Authority.php

<?php

namespace JsonApi\Routes\Courseware;

use Courseware\Block;
use Courseware\BlockComment;
use Courseware\BlockFeedback;
use Courseware\Container;
use Courseware\Instance;
use Courseware\StructuralElement;
use Courseware\StructuralElementComment;
use Courseware\StructuralElementFeedback;
use Courseware\Task;
use Courseware\TaskFeedback;
use Courseware\TaskGroup;
use Courseware\Template;
use Courseware\UserDataField;
use Courseware\UserProgress;
use Courseware\PublicLink;
use User;

/**
 * @SuppressWarnings(PHPMD.ExcessiveClassComplexity)
 * @SuppressWarnings(PHPMD.TooManyMethods)
 * @SuppressWarnings(PHPMD.TooManyPublicMethods)
 */
class Authority
{
    public static function canShowCoursewareInstance(User $user, Instance $resource)
    {
        return self::canShowStructuralElement($user, $resource->getRoot());
    }

    public static function canUpdateCoursewareInstance(User $user, Instance $resource)
    {
        return self::canUpdateStructuralElement($user, $resource->getRoot());
    }

    /**
     * @SuppressWarnings(PHPMD.Superglobals)
     */
    public static function canShowBlock(User $user, Block $resource)
    {
        $struct = $resource->container->structural_element;

        return $struct->canRead($user);
    }

    public static function canIndexBlocks(User $user, Container $resource)
    {
        return self::canShowContainer($user, $resource);
    }

    public static function canCreateBlocks(User $user, Container $resource)
    {
        return self::canUpdateContainer($user, $resource);
    }

    public static function canUpdateBlock(User $user, Block $resource)
    {
        if ($resource->isBlocked()) {
            return $resource->getBlockerUserId() == $user->id;
        }

        return self::canUpdateContainer($user, $resource->container);
    }

    public static function canDeleteBlock(User $user, Block $resource)
    {
        return self::canUpdateBlock($user, $resource);