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<?php
namespace JsonApi\Routes\Courseware\Rel;
use Courseware\StructuralElement;
use Courseware\Task;
use Courseware\TaskGroup;
use JsonApi\Errors\RecordNotFoundException;
use JsonApi\Errors\UnprocessableEntityException;
use JsonApi\Routes\Courseware\Authority;
use JsonApi\Routes\RelationshipsController;
use JsonApi\Schemas\Courseware\TaskGroup as TaskGroupSchema;
use JsonApi\Schemas\StatusGroup as StatusGroupSchema;
use JsonApi\Schemas\User as UserSchema;
use Psr\Http\Message\ServerRequestInterface as Request;
use RuntimeException;
use Statusgruppen;
use User;
/**
* @SuppressWarnings(PHPMD.LongVariable)
* @SuppressWarnings(PHPMD.StaticAccess)
*/
class SolversOfTaskGroup extends RelationshipsController
{
protected $allowedPagingParameters = ['offset', 'limit'];
/**
* @SuppressWarnings(PHPMD.UnusedFormalParameter)
*/
protected function fetchRelationship(Request $request, $related)
{
$solvers = $related->getSolvers();
$total = count($solvers);
return $this->getPaginatedIdentifiersResponse(array_slice($solvers, ...$this->getOffsetAndLimit()), $total);
}
/**
* @SuppressWarnings(PHPMD.UnusedFormalParameter)
*/
protected function addToRelationship(Request $request, $related)
{
$this->createTaskFor(
$related,
array_filter($this->validateSolvers($related, $this->validate($request)), function ($solver) use (
$related
) {
return !$related->findTaskBySolver($solver);
})
);
return $this->getCodeResponse(204);
}
protected function findRelated(array $args)
{
$related = TaskGroup::find($args['id']);
if (!$related) {
throw new RecordNotFoundException();
}
return $related;
}
protected function authorize(Request $request, $resource)
{
switch ($request->getMethod()) {
case 'GET':
return Authority::canShowTaskGroup($this->getUser($request), $resource);
case 'POST':
return Authority::canUpdateTaskGroup($this->getUser($request), $resource);
default:
return false;
}
}
/**
* @SuppressWarnings(PHPMD.UnusedFormalParameter)
*/
protected function getRelationshipSelfLink($resource, $schema, $userData)
{
return $schema->getRelationshipSelfLink($resource, TaskGroupSchema::REL_SOLVERS);
}
/**
* @SuppressWarnings(PHPMD.UnusedFormalParameter)
*/
protected function getRelationshipRelatedLink($resource, $schema, $userData)
{
return $schema->getRelationshipRelatedLink($resource, TaskGroupSchema::REL_SOLVERS);
}
protected function validateResourceDocument($json, $data)
{
if (!self::arrayHas($json, 'data')) {
return 'Missing `data` member at document´s top level.';
}
$data = self::arrayGet($json, 'data');
if (!is_array($data)) {
return 'Document´s `data` must be an array.';
}
foreach ($data as $item) {
if (!in_array(self::arrayGet($item, 'type'), [UserSchema::TYPE, StatusGroupSchema::TYPE])) {
return 'Wrong `type` in document´s `data`.';
}
if (!self::arrayGet($item, 'id')) {
return 'Missing `id` of document´s `data`.';
}
}
}
private function validateSolvers(TaskGroup $taskGroup, iterable $json): iterable
{
if (!$taskGroup->course) {
return [];
}
$solvers = [];
foreach ($json['data'] as $item) {
$solver = $this->findSolver($item);
if (!$solver) {
throw new RecordNotFoundException();
}
if (!$this->validateSolver($taskGroup, $solver)) {
throw new UnprocessableEntityException();
}
$solvers[] = $solver;
}
return $solvers;
}
/**
* @return Statusgruppen|User|null
*/
private function findSolver($json)
{
switch ($json['type']) {
case 'status-groups':
return Statusgruppen::find($json['id']);
case 'users':
return User::find($json['id']);
}
return null;
}
/**
* @param Statusgruppen|User $solver
*
* @SuppressWarnings(PHPMD.Superglobals)
*/
private function validateSolver(TaskGroup $taskGroup, $solver): bool
{
if ($solver instanceof User) {
return $GLOBALS['perm']->have_studip_perm('autor', $taskGroup->course->id, $solver->id);
}
if ($solver instanceof Statusgruppen) {
return $taskGroup->course->id === $solver->range_id;
}
return false;
}
/**
* @param array<User|Statusgruppen> $solvers
*/
private function createTaskFor(TaskGroup $taskGroup, $solvers): void
{
$template = $this->getTaskTemplate($taskGroup);
if (!$template) {
throw new RuntimeException();
}
foreach ($solvers as $solver) {
$task = Task::build([
'task_group_id' => $taskGroup->id,
'solver_id' => $solver->id,
'solver_type' => $this->getSolverType($solver),
]);
$taskElement = $template->copy($taskGroup->lecturer, $taskGroup->target, 'task');
$taskElement->title = $taskGroup->title;
$taskElement->store();
$task['structural_element_id'] = $taskElement->id;
$task->store();
}
}
private function getTaskTemplate(TaskGroup $taskGroup): StructuralElement
{
return StructuralElement::find($taskGroup->task_template_id);
}
/**
* @param User|Statusgruppen $solver
*/
private function getSolverType($solver): string
{
$solverTypes = [\User::class => 'autor', \Statusgruppen::class => 'group'];
return $solverTypes[get_class($solver)];
}
}
|
