#include "Sinewave.h"

#include <chrono>
#include <cmath>

#include "Assembly.h"


Sinewave::Sinewave() :
	m_start_time {clock::now()},
	m_amplitude {1.0},
	m_frequency {1.0},
	m_phase {0.0}
{
}


void Sinewave::apply(AssemblyContext ctx)
{
	ctx.bind("/set_amplitude", [&](double amplitude) { set_amplitude(amplitude); });
	ctx.bind("/set_frequency", [&](double frequency) { set_frequency(frequency); });
	ctx.bind("/set_phase", [&](double phase) { set_phase(phase); });
	ctx.bind("/get_amplitude", [&]() -> double { return get_amplitude(); });
	ctx.bind("/get_frequency", [&]() -> double { return get_frequency(); });
	ctx.bind("/get_phase", [&]() -> double { return get_phase(); });
	ctx.bind("/get_point", [&]() -> double { return get_point(); });
}


void Sinewave::set_amplitude(double amplitude)
{
	m_amplitude = amplitude;
}


void Sinewave::set_frequency(double frequency)
{
	m_frequency = frequency;
}


void Sinewave::set_phase(double phase)
{
	m_phase = phase;
}


double Sinewave::get_amplitude() const
{
	return m_amplitude;
}


double Sinewave::get_frequency() const
{
	return m_frequency;
}


double Sinewave::get_phase() const
{
	return m_phase;
}


double Sinewave::get_point() const
{
	const std::chrono::duration<double> time = clock::now() - m_start_time;
	return m_amplitude * sin(2 * M_PI * m_frequency * time.count() + m_phase);
}