#pragma once

#include <chrono>

/**
 * @brief Stopwatches measure the time between two points
 * @details
 *  The stopwatch makes use of std::chronos::steady_clock to measure the time between
 *  when it was startet and when it was stoped. It returnes the time in seconds.
 */
class Stopwatch {
    public:
        /**
         * @brief Creates a new Stopwatch instance
         */
        Stopwatch();

        /**
         * @brief Start the stopwatch
         * @details
         *  If the watch is started while already running, it restarts
         */
        void start();

        /**
         * @brief Stop the stopwatch
         * @returns The elapsed time in seconds as double. If the watch was not started, it returns 0
         */
        double stop();

        ///@returns true if stopwatch is running, false if not
        bool isRunning() { return running; }
    private:
        std::chrono::steady_clock::time_point t_start;
        bool running;
};