#include <LiquidCrystal.h>


LiquidCrystal lcd(12, 11, 4, 5, 6, 7);

volatile boolean disp=0;
unsigned char cycle=1;
unsigned long time_run1=0;
unsigned long total_time_run1=0;
unsigned long time_stop1=0;
unsigned long total_time_stop1=0;
unsigned long time_run2=0;
unsigned long total_time_run2=0;
unsigned long time_stop2=0;
unsigned long total_time_stop2=0;
unsigned long time0=0;
unsigned long time_temp1=0;
unsigned long time_temp2=0;

void setup() {
  // Init
  Serial.begin(115200);

  lcd.begin(16, 2);

  // Print something
  lcd.setCursor(1, 0);
  lcd.print("Initialisation");
  lcd.setCursor(3, 1);
  lcd.print("controller");
  delay(1000);
  lcd.clear();

  lcd.setCursor(0, 0);
  lcd.print("Pump_1 OFF"); 
  lcd.setCursor(0, 1);
  lcd.print("Pump_2 OFF");

  pinMode(10, INPUT_PULLUP);
  pinMode(3, INPUT_PULLUP);
  pinMode(8, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(13, OUTPUT);

  digitalWrite(8, HIGH);
  digitalWrite(9, HIGH);

  attachInterrupt(1, change_disp, FALLING);
}

void loop() {

  
  if(digitalRead(10)==0 & cycle==1){
    time0=millis()/1000;
    time_temp2=time_stop2;
    lcd.setCursor(0, 0);
    lcd.print("Pump_1 ON       ");
    lcd.setCursor(0, 1);
    lcd.print("Pump_2 OFF      ");
    }
  if(digitalRead(10)==0 & cycle==0){
    time0=millis()/1000;
    time_temp1=time_stop1;
    lcd.setCursor(0, 0);
    lcd.print("Pump_1 OFF      ");
    lcd.setCursor(0, 1);
    lcd.print("Pump_2 ON       ");
    }
  if(digitalRead(10)==0 & cycle==2){
    time0=millis()/1000;
    time_temp2=time_stop2;
    lcd.setCursor(0, 0);
    lcd.print("Pump_1 ON       ");
    lcd.setCursor(0, 1);
    lcd.print("Pump_2 OFF      ");
    }
  while(digitalRead(10)==0)
    {
    
    digitalWrite(13,1);
    switch(cycle){
      case 1: {
        digitalWrite(8,LOW);
        time_stop1=0;
        time_stop2=time_temp2+millis()/1000-time0;
        lcd.setCursor(11, 1);
        disp_time(time_stop2);
        time_run1=millis()/1000-time0;
        lcd.setCursor(10, 0);
        disp_time(time_run1);} break;
      case 0: {
        digitalWrite(9,LOW);
        time_stop1=time_temp1+millis()/1000-time0;
        time_stop2=0;
        lcd.setCursor(11, 0);
        disp_time(time_stop1);
        time_run2=millis()/1000-time0;
        lcd.setCursor(10, 1);
        disp_time(time_run2);} break;
      case 2: {
        digitalWrite(8,LOW);
        time_stop1=0;
        time_stop2=time_temp2+millis()/1000-time0;
        lcd.setCursor(11, 1);
        disp_time(time_stop2);
        time_run1=millis()/1000-time0;
        lcd.setCursor(10, 0);
        disp_time(time_run1);} 
        }

    delay(500);
    }

  total_time_run1=total_time_run1+time_run1;
  time_run1=0;
  total_time_run2=total_time_run2+time_run2;
  time_run2=0;

  if(digitalRead(10)){
    time0=millis()/1000;
    time_temp1=time_stop1;
    time_temp2=time_stop2;

    lcd.setCursor(0, 0);
    lcd.print("Pump_1 OFF      ");
    lcd.setCursor(0, 1);
    lcd.print("Pump_2 OFF      ");
  }
  while(digitalRead(10))
    {
      digitalWrite(8,HIGH);
      digitalWrite(9,HIGH);

      lcd.setCursor(0, 0);
      lcd.print("Pump_1 OFF      "); 
      lcd.setCursor(0, 1);
      lcd.print("Pump_2 OFF      ");

      //lcd.setCursor(0, 1);
      //lcd.print("Pump_2 OFF");
      time_stop1=millis()/1000-time0+time_temp1;
      lcd.setCursor(11, 0);
      disp_time(time_stop1);
      time_stop2=millis()/1000-time0+time_temp2;
      lcd.setCursor(11, 1);
      disp_time(time_stop2);

      digitalWrite(13,1);
      delay(100);
      digitalWrite(13,0);
      delay(1000);

      if(digitalRead(3)==0){
        delay(200);

        lcd.setCursor(0, 0);
        lcd.print("Run time 1      ");
        lcd.setCursor(11, 0);
        disp_time(total_time_run1);

        lcd.setCursor(0, 1);
        lcd.print("Run time 2      ");
        lcd.setCursor(11, 1);
        disp_time(total_time_run2);
        delay(3000);
         }
    }
  delay(200);
  cycle++;
  if(cycle>2)
    cycle=0;
  Serial.println(!cycle);

}

void change_disp() {
  disp=!disp;
  Serial.println(disp);
}

 void disp_time(unsigned long sec) {
  int time_m;
  int time_s;
  if(sec>59){
    time_m=(sec % 3600ul)/60ul;
    time_s=sec-(time_m % 60ul)*60ul;
    lcd.print(time_m);
    lcd.print(":");
    if(time_s>9)
      lcd.print(time_s);
    else {
      lcd.print("0");
      lcd.print(time_s);
    }
  }
  else {
    time_s=(sec % 3600ul) % 60ul;
    if(time_s>9)
      lcd.print(time_s);
    else {
      lcd.print("0");
      lcd.print(time_s);
    }
    lcd.print("s");
  }
}