pixelfed/app/Http/Controllers/LikeController.php

<?php

namespace App\Http\Controllers;

use App\Jobs\LikePipeline\LikePipeline;
use App\Like;
use App\Status;
use App\User;
use Auth;
use Cache;
use Illuminate\Http\Request;

class LikeController extends Controller
{
    public function __construct()
    {
        $this->middleware('auth');
    }

    public function store(Request $request)
    {
        $this->validate($request, [
        'item'    => 'required|integer',
      ]);

        $profile = Auth::user()->profile;
        $status = Status::withCount('likes')->findOrFail($request->input('item'));

        Cache::forget('transform:status:'.$status->url());

        $count = $status->likes_count;

        if ($status->likes()->whereProfileId($profile->id)->count() !== 0) {
            $like = Like::whereProfileId($profile->id)->whereStatusId($status->id)->firstOrFail();
            $like->forceDelete();
            $count--;
        } else {
            $like = new Like();
            $like->profile_id = $profile->id;
            $like->status_id = $status->id;
            $like->save();
            $count++;
            LikePipeline::dispatch($like);
        }

        $likes = Like::whereProfileId($profile->id)
               ->orderBy('id', 'desc')
               ->take(1000)
               ->pluck('status_id');

        Cache::put('api:like-ids:user:'.$profile->id, $likes, now()->addMinutes(1440));

        if ($request->ajax()) {
            $response = ['code' => 200, 'msg' => 'Like saved', 'count' => $count];
        } else {
            $response = redirect($status->url());
        }

        return $response;
    }
}