Adjust copyrights years

<?php
/**
 * SeekQuarry/Yioop --
 * Open Source Pure PHP Search Engine, Crawler, and Indexer
 *
 * Copyright (C) 2009 - 2023  Chris Pollett chris@pollett.org
 *
 * LICENSE:
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 *
 * END LICENSE
 *
 * @author Chris Pollett chris@pollett.org
 * @license https://www.gnu.org/licenses/ GPL3
 * @link https://www.seekquarry.com/
 * @copyright 2009 - 2023
 * @filesource
 */
namespace seekquarry\yioop\views\elements;

use seekquarry\yioop as B;
use seekquarry\yioop\configs as C;
use seekquarry\yioop\library\classifiers\Classifier;

/**
 * This element renders the page that lists classifiers, provides a form to
 * create new ones, and provides per-classifier action links to edit, finalize,
 * and delete the associated classifier.
 *
 * @author Shawn Tice
 */
class ManageclassifiersElement extends Element
{
    /**
     * Draws the "new classifier" form and table of existing classifiesr
     *
     * @param array $data used to pass the list of existing classifier
     * instances
     */
    public function render($data)
    {
        ?>
        <div class="current-activity">
        <?= $this->renderClassifiersTable($data); ?>
        </div>
        <?php
    }
    /**
     * Draws the table of currently defined classifiers for the Yioop system
     * @param array $data info about current users and current mixes, CSRF token
     */
    public function renderClassifiersTable($data)
    {
        $context = "";
        if ($data['FORM_TYPE'] == 'search' ||
            !empty($data['context']) && $data['context'] == 'search') {
            $context = 'context=search&amp;';
        }
        $admin_url = htmlentities(B\controllerUrl('admin', true));
        $base_url = "{$admin_url}a=manageClassifiers&amp;". C\CSRF_TOKEN . "=".
        $data[C\CSRF_TOKEN]."&amp;{$context}arg=";
        $data['TABLE_TITLE'] =
            tl('manageclassifiers_element_classifiers');
        $data['ACTIVITY'] = 'manageClassifiers';
        $data['VIEW'] = $this->view;
        $data['NO_FLOAT_TABLE'] = false; ?>
        <div id='classifiers-info' ><?php
        $num_columns = $_SERVER["MOBILE"] ? 4 : 6;
        if (in_array($data['FORM_TYPE'], ['search'])) {
            $data['DISABLE_ADD_TOGGLE'] = true;
        }
        $icon_helper = $this->view->helper('iconlink');
        ?>
        <table class="admin-table">
            <tr><td class="no-border" colspan="<?=
                $num_columns ?>"><?php $this->view->helper(
                "pagingtable")->render($data);
                if ($data['FORM_TYPE'] != "editclassifier") { ?>
                    <div id='admin-form-row' class='admin-form-row'><?php
                    if ($data['FORM_TYPE'] == "search") {
                        $this->renderSearchForm($data);
                    } else {
                        $this->renderClassifierForm($data);
                    }?>
                    </div><?php
                } ?></td>
            </tr>
            <tr>
            <th><?= tl('manageclassifiers_element_label_col') ?></th>
            <?php
            if (!$_SERVER["MOBILE"]) { ?>
                <th><?=tl('manageclassifiers_element_positive_col') ?></th>
                <th><?=tl('manageclassifiers_element_negative_col') ?></th>
            <?php
            }
            ?>
            <th colspan="3"><?=tl('manageclassifiers_element_actions_col')
            ?>
            </th>
            </tr>
            <?php
            foreach ($data['classifiers'] as $label => $classifier) { ?>
            <tr>
                <td><b><?= $label ?></b><br>
                    <span class='smaller-font'><?= date("d M Y H:i:s",
                        $classifier->timestamp) ?></span>
                </td>
                <?php
                if (!$_SERVER["MOBILE"]) { ?>
                    <td><?= $classifier->positive ?></td>
                    <td><?= $classifier->negative ?></td>
                <?php
                }
                ?>
                <td><?php
                if ($classifier->finalized == Classifier::FINALIZED) {
                    e(tl('manageclassifiers_element_finalized'));
                } else if ($classifier->finalized ==
                    Classifier::UNFINALIZED) {
                    if ($classifier->total > 0) {
                        ?><a href="<?=$base_url
                            ?>finalizeclassifier&amp;name=<?=$label ?>"><?=
                            tl('manageclassifiers_element_finalize') ?></a><?php
                    } else {
                        e(tl('manageclassifiers_element_finalize'));
                    }
                } else if (
                    $classifier->finalized == Classifier::FINALIZING) {
                    ?><span class='red'><?=
                    tl('manageclassifiers_element_finalizing')?></span><?php
                }
                ?></td>
                <td><?=$icon_helper->renderLink($base_url .
                    "editclassifier&amp;name=$label", "edit", "",
                    "false", "large-padding");?></td>
                <td><?=$icon_helper->renderLink($base_url .
                    "deleteclassifier&amp;name=$label", "delete", "",
                    "false", "large-padding");?></td>
            </tr>
        <?php } // end foreach over classifiers ?>
        </table>
        </div>
        <?php
        if ($data['reload']) {
            ?>
            <script>
            var sec = 1000;
            function classifierUpdate()
            {
                window.location = "<?=$admin_url . C\CSRF_TOKEN."=".
                    $data[C\CSRF_TOKEN] ?>&a=manageClassifiers";
            }
            setTimeout(classifierUpdate, 5 * sec);
            </script>
            <?php
        }
    }
    /**
     * Used to draw the form to create a new classifier
     *
     * @param array $data data for the view in this case we just make
     *     use of the CSRF_TOKEN
     */
     public function renderClassifierForm($data)
     {
        ?>
        <form id="admin-form" method="get">
        <h2><?=tl('manageclassifiers_element_add_classifier')?> <?=
            $this->view->helper("helpbutton")->render(
                "Page Classifiers", $data[C\CSRF_TOKEN]) ?></h2>
        <input type="hidden" name="c" value="admin" >
        <input type="hidden" name="<?= C\CSRF_TOKEN ?>" value="<?=
            $data[C\CSRF_TOKEN] ?>" >
        <input type="hidden" name="a" value="manageClassifiers" >
        <input type="hidden" name="arg" value="addclassifier" >
        <div class="top-margin">
            <table class='name-table'>
            <tr><th>
            <label for="class-label"><?=
            tl('manageclassifiers_element_classifier_name') ?></label></th><td>
            <input type="text" id="class-label"
                name="name" value="" maxlength="<?= C\NAME_LEN?>"
                class="wide-field adjacent-button-field" >
            <button class="button-box"  type="submit"><?=
                tl('manageclassifiers_element_create_button') ?></button>
        </td></tr>
        </table>
        </div>
        </form>
        <?php
     }
    /**
     * Used to draw the form to search and filter through existing classifiers
     *
     * @param array $data data for the view
     */
     public function renderSearchForm($data)
     {
        $controller = "admin";
        $activity = "manageClassifiers";
        $view = $this->view;
        $title = tl('manageclassifiers_element_element_search');
        $fields = [ tl('manageclassifiers_element_classifier_name') => "name"];
        $view->helper("searchform")->render($data, $controller, $activity,
                $view, $title, $fields);
     }
}