// include the library code:
#include <LiquidCrystal.h>
#include <avr/wdt.h>

// input and output assignments
const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
const int intervalButton = 25;
static const int buttonPin = 13;
int previousButtonState = LOW;
int currentButtonState = LOW;

// Boolean Comparisons (True/False Statements)
bool jobState = false;
bool biFold = false;
bool solidCore = false;
bool hollowCore = false;



// Variables
unsigned long hollowCoreTime = 3000;
unsigned long biFoldTime = 6000;
unsigned long solidCoreTime = 9000;
unsigned long buttonPressTime;
unsigned long buttonPressDuration;
unsigned long currentTime;
unsigned long pressTime;


LiquidCrystal lcd(rs, en, d4, d5, d6, d7);

void readButtonState() {

  if (currentButtonState == LOW && jobState == false) {
    lcd.setCursor(1, 0);
    lcd.print("Awaiting Input");
  
  }

  if(currentTime - buttonPressTime > intervalButton){
    int currentButtonState = digitalRead(buttonPin);

    if (currentButtonState == HIGH && previousButtonState == LOW) {
      buttonPressTime = currentTime;
      previousButtonState = HIGH;
    } 
    
      if (hollowCore == false && previousButtonState == HIGH) {
        if (currentTime - buttonPressTime < hollowCoreTime && buttonPressTime > 0){
          lcd.clear();
          lcd.setCursor(2, 0);
          lcd.print("Hollow  Core");
          hollowCore = true;
          biFold = false;
          solidCore = false;
          jobState = true;

        }  
      }
        
      if (hollowCore == true && previousButtonState == HIGH) {
        if (currentTime - buttonPressTime < biFoldTime && currentTime - buttonPressTime > hollowCoreTime){
          lcd.clear();
          lcd.setCursor(4, 0);
          lcd.print("Bi  Fold");
          hollowCore = false;
          biFold = true;
          solidCore = false;
          jobState = true;
        }
      }
      if (previousButtonState == HIGH && biFold == true) {
        if (currentTime - buttonPressTime > biFoldTime) {
          lcd.clear();
          lcd.setCursor(3, 0);
          lcd.print("Solid Core");
          hollowCore = false;
          biFold = false;
          solidCore = true;
          jobState = true;
          
        }
      }    


  if (currentButtonState == LOW && jobState == true) {
    delay(1500);
    
    if (hollowCore == true){
      lcd.clear();
      lcd.setCursor(2, 0);
      lcd.print("Hollow  Core");
      lcd.setCursor(2, 1);
      lcd.print("Job  Running");
      digitalWrite(8, HIGH);
      delay(10000);
      digitalWrite(8, LOW);
      jobState = false;
      hollowCore = false;
      lcd.clear();
      buttonPressTime = currentTime;
      previousButtonState = LOW;

      
    }
    
    if (biFold == true){
      lcd.clear();
      lcd.setCursor(4, 0);
      lcd.print("Bi  Fold");
      lcd.setCursor(2, 1);
      lcd.print("Job  Running");
      digitalWrite(9, HIGH);
      delay(10000);
      digitalWrite(9, LOW);
      jobState = false;
      biFold = false;
      lcd.clear();
      buttonPressTime = currentTime;
      previousButtonState = LOW;                
    }
    
    if (solidCore == true){
      lcd.clear();
      lcd.setCursor(3, 0);
      lcd.print("Solid Core");
      lcd.setCursor(2, 1);
      lcd.print("Job  Running");
      digitalWrite(10, HIGH);
      delay(10000);
      digitalWrite(10, LOW);
      jobState = false;
      solidCore = false;
      lcd.clear();
      buttonPressTime = currentTime;
      previousButtonState = LOW;        
    }
    
    }
    
  }

}

void setup() {
  // set up the LCD's number of columns and rows:
  lcd.begin(16, 2);
  // Print a message to the LCD.
  lcd.setCursor(4, 0);
  lcd.print("Masonite");
  lcd.setCursor(1, 2);
  lcd.print("Device Booting");
  // pin assignments
  pinMode(8, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(10, OUTPUT);
  delay(2000);
  lcd.clear();

}

void loop() {
  currentTime = millis();
  readButtonState();
  delay(5);
  
}