public function diceRollAction()
    {
        $messages = [];

        if ($this->request->isPost()) {
            do {
                if (!$this->auth->hasUserSession()) {
                    $messages[] = 'Необходимо выполнить вход в систему.';
                    break;
                }

                if (!$this->csrf->check($this->request->getPost())) {
                    $messages[] = 'Неверный CSRF-токен. Попробуйте обновить страницу.';
                    break;
                }

                #Vars
                $amount     = $this->request->getPost('amount', null, '0.00000000');
                $currencyId = (int)$this->request->getPost('currencyId', null, '0');
                $number     = (int)$this->request->getPost('number', null, 50);
                $direction  = $this->request->getPost('direction', null, 'under');
                $clientSeed = $this->request->getPost('clientSeed');

                $this->db->begin();

                $form = new DiceRollForm();

                if (!$form->isValid($this->request->getPost())) {
                    $this->db->rollback();
                    $messages = array_merge($messages, formMessagesToArray($form));
                    break;
                }

                $user = $this->auth->getUser();

                /** @var Balance $userBalance */
                $userBalance = $user->getBalanceByCurrency($currencyId);

                if (mathComp($userBalance->amount, $amount, 8) === -1) {
                    $this->db->rollback();
                    $messages[] = 'На вашем балансе недостаточно средств.';
                    break;
                }

                $userBalance->amount = mathMinus("$userBalance->amount", $amount, 8);

                $diceRoll = new DiceRoll();

                $diceRoll->user_id      = $user->id;
                $diceRoll->currency_id  = $currencyId;
                $diceRoll->server_seed  = $user->server_seed;
                $diceRoll->client_seed  = $clientSeed;
                $diceRoll->amount       = $amount;
                $diceRoll->direction    = $direction;
                $diceRoll->prediction   = $number;

                if (!$diceRoll->save()) {
                    $this->db->rollback();
                    $messages[] = 'Неизвестная ошибка. Пожалуйста попробуйте позже.';
                    logger()->error(stringifyModelErrors($diceRoll));
                    break;
                }

                if ($isWin = $diceRoll->isWin()) {
                    $userBalance->amount = mathPlus(
                        $userBalance->amount,
                        mathMul(
                            $amount,
                            $diceRoll->getRatio(),
                            8
                        )
                    );
                }

                $data = [];

                $data['number'] = $diceRoll->getNumber();;
                $data['status'] = $isWin;
                $data['server_seed'] = $user->resetServerSeed();

                if (!$userBalance->save()) {
                    $this->db->rollback();
                    $messages[] = 'Неизвестная ошибка. Пожалуйста попробуйте позже.';
                    logger()->error(stringifyModelErrors($userBalance));
                    break;
                }

                if (!$user->save()) {
                    $this->db->rollback();
                    $messages[] = 'Неизвестная ошибка. Пожалуйста попробуйте позже.';
                    logger()->error(stringifyModelErrors($userBalance));
                    break;
                }

                $this->db->commit();

                $status = true;
                $data['balance'] = $userBalance->amount;
            } while (false);
        }

        $this->response->setJsonContent(
            [
                'status' => $status ?? false,
                'messages' => $messages,
                'data' => $data ?? []
            ]
        )->send();
    }