<?php

    require_once(dirname(dirname(__FILE__))."/engine/engine.php");

    gatekeeper();
	action_gatekeeper();

    global $Dippler;

	$course = (int)get_input('course');
	$url = get_input('url');
	$title = get_input('title');
	$author = get_input('author');
	$description = get_input('description');
	$published = get_input('published');
	$tags = get_input('tags');
	$folder = get_input('folder');
	$categories = get_input('categories', array());
	$subtype = get_input('subtype');

	// Cache variables
	$input_values = array();
	$input_values['url'] = $url;
	$input_values['title'] = $title;
	$input_values['author'] = $author;
	$input_values['description'] = $description;
	$input_values['published'] = $published;
	$input_values['tags'] = $tags;
	$input_values['folder'] = $folder;
	$input_values['categories'] = $categories;
	$input_values['subtype'] = $subtype;
    $_SESSION['input_values'] = $input_values;

	if (empty($url) || empty($title)) {
		$Dippler->add_system_message(_("At least one of the parameters is empty."), 'error');
        if ($folder && $folder != 0) {
            forward("course/resources/{$course}/folder/{$folder}/resource/add");
        } else {
            forward("course/resources/{$course}/resource/add");
        }
	} else if (empty($course)) {
	    $Dippler->add_system_message(_("Course not found"), 'error');
        if ($folder && $folder != 0) {
            forward("course/resources/{$course}/folder/{$folder}/resource/add");
        } else {
            forward("course/resources/{$course}/resource/add");
        }
	} else {
		$lre = new LearningResource();
		$lre->url = $url;
		$lre->title = $title;
		$lre->author = $author;
		$lre->description = $description;
		if (strtotime($published)) {
			$published = strtotime($published);
		} else {
			$published = null;
		}
		$lre->published = $published;
		$lre->tags = $tags;
		$lre->folder = $folder;
		$lre->course = $course;
		$lre->subtype = $subtype;
		if (isset($tags)) {
		    $lre->tags = explode(",", $tags);
		}
		foreach ($categories as $cat_id) {
		    $lre->categories[$cat_id] = new Category($cat_id);
		}
        $lre_id = $lre->create();
		if (!$lre_id) {
		    $Dippler->add_system_message(_("Resource could not be created."), 'error');
            if ($folder && $folder != 0) {
                forward("course/resources/{$course}/folder/{$folder}/resource/add");
            } else {
                forward("course/resources/{$course}/resource/add");
            }
		}

		$Dippler->add_system_message(_("Resource added."));

		// Clear cache
        $Dippler->clearSessionInputValues();
		forward($lre->getURL());
	}

	forward('courses/my');
?>