/*
 * Timer.cpp
 *
 *  Created on: 20 δεκ. 2017 γ.
 *      Author: titov
 */

#include "Timer.hh"

float systemic::Timer::system_tick_frequency_khz = 0.0f;

systemic::Timer::Timer() : state(off), time_stamp(0ull), time_delay(0ull) {}

void systemic::Timer::start( time_t delay ) {
    time_stamp = std::clock();
    time_delay = delay * system_tick_frequency_khz;

    //todo memory-order

    state = active;
}

void systemic::Timer::stop() {
    state = off;
}

bool systemic::Timer::delayElapsed() const {
    if( state == active
            && ( std::clock() - time_stamp ) >= time_delay ) {
        state = elapsed;
    }

    return state == elapsed;
}

bool systemic::Timer::delayFinished() {
    bool result = delayElapsed();

    if( result ) stop();

    return result;
}

bool systemic::Timer::isActive() const {
    return state != off;
}

void systemic::Timer::setSystemTickFrequency( unsigned long frequency ) {
    system_tick_frequency_khz = frequency / 1000.0f;
}

systemic::time_t systemic::seconds2time( float time_in_secods ) {

    return time_in_secods * 1000.0f;

}

float systemic::time2seconds( time_t time_ ) {

    return time_ * 0.001f;

}