#include <Arduino.h>
#include <U8g2lib.h>
#include <Encoder.h>
//#include "Adafruit_MAX31855.h"
#include "max6675.h"

#ifdef U8X8_HAVE_HW_SPI
#include <SPI.h>
#endif
#ifdef U8X8_HAVE_HW_I2C
#include <Wire.h>
#endif

//U8G2_ST7920_128X64_1_HW_SPI(rotation, cs [, reset]) [page buffer, size = 128 bytes]
//U8G2_ST7920_128X64_2_HW_SPI(rotation, cs [, reset]) [page buffer, size = 256 bytes]
//U8G2_ST7920_128X64_F_HW_SPI(rotation, cs [, reset]) [full framebuffer, size = 1024 bytes]
U8G2_ST7920_128X64_2_HW_SPI u8g2(U8G2_R0, /* CS=*/ 10, /* reset=*/ 8);

Encoder rotEncoder(2, 3);

const int buzzer = 5;

#define MAXDO   7
#define MAXCS   8
#define MAXCLK  9

MAX6675 thermocouple(MAXCLK, MAXCS, MAXDO);

void setup(void) {
  Serial.begin(9600);
  Serial.println("Hardware Test:");

  pinMode(buzzer, OUTPUT);

  u8g2.begin();  

  Serial.println("Buzzer Test");
  tone(buzzer, 8000, 500);

    Serial.print("C = "); 
    Serial.println(thermocouple.readCelsius());
    Serial.print("F = ");
    Serial.println(thermocouple.readFahrenheit());
}

long EncPos = 0;

void loop(void) {
  long newEncPos;
  newEncPos = rotEncoder.read();

  if (newEncPos != EncPos) {
    Serial.print("Encoder position = ");
    Serial.print(newEncPos);
    Serial.println();
    EncPos = newEncPos;
  }
  
  u8g2.firstPage();
  do {
    u8g2.drawLine(0,15,128,15);
    u8g2.drawLine(64,16,64,48);
    u8g2.drawLine(0,49,128,49);
    u8g2.setFont(u8g2_font_ncenB10_tr);
    u8g2.drawStr(0,11,"Ready to flow!");
    u8g2.setFont(u8g2_font_ncenB18_tr);
    u8g2.drawStr(0,47,"122°C");
  } while ( u8g2.nextPage() );
  //delay(1000);
}