#include "U8glib.h"
#include <Bounce2.h>

U8GLIB_SSD1306_128X64 u8g(U8G_I2C_OPT_DEV_0 | U8G_I2C_OPT_NO_ACK | U8G_I2C_OPT_FAST); // Fast I2C / TWI

int progress = 0;

int buttonPin = 12;

int currentPlayer = 1;
extern volatile unsigned long previousMillis = 0;

void setup() {
  pinMode(buttonPin, INPUT_PULLUP);
  Serial.begin(9600);
  u8g.setFont(u8g_font_tpssb);
  u8g.setColorIndex(1);

  drawDisplay();

}

void loop() {

  int buttonState = digitalRead(buttonPin);
  //Serial.print(currentPlayer);
  //Serial.println(buttonState);


  if (buttonState == LOW) // light the LED
  {
    switch (currentPlayer) {
      case 1: {
          currentPlayer = 2;
          break;
        }
      case 2: {
          currentPlayer = 1;
          break;
        }
    }
    delay(500);
    resetTurnTime();
    drawDisplay();
  }

  drawDisplay();
}

void resetTurnTime() {
  previousMillis = millis();
}

void drawDisplay() {
  u8g.firstPage();
  enum {BufSize = 9}; // If a is short use a smaller number, eg 5 or 6
  char buf[BufSize];
  snprintf(buf, BufSize, "%d", currentPlayer);
  String player = String(buf);

  unsigned long mill = (millis() - previousMillis);
  unsigned long seconds = mill / 1000;
  unsigned long minutes = seconds / 60;
  /*Serial.print(mill);
    Serial.print(" ");
    Serial.print(turnTime);
    Serial.print(" ");
    Serial.print(previousMillis);
    Serial.println();*/
  seconds %= 60;
  minutes %= 60;
  snprintf(buf, BufSize, "%02d", minutes);
  String time = String(buf) + String(":");
  snprintf(buf, BufSize, "%02d", seconds);
  time = time + String(buf);
  do {

    u8g.setFont(u8g_font_fur30r);
    u8g.drawStr(50, 35, player.c_str());
    u8g.drawLine(10, 45, 110, 45);
    u8g.setFont(u8g_font_tpssb);
    u8g.drawStr(40, 60, "Current Player");

    switch (currentPlayer) {
      case 1: {
          u8g.drawStr(10, 25, "<<<");
          break;
        }
      case 2: {
          u8g.drawStr(90, 25, ">>>");
          break;
        }
    }

    //Serial.println(time);
    u8g.drawStr(0, 60, time.c_str());
  } while ( u8g.nextPage() );
}