#pragma once

#include <iostream>
#include <string>
#include <osg/Timer>

class ScopedTimer {
public:
    ScopedTimer(const std::string& description,
        std::ostream& output_stream = std::cout,
        bool endline_after_time = true)
        : outputStream_(output_stream)
        , start_()
        , endlineAfterTime_(endline_after_time) {
        outputStream_ << description << std::flush;
        start_ = osg::Timer::instance()->tick();
    }

    ~ScopedTimer() {
        osg::Timer_t end = osg::Timer::instance()->tick();

        outputStream_ << osg::Timer::instance()->delta_s(start_, end) << "s";

        if (endlineAfterTime_) {
            outputStream_ << std::endl;
        } else {
            outputStream_ << std::flush;
        }
    }

private:
    std::ostream& outputStream_;
    osg::Timer_t start_;
    bool endlineAfterTime_;
};