<?php

/**
 * Frontend for search log statistics.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public License,
 * v. 2.0. If a copy of the MPL was not distributed with this file, You can
 * obtain one at http://mozilla.org/MPL/2.0/.
 *
 * @package phpMyFAQ
 * @author Anatoliy Belsky <anatoliy.belsky@mayflower.de>
 * @author Thorsten Rinne <thorsten@phpmyfaq.de>
 * @copyright 2003-2022 phpMyFAQ Team
 * @license http://www.mozilla.org/MPL/2.0/ Mozilla Public License Version 2.0
 * @link https://www.phpmyfaq.de
 * @since 2003-03-30
 */

use phpMyFAQ\Filter;
use phpMyFAQ\Pagination;
use phpMyFAQ\Search;
use phpMyFAQ\Strings;

if (!defined('IS_VALID_PHPMYFAQ')) {
    http_response_code(400);
    exit();
}
?>
        <div class="d-flex justify-content-between flex-wrap flex-md-nowrap align-items-center pt-3 pb-2 mb-3 border-bottom">
          <h1 class="h2">
            <i aria-hidden="true" class="fa fa-tasks"></i>
              <?= $PMF_LANG['ad_menu_searchstats'] ?>
          </h1>
          <div class="btn-toolbar mb-2 mb-md-0">
            <div class="btn-group mr-2">
              <a class="btn btn-sm btn-danger" href="?action=truncatesearchterms&csrf=<?= $user->getCsrfTokenFromSession() ?>">
                <i aria-hidden="true" class="fa fa-trash"></i> <?= $PMF_LANG['ad_searchterm_del'] ?>
              </a>
            </div>
          </div>
        </div>

        <div class="row">
          <div class="col-lg-12">
<?php
if ($user->perm->hasPermission($user->getUserId(), 'viewlog')) {
    $perPage = 15;
    $pages = Filter::filterInput(INPUT_GET, 'pages', FILTER_VALIDATE_INT);
    $page = Filter::filterInput(INPUT_GET, 'page', FILTER_VALIDATE_INT, 1);
    $csrfToken = Filter::filterInput(INPUT_GET, 'csrf', FILTER_UNSAFE_RAW);

    if (!isset($_SESSION['phpmyfaq_csrf_token']) || $_SESSION['phpmyfaq_csrf_token'] !== $csrfToken) {
        $csrfChecked = false;
    } else {
        $csrfChecked = true;
    }

    $search = new Search($faqConfig);

    if ($csrfChecked && 'truncatesearchterms' === $action) {
        if ($search->deleteAllSearchTerms()) {
            printf('<p class="alert alert-success">%s</p>', $PMF_LANG['ad_searchterm_del_suc']);
        } else {
            printf('<p class="alert alert-danger">%s</p>', $PMF_LANG['ad_searchterm_del_err']);
        }
    } else {
        printf('<p class="alert alert-warning">%s</p>', $PMF_LANG['ad_searchterm_del_err']);
    }

    $searchesCount = $search->getSearchesCount();
    $searchesList = $search->getMostPopularSearches($searchesCount + 1, true);

    if (is_null($pages)) {
        $pages = round((count($searchesList) + ($perPage / 3)) / $perPage, 0);
    }

    $start = ($page - 1) * $perPage;
    $end = $start + $perPage;

    $baseUrl = sprintf(
        '%sadmin/?action=searchstats&amp;page=%d',
        $faqConfig->getDefaultUrl(),
        $page
    );

    // Pagination options
    $options = [
        'baseUrl' => $baseUrl,
        'total' => count($searchesList),
        'perPage' => $perPage,
        'pageParamName' => 'page',
    ];
    $pagination = new Pagination($faqConfig, $options);
    ?>
          <div id="ajaxresponse"></div>
          <table class="table table-striped">
            <thead>
            <tr>
              <th><?= $PMF_LANG['ad_searchstats_search_term'] ?></th>
              <th><?= $PMF_LANG['ad_searchstats_search_term_count'] ?></th>
              <th><?= $PMF_LANG['ad_searchstats_search_term_lang'] ?></th>
              <th colspan="2"><?= $PMF_LANG['ad_searchstats_search_term_percentage'] ?></th>
              <th>&nbsp;</th>
            </tr>
            </thead>
            <tfoot>
            <tr>
              <td colspan="6"><?= $pagination->render() ?></td>
            </tr>
            </tfoot>
            <tbody>
    <?php
    $counter = $displayedCounter = 0;
    $self = substr(__FILE__, strlen($_SERVER['DOCUMENT_ROOT']));

    foreach ($searchesList as $searchItem) {
        if ($displayedCounter >= $perPage) {
            ++$displayedCounter;
            continue;
        }

        ++$counter;
        if ($counter <= $start) {
            continue;
        }
        ++$displayedCounter;

        $num = round(($searchItem['number'] * 100 / $searchesCount), 2);
        ?>
              <tr class="row_search_id_<?= $searchItem['id'] ?>">
                  <td><?= Strings::htmlspecialchars($searchItem['searchterm']) ?></td>
                  <td><?= $searchItem['number'] ?></td>
                  <td><?= $languageCodes[Strings::strtoupper($searchItem['lang'])] ?></td>
                  <td><meter max="100" value="<?= $num ?>"></td>
                  <td><?= $num ?>%</td>
                  <td>
                      <a class="btn btn-danger" href="#" title="<?= $PMF_LANG['ad_news_delete'] ?>"
                         onclick="deleteSearchTerm('<?= urlencode($searchItem['searchterm']) ?>', <?= $searchItem['id'] ?>); return false;">
                        <i aria-hidden="true" class="fa fa-trash"></i>
                      </a>
                  </td>
              </tr>
        <?php
    }
    ?>
            </tbody>
          </table>
          <script>
            /**
             * Ajax call to delete search term
             *
             * @param searchterm
             * @param searchId
             */
            function deleteSearchTerm(searchterm, searchId) {
              if (confirm('<?= $PMF_LANG['ad_user_del_3'] ?>')) {
                $.getJSON("index.php?action=ajax&ajax=search&ajaxaction=delete_searchterm&searchterm=" + searchterm,
                  (response) => {
                    if (response === 1) {
                      $('#ajaxresponse').html('<?php printf(
                          '<p class="alert alert-success">%s</p>',
                          $PMF_LANG['ad_search_delsuc']
                                               ) ?>');
                      $('.row_search_id_' + searchId).fadeOut('slow');
                    } else {
                      $('#ajaxresponse').html('<?php printf(
                          '<p class="alert alert-danger">%s</p>',
                          $PMF_LANG['ad_search_delfail']
                                               ) ?>');
                    }
                  });
              }
            }
          </script>
    <?php
} else {
    echo $PMF_LANG['err_NotAuth'];
}
?>
        </div>
      </div>