<?php

declare(strict_types=1);

namespace PhpMyAdmin\Controllers\Server;

use PhpMyAdmin\Common;
use PhpMyAdmin\Config\PageSettings;
use PhpMyAdmin\Controllers\AbstractController;
use PhpMyAdmin\DatabaseInterface;
use PhpMyAdmin\Export\Options;
use PhpMyAdmin\Message;
use PhpMyAdmin\Plugins;
use PhpMyAdmin\Plugins\ExportPlugin;
use PhpMyAdmin\Response;
use PhpMyAdmin\Template;
use function array_merge;

final class ExportController extends AbstractController
{
    /** @var Options */
    private $export;

    /**
     * @param Response          $response A Response instance.
     * @param DatabaseInterface $dbi      A DatabaseInterface instance.
     * @param Template          $template A Template instance.
     * @param Options           $export   A Export instance.
     */
    public function __construct($response, $dbi, Template $template, Options $export)
    {
        parent::__construct($response, $dbi, $template);
        $this->export = $export;
    }

    public function index(): void
    {
        global $db, $table, $sql_query, $num_tables, $unlim_num_rows;
        global $tmp_select, $select_item;

        Common::server();

        $pageSettings = new PageSettings('Export');
        $pageSettingsErrorHtml = $pageSettings->getErrorHTML();
        $pageSettingsHtml = $pageSettings->getHTML();

        $this->addScriptFiles(['export.js']);

        $select_item = $tmp_select ?? '';
        $databases = $this->export->getDatabasesForSelectOptions($select_item);

        if (! isset($sql_query)) {
            $sql_query = '';
        }
        if (! isset($num_tables)) {
            $num_tables = 0;
        }
        if (! isset($unlim_num_rows)) {
            $unlim_num_rows = 0;
        }

        $GLOBALS['single_table'] = $_POST['single_table'] ?? $_GET['single_table'] ?? null;

        /** @var ExportPlugin[] $exportList */
        $exportList = Plugins::getPlugins('export', 'libraries/classes/Plugins/Export/', [
            'export_type' => 'server',
            'single_table' => isset($GLOBALS['single_table']),
        ]);

        if (empty($exportList)) {
            $this->response->addHTML(Message::error(
                __('Could not load export plugins, please check your installation!')
            )->getDisplay());

            return;
        }

        $options = $this->export->getOptions(
            'server',
            $db,
            $table,
            $sql_query,
            $num_tables,
            $unlim_num_rows,
            $exportList
        );

        $this->render('server/export/index', array_merge($options, [
            'page_settings_error_html' => $pageSettingsErrorHtml,
            'page_settings_html' => $pageSettingsHtml,
            'databases' => $databases,
        ]));
    }
}