<?php

/**
 * @package     Joomla.Administrator
 * @subpackage  com_installer
 *
 * @copyright   (C) 2009 Open Source Matters, Inc. <https://www.joomla.org>
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\Component\Installer\Administrator\Controller;

use Joomla\CMS\Component\ComponentHelper;
use Joomla\CMS\Language\Text;
use Joomla\CMS\MVC\Controller\BaseController;
use Joomla\CMS\Response\JsonResponse;
use Joomla\CMS\Router\Route;
use Joomla\CMS\Session\Session;
use Joomla\CMS\Updater\Updater;
use Joomla\CMS\Uri\Uri;
use Joomla\Component\Installer\Administrator\Model\UpdateModel;

/**
 * Installer Update Controller
 *
 * @since  1.6
 */
class UpdateController extends BaseController
{
    /**
     * Update a set of extensions.
     *
     * @return  void
     *
     * @since   1.6
     */
    public function update()
    {
        // Check for request forgeries.
        $this->checkToken();

        /** @var UpdateModel $model */
        $model = $this->getModel('update');

        $uid = (array) $this->input->get('cid', array(), 'int');

        // Remove zero values resulting from input filter
        $uid = array_filter($uid);

        // Get the minimum stability.
        $params        = ComponentHelper::getComponent('com_installer')->getParams();
        $minimum_stability = (int) $params->get('minimum_stability', Updater::STABILITY_STABLE);

        $model->update($uid, $minimum_stability);

        $app          = $this->app;
        $redirect_url = $app->getUserState('com_installer.redirect_url');

        // Don't redirect to an external URL.
        if (!Uri::isInternal($redirect_url)) {
            $redirect_url = '';
        }

        if (empty($redirect_url)) {
            $redirect_url = Route::_('index.php?option=com_installer&view=update', false);
        } else {
            // Wipe out the user state when we're going to redirect.
            $app->setUserState('com_installer.redirect_url', '');
            $app->setUserState('com_installer.message', '');
            $app->setUserState('com_installer.extension_message', '');
        }

        $this->setRedirect($redirect_url);
    }

    /**
     * Find new updates.
     *
     * @return  void
     *
     * @since   1.6
     */
    public function find()
    {
        $this->checkToken('request');

        // Get the caching duration.
        $params        = ComponentHelper::getComponent('com_installer')->getParams();
        $cache_timeout = (int) $params->get('cachetimeout', 6);
        $cache_timeout = 3600 * $cache_timeout;

        // Get the minimum stability.
        $minimum_stability = (int) $params->get('minimum_stability', Updater::STABILITY_STABLE);

        // Find updates.
        /** @var UpdateModel $model */
        $model = $this->getModel('update');

        // Purge the table before checking again
        $model->purge();

        $disabledUpdateSites = $model->getDisabledUpdateSites();

        if ($disabledUpdateSites) {
            $updateSitesUrl = Route::_('index.php?option=com_installer&view=updatesites');
            $this->app->enqueueMessage(Text::sprintf('COM_INSTALLER_MSG_UPDATE_SITES_COUNT_CHECK', $updateSitesUrl), 'warning');
        }

        $model->findUpdates(0, $cache_timeout, $minimum_stability);

        if (0 === $model->getTotal()) {
            $this->app->enqueueMessage(Text::_('COM_INSTALLER_MSG_UPDATE_NOUPDATES'), 'info');
        }

        $this->setRedirect(Route::_('index.php?option=com_installer&view=update', false));
    }

    /**
     * Fetch and report updates in \JSON format, for AJAX requests
     *
     * @return void
     *
     * @since 2.5
     */
    public function ajax()
    {
        $app = $this->app;

        if (!Session::checkToken('get')) {
            $app->setHeader('status', 403, true);
            $app->sendHeaders();
            echo Text::_('JINVALID_TOKEN_NOTICE');
            $app->close();
        }

        // Close the session before we make a long running request
        $app->getSession()->abort();

        $eid               = $this->input->getInt('eid', 0);
        $skip              = $this->input->get('skip', array(), 'array');
        $cache_timeout     = $this->input->getInt('cache_timeout', 0);
        $minimum_stability = $this->input->getInt('minimum_stability', -1);

        $params        = ComponentHelper::getComponent('com_installer')->getParams();

        if ($cache_timeout == 0) {
            $cache_timeout = (int) $params->get('cachetimeout', 6);
            $cache_timeout = 3600 * $cache_timeout;
        }

        if ($minimum_stability < 0) {
            $minimum_stability = (int) $params->get('minimum_stability', Updater::STABILITY_STABLE);
        }

        /** @var UpdateModel $model */
        $model = $this->getModel('update');
        $model->findUpdates($eid, $cache_timeout, $minimum_stability);

        $model->setState('list.start', 0);
        $model->setState('list.limit', 0);

        if ($eid != 0) {
            $model->setState('filter.extension_id', $eid);
        }

        $updates = $model->getItems();

        if (!empty($skip)) {
            $unfiltered_updates = $updates;
            $updates            = array();

            foreach ($unfiltered_updates as $update) {
                if (!in_array($update->extension_id, $skip)) {
                    $updates[] = $update;
                }
            }
        }

        echo json_encode($updates);

        $app->close();
    }

    /**
     * Provide the data for a badge in a menu item via JSON
     *
     * @return  void
     *
     * @since   4.0.0
     * @throws  \Exception
     */
    public function getMenuBadgeData()
    {
        if (!$this->app->getIdentity()->authorise('core.manage', 'com_installer')) {
            throw new \Exception(Text::_('JGLOBAL_AUTH_ACCESS_DENIED'));
        }

        $model = $this->getModel('Update');

        echo new JsonResponse($model->getTotal());
    }
}
