#include "LiquidCrystal.h"
#include <EEPROM.h>


LiquidCrystal lcd( 8,  9,  4,  5,  6,  7);
int count = 0;        //cycle count saved to EEProm each cycle
int maxCount = 50;
int EEaddress = 0;   //EEProm location to store count
bool Resume = false;
bool Pause = false;  // Not used in this version
bool Hault = false;
bool Restart = false;
bool Select = false;
bool operate =  false;
const int Press = 13; // cylinder relay connected to D13

void setup() {
 lcd.begin(16, 2);
 lcd.setCursor(0,0);
 lcd.print("   Foot Brake   ");
 lcd.setCursor(0,1);
 lcd.print("    Actuator    ");
 delay(1000);
 lcd.setCursor(0,0);
 lcd.print(" LEFT - ReStart ");
 lcd.setCursor(0,1);
 lcd.print(" RIGHT - Resume ");
 pinMode(Press, OUTPUT);
 count = 0;
}

void loop() {
  
  readSwitches();
  if (Resume == true) {
    Resume = false;
    EEPROM.get(EEaddress, count);  //retrieve count
    delay(1000);
    operate = true;
  }

  if (Pause == true) {
    Pause = false;  //ignore this button
    }

  if (Hault == true) {
    Hault = false;
    operate = false;
    lcd.setCursor(0,0);
    lcd.print("   Foot Brake   ");
    lcd.setCursor(0,1);
    lcd.print("    Actuator    ");
    delay(1000);
    lcd.setCursor(0,0);
    lcd.print(" LEFT - ReStart ");
    lcd.setCursor(0,1);
    lcd.print(" RIGHT - Resume ");
    }

  if (Restart == true) {
    Restart = false;
    count = 0;  //reset count
    operate = true;
    }

  if (Select == true) {
    Select = false;  //ignore this button
    }

  if (operate == true) {
    pressureCycle();
    }
} 

void readSwitches() {
   int x;
 x = analogRead (0);
  if (x < 60) {  //RIGHT - Resume
 Resume = true;
 }
 else if (x < 200){ //UP - Pause
 Pause = true;
 }
 else if (x < 400){ //DOWN - Hault
  Hault = true;
 }
 else if (x < 600){ //LEFT - Restart
 Restart = true;
 }
 else if (x < 800){ //SELECT - Select
 Select = true;
 }
}

void pressureCycle() {
  if (count < maxCount) {
    lcd.setCursor(0,0);
    lcd.print("Cycle           ");
    lcd.setCursor(7,0);
    lcd.print(count);
    lcd.setCursor(0,1);
    lcd.print("    RUNNING     ");
    digitalWrite(Press,HIGH);
    delay(2500); // hold pedal down 2.5 seconds
    digitalWrite(Press,LOW); //release pedal
    delay(2000);
    count = count + 1;
    EEPROM.put(EEaddress, count); // save count
  }
  else {
    Hault = true;
    count = 0;  //reset count b/c maxCount reached
  }  
}