eatvio-infra/app/Livewire/Diet/Comment/Upvote.php

<?php

namespace App\Livewire\Diet\Comment;

use App\Models\DietComment;
use Illuminate\Contracts\View\Factory as ViewFactory;
use Illuminate\Contracts\View\View;
use Livewire\Component;

class Upvote extends Component
{
    public DietComment $comment;

    public function mount(DietComment $comment): void
    {
        $this->comment = $comment;
    }

    public function render(): View|ViewFactory
    {
        $upvotes = $this->comment->upvotes()->forDietCommentsUpVote($this->comment)->count();
        $downvotes = $this->comment->upvotes()->forDietCommentsDownVote($this->comment)->count();
        $sum = $upvotes - $downvotes;

        return view(
            'livewire.diet.comment.upvote',
            [
                'sum' => $sum,
                'isUpVoted' => $this->comment->isUpVoted(),
                'isDownVoted' => $this->comment->isDownVoted(),
            ]
        );
    }

    public function upvote(): void
    {
        if ($this->comment->isUpVoted()) {
            $this->comment->removeUpVote();

            return;
        }

        if ($this->comment->isDownVoted()) {
            $this->comment->removeDownVote();
        }

        $this->comment->upvotes()->create([
            'user_id' => auth()->id(),
            'comment_id' => $this->comment->id,
            'type' => 'upvote',
        ]);
    }

    public function downvote(): void
    {
        if ($this->comment->isDownVoted()) {
            $this->comment->removeDownVote();

            return;
        }

        if ($this->comment->isUpVoted()) {
            $this->comment->removeUpVote();
        }

        $this->comment->upvotes()->create([
            'user_id' => auth()->id(),
            'comment_id' => $this->comment->id,
            'type' => 'downvote',
        ]);
    }
}