/**
 * @file Stopwatch.cpp
 *
 * @date 08.04.2020
 */

#include <framework/timemanager/Stopwatch.h>
#include <framework/serviceinterface/ServiceInterfaceStream.h>
#include <iomanip>

Stopwatch::Stopwatch(bool displayOnDestruction,
        StopwatchDisplayMode displayMode):
        displayOnDestruction(displayOnDestruction) {
    // Measures start time on initialization.
    Clock::getUptime(&startTime);
}

void Stopwatch::start() {
    startTime = Clock::getUptime();
}

millis_t Stopwatch::stop() {
    stopInternal();
    return elapsedTime.tv_sec * 1000 + elapsedTime.tv_usec / 1000;
}

seconds_t Stopwatch::stopSeconds() {
    stopInternal();
    return timevalOperations::toDouble(elapsedTime);
}

void Stopwatch::display() {
    if(displayMode == StopwatchDisplayMode::MILLIS) {
        info << "Stopwatch: Operation took " << elapsedTime.tv_sec * 1000 +
                elapsedTime.tv_usec * 1000 << " milliseconds";
    }
    else if(displayMode == StopwatchDisplayMode::SECONDS) {
        info <<"Stopwatch: Operation took "  << std::setprecision(4)
             << std::fixed << timevalOperations::toDouble(elapsedTime)
             << " seconds";
    }
}

Stopwatch::~Stopwatch() {
    if(displayOnDestruction) {
        stopInternal();
        display();
    }
}

void Stopwatch::setDisplayMode(StopwatchDisplayMode displayMode) {
    this->displayMode = displayMode;
}

StopwatchDisplayMode Stopwatch::getDisplayMode() const {
    return displayMode;
}

void Stopwatch::stopInternal() {
    elapsedTime = Clock::getUptime() - startTime;
}