<?php
/**
 * Shows the page with the FAQ record and - when available - the user comments
 * 
 * PHP Version 5.2
 *
 * The contents of this file are subject to the Mozilla Public License
 * Version 1.1 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
 * License for the specific language governing rights and limitations
 * under the License.
 *
 * @category  phpMyFAQ
 * @package   Frontend
 * @author    Thorsten Rinne <thorsten@phpmyfaq.de>
 * @author    Lars Tiedemann <larstiedemann@yahoo.de>
 * @copyright 2002-2012 phpMyFAQ Team
 * @license   http://www.mozilla.org/MPL/MPL-1.1.html Mozilla Public License Version 1.1
 * @link      http://www.phpmyfaq.de
 * @since     2002-08-27
 */

if (!defined('IS_VALID_PHPMYFAQ')) {
    header('Location: http://'.$_SERVER['HTTP_HOST'].dirname($_SERVER['SCRIPT_NAME']));
    exit();
}

$captcha     = new PMF_Captcha($db, $Language);
$oGlossary   = new PMF_Glossary();
$oLnk        = new PMF_Linkverifier();
$faqTagging  = new PMF_Tags($db, $Language);
$faqRelation = new PMF_Relation($db, $Language);
$faqRating   = new PMF_Rating();
$faqComment  = new PMF_Comment();

if (is_null($user)) {
    $user = new PMF_User_CurrentUser();
}

$faqSearchResult = new PMF_Search_Resultset($user, $faq);

$captcha->setSessionId($sids);
if (!is_null($showCaptcha)) {
    $captcha->showCaptchaImg();
    exit;
}

$currentCategory = $cat;

$recordId       = PMF_Filter::filterInput(INPUT_GET, 'id', FILTER_VALIDATE_INT);
$solutionId     = PMF_Filter::filterInput(INPUT_GET, 'solution_id', FILTER_VALIDATE_INT);
$highlight      = PMF_Filter::filterInput(INPUT_GET, 'highlight', FILTER_SANITIZE_STRIPPED);

// Set the FAQ language
$faq->setLanguage($lang);

// Get all data from the FAQ record
if (0 == $solutionId) {
    $faq->getRecord($recordId);
} else {
    $faq->getRecordBySolutionId($solutionId);
}

$faqsession->userTracking('article_view', $faq->faqRecord['id']);

$faqVisits = PMF_Visits::getInstance();
$faqVisits->logViews($faq->faqRecord['id']);

// Add Glossary entries
$question = $oGlossary->insertItemsIntoContent($faq->getRecordTitle($faq->faqRecord['id']));
$answer   = $oGlossary->insertItemsIntoContent($faq->faqRecord['content']);

// Set the path of the current category
$categoryName = $category->getPath($currentCategory, ' &raquo; ', true);

$changeLanguagePath = PMF_Link::getSystemRelativeUri() .
    sprintf(
        '?%saction=artikel&amp;cat=%d&amp;id=%d&amp;artlang=%s',
        $sids,
        $currentCategory,
        $faq->faqRecord['id'],
        $LANGCODE
    );
$oLink              = new PMF_Link($changeLanguagePath);
$oLink->itemTitle   = $faq->getRecordTitle($faq->faqRecord['id'], false);
$changeLanguagePath = $oLink->toString();

$highlight = PMF_Filter::filterInput(INPUT_GET, 'highlight', FILTER_SANITIZE_STRIPPED);
if (!is_null($highlight) && $highlight != "/" && $highlight != "<" && $highlight != ">" && PMF_String::strlen($highlight) > 3) {
    $highlight   = str_replace("'", "´", $highlight);
    $highlight   = str_replace(array('^', '.', '?', '*', '+', '{', '}', '(', ')', '[', ']'), '', $highlight);
    $highlight   = preg_quote($highlight, '/');
    $searchItems = explode(' ', $highlight);

    foreach ($searchItems as $item) {
        $question   = PMF_Utils::setHighlightedString($question, $item);
        $answer = PMF_Utils::setHighlightedString($answer, $item);
    }
}

// Hack: Apply the new SEO schema to those HTML anchors to
//       other faq records (Internal Links) added with WYSIWYG Editor:
//         href="index.php?action=artikel&cat=NNN&id=MMM&artlang=XYZ"
// Search for href attribute links
$oLnk->resetPool();
$oLnk->parse_string($answer);
$fixedContent = str_replace('href="#', 
    sprintf('href="index.php?action=artikel&amp;lang=%s&amp;cat=%d&amp;id=%d&amp;artlang=%s#',
        $LANGCODE,
        $currentCategory,
        $faq->faqRecord['id'],
        $LANGCODE),
    $answer);
$oLnk->resetPool();
$oLnk->parse_string($fixedContent); 

// Search for href attributes only
$linkArray = $oLnk->getUrlpool();
if (isset($linkArray['href'])) {
    foreach (array_unique($linkArray['href']) as $_url) {
        $xpos = strpos($_url, 'index.php?action=artikel');
        if (!($xpos === false)) {
            // Get the Faq link title
            $matches = array();
            preg_match('/id=([\d]+)/ism', $_url, $matches);
            $_id    = $matches[1];
            $_title = $faq->getRecordTitle($_id, false);
            $_link  = substr($_url, $xpos + 9);
            if (strpos($_url, '&amp;') === false) {
                $_link = str_replace('&', '&amp;', $_link);
            }
            $oLink            = new PMF_Link(PMF_Link::getSystemRelativeUri().$_link);
            $oLink->itemTitle = $oLink->tooltip = $_title;
            $newFaqPath       = $oLink->toString();
            $fixedContent     = str_replace($_url, $newFaqPath, $fixedContent);
        }
    }
}

$answer = $fixedContent; 

// Check for the languages for a faq
$arrLanguage    = PMF_Utils::languageAvailable($faq->faqRecord['id']);
$switchLanguage = '';
$check4Lang     = '';
if (count($arrLanguage) > 1) {
    foreach ($arrLanguage as $language) {
        $check4Lang .= "<option value=\"".$language."\"";
        $check4Lang .= ($lang == $language ? ' selected="selected"' : '');
        $check4Lang .= ">".$languageCodes[strtoupper($language)]."</option>\n";
    }
    $switchLanguage .= "<form action=\"".$changeLanguagePath."\" method=\"post\" style=\"display: inline;\">\n";
    $switchLanguage .= "<select name=\"artlang\" size=\"1\">\n";
    $switchLanguage .= $check4Lang;
    $switchLanguage .= "</select>\n";
    $switchLanguage .= "&nbsp;\n";
    $switchLanguage .= "<input class=\"submit\" type=\"submit\" name=\"submit\" value=\"".$PMF_LANG["msgLangaugeSubmit"]."\" />\n";
    $switchLanguage .= "</form>\n";
}

// List all faq attachments
if ($faqconfig->get('records.disableAttachments') && 'yes' == $faq->faqRecord['active']) {
    
    $attList = PMF_Attachment_Factory::fetchByRecordId($faq->faqRecord['id']);
    $outstr  = '';
    
    while (list(,$att) = each($attList)) {
        $outstr .= sprintf('<a href="%s">%s</a>, ',
            $att->buildUrl(),
            $att->getFilename());
    }
    if (count($attList) > 0) {
        $answer .= '<p>'.$PMF_LANG['msgAttachedFiles'].' '.PMF_String::substr($outstr, 0, -2).'</p>';
    }
}

// List all categories for this faq
$htmlAllCategories = '';
$multiCategories = $category->getCategoriesFromArticle($faq->faqRecord['id']);
if (count($multiCategories) > 1) {
    $htmlAllCategories .= '        <div id="article_categories">';
    $htmlAllCategories .= '            <p>' . $PMF_LANG['msgArticleCategories'] . '</p>';
    $htmlAllCategories .= '            <ul>';
    foreach ($multiCategories as $multiCat) {
        if ('' !== trim($multiCat['name'])) {
            continue;
        }
        $htmlAllCategories .= sprintf(
            "<li>%s</li>\n",
            $category->getPath($multiCat['id'], ' &raquo; ', true)
        );
    }
    $htmlAllCategories .= '            </ul>';
    $htmlAllCategories .= '    </div>';
}

// Related FAQs
$faqSearchResult->reviewResultset(
    $faqRelation->getAllRelatedById(
        $faq->faqRecord['id'],
        $faq->faqRecord['title'],
        $faq->faqRecord['keywords']
    )
);
$relatedFaqs = PMF_Helper_Search::getInstance()->renderRelatedFaqs($faqSearchResult, $faq->faqRecord['id']);

// Show link to edit the faq?
$editThisEntry = '';
if (isset($permission['editbt']) && $permission['editbt']) {
    $editThisEntry = sprintf(
        '<a href="%sadmin/index.php?action=editentry&amp;id=%d&amp;lang=%s">%s</a>',
        PMF_Link::getSystemRelativeUri('index.php'),
        $faq->faqRecord['id'],
        $lang,
        $PMF_LANG['ad_entry_edit_1'].' '.$PMF_LANG['ad_entry_edit_2']
    );
}

// Is the faq expired?
$expired = (date('YmdHis') > $faq->faqRecord['dateEnd']);

// Does the user have the right to add a comment?
if (($faq->faqRecord['active'] != 'yes') || ('n' == $faq->faqRecord['comment']) || $expired) {
    $commentMessage = $PMF_LANG['msgWriteNoComment'];
} else {
    $commentMessage = sprintf(
        "%s<a href=\"javascript:void(0);\" onclick=\"javascript:$('#commentForm').show();\">%s</a>",
        $PMF_LANG['msgYouCan'],
        $PMF_LANG['msgWriteComment']);
}

$translationUrl = sprintf(
    str_replace(
        '%',
        '%%',
        PMF_Link::getSystemRelativeUri('index.php')
    ) . 'index.php?%saction=translate&amp;cat=%s&amp;id=%d&amp;srclang=%s',
    $sids,
    $currentCategory,
    $faq->faqRecord['id'],
    $lang
);

if (!empty($switchLanguage)) {
    $tpl->processBlock(
        'writeContent',
        'switchLanguage',
        array(
            'msgChangeLanguage' => $PMF_LANG['msgLangaugeSubmit']
        )
    );
}
if (isset($permission['addtranslation']) && $permission['addtranslation']) {
    $tpl->processBlock(
        'writeContent',
        'addTranslation',
        array(
            'msgTranslate' => $PMF_LANG['msgTranslate'],
        )
    );
}

// Set the template variables
$tpl->processTemplate('writeContent', array(
    'writeRubrik'                => $categoryName,
    'solution_id'                => $faq->faqRecord['solution_id'],
    'writeThema'                 => $question,
    'writeArticleCategoryHeader' => $PMF_LANG['msgArticleCategories'],
    'writeArticleCategories'     => $htmlAllCategories,
    'writeContent'               => $answer,
    'writeTagHeader'             => $PMF_LANG['msg_tags'] . ': ',
    'writeArticleTags'           => $faqTagging->getAllLinkTagsById($faq->faqRecord['id']),
    'writeRelatedArticlesHeader' => $PMF_LANG['msg_related_articles'] . ': ',
    'writeRelatedArticles'       => $relatedFaqs,
    'writeDateMsg'               => $PMF_LANG['msgLastUpdateArticle'] . PMF_Date::format($faq->faqRecord['date']),
    'writeRevision'              => $PMF_LANG['ad_entry_revision'] . ': 1.' . $faq->faqRecord['revision_id'],
    'writeAuthor'                => $PMF_LANG['msgAuthor'] . ': ' . $faq->faqRecord['author'],
    'editThisEntry'              => $editThisEntry,
    'translationUrl'             => $translationUrl,
    'languageSelection'          => PMF_Language::selectLanguages($LANGCODE, false, $arrLanguage, 'translation'),
    'msgTranslateSubmit'         => $PMF_LANG['msgTranslateSubmit'],
    'saveVotingPATH'             => sprintf(
        str_replace(
            '%',
            '%%',
            PMF_Link::getSystemRelativeUri('index.php')
        ) . 'index.php?%saction=savevoting',
        $sids
    ),
    'saveVotingID'               => $faq->faqRecord['id'],
    'saveVotingIP'               => $_SERVER['REMOTE_ADDR'],
    'msgAverageVote'             => $PMF_LANG['msgAverageVote'],
    'printVotings'               => $faqRating->getVotingResult($recordId),
    'switchLanguage'             => $switchLanguage,
    'msgVoteUseability'          => $PMF_LANG['msgVoteUseability'],
    'msgVoteBad'                 => $PMF_LANG['msgVoteBad'],
    'msgVoteGood'                => $PMF_LANG['msgVoteGood'],
    'msgVoteSubmit'              => $PMF_LANG['msgVoteSubmit'],
    'writeCommentMsg'            => $commentMessage,
    'msgWriteComment'            => $PMF_LANG['msgWriteComment'],
    'id'                         => $faq->faqRecord['id'],
    'lang'                       => $lang,
    'msgCommentHeader'           => $PMF_LANG['msgCommentHeader'],
    'msgNewContentName'          => $PMF_LANG['msgNewContentName'],
    'msgNewContentMail'          => $PMF_LANG['msgNewContentMail'],
    'defaultContentMail'         => ($user instanceof PMF_User_CurrentUser) ? $user->getUserData('email') : '',
    'defaultContentName'         => ($user instanceof PMF_User_CurrentUser) ? $user->getUserData('display_name') : '',
    'msgYourComment'             => $PMF_LANG['msgYourComment'],
    'msgNewContentSubmit'        => $PMF_LANG['msgNewContentSubmit'],
    'captchaFieldset'            => PMF_Helper_Captcha::getInstance()->renderCaptcha(
        $captcha,
        'writecomment',
        $PMF_LANG['msgCaptcha']
    ),
    'writeComments'              => $faqComment->getComments($faq->faqRecord['id'], PMF_Comment::COMMENT_TYPE_FAQ),
    'msg_about_faq'              => $PMF_LANG['msg_about_faq']
    )
);

$tpl->includeTemplate('writeContent', 'index');