#include <Arduino.h>
#include <U8g2lib.h>
#include <Wire.h>

// Constructor for SSD1306 128x64 OLED with hardware I2C
// U8G2_R0 = no rotation, U8X8_PIN_NONE = no reset pin
U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, /* reset=*/U8X8_PIN_NONE);
static const unsigned char image_hand_thumbs_up_bits[] = { 0x00, 0x08, 0x00, 0x14, 0x00, 0x14, 0x00, 0x12, 0x00, 0x0a, 0x00, 0x09, 0x80, 0x7c, 0x5f, 0xc0, 0x31, 0xa0, 0x11, 0xc0, 0x11, 0xa0, 0x11, 0xc0, 0x11, 0xa0, 0x15, 0x40, 0x71, 0x60, 0x9f, 0x3f };
static const unsigned char image_hourglass3_bits[] = { 0x00, 0x00, 0x00, 0xe0, 0xff, 0x0f, 0x20, 0x00, 0x08, 0xc0, 0xff, 0x07, 0x80, 0x00, 0x02, 0x80, 0x00, 0x02, 0x80, 0x00, 0x02, 0x80, 0x00, 0x02, 0x00, 0x01, 0x01, 0x00, 0x82, 0x00, 0x00, 0x44, 0x00, 0x00, 0x28, 0x00, 0x00, 0x28, 0x00, 0x00, 0x44, 0x00, 0x00, 0x92, 0x00, 0x00, 0x39, 0x01, 0x80, 0x7c, 0x02, 0x80, 0xfe, 0x02, 0x80, 0xfe, 0x02, 0x80, 0x00, 0x02, 0xc0, 0xff, 0x07, 0x20, 0x00, 0x08, 0xe0, 0xff, 0x0f, 0x00, 0x00, 0x00 };

void setup() {
  // Initialize I2C (Wire) - megaTinyCore uses default pins PA1 (SDA) and PA2 (SCL)
  Wire.begin();
  // Initialize the display
  u8g2.begin();
}

void loop() {
  u8g2.setFontMode(1);
  u8g2.setBitmapMode(1);
  u8g2.setFont(u8g2_font_6x13_tr);

  u8g2.clearBuffer();
  u8g2.drawStr(28, 10, "Great job!");
  u8g2.sendBuffer();
  delay(500);

  u8g2.clearBuffer();
  u8g2.drawXBM(40, 21, 16, 16, image_hand_thumbs_up_bits);
  u8g2.sendBuffer();
  delay(500);

  u8g2.clearBuffer();
  u8g2.drawXBM(47, 30, 24, 24, image_hourglass3_bits);
  u8g2.sendBuffer();
  delay(1500);
}