pixelfed/app/Jobs/FollowPipeline/UnfollowPipeline.php

<?php

namespace App\Jobs\FollowPipeline;

use App\Follower;
use App\FollowRequest;
use App\Jobs\HomeFeedPipeline\FeedUnfollowPipeline;
use App\Notification;
use App\Profile;
use App\Services\AccountService;
use App\Services\FollowerService;
use App\Services\NotificationService;
use Cache;
use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Bus\Dispatchable;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Queue\SerializesModels;

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

    protected $actor;

    protected $target;

    /**
     * Create a new job instance.
     *
     * @return void
     */
    public function __construct($actor, $target)
    {
        $this->actor = $actor;
        $this->target = $target;
    }

    /**
     * Execute the job.
     *
     * @return void
     */
    public function handle()
    {
        $actor = $this->actor;
        $target = $this->target;

        $actorProfile = Profile::find($actor);
        if (! $actorProfile) {
            return;
        }
        $targetProfile = Profile::find($target);
        if (! $targetProfile) {
            return;
        }

        FeedUnfollowPipeline::dispatch($actor, $target)->onQueue('follow');

        FollowerService::remove($actor, $target);

        $actorProfileSync = Cache::get(FollowerService::FOLLOWING_SYNC_KEY.$actor);
        if (! $actorProfileSync) {
            FollowServiceWarmCache::dispatch($actor)->onQueue('low');
        } else {
            if ($actorProfile->following_count) {
                $actorProfile->decrement('following_count');
            } else {
                $count = Follower::whereProfileId($actor)->count();
                $actorProfile->following_count = $count;
                $actorProfile->save();
            }
            Cache::put(FollowerService::FOLLOWING_SYNC_KEY.$actor, 1, 604800);
            AccountService::del($actor);
        }

        $targetProfileSync = Cache::get(FollowerService::FOLLOWERS_SYNC_KEY.$target);
        if (! $targetProfileSync) {
            FollowServiceWarmCache::dispatch($target)->onQueue('low');
        } else {
            if ($targetProfile->followers_count) {
                $targetProfile->decrement('followers_count');
            } else {
                $count = Follower::whereFollowingId($target)->count();
                $targetProfile->followers_count = $count;
                $targetProfile->save();
            }
            Cache::put(FollowerService::FOLLOWERS_SYNC_KEY.$target, 1, 604800);
            AccountService::del($target);
        }

        if ($targetProfile->domain == null) {
            Notification::withTrashed()
                ->whereProfileId($target)
                ->whereAction('follow')
                ->whereActorId($actor)
                ->whereItemId($target)
                ->whereItemType('App\Profile')
                ->get()
                ->each(function ($n) {
                    NotificationService::del($n->profile_id, $n->id);
                    $n->forceDelete();
                });
        }

        if ($actorProfile->domain == null && config('instance.timeline.home.cached')) {
            Cache::forget('pf:timelines:home:'.$actor);
        }

        FollowRequest::whereFollowingId($target)
            ->whereFollowerId($actor)
            ->delete();

        AccountService::del($target);
        AccountService::del($actor);

    }
}