#include "RTClib.h"
RTC_DS1307 rtc;

// tt - primary tank
// ut - Secondary/Underground tank
const int m1Pin = 24; // Pin number for m1 with a normally open solenoid valve
const int m2Pin = 26; // Pin number for m2
const int s1Pin = 30; // Pin number for s1 a normally closed solenoid valve
const int s2Pin = 28; // Pin number for s2 a normally closed solenoid valve
const int s3Pin = 31; // Pin number for s3 a normally closed solenoid valve
const int m1led = 27;
const int m2led = 29;
const int ttled = 23;
const int utled = 25;
const int T1 = 49;
const int T2 = 51;
int f = 22;


const int utppin = A11; // pin number for utPressure Sensor
const int ttppin = A3; // pin number for ttPressure Sensor

const float max = 900; //1023
const float ttt = 204.6;
const float utt = 512;
const int aut = 22; //for auto Mode
const int faul = 2; // fault finding

void setup() {
  if (! rtc.begin()) {
    Serial.println("Couldn't find RTC");
    Serial.flush();
    abort();
  }
  Serial.begin(115200);


  pinMode(m1Pin, OUTPUT);
  pinMode(m2Pin, OUTPUT);
  pinMode(s1Pin, OUTPUT);
  pinMode(s2Pin, OUTPUT);
  pinMode(s3Pin, OUTPUT);
  pinMode(ttled, OUTPUT);
  pinMode(utled, OUTPUT);
  pinMode(m1led, OUTPUT);
  pinMode(m2led, OUTPUT);
  pinMode(T1, INPUT_PULLUP);
  pinMode(T2, INPUT_PULLUP);
  pinMode(aut , INPUT_PULLUP);
  pinMode(faul , INPUT_PULLUP);
  pinMode(LED_BUILTIN, OUTPUT);

// 6= weight of water,tank,DUST PARTICLES - HEAVY WEIGHT

}

void loop() {
  int F=22;
  DateTime now = rtc.now();
  int autto = !(digitalRead(aut));
  int fault = !(digitalRead(faul));
  int tank1 = !(digitalRead(T1));
  int tank2 = !(digitalRead(T2));
  int pressure2 = analogRead(utppin);
  int pressure1 = analogRead(ttppin);
  int hr = now.hour();
  
  //mode selection
  if(autto=1 && fault==0){
  pressure2 = analogRead(utppin);
  pressure1 = analogRead(ttppin);
  autto = !(digitalRead(aut));
  fault = !(digitalRead(faul));
    if(pressure1<ttt){
      while(pressure1<max){
        pressure2 = analogRead(utppin);
        pressure1 = analogRead(ttppin);
        autto = !(digitalRead(aut));
        fault = !(digitalRead(faul));
        if (autto==1 && fault==0){
          if ((hr >= 5 && hr < 9) || (hr >= 17 && hr < 21)) // Emmergency Condition-Expected to have high demand for washroom ,bathroom, kitchen
          {
            F=22;
            if(pressure2>0){
              F=01;
              Serial.println("From UGtank + BoreWell to Primary Tank");
            }
            else if(pressure2==0){
            F=00;
              Serial.println("From BoreWell to Primary Tank");
            }
          }
          else{ //Normal Timings
            F=22;
            if(pressure2>0){
              F=11;
              Serial.println("From UGtank to Primary Tank");
            }
            else if(pressure2==0){
              F=00;
              Serial.println("From BoreWell to Primary Tank");
            }
          }
        }
        else{
          break; //other modes
        }
      Output(F);
      F=22;
     }
    }
    if(pressure2<utt){
      while(pressure2<max){
        pressure2 = analogRead(utppin);
        pressure1 = analogRead(ttppin);
        autto = !(digitalRead(aut));
        fault = !(digitalRead(faul));
        if(pressure1<ttt){
          break;
        }
        if (autto==1 && fault==0){
          F=10;
          Serial.println("From BoreWell to UndergroundTank(Sump)");
        }
        else{
          break;
        }
        Output(F);
        F=22;
      }
    }
  }
    
  else if(autto==0 && fault==0){

  }
  else if(autto==0 && fault==1){

  }
}









void Output(int f) {
  if (f == 00) { // source to tt
    digitalWrite(m2Pin, HIGH); // m2 = 1
    digitalWrite(m2led, HIGH);
    digitalWrite(s3Pin, HIGH); // s3 = 1
    digitalWrite(m1Pin, LOW);  // m1 = 0
    digitalWrite(m1led, LOW);
    digitalWrite(s1Pin, LOW);  // s1 = 0
    digitalWrite(s2Pin, LOW);  // s2 = 0
    digitalWrite(ttled, HIGH);
    digitalWrite(utled, LOW);
  } 
  else if (f == 10) {  // source to ut
    digitalWrite(m2Pin, HIGH); // m2 = 1
    digitalWrite(m2led, HIGH);
    digitalWrite(s1Pin, HIGH); // s1 = 1
    digitalWrite(m1Pin, LOW);  // m1 = 0
    digitalWrite(m1led, LOW);
    digitalWrite(s2Pin, LOW);  // s2 = 0
    digitalWrite(s3Pin, LOW);  // s3 = 0
    digitalWrite(utled, HIGH); 
    digitalWrite(ttled, LOW);
  } 
  else if (f == 01) { // source and ut to tt
    digitalWrite(m1Pin, HIGH); // m1 = 1
    digitalWrite(m1led, HIGH);
    digitalWrite(s2Pin, HIGH); // s2 = 1
    digitalWrite(m2Pin, HIGH);  // m2 = 1
    digitalWrite(m2led, HIGH);
    digitalWrite(s1Pin, LOW);  // s1 = 0
    digitalWrite(s3Pin, HIGH);  // s3 = 1
    digitalWrite(ttled, HIGH); 
  } 
  else if (f == 11) { // ut to tt
    digitalWrite(m1Pin, HIGH); // m1 = 1
    digitalWrite(m1led, HIGH);
    digitalWrite(s2Pin, HIGH); // s2 = 1
    digitalWrite(m2Pin, LOW);  // m2 = 0
    digitalWrite(m2led, LOW);
    digitalWrite(s1Pin, LOW);  // s2 = 1
    digitalWrite(s3Pin, LOW);  // s3 = 0
    digitalWrite(ttled, HIGH); 
    digitalWrite(utled, LOW);
  } 
  else if (f == 22) { 
    digitalWrite(m1Pin, LOW); 
    digitalWrite(m1led, LOW);
    digitalWrite(s2Pin, LOW); 
    digitalWrite(m2Pin, LOW);  
    digitalWrite(m2led, LOW);
    digitalWrite(s1Pin, LOW);  
    digitalWrite(s3Pin, LOW);  
    digitalWrite(ttled, LOW);
    digitalWrite(utled, LOW); 
  }
}