<?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_preference_info()
{
    return [
        'name' => tra('Preference'),
        'documentation' => 'PluginPreference',
        'description' => tra('Allows to edit a permission by anyone that has permissions to see the current page'),
        'prefs' => ['wikiplugin_preference'],
        'extraparams' => true,
        'iconname' => 'settings',
        'validate' => 'all',
        'params' => [
            'name' => [
                'required' => true,
                'name' => tra('Name of the preference'),
                'description' => tra('Preferences to be edited(separated by ,).'),
                'filter' => 'striptags',
                'type' => 'list',
            ],
            'currentpage' => [
                'required' => true,
                'name' => tra('Current Page'),
                'description' => tra('Page\'s name where this plugin will be shown.'),
            ],
        ],
    ];
}

function wikiplugin_preference($data, $params)
{
    global $user;

    // Prevent anonymous users to use this plugin
    if (! $user or $user === 'anonymous') {
        return;
    }

    $wikilib = TikiLib::lib('wiki');
    $logslib = TikiLib::lib('logs');
    $prefslib = TikiLib::lib('prefs');

    $name = $params['name'];
    $currentpage = $params['currentpage'];
    $pageSlug = $wikilib->get_slug_by_page($currentpage);

    if (!isset($_GET['page']) || $_GET['page'] != $pageSlug || ! $name) {
        return;
    }

    $names = array_unique(explode(',', $name)); //prevent duplicated preferences
    $names = array_map(function ($prefName) {
        return trim($prefName);
    }, $names);

    $values = array_filter(array_combine(
        array_values($names),
        array_map(function ($name) use ($prefslib) {
            $prefDetail = $prefslib->getPreference($name);
            if (empty($_POST[$name]) && $prefDetail['type'] == 'flag') {
                return 'n';
            }
            return $_POST[$name];
        }, $names)
    ), function ($val) {
        return isset($val)  ;
    }); // prevent un matched preferences
    $lm_preference = array_filter($_POST['lm_preference'], function ($v) use ($values) {
        return array_key_exists($v, $values) || in_array($v, $_POST['lm_reset']);
    });

    if (isset($lm_preference)) { //edit
        $changes = $prefslib->applyChanges($lm_preference, array_merge($values, ['lm_reset' => $_POST['lm_reset']]));
        if (count($changes) > 0) {
            foreach ($changes as $key => $val) {
                if (isset($_POST['lm_reset']) && in_array($key, $_POST['lm_reset'])) {
                    add_feedback($key, tr('%0 reset', $key), 4);
                    $logslib->add_action('feature', $key, 'system', 'reset');
                } else {
                    add_feedback($key, tr('%0 set', $key), 1, 1);
                    $logslib->add_action('feature', $key, 'system', (is_array($val['old']) ? implode(',', $val['old']) : $val['old']) . '=>' . (is_array($val['new']) ? implode(',', $val['new']) : $val['new']));
                }
            }
        }
    }

    $url = $wikilib->sefurl($_GET['page']);

    $smarty = TikiLib::lib('smarty');
    $smarty->assign('names', $names);
    $smarty->assign('url', $url);
    $html = $smarty->fetch('wiki-plugins/wikiplugin_preference.tpl');
    $html = preg_replace('/(\v|\s)+/', ' ', $html);
    return '~np~' . html_entity_decode($html, ENT_HTML5, 'utf-8') . '~/np~';
}

if (! function_exists('add_feedback')) {
    function add_feedback($name, $message, $st, $num = null)
    {
        TikiLib::lib('prefs')->addRecent($name);

        Feedback::add(['num' => $num,
            'mes' => $message,
            'st' => $st,
            'name' => $name,
            'tpl' => 'pref',]);
    }
}