pixelfed/app/Jobs/GroupPipeline/GroupCommentPipeline.php

<?php

namespace App\Jobs\GroupPipeline;

use App\Notification;
use App\Status;
use App\Models\GroupPost;
use Cache;
use DB;
use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Bus\Dispatchable;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Queue\SerializesModels;
use Illuminate\Support\Facades\Redis;
use App\Services\MediaStorageService;
use App\Services\NotificationService;
use App\Services\StatusService;

class GroupCommentPipeline implements ShouldQueue
{
	use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;

	protected $status;
	protected $comment;
	protected $groupPost;

	public function __construct(Status $status, Status $comment, $groupPost = null)
	{
		$this->status = $status;
		$this->comment = $comment;
		$this->groupPost = $groupPost;
	}

	public function handle()
	{
		if($this->status->group_id == null || $this->comment->group_id == null) {
			return;
		}

		$this->updateParentReplyCount();
		$this->generateNotification();

		if($this->groupPost) {
			$this->updateChildReplyCount();
		}
	}

	protected function updateParentReplyCount()
	{
		$parent = $this->status;
		$parent->reply_count = Status::whereInReplyToId($parent->id)->count();
		$parent->save();
		StatusService::del($parent->id);
	}

	protected function updateChildReplyCount()
	{
		$gp = $this->groupPost;
		if($gp->reply_child_id) {
			$parent = GroupPost::whereStatusId($gp->reply_child_id)->first();
			if($parent) {
				$parent->reply_count++;
				$parent->save();
			}
		}
	}

	protected function generateNotification()
	{
		$status = $this->status;
		$comment = $this->comment;

		$target = $status->profile;
        $actor = $comment->profile;

        if ($actor->id == $target->id || $status->comments_disabled == true) {
            return;
        }

		$notification = DB::transaction(function() use($target, $actor, $comment) {
			$actorName = $actor->username;
			$actorUrl = $actor->url();
			$text = "{$actorName}  commented on your group post.";
			$html = "<a href='{$actorUrl}' class='profile-link'>{$actorName}</a> commented on your group post.";
            $notification = new Notification();
            $notification->profile_id = $target->id;
            $notification->actor_id = $actor->id;
            $notification->action = 'group:comment';
            $notification->item_id = $comment->id;
            $notification->item_type = "App\Status";
            $notification->save();
            return $notification;
        });

        NotificationService::setNotification($notification);
        NotificationService::set($notification->profile_id, $notification->id);
	}
}