<?php

// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * Allows a creator to edit custom scales, and also display help about scales
 *
 * @copyright 1999 Martin Dougiamas  http://dougiamas.com
 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 * @package course
 */

require_once("../config.php");
require_once("lib.php");

$id   = required_param('id', PARAM_INT);               // course id
$scaleid  = optional_param('scaleid', 0, PARAM_INT);   // scale id (show only this one)

$url = new moodle_url('/course/scales.php', array('id'=>$id));
if ($scaleid !== 0) {
    $url->param('scaleid', $scaleid);
}
$PAGE->set_url($url);

if (!$course = $DB->get_record('course', array('id'=>$id))) {
    print_error("invalidcourseid");
}

require_login($course);
$context = get_context_instance(CONTEXT_COURSE, $course->id);
require_capability('moodle/course:viewscales', $context);

$strscale = get_string("scale");
$strscales = get_string("scales");
$strcustomscale = get_string("scalescustom");
$strstandardscale = get_string("scalesstandard");
$strcustomscales = get_string("scalescustom");
$strstandardscales = get_string("scalesstandard");
$strname = get_string("name");
$strdescription = get_string("description");
$strhelptext = get_string("helptext");
$stractivities = get_string("activities");

$PAGE->set_title($strscales);
echo $OUTPUT->header();

if ($scaleid) {
    if ($scale = $DB->get_record("scale", array('id'=>$scaleid))) {
        if ($scale->courseid == 0 || $scale->courseid == $course->id) {

            $scalemenu = make_menu_from_list($scale->scale);

            echo $OUTPUT->box_start();
            echo $OUTPUT->heading($scale->name);
            echo "<center>";
            echo html_writer::select($scalemenu, 'unused');
            echo "</center>";
            echo text_to_html($scale->description);
            echo $OUTPUT->box_end();
            echo $OUTPUT->close_window_button();
            echo $OUTPUT->footer();
            exit;
        }
    }
}

$systemcontext = get_context_instance(CONTEXT_SYSTEM);

if ($scales = $DB->get_records("scale", array("courseid"=>$course->id), "name ASC")) {
    echo $OUTPUT->heading($strcustomscales);

    if (has_capability('moodle/course:managescales', $context)) {
        echo "<p align=\"center\">(";
        print_string('scalestip2');
        echo ")</p>";
    }

    foreach ($scales as $scale) {

        $scale->description = file_rewrite_pluginfile_urls($scale->description, 'pluginfile.php', $systemcontext->id, 'grade_scale', $scale->id);

        $scalemenu = make_menu_from_list($scale->scale);

        echo $OUTPUT->box_start();
        echo $OUTPUT->heading($scale->name);
        echo "<center>";
        echo html_writer::select($scalemenu, 'unused');
        echo "</center>";
        echo text_to_html($scale->description);
        echo $OUTPUT->box_end();
        echo "<hr />";
    }

} else {
    if (has_capability('moodle/course:managescales', $context)) {
        echo "<p align=\"center\">(";
        print_string("scalestip2");
        echo ")</p>";
    }
}

if ($scales = $DB->get_records("scale", array("courseid"=>0), "name ASC")) {
    echo $OUTPUT->heading($strstandardscales);
    foreach ($scales as $scale) {

        $scale->description = file_rewrite_pluginfile_urls($scale->description, 'pluginfile.php', $systemcontext->id, 'grade_scale', $scale->id);

        $scalemenu = make_menu_from_list($scale->scale);

        echo $OUTPUT->box_start();
        echo $OUTPUT->heading($scale->name);
        echo "<center>";
        echo html_writer::select($scalemenu, 'unused');
        echo "</center>";
        echo text_to_html($scale->description);
        echo $OUTPUT->box_end();
        echo "<hr />";
    }
}

echo $OUTPUT->close_window_button();
echo $OUTPUT->footer();

