<?php

/**

* RSGallery2 random images module:

* Shows random images from the Joomla extension RSGallery2 (www.rsgallery2.org).

* @copyright (C) 2012-2019 RSGallery2 Team

* @license http://www.gnu.org/copyleft/gpl.html GNU/GPL

* @version 4.0.0

**/

// ToDo: Regard user privacy: show only images for gallery owner or common released ....

defined('_JEXEC') or die();

// Returns lists of galleries and images

require_once dirname(__FILE__) . '/Rsg2DbSelections.php';

// Returns links to be used in Jroute() to images views inside galleries

require_once dirname(__FILE__) . '/Rsg2ImageRoutes.php';

// Initialise RSGallery2 and other variables

//require_once(JPATH_BASE.'/administrator/components/com_rsgallery2/init.rsgallery2.php');

require_once(JPATH_ADMINISTRATOR.'/components/com_rsgallery2/init.rsgallery2.php');

//$database = &JFactory::getDbo();

// Add styling

$document = JFactory::getDocument();

$url = JURI::base().'modules/mod_rsgallery2_random_images/css/mod_rsgallery2_random_images.css';

$document->addStyleSheet($url);

global $rsgConfig;

//--- Parameters --------------------------------------------------------------

// Number of random images to display = number of rows times the number of columns

$countRows = (int) $params->get('countrows', '1');

$countColumns = (int) $params->get('countcolumns', '1');

$count = $countRows * $countColumns;

// Select one or more galleries and set if their subgalleries (children) should be included

$galleryIds = $params->get('galleryids', '0'); //string, e.g. 3,8,42

$includeChildren = $params->get('includechildren', '0');

// Display type of image to show: thumb (0), display (1), original (2)

$displayType = (int) $params->get('displaytype', '0');

// CSS height and/or width attribute for the img and the div element (0=no attribute)

$imageHeight = (int) $params->get('imageheight', '0');

$imageWidth = (int) $params->get('imagewidth', '0');

$divHeight = (int) $params->get('divheight', '0');

$divWidth = (int) $params->get('divwidth', '0');

// ... for the div with class mod_rsgallery2_random_galleries_name

$divNameHeight = (int) $params->get('divnameheight', '0');

//$divNameWidth = (int) $params->get('divnamewidth', '0'); // The width setting of the class mod_rsgallery2_random_galleries_attibute would overrule this, so makes no sense to do this now?

// Display the gallery name

$displayName = $params->get('displayname', '0');

// Display the date and its format

$displayDate = $params->get('displaydate', '0');

$dateFormat = $params->get('dateformat', 'd-m-Y');

$ImageLinkType = $params->get('imagelinktype', '0');

$layout = $params->get('layout', 'default');

//--- Collect CSS styling from parameters -------------------------------

// Get CSS image height/width attributes

$imgAttributes="";

if ($imageHeight > 0) $imgAttributes .= ' height="'.$imageHeight.'px"';

if ($imageWidth > 0) $imgAttributes .= ' width="'.$imageWidth.'px"';

// Get CSS image height/width attributes

$divAttributes="";

if (($divHeight) or ($divWidth)) {

$divAttributes .= 'style=overflow:hidden;';

if ($divHeight > 0) $divAttributes .= 'height:'.$divHeight.'px;';

if ($divWidth > 0) $divAttributes .= 'width:'.$divWidth.'px;';

$divAttributes .= '"';

}

$divNameAttributes="";

if (($divNameHeight)) {

$divNameAttributes .= 'style=overflow:hidden;';

if ($divNameHeight > 0) $divNameAttributes .= 'height:'.$divNameHeight.'px;';

//if ($divNameWidth > 0) $divNameAttributes .= 'width:'.$divNameWidth.'px;';// The width setting of the class mod_rsgallery2_random_galleries_attibute would overrule this, so makes no sense to do this now?

$divAttributes .= '"';

}

//--- Db image selections preparation -------------------------------------------

$Rsg2DbSelections = new Rsg2DbSelections ();

//--- Image links preparation -------------------------------------------

$Rsg2ImageRoutes = new Rsg2ImageRoutes ();

//--- Take View Access into account -------------------------------------------

$user = JFactory::getUser();

$groups = $user->getAuthorisedViewLevels();

$groupsIN = implode(", ",array_unique ($groups));

$superAdmin = $user->authorise('core.admin');

//--- Select specific galleries and possibly subs -----------------------------

// Selection requested ?

if ($galleryIds) {

$galleryArray = explode(',', $galleryIds);

// Include children?

if ($includeChildren) {

// All galleries

$allGalleries = $Rsg2DbSelections->ListOfAllGalleriesOrdered ();

// Collect children -> 2dim. array $children[parentid][]

// Establish the hierarchy by first getting the children

$children = array();

if ( $allGalleries ) {

foreach ( $allGalleries as $v ) {

$pt = $v->parent;

$list = @$children[$pt] ? $children[$pt] : array();

array_push( $list, $v );

$children[$pt] = $list;

}

}

// Function to build children tree list

function treerecurse($ParentId, $list, &$children, $maxlevel=20, $level=0) {

}

// Get the children of the user selected galleries

$extendedSelection = $galleryArray;

foreach ($galleryArray as $galUser) {

// Get list of galleries with (grand)children in the right order and with level info

$recursiveGalleriesList = treerecurse( $galUser, array(), $children, 20, 0 );

foreach ($recursiveGalleriesList as $gal) {

array_push($extendedSelection, $gal->id);

}

}

$gallerySelection = implode(", ",array_unique ($extendedSelection));

} else { // Don't include children

$gallerySelection = implode(", ",array_unique ($galleryArray));

}

} else {

// No 'where' clause needed to limit the search of galleries from

$gallerySelection = 0;

}

//--- Query random images -----------------------------------------------------

/* NOTE TODO Access should be checked for galleries, not for images

// If user is not a Super Admin then use View Access Levels

if (!$superAdmin) { // No View Access check for Super Administrators

$query->where('access IN ('.$groupsIN.')'); //@todo use trash state: published=-2

}

*/

// Query to get limited ($count) number of random images

$randomImages = $Rsg2DbSelections->RandomImagesLimited ($count, $gallerySelection);

if(!$randomImages){

// Error handling

// ToDo: Ask module administrator if a message is required (?debug) and to provide this error message

// enqueue message

}

//--- Output ------------------------------------------------------------------

// Let's display what we've gathered: get the layout

require JModuleHelper::getLayoutPath('mod_rsgallery2_random_images', $layout);