#include <Arduino.h>
#include "buttons.hpp"
#include "scheduler.hpp"
#include "data.hpp"
#include "tones.hpp"
#include "dac.hpp"
#include "indicator.hpp"

const int PIN_NEXT = 8;

static bool state_next = 1;
static uint32_t addr_next = 0;

void buttons::init() {
	pinMode(PIN_NEXT, INPUT_PULLUP);
}

static void on_next() {
	switch(scheduler::state) {
	case scheduler::State::play:
		scheduler::state = scheduler::State::skip;
		indicator::reset();
		data::jump(addr_next);
		tones::clear_all();
		dac::reset();
		break;
	case scheduler::State::pause:
		scheduler::state = scheduler::State::play;
		break;
	}
}

void buttons::update() {
	if(!digitalRead(PIN_NEXT) && state_next) {
		delay(1);
		state_next = 0;
	}
	else if(digitalRead(PIN_NEXT) && !state_next) {
		delay(1);
		on_next();
		state_next = 1;
	}
}

void buttons::set_addr_next(uint32_t addr) {
	addr_next = addr;
}