public function videoRecommendationsAction($scope = 'all', $groupingId = 'all', $debug = false)
{
$this->view->disable();
// Get our context (this takes care of starting the session, too)
$context = $this->getDI()->getShared('ltiContext');
if (!$context->valid) {
echo '[{"error":"Invalid lti context"}]';
return;
}
if (!isset($groupingId)) {
echo '[{"error":"No scope grouping ID specified"}]';
return;
}
// Get the list of videos associated with concepts for the given scope and grouping ID
$videos = [];
switch ($scope) {
case "concept":
// Filter based on concept
$videos = MappingHelper::videosForConcept($groupingId);
break;
case "unit":
// Filter based on unit
$videos = MappingHelper::videosForConcepts(MappingHelper::conceptsInUnit($groupingId));
break;
default:
// All videos
$videos = MappingHelper::videosForConcepts(MappingHelper::allConcepts());
break;
}
// Find percentage watched for each video
foreach ($videos as $key => $video) {
$percentageWatched = MasteryHelper::calculateUniqueVideoPercentageForVideo($context->getUserName(), $video, $debug);
// Add the percentage to the video
$video["percentageWatched"] = $percentageWatched;
// Add the modified video back to the original array
$videos[$key] = $video;
}
// Format each video for the frontend
$formatted = [];
foreach ($videos as $video) {
$formatted[] = $video;
}
if ($debug) {
echo "<pre>Getting information for these video IDs in scope {$scope} and ID {$groupingId}\n";
foreach ($videos as $video) {
echo $video["Video ID"] . "\n";
}
}
echo json_encode($formatted);
}
