<?php

// (c) Copyright by authors of the Tiki Wiki CMS Groupware Project
//
// All Rights Reserved. See copyright.txt for details and a complete list of authors.
// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details.
// $Id$

function wikiplugin_survey_info()
{
    return [
        'name' => tra('Survey'),
        'documentation' => 'PluginSurvey',
        'description' => tra('Embed a survey'),
        'prefs' => [ 'feature_surveys', 'wikiplugin_survey' ],
        'body' => '',
        'iconname' => 'thumbs-up',
        'introduced' => 3,
        'params' => [
            'id' => [
                'required' => true,
                'name' => tra('Id'),
                'description' => tra('Id of the survey set up by the administrator'),
                'since' => '3.0',
                'filter' => 'digits',
                'default' => '',
                'profile_reference' => 'survey',
            ],
            'page' => [
                'required' => false,
                'name' => tra('Page'),
                'description' => tra('Wiki Page to redirect the user after his vote'),
                'since' => '3.0',
                'filter' => 'text',
                'default' => 'tiki-list_surveys.php',
                'profile_reference' => 'wiki_page',
            ],
            'lang' => [
                'required' => false,
                'name' => tra('Language'),
                'description' => tra('Language for the survey'),
                'since' => '3.0',
                'filter' => 'alpha',
                'default' => '',
            ],
        ],
    ];
}

function wikiplugin_survey($data, $params)
{
    global $tiki_p_take_survey;
    if ($tiki_p_take_survey != 'y') {
        return '';
    }

    $result = '';
    if (! isset($params['id'])) {
        return '';
    }

    // Check if user has taken this survey
    global $tiki_p_admin, $tikilib, $user;
    if ($tiki_p_admin != 'y') {
        if ($tikilib->user_has_voted($user, 'survey' . $params['id'])) {
            include_once('lib/wiki-plugins/wikiplugin_remarksbox.php');
            return wikiplugin_remarksbox(
                'You cannot take this survey twice',
                ['type' => 'comment']
            );
        }
    }

    global $srvlib;
    include_once('lib/surveys/surveylib.php');
    $questions = $srvlib->list_survey_questions($params['id'], 0, -1, 'position_asc', '');

    $error_msg = '';
    if (isset($_REQUEST['surveyId']) && $_REQUEST['surveyId'] == $params['id']) {
        if (isset($_REQUEST['vote'])) {
            $srvlib->add_survey_hit($_REQUEST['surveyId']);
        }
        if (isset($_REQUEST['ans'])) {
            $srvlib->register_answers($params['id'], $questions['data'], $_REQUEST, $error_msg);
            if ($error_msg == '') {
                $location = isset($params['page']) ?
                    'tiki-index.php?page=' . urlencode($params['page'])
                    : 'tiki-list_surveys.php';
                header('Location: ' . $location);
            }
        }
    }

    $survey_info = $srvlib->get_survey($params['id']);

    $smarty = TikiLib::lib('smarty');
    $smarty->assign('surveyId', $params['id']);
    $smarty->assign('survey_info', $survey_info);
    $smarty->assign('questions', $questions['data']);
    $smarty->assign('error_msg', $error_msg);
    $smarty->assign('show_name', 'n');

    include_once('lib/smarty_tiki/function.query.php');
    $smarty->assign('form_action', smarty_function_query(['_type' => 'absolute_path'], $smarty->getEmptyInternalTemplate()));

    if (! empty($params['lang'])) {
        $result .= $smarty->fetchLang($params['lang'], 'tiki-take_survey.tpl');
    } else {
        $result .= $smarty->fetch('tiki-take_survey.tpl');
    }
    $result = '~np~' . $result . '~/np~';

    return $result;
}