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<?php
namespace JsonApi\Routes\Courseware;
use Courseware\Task;
use Courseware\TaskGroup;
use JsonApi\Errors\AuthorizationFailedException;
use JsonApi\Errors\BadRequestException;
use JsonApi\JsonApiController;
use JsonApi\Schemas\Courseware\Task as TaskSchema;
use JsonApi\Schemas\Courseware\TaskGroup as TaskGroupSchema;
use Psr\Http\Message\ResponseInterface as Response;
use Psr\Http\Message\ServerRequestInterface as Request;
/**
* Displays all Tasks.
*/
class TasksIndex extends JsonApiController
{
protected $allowedFilteringParameters = ['cid'];
protected $allowedIncludePaths = [
TaskSchema::REL_FEEDBACK,
TaskSchema::REL_SOLVER,
TaskSchema::REL_STRUCTURAL_ELEMENT,
TaskSchema::REL_TASK_GROUP,
TaskSchema::REL_TASK_GROUP . '.' . TaskGroupSchema::REL_LECTURER,
TaskSchema::REL_TASK_GROUP . '.' . TaskGroupSchema::REL_PEER_REVIEW_PROCESSES,
];
/**
* @SuppressWarnings(PHPMD.UnusedFormalParameter)
*
* @param array $args
*
* @return Response
*/
public function __invoke(Request $request, Response $response, $args)
{
if ($error = $this->validateFilters()) {
throw new BadRequestException($error);
}
$filtering = $this->getQueryParameters()->getFilteringParameters() ?: [];
$resources = [];
if (empty($filtering)) {
if (!Authority::canIndexTasks($this->getUser($request))) {
throw new AuthorizationFailedException('Only root users may index all tasks without a `filter[cid]`.');
}
$resources = Task::findBySQL('1 ORDER BY mkdate', []);
} else {
$user = $this->getUser($request);
/** @var ?\Course $course */
$course = \Course::find($filtering['cid']);
if ($GLOBALS['perm']->have_studip_perm('tutor', $course->getId(), $user->getId())) {
$resources = $this->findTasksByCourse($course);
} else {
$resources = $this->findTasksByCourseMember($user, $course);
}
}
return $this->getContentResponse($resources);
}
private function validateFilters()
{
$filtering = $this->getQueryParameters()->getFilteringParameters() ?: [];
// course
if (isset($filtering['cid'])) {
$course = \Course::find($filtering['cid']);
if (!$course) {
return 'Could not find a course matching this `filter[cid]`.';
}
}
}
private function findTasksByCourse(\Course $course, bool $showNotYetActive = true): \SimpleCollection
{
$whereClause = $showNotYetActive ? 'seminar_id = ?' : 'start_date <= UNIX_TIMESTAMP() AND seminar_id = ?';
$taskGroups = TaskGroup::findBySQL($whereClause, [$course->getId()]);
$tasks = [];
foreach ($taskGroups as $taskGroup) {
$tasks[] = $taskGroup->tasks->getArrayCopy();
}
$tasks = \SimpleORMapCollection::createFromArray(array_flatten($tasks), false)->orderBy('id asc');
return $tasks;
}
private function findTasksByCourseMember(\User $user, \Course $course): \SimpleCollection
{
$groupIds = $course['statusgruppen']
->filter(function (\Statusgruppen $group) use ($user) {
return $group->isMember($user->getId());
})
->pluck('id');
return $this->findTasksByCourse($course, false)->filter(function ($task) use ($user, $groupIds) {
return ('autor' === $task['solver_type'] && $task['solver_id'] === $user->getId()) ||
('group' === $task['solver_type'] && in_array($task['solver_id'], $groupIds));
});
}
}
|
