<?php

/**
 * @copyright (C) 2013 iJoomla, Inc. - All rights reserved.
 * @license GNU General Public License, version 2 (http://www.gnu.org/licenses/gpl-2.0.html)
 * @author iJoomla.com <webmaster@ijoomla.com>
 * @url https://www.jomsocial.com/license-agreement
 * The PHP code portions are distributed under the GPL license. If not otherwise stated, all images, manuals, cascading style sheets, and included JavaScript *are NOT GPL, and are released under the IJOOMLA Proprietary Use License v1.0
 * More info at https://www.jomsocial.com/license-agreement
 */

use Joomla\CMS\Application\ApplicationHelper;
use Joomla\CMS\Factory;
use Joomla\CMS\Table\Table;
use Joomla\Filesystem\File;

defined('_JEXEC') or die('Restricted access');


define('C_ASPECT_LANDSCAPE_RATIO', 1.3125);

class CPhotos
{

    const ASPECT_PORTRAIT = 1;
    const ASPECT_LANDSCAPE = 2;
    const ASPECT_SQUARE = 0;
    const ASPECT_LANDSCAPE_RATIO = 1.31;
    const ASPECT_PORTRAIT_RATIO = 0.76;
    const ASPECT_SQUARE_RATIO = 1.00;
    const ACTIVITY_SUMMARY_ITEM_COUNT = 5;

    /**
     * Return HTML for acitivity stream
     * @param  JTableActiities $act activity object
     * @return string      html formatted output
     */
    static public function getActivityContentHTML($act)
    {
        // Ok, the activity could be an upload OR a wall comment. In the future, the content should
        // indicate which is which

        $html = '';

        //$param 	 = new CParameter( $act->params );
        $action = $act->params->get('action', false);
        $photoid = $act->params->get('photoid', 0);
        $url = $act->params->get('url', false);
        $act->originalTitle = $act->title;
        $act->title = CActivities::format($act->title, $act->params->get('mood', null));

        if ($action == 'wall') {
            // unfortunately, wall post can also have 'photo' as its $act->apps. If the photo id is availble
            // for (newer activity stream, inside the param), we will show the photo snippet as well. Otherwise
            // just print out the wall content
            // Version 1.6 onwards, $params will contain photoid information
            // older version would have #photoid in the $title, since we link it to the photo

            $photoid = $param->get('photoid', false);

            if ($photoid) {
                $photo = Table::getInstance('Photo', 'CTable');
                $photo->load($act->cid);
                $helper = new CAlbumsHelper($photo->albumid);

                if ($helper->showActivity()) {
                    $tmpl = new CTemplate();

                    return $tmpl->set('url', $url)
                        ->set('photo', $photo)
                        ->set('param', $param)
                        ->set('act', $act)
                        ->fetch('activity.photos.wall');
                }
            }

            return '';
        } elseif ($action == 'upload' && $photoid > 0) {

            $photoModel = CFactory::getModel('photos');
            // Album object should have been created in the activities library
            $album = $act->album;
            $albumsHelper = new CAlbumsHelper($album);

            if ($albumsHelper->isPublic()) {
                // If content has link to image, we could assume it is "upload photo" action
                // since old content add this automatically.
                // The $act->cid will be the album id, Retrive the recent photos uploaded
                // If $act->activities has data, that means this is an aggregated content
                // display some of them
                $db = Factory::getDBO();

                // If count is more than 1, get the last few photos, otherwise
                // the photo might have a custom message along with it. Show that single photo
                $count = $act->params->get('count', 1);
                $photosId = $act->params->get('photosId', null);
                $batchCount = $act->params->get('batchcount', $count);
                if (is_null($photosId)) {

                    if ($count == 1) {
                        $album->id = (empty($album->id)) ? 0 : $album->id;
                        $sql = "SELECT * FROM #__community_photos WHERE ".$db->quoteName('albumid')."=" . $album->id
                            . " AND ".$db->quoteName('id')."=" . $photoid
                            . " AND ".$db->quoteName('status')." != 'temp'";
                        $db->setQuery($sql);
                        $result = $db->loadObjectList();
                    } else {
                        $album->id = (empty($album->id)) ? 0 : $album->id;
                        $sql = "SELECT * FROM #__community_photos WHERE ".$db->quoteName('albumid')."=" . $album->id
                            . " AND ".$db->quoteName('status')." != 'temp'"
                            . " ORDER BY ".$db->quoteName('id')." DESC LIMIT 0, 5";
                        $db->setQuery($sql);
                        $result = $db->loadObjectList();
                    }
                } else {
                    $result = explode(',', $photosId);
                }

                $photos = array();

                if (is_array($result) && count($result) > 0) {
                    foreach ($result as $row) {
                        $photo = Table::getInstance('Photo', 'CTable');
                        if (is_null($photosId)) {
                            $photo->bind($row);
                        } else {
                            $photo->load($row);
                        }

                        if ($photo->published && $photo->status != 'delete' && $photo->id) {
                            $photos[] = $photo;
                        }

                        if (!$photo->published || $photo->status == 'delete') {
                            $batchCount--;
                        }
                    }

                    foreach ($photos as $key => $data) {
                        if ($data->id == $photoid) {
                            unset($photos[$key]); /* remove this photo */
                            array_push($photos, $data); /* move it to beginning of array */
                        }
                    }

                    $photos = array_slice($photos, 0, 5); // limit to 5 photos only

                    if (empty($act->activities)) {
                        $acts[] = $act;
                    } else {
                        $acts = $act->activities;
                    }

                    $tmpl = new CTemplate();

                    if ($batchCount == 0) {
                        $batchCount = 1;
                    }

                    return $tmpl->set('album', $album)
                        ->set('acts', $acts)
                        ->set('photos', $photos)
                        ->set('count', $count)
                        ->set('batchCount', $batchCount)
                        ->set('stream', $act->params->get('stream', false))
                        ->fetch('stream/photo-upload');
                }
            }
        }

        return $html;
    }

    /**
     * Return the given photo aspect ratio
     */
    static public function getPhotoAspectRatio($srcPath)
    {
        /*
          $size = CImageHelper::getSize($srcPath);
          $ratio = ($size->width / $size->height);

          if( $ratio >  CPhotos::ASPECT_LANDSCAPE_RATIO)
          return CPhotos::ASPECT_LANDSCAPE;

          if( $ratio <  CPhotos::ASPECT_PORTRAIT_RATIO)
          return CPhotos::ASPECT_PORTRAIT;
         */
        // Only allow square thumbnails for now
        return CPhotos::ASPECT_SQUARE;
    }

    /**
     * Generate photo thumbnail
     */
    static public function generateThumbnail($srcPath, $destPath, $destType)
    {
        $aspect = CPhotos::getPhotoAspectRatio($srcPath);
        list($currentWidth, $currentHeight) = getimagesize($srcPath);

        $origWidth = $currentWidth;
        $origHeight = $currentHeight;
        $destWidth = COMMUNITY_PHOTO_THUMBNAIL_SIZE;
        $destHeight = COMMUNITY_PHOTO_THUMBNAIL_SIZE;
        $sourceX = 0;
        $sourceY = 0;

        switch ($aspect) {
            /*
              case CPhotos::ASPECT_PORTRAIT:
              $currentHeight	= $currentWidth / CPhotos::ASPECT_PORTRAIT_RATIO;

              $sourceY		= intval( ( $origHeight - $currentHeight ) / 2 );
              $sourceX		= 0;

              $destHeight = 84;
              break;

              case CPhotos::ASPECT_LANDSCAPE:
              $currentWidth		= $currentHeight * CPhotos::ASPECT_LANDSCAPE_RATIO;
              $sourceX			= intval( ( $origWidth - $currentWidth ) / 2 );
              $sourceY 			= 0;

              $destWidth = 84;
              break;
             */
            default:
        }

        //CImageHelper::resize( $srcPath , $destPath , $destType , $destWidth , $destHeight , $sourceX , $sourceY , $currentWidth , $currentHeight);
        CImageHelper::createThumb($srcPath, $destPath, $destType, $destWidth, $destHeight);
    }

    /**
     * Given the original source path
     */
    public function getStorePath($srcPath)
    {

    }

    public function saveAvatarFromURL($url)
    {
        $tmpPath = JPATH_ROOT . '/images';
        $my = CFactory::getUser();

        // Need to extract the non-https version since it will cause
        // certificate issue
        $avatarUrl = str_replace('https://', 'http://', $url);

        $source = CRemoteHelper::getContent($url, true);
        is_file($tmpPath, $source);

        // @todo: configurable width?
        $imageMaxWidth = 160;

        // Get a hash for the file name.
        $fileName = ApplicationHelper::getHash($my->getDisplayName() . time());
        $hashFileName = CStringHelper::substr($fileName, 0, 24);

        $extension = CStringHelper::substr($url, CStringHelper::strrpos($url, '.'));

        $type = 'image/jpg';

        if ($extension == '.png') {
            $type = 'image/png';
        }

        if ($extension == '.gif') {
            $type = 'image/gif';
        }

        //@todo: configurable path for avatar storage?
        $config = CFactory::getConfig();
        $storage = JPATH_ROOT . '/' . $config->getString('imagefolder') . '/avatar';
        $storageImage = $storage . '/' . $hashFileName . $extension;
        $storageThumbnail = $storage . '/thumb_' . $hashFileName . $extension;
        $image = $config->getString('imagefolder') . '/avatar/' . $hashFileName . $extension;
        $thumbnail = $config->getString('imagefolder') . '/avatar/' . 'thumb_' . $hashFileName . $extension;

        $userModel = CFactory::getModel('user');

        // Only resize when the width exceeds the max.
        CImageHelper::resizeProportional($tmpPath, $storageImage, $type, $imageMaxWidth);
        CImageHelper::createThumb($tmpPath, $storageThumbnail, $type);

        $removeOldImage = false;

        $userModel->setImage($my->id, $image, 'avatar', $removeOldImage);
        $userModel->setImage($my->id, $thumbnail, 'thumb', $removeOldImage);

        // Update the user object so that the profile picture gets updated.
        $my->set('_avatar', $image);
        $my->set('_thumb', $thumbnail);

        return true;
    }

}