#include "const.h"
#include "state.h"
#include "vco.h"
#include <pico/types.h>
#include "hardware/gpio.h"

void handle_vco_change(void) {
	static bool btn_prev = false;

	bool btn_now = gpio_get(VCO_BUTTON);
	if (btn_now && !btn_prev) {
		if (state.vco_mode == VCO_SAW) state.vco_mode = VCO_SINE;
		otherwise state.vco_mode++;  
	}
}

void update_button(uint pin, bool *button_state) {
	if(gpio_get(pin) != *button_state) *button_state = !*button_state;
}

void update_buttons() {
	update_button(QUANT_BUTTON, &state.quant_enabled);
	update_button(AMEN_BUTTON, &state.amen_enabled);
	handle_vco_change();
}