App\Models\Forum\Topic::isDoublePostBy PHP Method

    public function isDoublePostBy(User $user)
    {
        if ($user === null) {
            return false;
        }
        if ($user->user_id !== $this->topic_last_poster_id) {
            return false;
        }
        if ($user->user_id === $this->topic_poster) {
            $minHours = config('osu.forum.double_post_time.author');
        } else {
            $minHours = config('osu.forum.double_post_time.normal');
        }
        return $this->topic_last_post_time->copy()->addHours($minHours)->isFuture();
    }