<?php

namespace Wallabag\AnnotationBundle\Controller;

use FOS\RestBundle\Controller\FOSRestController;
use Symfony\Component\HttpFoundation\JsonResponse;
use Symfony\Component\HttpFoundation\Request;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\ParamConverter;
use Wallabag\AnnotationBundle\Entity\Annotation;
use Wallabag\AnnotationBundle\Form\EditAnnotationType;
use Wallabag\AnnotationBundle\Form\NewAnnotationType;
use Wallabag\CoreBundle\Entity\Entry;
use Wallabag\CoreBundle\Event\Activity\Actions\Annotation\AnnotationCreatedEvent;
use Wallabag\CoreBundle\Event\Activity\Actions\Annotation\AnnotationDeletedEvent;
use Wallabag\CoreBundle\Event\Activity\Actions\Annotation\AnnotationEditedEvent;

class WallabagAnnotationController extends FOSRestController
{
    /**
     * Retrieve annotations for an entry.
     *
     * @param Entry $entry
     *
     * @see Wallabag\ApiBundle\Controller\WallabagRestController
     *
     * @return JsonResponse
     */
    public function getAnnotationsAction(Entry $entry)
    {
        $annotationRows = $this
            ->getDoctrine()
            ->getRepository('WallabagAnnotationBundle:Annotation')
            ->findAnnotationsByPageId($entry->getId(), $this->getUser()->getId());
        $total = count($annotationRows);
        $annotations = ['total' => $total, 'rows' => $annotationRows];

        $json = $this->get('serializer')->serialize($annotations, 'json');

        return (new JsonResponse())->setJson($json);
    }

    /**
     * Creates a new annotation.
     *
     * @param Request $request
     * @param Entry   $entry
     *
     * @return JsonResponse
     *
     * @see Wallabag\ApiBundle\Controller\WallabagRestController
     */
    public function postAnnotationAction(Request $request, Entry $entry)
    {
        $data = json_decode($request->getContent(), true);

        $em = $this->getDoctrine()->getManager();
        $annotation = new Annotation($this->getUser());
        $annotation->setEntry($entry);

        $form = $this->get('form.factory')->createNamed('', NewAnnotationType::class, $annotation, [
            'csrf_protection' => false,
            'allow_extra_fields' => true,
        ]);
        $form->submit($data);

        if ($form->isValid()) {
            $em->persist($annotation);
            $em->flush();

            $this->get('event_dispatcher')->dispatch(AnnotationCreatedEvent::NAME, new AnnotationCreatedEvent($annotation));

            $json = $this->get('serializer')->serialize($annotation, 'json');

            return JsonResponse::fromJsonString($json);
        }

        return $form;
    }

    /**
     * Updates an annotation.
     *
     * @see Wallabag\ApiBundle\Controller\WallabagRestController
     *
     * @ParamConverter("annotation", class="WallabagAnnotationBundle:Annotation")
     *
     * @param Annotation $annotation
     * @param Request    $request
     *
     * @return JsonResponse
     */
    public function putAnnotationAction(Annotation $annotation, Request $request)
    {
        $data = json_decode($request->getContent(), true);

        $form = $this->get('form.factory')->createNamed('', EditAnnotationType::class, $annotation, [
            'csrf_protection' => false,
            'allow_extra_fields' => true,
        ]);
        $form->submit($data);

        if ($form->isValid()) {
            $em = $this->getDoctrine()->getManager();
            $em->persist($annotation);
            $em->flush();

            $json = $this->get('serializer')->serialize($annotation, 'json');
            $this->get('event_dispatcher')->dispatch(AnnotationEditedEvent::NAME, new AnnotationEditedEvent($annotation));

            return JsonResponse::fromJsonString($json);
        }

        return $form;
    }

    /**
     * Removes an annotation.
     *
     * @see Wallabag\ApiBundle\Controller\WallabagRestController
     *
     * @ParamConverter("annotation", class="WallabagAnnotationBundle:Annotation")
     *
     * @param Annotation $annotation
     *
     * @return JsonResponse
     */
    public function deleteAnnotationAction(Annotation $annotation)
    {
        $em = $this->getDoctrine()->getManager();
        $em->remove($annotation);
        $em->flush();

        $this->get('event_dispatcher')->dispatch(AnnotationDeletedEvent::NAME, new AnnotationDeletedEvent($annotation));

        $json = $this->get('serializer')->serialize($annotation, 'json');

        return (new JsonResponse())->setJson($json);
    }
}