#include <GyverOLED.h>
#include <EncButton.h>

#define EB_DEB_TIME 50
Button btn1(5);
Button btn2(4);

GyverOLED<SSD1306_128x64, OLED_BUFFER> oled;

void setup() {
  oled.init();
  oled.setContrast(100);
}

void loop () {
  btn1.tick();
  btn2.tick();
  oled.clear();

  static uint8_t hours = 9;
  static uint8_t minutes = 1;

  static uint8_t h0;
  static uint8_t h1;
  static uint8_t m0;
  static uint8_t m1;

  if (hours < 10) h0 = 0;
  else h0 = hours / 10;
  h1 = hours % 10;

  if (minutes < 10) m0 = 0;
  else m0 = minutes / 10;
  m1 = minutes % 10;

  if (btn1.click() or btn1.holding()) {
    if (hours == 23) hours = 0;
    else hours += 1;
  }

  if (btn2.click() or btn2.holding()) {
    if (minutes == 59) minutes = 0;
    else minutes += 1;
  }


  switch (h0) {
    case 0: zero(0); break;
    case 1: one(0); break;
    case 2: two(0); break;
    case 3: three(0); break;
    case 4: four(0); break;
    case 5: five(0); break;
    case 6: six(0); break;
    case 7: seven(0); break;
    case 8: eight(0); break;
    case 9: nine(0); break;
  }

  switch (h1) {
    case 0: zero(1); break;
    case 1: one(1); break;
    case 2: two(1); break;
    case 3: three(1); break;
    case 4: four(1); break;
    case 5: five(1); break;
    case 6: six(1); break;
    case 7: seven(1); break;
    case 8: eight(1); break;
    case 9: nine(1); break;
  }

  switch (m0) {
    case 0: zero(2); break;
    case 1: one(2); break;
    case 2: two(2); break;
    case 3: three(2); break;
    case 4: four(2); break;
    case 5: five(2); break;
    case 6: six(2); break;
    case 7: seven(2); break;
    case 8: eight(2); break;
    case 9: nine(2); break;
  }

  switch (m1) {
    case 0: zero(3); break;
    case 1: one(3); break;
    case 2: two(3); break;
    case 3: three(3); break;
    case 4: four(3); break;
    case 5: five(3); break;
    case 6: six(3); break;
    case 7: seven(3); break;
    case 8: eight(3); break;
    case 9: nine(3); break;
  }

  oled.roundRect(62, 10, 65, 13, OLED_FILL);
  oled.roundRect(62, 35, 65, 38, OLED_FILL);

  oled.setScale(1);
  oled.setCursorXY(0, 56);
  oled.print("ПН 12.03.2023");

  oled.rect(85, 56, 127, 62, OLED_STROKE);
  oled.rect(86, 57, 110, 61, OLED_FILL);

  oled.update();
}

void createRect(byte x, byte y, byte n) {
  byte shift;
  if (n == 2 or n == 3) shift = 6;
  else shift = 0;
  oled.rect(n * 32 + shift + (x * 9), 0 + (y * 10), n * 32 + shift + 7 + (x * 9), 0 + 8 + (y * 10), OLED_FILL);
}

void zero(byte razr) {
  createRect(0, 0, razr);
  createRect(1, 0, razr);
  createRect(2, 0, razr);
  createRect(0, 1, razr);
  createRect(2, 1, razr);
  createRect(0, 2, razr);
  createRect(2, 2, razr);
  createRect(0, 3, razr);
  createRect(2, 3, razr);
  createRect(0, 4, razr);
  createRect(1, 4, razr);
  createRect(2, 4, razr);
}

void one(byte razr) {
  createRect(0, 0, razr);
  createRect(1, 0, razr);
  createRect(1, 1, razr);
  createRect(1, 2, razr);
  createRect(1, 3, razr);
  createRect(0, 4, razr);
  createRect(1, 4, razr);
  createRect(2, 4, razr);
}

void two(byte razr) {
  createRect(0, 0, razr);
  createRect(1, 0, razr);
  createRect(2, 0, razr);
  createRect(2, 1, razr);
  createRect(0, 2, razr);
  createRect(1, 2, razr);
  createRect(2, 2, razr);
  createRect(0, 3, razr);
  createRect(0, 4, razr);
  createRect(1, 4, razr);
  createRect(2, 4, razr);
}

void three(byte razr) {
  createRect(0, 0, razr);
  createRect(1, 0, razr);
  createRect(2, 0, razr);
  createRect(2, 1, razr);
  createRect(0, 2, razr);
  createRect(1, 2, razr);
  createRect(2, 2, razr);
  createRect(2, 3, razr);
  createRect(0, 4, razr);
  createRect(1, 4, razr);
  createRect(2, 4, razr);
}

void four(byte razr) {
  createRect(0, 0, razr);
  createRect(2, 0, razr);
  createRect(0, 1, razr);
  createRect(2, 1, razr);
  createRect(0, 2, razr);
  createRect(1, 2, razr);
  createRect(2, 2, razr);
  createRect(2, 3, razr);
  createRect(2, 4, razr);
}

void five(byte razr) {
  createRect(0, 0, razr);
  createRect(1, 0, razr);
  createRect(2, 0, razr);
  createRect(0, 1, razr);
  createRect(0, 2, razr);
  createRect(1, 2, razr);
  createRect(2, 2, razr);
  createRect(2, 3, razr);
  createRect(0, 4, razr);
  createRect(1, 4, razr);
  createRect(2, 4, razr);
}

void six(byte razr) {
  createRect(0, 0, razr);
  createRect(1, 0, razr);
  createRect(2, 0, razr);
  createRect(0, 1, razr);
  createRect(0, 2, razr);
  createRect(1, 2, razr);
  createRect(2, 2, razr);
  createRect(0, 3, razr);
  createRect(2, 3, razr);
  createRect(0, 4, razr);
  createRect(1, 4, razr);
  createRect(2, 4, razr);
}

void seven(byte razr) {
  createRect(0, 0, razr);
  createRect(1, 0, razr);
  createRect(2, 0, razr);
  createRect(2, 1, razr);
  createRect(2, 2, razr);
  createRect(2, 3, razr);
  createRect(2, 4, razr);
}

void eight(byte razr) {
  createRect(0, 0, razr);
  createRect(1, 0, razr);
  createRect(2, 0, razr);
  createRect(0, 1, razr);
  createRect(2, 1, razr);
  createRect(0, 2, razr);
  createRect(1, 2, razr);
  createRect(2, 2, razr);
  createRect(0, 3, razr);
  createRect(2, 3, razr);
  createRect(0, 4, razr);
  createRect(1, 4, razr);
  createRect(2, 4, razr);
}

void nine(byte razr) {
  createRect(0, 0, razr);
  createRect(1, 0, razr);
  createRect(2, 0, razr);
  createRect(0, 1, razr);
  createRect(2, 1, razr);
  createRect(0, 2, razr);
  createRect(1, 2, razr);
  createRect(2, 2, razr);
  createRect(2, 3, razr);
  createRect(0, 4, razr);
  createRect(1, 4, razr);
  createRect(2, 4, razr);
}