
        return 0;
    }
    /**
     * {@inheritdoc}
     */
    public function get_task_lang_name()
    {
        return '';
    }
}