TowerCalculator.cpp

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/*
 * SNode.C - a slim toolkit for network communication
 * Copyright (C) Volker Christian <me@vchrist.at>
 *               2020, 2021, 2022, 2023, 2024, 2025
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
#include "TowerCalculator.h"
 
#ifndef DOXYGEN_SHOULD_SKIP_THIS
 
#include <iostream>
#include <string>
 
#endif // DOXYGEN_SHOULD_SKIP_THIS
 
namespace apps::towercalculator {
 
    TowerCalculator::TowerCalculator()
        : core::EventReceiver("TowerCalculator")
        , currentValue(0)
        , state(State::NEXT) {
    }
 
    void TowerCalculator::calculate(long startValue) {
        values.push_back(startValue);
 
        calculate();
    }
 
    void TowerCalculator::calculate() {
        if (!values.empty() && state == State::NEXT) {
            currentValue = values.front();
            values.pop_front();
 
            state = State::MULTIPLY;
            multiplicator = 1;
            divisor = 2;
 
            std::cout << std::endl << "Starting calculation with value = " << currentValue << std::endl;
 
            span();
        }
    }
 
    void TowerCalculator::onEvent([[maybe_unused]] const utils::Timeval& currentTime) {
        switch (state) {
            case State::MULTIPLY:
                if (multiplicator < 10) {
                    std::cout << currentValue << " * " << multiplicator << " = ";
                    currentValue = currentValue * multiplicator;
                    std::cout << currentValue << std::endl;
                    multiplicator++;
                } else {
                    state = State::DIVIDE;
                }
                span();
                break;
            case State::DIVIDE:
                if (divisor < 10) {
                    std::cout << currentValue << " / " << divisor << " = ";
                    currentValue = currentValue / divisor;
                    std::cout << currentValue << std::endl;
                    divisor++;
                } else {
                    state = State::NEXT;
                }
                span();
                break;
            case State::NEXT:
                calculate();
                break;
        }
    }
 
} // namespace apps::towercalculator