<?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_htmlfeedlink_info()
{
    return [
        'name' => tra('HTML Feed Link'),
        'documentation' => 'PluginHtmlFeedlink',
        'description' => tra('Receive and display content from another site sent using PluginHTMLFeed'),
        'prefs' => [ 'feature_wiki', 'wikiplugin_htmlfeedlink', 'feature_htmlfeed' ],
        'body' => tra('Initial Value'),
        'iconname' => 'link',
        'filter' => 'rawhtml_unsafe',
        'tags' => [ 'basic' ],
        'introduced' => 9,
        'params' => [
            'feed' => [
                'required' => false,
                'name' => tra('Feed Location'),
                'description' => tra(''),
                'since' => '9.0',
            ],
            'name' => [
                'required' => false,
                'name' => tra('Content Name'),
                'description' => tra(''),
                'since' => '9.0',
            ],
            'style' => [
                'required' => false,
                'name' => tra('Content Style'),
                'since' => '9.0',
                'options' => [
                    ['text' => tra('None'), 'value' => ''],
                    ['text' => tra('Highlight'), 'value' => 'highlight'],
                    ['text' => tra('Asterisk'), 'value' => 'asterisk'],
                ],
            ],
            'type' => [
                'required' => false,
                'name' => tra('HTML Feed Link Type'),
                'since' => '9.0',
                'default' => 'replace',
                'options' => [
                    ['text' => tra('Replace'), 'value' => 'replace'],
                    ['text' => tra('Backlink'), 'value' => 'backlink'],
                    ['text' => tra('Popup'), 'value' => 'popup'],
                    ['text' => tra('Hover'), 'value' => 'hover'],
                ],
            ],
            'moderate' => [
                'required' => false,
                'name' => tra('Moderated?'),
                'since' => '9.0',
                'default' => 'n',
                'options' => [
                    ['text' => '', 'value' => ''],
                    ['text' => tra('Yes'), 'value' => 'y'],
                    ['text' => tra('No'), 'value' => 'n']
                ],
            ],
            'date' => [
                'required' => false,
                'name' => tra('Date'),
                'description' => tr('Date of last accepted HTML item, not used if not moderated'),
                'since' => '9.0',
                'default' => '',
            ],
        ],
    ];
}

function wikiplugin_htmlfeedlink($data, $params)
{
    global $page, $caching;
    $headerlib = TikiLib::lib('header');
    $tikilib = TikiLib::lib('tiki');

    static $htmlFeedLinkI = 0;
    ++$htmlFeedLinkI;

    $params = array_merge(
        [
            "feed" => "",
            "name" => "",
            "type" => "replace",
            "moderate" => "y",
            "style" => "",
            "date" => ""
        ],
        $params
    );

    extract($params, EXTR_SKIP);

    if (empty($feed)) {
        return $data;
    }
    if (isset($caching)) {
        return $data; //caching is running, if no return, causes recursive parsing
    }

    $htmlFeed = new Feed_Html_Receive($feed);

    $headerlib->add_jq_onready(
        "if (!$.fn.htmlFeedPopup) {
            $.fn.htmlFeedPopup = function(s) {
                $(this).each(function() {
                    $(this)
                        .css('cursor', 'pointer')
                        .hover(function(){
                            $(this).css('background-color', 'yellow');
                        },function(){
                            $(this).css('background-color', '');
                        })
                        .click(function() {
                            $('<div>' +
                                s.description +
                            '</div>')
                                .dialog({
                                    title: s.name
                                });
                        });
                });
                return this;
            };
        }

        $(document)
            .off('plugin_htmlfeedlink_ready')
            .on('plugin_htmlfeedlink_ready', function(e) {
                var name = $(e.container).find('#param_name input:first');
                name.hide();
                var nameSelect = $('<select>')
                    .insertAfter(name)
                    .change(function() {
                        name.val($(this).val()).change();
                    });

                var items = " . json_encode($htmlFeed->listItemNames()) . ";

                for(var i = 0; i < items.length; i++) {
                    $('<option />')
                        .val(items[i])
                        .text(items[i])
                        .appendTo(nameSelect);
                }
                nameSelect.val(name.val()).change();
            });

        $('.revision').click(function() {
            $.getJSON('tiki-html_feed.php', {
                feed: $(this).data('feed'),
                name: $(this).data('name')
            }, function(link) {
                $('<div />')
                    .html(link.description)
                    .dialog({
                        title: link.name,
                        buttons: [{
                            text: 'Accept Update',
                            click: function () {
                                $('#form$htmlFeedLinkI [name=\'content\']').val('~np~' + link.description + '~/np~')
                                $('#form$htmlFeedLinkI').submit();
                            }
                        }]
                    });
            });
        });"
    );

    $item = $htmlFeed->getItem($name);
    $same = $date == $item->date;

    if (! empty($item->name)) {
        $name = $item->name;
        $date = $item->date;
        switch ($type) {
            case "":
            case "replace":
                $data = "~np~" . $item->data . "~/np~";
                //moderate isn't yet working
                if ($moderate == 'y') {
                    if ($same == false) {
                        $data .= "~np~<img
                            src='img/icons/flag_blue.png'
                            class='revision'
                            title='Revision Available, click to see'
                            style='cursor: pointer;'
                            data-feed='" . urlencode($feed) . "'
                            data-name='" . urlencode($name) . "'
                            />
                            <form id='form$htmlFeedLinkI' method='post' action='tiki-wikiplugin_edit.php' style='display: none;'>
                                <input type='hidden' name='page' value='$page'/>
                                <input type='hidden' name='index' value='$htmlFeedLinkI'/>
                                <input type='hidden' name='type' value='htmlfeedlink'/>
                                <input type='hidden' name='params[name]' value='" . htmlspecialchars($name) . "'/>
                                <input type='hidden' name='params[feed]' value='" . htmlspecialchars($feed) . "'/>
                                <input type='hidden' name='params[type]' value='" . htmlspecialchars($type) . "'/>
                                <input type='hidden' name='params[style]' value='" . htmlspecialchars($style) . "'/>
                                <input type='hidden' name='params[date]' value='" . htmlspecialchars($date) . "'/>
                                <input type='hidden' name='content' value='" . htmlspecialchars($data) . "'/>
                            </form>
                            ~/np~";
                    } else {
                            $data = "~np~" . $item->description . "~/np~";
                    }
                } else {
                    $data = $item->description;
                }
                break;
            case "backlink":
                $data = "<a href='$item->url'>" . $data . "</a>";
                break;
            case "popup":
                $headerlib->add_jq_onready(
                    "$('#backlink')
                        .htmlFeedPopup(" . $link . ");"
                );
                break;
            case "hover":
                break;
        }

        $link = json_encode($link);
    }

    $result = "<span id='htmlFeedLink' title='$name'>" . $data . "</span>";

    switch ($style) {
        case "highlight":
            $headerlib->add_jq_onready(
                "$('#htmlFeedLink$htmlFeedLinkI')
                    .css('border', '1px solid red');"
            );
            break;
        case "asterisk":
            $result = "<sup>*</sup>" . $result;
            break;
    }

    $archives = "";
    foreach ($htmlFeed->getItemFromDates($item->name) as $archive) {
        $archives .= "<a href='tiki-html_feed.php?feed=" . $feed .
            "&name=" . urlencode($archive->name) .
            "&date=" . urlencode($archive->date) . "'>" . htmlspecialchars($archive->name) . " " . htmlspecialchars($archive->date) . "</a><br />";
    }

    if (strlen($archives) > 0) {
        $result .= "~np~<img src='img/icons/disk_multiple.png' id='viewArchives$htmlFeedLinkI' title='View Archives' name='" . htmlspecialchars($archive->name) . "' style='cursor: pointer;' />
        <div id='archives$htmlFeedLinkI' style='display: none;' >" . $archives . "</div>~/np~";
        $headerlib->add_jq_onready(
            <<<JQ
            $('#viewArchives$htmlFeedLinkI').click(function() {
                $('#archives$htmlFeedLinkI')
                    .dialog({title: "Revisions for " + $(this).attr('name')})
                    .find('a').click(function() {
                        $.getJSON($(this).attr('href'), function(item) {
                            $('<div>')
                                .html(item.description)
                                .dialog();
                        });
                        return false;
                    });
            });
JQ
        );
    }

    return  $result;
}