pixelfed/app/Http/Controllers/LikeController.php

<?php

namespace App\Http\Controllers;

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

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

	public function store(Request $request)
	{
		$this->validate($request, [
			'item'    => 'required|integer|min:1',
		]);

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

		if (Like::whereStatusId($status->id)->whereProfileId($profile->id)->exists()) {
			$like = Like::whereProfileId($profile->id)->whereStatusId($status->id)->firstOrFail();
			UnlikePipeline::dispatch($like);
		} else {
			$count = $status->likes_count > 4 ? $status->likes_count : $status->likes()->count();
			$like = Like::firstOrCreate([
				'profile_id' => $user->profile_id,
				'status_id' => $status->id
			]);
			if($like->wasRecentlyCreated == true) {
				$count++;
				$status->likes_count = $count;
				$like->status_profile_id = $status->profile_id;
				$like->is_comment = in_array($status->type, [
					'photo',
					'photo:album',
					'video',
					'video:album',
					'photo:video:album'
					]) == false;
				$like->save();
				$status->save();
				LikePipeline::dispatch($like);
			}
		}

		Cache::forget('status:'.$status->id.':likedby:userid:'.$user->id);
		StatusService::refresh($status->id);

		if ($request->ajax()) {
			$response = ['code' => 200, 'msg' => 'Like saved', 'count' => 0];
		} else {
			$response = redirect($status->url());
		}

		return $response;
	}
}