framework/extensions/subscriptions/extend.php

<?php

/*
 * This file is part of Flarum.
 *
 * For detailed copyright and license information, please view the
 * LICENSE file that was distributed with this source code.
 */

use Flarum\Api\Serializer\BasicDiscussionSerializer;
use Flarum\Api\Serializer\DiscussionSerializer;
use Flarum\Approval\Event\PostWasApproved;
use Flarum\Discussion\Discussion;
use Flarum\Discussion\Event\Saving;
use Flarum\Discussion\Filter\DiscussionFilterer;
use Flarum\Discussion\Search\DiscussionSearcher;
use Flarum\Extend;
use Flarum\Post\Event\Deleted;
use Flarum\Post\Event\Hidden;
use Flarum\Post\Event\Posted;
use Flarum\Post\Event\Restored;
use Flarum\Subscriptions\HideIgnoredFromAllDiscussionsPage;
use Flarum\Subscriptions\Listener;
use Flarum\Subscriptions\Notification\NewPostBlueprint;
use Flarum\Subscriptions\Query\SubscriptionFilterGambit;

return [
    (new Extend\Frontend('forum'))
        ->js(__DIR__.'/js/dist/forum.js')
        ->css(__DIR__.'/less/forum.less')
        ->route('/following', 'following'),

    new Extend\Locales(__DIR__.'/locale'),

    (new Extend\View)
        ->namespace('flarum-subscriptions', __DIR__.'/views'),

    (new Extend\Notification())
        ->type(NewPostBlueprint::class, BasicDiscussionSerializer::class, ['alert', 'email']),

    (new Extend\ApiSerializer(DiscussionSerializer::class))
        ->attribute('subscription', function (DiscussionSerializer $serializer, Discussion $discussion) {
            if ($state = $discussion->state) {
                return $state->subscription;
            }
        }),

    (new Extend\User())
        ->registerPreference('followAfterReply', 'boolval', false),

    (new Extend\Event())
        ->listen(Saving::class, Listener\SaveSubscriptionToDatabase::class)
        ->listen(Posted::class, Listener\SendNotificationWhenReplyIsPosted::class)
        ->listen(PostWasApproved::class, Listener\SendNotificationWhenReplyIsPosted::class)
        ->listen(Hidden::class, Listener\DeleteNotificationWhenPostIsHiddenOrDeleted::class)
        ->listen(Restored::class, Listener\RestoreNotificationWhenPostIsRestored::class)
        ->listen(Deleted::class, Listener\DeleteNotificationWhenPostIsHiddenOrDeleted::class)
        ->listen(Posted::class, Listener\FollowAfterReply::class),

    (new Extend\Filter(DiscussionFilterer::class))
        ->addFilter(SubscriptionFilterGambit::class)
        ->addFilterMutator(HideIgnoredFromAllDiscussionsPage::class),

    (new Extend\SimpleFlarumSearch(DiscussionSearcher::class))
        ->addGambit(SubscriptionFilterGambit::class),

    (new Extend\User())
        ->registerPreference('flarum-subscriptions.notify_for_all_posts', 'boolval', false),
];