CheckLoggedIntoActivityInstance.php

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<?php

namespace BristolSU\Support\ActivityInstance\Middleware;

use BristolSU\Support\ActivityInstance\Contracts\ActivityInstanceResolver;
use BristolSU\Support\ActivityInstance\Exceptions\NotInActivityInstanceException;
use Illuminate\Http\Request;

class CheckLoggedIntoActivityInstance
{

    private $activityInstanceResolver;

    public function __construct(ActivityInstanceResolver $activityInstanceResolver)
    {
        $this->activityInstanceResolver = $activityInstanceResolver;
    }

    public function handle(Request $request, \Closure $next)
    {
        try {
            $this->activityInstanceResolver->getActivityInstance();
        } catch (\Exception $exception) {
            // We're not currently in an activity instance, so we should throw an exception
            // The exception handler should gracefully handle this exception
            throw new NotInActivityInstanceException;
        }
        return $next($request);
    }

}