#include "U8glib.h"

U8GLIB_SSD1306_128X64 u8g(U8G_I2C_OPT_DEV_0 | U8G_I2C_OPT_NO_ACK | U8G_I2C_OPT_FAST); // Fast I2C / TWI
const int maxProgressResetDelai = 2000;

int progress = 0;
int maxProgress = 205;
int resetDelai = maxProgressResetDelai;
bool isMaxReset = true; 



void setup() {
  u8g.setFont(u8g_font_tpssb);
  u8g.setColorIndex(1);
  pinMode(A0, INPUT);
}

void loop() {
  u8g.firstPage();
  do {

    if (progress > maxProgress && progress > 205 ) {
      maxProgress = progress;
    } else if (progress < 205 && isMaxReset == true ) {
      isMaxReset = false;
    }

    if (inBoost() &&  isMaxReset == false) {
      isMaxReset = true;
      maxProgress = 205;
    }

    u8g.setPrintPos(0,45);
    u8g.print(pressureFromVoltage(progress));
    u8g.drawStr(30, 45, "PSI");
    // u8g.setPrintPos(80,45);
    // u8g.print(progress);

    u8g.setPrintPos(0, 60 );
    u8g.print(pressureFromVoltage(maxProgress));
    u8g.drawStr(30, 60, "Max PSI");
    // u8g.setPrintPos(80, 60 );
    // u8g.print(maxProgress);

    u8g.drawFrame(0, 10, 127, 20);
    if (inBoost()) {
      u8g.drawBox(30, 15, map(progress,205,1023,0,94), 10);
    } else {
      u8g.drawBox(map(progress,205,0,30,3),15, map(progress,205,0,3,30),10);
    }
  } while ( u8g.nextPage() );

  progress = analogRead(A0);
}

float voltage() {
  return progress * (5 /1023.0);
}
bool inBoost() {
  return progress > 205;
}

long pressureFromVoltage(int value) {
  long pressure = 0;
  if (value >= 205) {
    pressure = map(value, 205, 1023,0,51);
  } else {
    pressure = map(value,205,0,0,-15);
  }

  return pressure;

}