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<?php
namespace JsonApi\Routes\Courseware;
use Courseware\Container;
use JsonApi\Errors\AuthorizationFailedException;
use JsonApi\Errors\UnprocessableEntityException;
use JsonApi\JsonApiController;
use JsonApi\Routes\ValidationTrait;
use JsonApi\Schemas\Courseware\Block as BlockSchema;
use JsonApi\Schemas\Courseware\Container as ContainerSchema;
use Psr\Http\Message\ResponseInterface as Response;
use Psr\Http\Message\ServerRequestInterface as Request;
use Studip\Activity\Activity;
use Studip\Activity\CoursewareProvider;
/**
* Create a block in a container.
*/
class BlocksCreate extends JsonApiController
{
use ValidationTrait;
/**
* @SuppressWarnings(PHPMD.UnusedFormalParameter)
*/
public function __invoke(Request $request, Response $response, $args)
{
$json = $this->validate($request);
$container = $this->getContainerFromJson($json);
if (!Authority::canCreateBlocks($user = $this->getUser($request), $container)) {
throw new AuthorizationFailedException();
}
$block = $this->createBlock($user, $json, $container);
return $this->getCreatedResponse($block);
}
/**
* @SuppressWarnings(PHPMD.UnusedFormalParameters)
*/
protected function validateResourceDocument($json, $data)
{
if (!self::arrayHas($json, 'data')) {
return 'Missing `data` member at document´s top level.';
}
if (BlockSchema::TYPE !== self::arrayGet($json, 'data.type')) {
return 'Wrong `type` member of document´s `data`.';
}
if (self::arrayHas($json, 'data.id')) {
return 'New document must not have an `id`.';
}
if (!self::arrayHas($json, 'data.attributes.block-type')) {
return 'Missing `block-type` attribute.';
}
$blockType = self::arrayGet($json, 'data.attributes.block-type');
if (!$this->validateBlockType($blockType)) {
return 'Invalid `block-type` attribute.';
}
if (!self::arrayHas($json, 'data.relationships.container')) {
return 'Missing `container` relationship.';
}
if (!$this->getContainerFromJson($json)) {
return 'Invalid `container` relationship.';
}
}
private function validateBlockType(string $blockType)
{
return \Courseware\BlockTypes\BlockType::isBlockType($blockType);
}
private function getContainerFromJson($json)
{
if (!$this->validateResourceObject($json, 'data.relationships.container', ContainerSchema::TYPE)) {
return null;
}
$containerId = self::arrayGet($json, 'data.relationships.container.data.id');
return \Courseware\Container::find($containerId);
}
private function createBlock(\User $user, array $json, \Courseware\Container $container)
{
$get = function ($key, $default = '') use ($json) {
return self::arrayGet($json, $key, $default);
};
$block = \Courseware\Block::build([
'container_id' => $container->id,
'owner_id' => $user->id,
'editor_id' => $user->id,
'edit_blocker_id' => $user->id,
'position' => $container->countBlocks(),
'block_type' => $get('data.attributes.block-type'),
'payload' => '',
'visible' => 1,
'commentable' => 0
]);
$payload = $get('data.attributes.payload');
if ($payload) {
if (!$block->type->validatePayload($payload)) {
throw new UnprocessableEntityException('Invalid payload for this `block-type`.');
}
$block->type->setPayload($payload);
}
$block->store();
return $block;
}
}
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