Method getPluginMethods

public static function getPluginMethods($plugin)
{
    $p = array();
    if (!isset($plugin['name'])) {
        $p[0] = false;
        return $p;
    }
    if (!isset($plugin['group'])) {
        $p[0] = false;
        return $p;
    }
    if (!isset($plugin['title'])) {
        $plugin['title'] = '';
    }
    if (!isset($plugin['selectitle'])) {
        $plugin['selectitle'] = Text::_('COM_PHOCACART_SELECT_PLUGIN');
    }
    if (!isset($plugin['returnform'])) {
        $plugin['returnform'] = 1;
    }
    $db = Factory::getDBO();
    $lang = Factory::getLanguage();
    $client = ApplicationHelper::getClientInfo(0);
    $query = 'SELECT a.extension_id , a.name, a.element, a.folder' . ' FROM #__extensions AS a' . ' WHERE a.type = ' . $db->quote('plugin') . ' AND a.enabled = 1' . ' AND a.folder = ' . $db->quote($plugin['group']);
    if ($plugin['name'] != '') {
        $query .= 'AND a.element = ' . $db->quote($plugin['name']);
    }
    $query .= ' ORDER BY a.ordering';
    $db->setQuery($query);
    $plugins = $db->loadObjectList();
    if ($plugin['name'] == '') {
        $i = 0;
        $p[0]['text'] = '- ' . $plugin['selecttitle'] . ' -';
        $p[0]['value'] = '';
    } else {
        $i = -1;
    }
    if (!empty($plugins)) {
        foreach ($plugins as $k => $v) {
            // Load the core and/or local language file(s).
            $folder = $plugin['group'];
            $element = $v->element;
            $lang->load('plg_' . $folder . '_' . $element, JPATH_ADMINISTRATOR, null, false, false) || $lang->load('plg_' . $folder . '_' . $element, $client->path . '/plugins/' . $folder . '/' . $element, null, false, false) || $lang->load('plg_' . $folder . '_' . $element, JPATH_ADMINISTRATOR, $lang->getDefault(), false, false) || $lang->load('plg_' . $folder . '_' . $element, $client->path . '/plugins/' . $folder . '/' . $element, $lang->getDefault(), false, false);
            $i++;
            $name = Text::_(strtoupper($v->name));
            $name = str_replace('Plugin', '', $name);
            $name = str_replace($plugin['title'] . ' -', '', $name);
            $p[$i]['text'] = Text::_($name);
            $p[$i]['value'] = $v->element;
        }
    }
    if ($plugin['returnform'] == 0) {
        return $plugins;
    }
    if ($plugin['name'] != '' && !empty($p[0])) {
        return $p[0];
    }
    return $p;
}