/*
 * Copyright 2017-2024 Oleg Borodin <onborodin@gmail.com>
 */

#include <stdint.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>

#include <avr/interrupt.h>
#include <util/delay.h>

#include <tool.h>
#include <eeprom.h>
#include <disp.h>
#include <timer.h>
#include <adc.h>
#include <button.h>

#include <contr.h>

button_t volume_button;

typedef struct {
    uint8_t volume;
    bool volume_updated;
} contr_t;

contr_t contr;

void contr_init(void) {
    contr.volume = 0;
    contr.volume_updated = false;
}

void contr_setup(void) {
}

ISR(TIMER0_OVF_vect) {
    button_handle(&volume_button);
}


void contr_show_logo(void) {
    disp_clear();
    char* dispstr = "Made by R2FDX";
    disp_string(1, 1, dispstr);
    _delay_ms(100);
    disp_clear();
}

#define CONTR_DISPSTR_SIZE 16

void contr_show_volume(void) {
    char dispstr[CONTR_DISPSTR_SIZE];
    sprintf(dispstr, "%4d", contr.volume);
    disp_string(1, 1, dispstr);
}

#define MAX_VOLUME 64

void contr_calc_volume(void) {
    if (button_was_pressed(&volume_button) == true) {
        contr.volume++;
        contr.volume_updated = true;
    }
    if (contr.volume > MAX_VOLUME) {
        contr.volume = 0;
        contr.volume_updated = true;
    }
}

void contr_main(void) {
    contr_show_logo();
    uint16_t counter = 0;
    while (true) {
        counter++;
        _delay_ms(10);
        contr_calc_volume();
        contr_show_volume();
    }
}