<?php

function PromoteTopic()
{
    global $topic, $board, $smcFunc, $context, $modSettings, $boarddir, $boardurl, $site_dir, $source_dir, $settings;

    if (empty($topic))
        fatal_lang_error('not_a_topic', false);

    if (!allowedTo('np_can_promote'))
        redirectext('topic=' . $topic . '.' . $_REQUEST['start']);

    $context['promote_img_dir'] = $site_dir . '/NewsImages/';
    $context['promote_img_url'] = $site_url . '/NewsImages/';

    // First lets check for any previous data
    loadPromoted($shortest, $short, $smallPic, $pic, $promoted);

    // Maybe we are demoting? If so we keep all data and just flag it as demoted
    if (!empty($promoted) && isset($_POST['demote']))
    {
        $smcFunc['db_query']('', '
            UPDATE {db_prefix}news
            SET promoted = 0
            WHERE id_topic = {int:topic}',
            array(
                'topic' => $topic,
            )
        );
        logAction('demoted', array('topic' => $topic, 'board' => $board));
        $context['demoted'] = true;
        loadPromoted($shortest, $short, $smallPic, $pic, $promoted);
    }

    // Validate submitted data
    $context['errors'] = array();
    if (isset($_POST['submit']) || isset($_POST['preview']))
    {
        if (empty($_POST['short']))
            $context['errors']['short'] = 'You need to fill out the blurb field';
        if (empty($_POST['shortest']))
            $context['errors']['shortest'] = 'You need to fill out the short blurb field';

        // Attempt to upload the large pic
        if (isset($_FILES['pic']) && !empty($_FILES['pic']['tmp_name']))
        {
            if (isset($_SESSION['pic']))
            {
                unlink($context['promote_img_dir'] . $_SESSION['pic']);
                unset($_SESSION['pic']);
            }
            else if (!empty($pic['filename']))
                unlink($context['promote_img_dir'] . $pic['filename']);

            $pic = uploadPic($_FILES['pic']);

            if (empty($pic['error']))
                $_SESSION['pic'] = $pic['filename'];
            else
                $context['errors']['pic'] = $pic['error'];
        }
        elseif (isset($_SESSION['pic']))
            $pic['filename'] = $_SESSION['pic'];

        if (empty($pic))
            $context['errors']['pic'] = 'You need to upload the larget image!';

        if (isset($_POST['submit']))
            unset($_SESSION['pic']);

        // Now the smaller pic
        if (isset($_FILES['smallpic']) && !empty($_FILES['smallpic']['tmp_name']))
        {
            if (isset($_SESSION['smallpic']))
            {
                unlink($context['promote_img_dir'] . $_SESSION['smallpic']);
                unset($_SESSION['smallpic']);
            }
            else if (!empty($smallPic['filename']))
                unlink($context['promote_img_dir'] . $smallPic['filename']);

            $smallPic = uploadPic($_FILES['smallpic']);

            if (empty($smallPic['error']))
                $_SESSION['smallPic'] = $smallPic['filename'];
            else
                $context['errors']['smallpic'] = $smallPic['error'];
        }
        elseif (isset($_SESSION['pic']))
            $smallPic['filename'] = $_SESSION['pic'];

        if (empty($smallPic))
            $context['errors']['smallpic'] = 'You need to upload the smaller image!';

        if (isset($_POST['submit']))
            unset($_SESSION['smallpic']);
    }

    $context['promote_data'] = array(
        'short' => isset($_POST['short']) ? $_POST['short'] : (!empty($short) ? $short : ''),
        'shortest' => isset($_POST['shortest']) ? $_POST['shortest'] : (!empty($shortest) ? $shortest : ''),
        'pic' => isset($pic['filename']) ? $pic['filename'] : null,
        'smallpic' => isset($smallPic['filename']) ? $smallPic['filename'] : null,
        'promoted' => !empty($promoted),
        'updating' => !empty($shortest),
    );

    // Get the topics subject for the link tree
    $request = $smcFunc['db_query']('', '
        SELECT m.subject
        FROM {db_prefix}messages AS m
            INNER JOIN {db_prefix}topics AS t ON (t.id_topic = m.id_topic)
        WHERE t.id_topic = {int:topic}',
        array(
            'topic' => $topic,
        )
    );
    list ($subject) = $smcFunc['db_fetch_row']($request);
    $smcFunc['db_free_result']($request);

    $context['page_title'] = 'Promoting Topic';
    $context['linktree'] = array();
    loadTemplate('Promote');
    loadTemplate('Main');
    $context['sub_template'] = 'promote';
    $_GET['news'] = 0;
    $noPost = array(
        'id' => null,
        'subject' => null,
    );
    $context['news_posts'] = $context['latest_posts'] = array($noPost, $noPost, $noPost);
    $request = $smcFunc['db_query']('', '
        SELECT
            m.icon, m.subject, m.body, IFNULL(mem.real_name, m.poster_name) AS poster_name, m.poster_time,
            t.num_replies, t.id_topic, m.id_member, m.smileys_enabled, m.id_msg, t.locked, m.id_board,
            n.shortest, n.short, n.pic
        FROM {db_prefix}topics AS t
            INNER JOIN {db_prefix}messages AS m ON (m.id_msg = t.id_first_msg)
            LEFT JOIN {db_prefix}news AS n ON (n.id_topic = t.id_topic)
            LEFT JOIN {db_prefix}members AS mem ON (mem.id_member = m.id_member)
        WHERE t.id_topic = {int:topic}',
        array('topic' => $topic)
    );
    $row = $smcFunc['db_fetch_assoc']($request);
    $smcFunc['db_free_result']($request);
    $context['news_posts'][0] = array(
        'id' => $topic,
        'short' => '<em>null</em>',
        'shortest' => '<em>null</em>',
        'subject' => $row['subject'],
        'href' => '#',
        'icon' => '<img class="icon" src="' . $settings['images_url'] . '/post/' . $row['icon'] . '.gif" align="middle" alt="' . $row['icon'] . '" border="0" />',
        'body' => $row['body'],
        'shortbody' => $row['body'],
        'poster' => array(
            'id' => $row['id_member'],
            'name' => $row['poster_name'],
            'href' => !empty($row['id_member']) ? '#' : '',
            'link' => !empty($row['id_member']) ? '<a href="#">' . $row['poster_name'] . '</a>' : $row['poster_name']
        ),
        'link' => '<a href="#">' . $row['num_replies'] . ' ' . ($row['num_replies'] == 1 ? 'Comment' : 'Comments') . '</a>',
        'new_comment' => !empty($row['locked']) ? '' : '<a href="#">Write Comment</a>',
        'time' => timeformat($row['poster_time']),
    	'timestamp' => forum_time(true, $row['poster_time']),
    );

    if (isset($_POST['submit']) && empty($context['errors']))
    {
        promote();
        $context['promoted'] = true;
    }
}

function loadPromoted(&$shortest, &$short, &$smallPic, &$pic, &$promoted)
{
    global $smcFunc, $topic;

    // First lets check for any previous data
    $request = $smcFunc['db_query']('', '
        SELECT shortest, short, pic, promoted
        FROM {db_prefix}news
        WHERE id_topic = {int:topic}',
        array(
            'topic' => $topic,
        )
    );
    list ($shortest, $short, $pic['filename'], $promoted) = $smcFunc['db_fetch_row']($request);
    $smcFunc['db_free_result']($request);
}

function promote()
{
    global $topic, $board, $smcFunc, $context;

    // for easier use
    $data = $context['promote_data'];
    $data['topic'] = $topic;

    if ($data['updating'])
    {
        $smcFunc['db_query']('', '
            UPDATE {db_prefix}news
            SET short = {string:short},
                shortest = {string:shortest},
                pic = {string:pic},
                promoted = 1
            WHERE id_topic = {int:topic}',
            $data
        );
    }
    else
    {
        $smcFunc['db_insert']('',
            '{db_prefix}news',
            array('short' => 'string', 'shortest' => 'string', 'pic' => 'string', 'id_topic' => 'int' ),
            array($data['short'], $data['shortest'], $data['pic'], $topic),
            array('id_topic')
        );
    }

    logAction('promoted', array('topic' => $topic, 'board' => $board));
}

function uploadPic($file)
{
    global $context, $topic;

    if (!is_dir($context['promote_img_dir']))
    {
        if (!mkdir($context['promote_img_dir'], 0755))
            return array('error' => 'Failed to create directory. Line: ' . _LINE__);
        if (!chmod($context['promote_img_dir'], 0755))
            return array('error' => 'Failed to chmod directory. Line: ' . _LINE__);
    }

    if (!is_uploaded_file($file['tmp_name']))
        return array('error' => 'File uploading failed. Line: ' . __LINE__);


    $extension = substr(strtolower(strrchr($file['name'], '.')), 1);
    $filename = 'news_' . $topic . '.' . $extension;

    if (!in_array($extension, array('jpg', 'jpeg', 'gif', 'png', 'bmp')))
        return array('error' => 'The image type you are trying to upload is invalid');

    $im = getimagesize($file['tmp_name']);

    if ($im[0] != 346 || $im[1] != 182)
        return array('error' => 'The image does not meet the correct size requirements');



    switch($im['mime'])
    {
        case 'image/jpeg':
            $img = imagecreatefromjpeg($file['tmp_name']);
            if(!imagejpeg($img, $context['promote_img_dir'] . $filename))
                return array('error' => 'Error with saving the image. Line: ' . __LINE__);
        break;
        case 'image/gif':
            $img = imagecreatefromgif($file['tmp_name']);
            if(!imagegif($img, $context['promote_img_dir'] . $filename))
                return array('error' => 'Error with saving the image. Line: ' . __LINE__);
        break;
        case 'image/png':
            $img = imagecreatefrompng($file['tmp_name']);
            if(!imagepng($img, $context['promote_img_dir'] . $filename))
                return array('error' => 'Error with saving the image. Line: ' . __LINE__);
        break;
        case 'image/wbmp': case 'image/x-ms-bmp':
            $img = imagecreatefromwbmp($file['tmp_name']);
            if(!imagewbmp($img, $context['promote_img_dir'] . $filename))
                return array('error' => 'Error with saving the image. Line: ' . __LINE__);
        break;
        default:
            return array('error' => 'Error with saving the image. Line:' . __LINE__);
        break;
    }

    if (!chmod($context['promote_img_dir'] . $filename, 0777))
		return array('error' => 'Error with perms. Line: ' . __LINE__);

	return array('filename' => $filename);
}