<?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/>.

/**
 * View an insight.
 *
 * @package    report_insights
 * @copyright  2017 David Monllao {@link http://www.davidmonllao.com}
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

require_once(__DIR__ . '/../../config.php');

$predictionid = required_param('id', PARAM_INT);

list($model, $prediction, $context) = \core_analytics\manager::get_prediction($predictionid, true);
if ($context->contextlevel < CONTEXT_COURSE) {
    // Only for higher levels than course.
    $PAGE->set_context($context);
}

$params = array('id' => $prediction->get_prediction_data()->id);
$url = new \moodle_url('/report/insights/prediction.php', $params);
$PAGE->set_url($url);
$PAGE->set_pagelayout('report');

$renderer = $PAGE->get_renderer('report_insights');

$insightinfo = new stdClass();
$insightinfo->contextname = $context->get_context_name();
$insightinfo->insightname = $model->get_target()->get_name();
$title = get_string('insightinfo', 'analytics', $insightinfo);

$modelready = $model->is_enabled() && $model->is_trained() && $model->predictions_exist($context);
if (!$modelready && !has_capability('moodle/analytics:managemodels', $context)) {
    echo $renderer->render_model_disabled($insightinfo);
    exit(0);
}

if (!$model->uses_insights()) {
    echo $renderer->render_no_insights_model($context);
    exit(0);
}

$PAGE->set_title($title);
$PAGE->set_heading($title);

echo $OUTPUT->header();

$renderable = new \report_insights\output\insight($prediction, $model, false);
echo $renderer->render($renderable);

echo $OUTPUT->footer();