#include <LiquidCrystal_I2C.h>
#include <OneWire.h>
#include <DallasTemperature.h>

#define inNastavTepChladic   A0
#define inNastavTepOdpad     A2
#define inNastavHystereze    A1
int outLed12_otevrenAut = 12;
int outLed10_zavrenAut = 10;
int outLed11_ventilVyp = 11;
int outLed5_otevrenMan = 5;
int outLed3_zavrenMan = 3;
int outLed4_provoz = 4;
int outVentil8 = 8;
int inPrepinac6 = 6;
int inPrepinac7 = 7;
const int inTeplomer9 = 9;

float chladicTepDalas;
float odpadTepDalas;

float tepChladicVal = 0;
float tepChladicTep;
float tepOdpadVal = 0;
float tepOdpadTep;
float tepHysterezeVal = 0;
float tepHystereze;


int bojlerTep;
int rozdilTeploty = 0;
int rozdilTeplotyVent = 0;

int zapnutiVal = 0;
int vypnutiVal = 0;
int zapnutiHod = 0;
int vypnutiHod = 0;
int zapnutiHodVent = 10;

boolean prepinacAuto = false;
boolean prepinacManualOtevreno = false;
boolean prepinacManualzavreno = false;
boolean ventilOtevren = false;
boolean cekejPoStartu = true;

//dallas
OneWire oneWireDS(inTeplomer9);
DallasTemperature senzoryDS(&oneWireDS);

// Set the LCD address to 0x27 for a 20 chars and 4 line display
LiquidCrystal_I2C lcd(0x27, 16, 2);


void setup() {
  Serial.begin(9600);

  pinMode(inPrepinac6, INPUT_PULLUP);
  pinMode(inPrepinac7, INPUT_PULLUP);
  pinMode(outLed12_otevrenAut, OUTPUT);
  pinMode(outLed10_zavrenAut, OUTPUT);
  pinMode(outLed11_ventilVyp, OUTPUT);
  pinMode(outLed5_otevrenMan, OUTPUT);
  pinMode(outLed3_zavrenMan, OUTPUT);   
  pinMode(outLed4_provoz, OUTPUT); 
  pinMode(outVentil8, OUTPUT);  
  
  digitalWrite(outLed12_otevrenAut, HIGH);
  digitalWrite(outLed10_zavrenAut, HIGH);
  digitalWrite(outLed11_ventilVyp, LOW);
  digitalWrite(outLed5_otevrenMan, LOW);
  digitalWrite(outLed3_zavrenMan, LOW);
  digitalWrite(outLed4_provoz, LOW);
  digitalWrite(outVentil8, LOW);

  // zapnutí komunikace knihovny s teplotním čidlem
  senzoryDS.begin();
  
  // initialize the LCD
  //lcd.begin();      //
  lcd.init();      // 
  lcd.backlight();  // 
  zobrazHodnoty();
  
}

void loop() {
  zobrazHodnoty();

  if (cekejPoStartu == true) {
    Serial.print(" cekej ");
    delay(5000);
    cekejPoStartu = false;
  }       

  tepChladicVal = analogRead(inNastavTepChladic);
  tepOdpadVal = analogRead(inNastavTepOdpad);
  tepHysterezeVal = analogRead(inNastavHystereze);

  tepChladicTep = mapFloat(tepChladicVal, 0, 1023, 15, 30);
  tepOdpadTep = mapFloat(tepOdpadVal, 0, 1023, 10, 30);
  tepHystereze = mapFloat(tepHysterezeVal, 0, 1023, 0, 1);

  ///// wokwi
  const float BETA = 3950;

  int chladicVal2 = analogRead(A6);
  int odpadVal2 = analogRead(A7);
  chladicTepDalas = 1 / (log(1 / (1023. / chladicVal2 - 1)) / BETA + 1.0 / 298.15) - 253.15;
  odpadTepDalas = 1 / (log(1 / (1023. / odpadVal2 - 1)) / BETA + 1.0 / 298.15) - 253.15;
  //// wokwi
  
  // načtení informací ze všech připojených čidel na daném pinu
  senzoryDS.requestTemperatures();
  //chladicTepDalas = senzoryDS.getTempCByIndex(0); 
  //odpadTepDalas = senzoryDS.getTempCByIndex(1);
  
  
  int prepinac6Val = digitalRead(inPrepinac6);
  int prepinac7Val = digitalRead(inPrepinac7);

  Serial.print(" 6: ");
  Serial.print(prepinac6Val);
  Serial.print(" 7: ");
  Serial.print(prepinac7Val);
  Serial.print(" hys: ");
  Serial.println(tepHystereze);


  // vypni vse D6=1 D7=1
  if (prepinac6Val == 1 && prepinac7Val == 1 ) {
    prepinacManualOtevreno = false;
    prepinacManualzavreno = false;
    prepinacAuto = false;
    digitalWrite(outLed4_provoz, LOW);
    digitalWrite(outLed5_otevrenMan, LOW);
    digitalWrite(outLed3_zavrenMan, LOW);
    digitalWrite(outVentil8, LOW);
    digitalWrite(outLed12_otevrenAut, HIGH);
    digitalWrite(outLed10_zavrenAut, HIGH);
    digitalWrite(outLed11_ventilVyp, LOW);
  }

  // manual-otevreno  D6=0 D7=1
  if (prepinac6Val == 0 && prepinac7Val == 1 && prepinacManualOtevreno == false) {
    prepinacManualOtevreno = true;
    prepinacManualzavreno = false;
    prepinacAuto = false;
    digitalWrite(outLed4_provoz, LOW);
    digitalWrite(outLed5_otevrenMan, HIGH);
    digitalWrite(outLed3_zavrenMan, LOW);
    digitalWrite(outVentil8, HIGH);
    digitalWrite(outLed12_otevrenAut, LOW);
    digitalWrite(outLed10_zavrenAut, HIGH);
    digitalWrite(outLed11_ventilVyp, LOW);
  }

  // manual-zavreno  D6=1 D7=0
  if (prepinac6Val == 1 && prepinac7Val == 0 && prepinacManualzavreno == false) {
    prepinacManualOtevreno = false;
    prepinacManualzavreno = true;
    prepinacAuto = false;
    digitalWrite(outLed4_provoz, LOW);
    digitalWrite(outLed5_otevrenMan, LOW);
    digitalWrite(outLed3_zavrenMan, HIGH);
    digitalWrite(outVentil8, LOW);
    digitalWrite(outLed12_otevrenAut, HIGH);
    digitalWrite(outLed10_zavrenAut, LOW);
    digitalWrite(outLed11_ventilVyp, LOW);
  }

  // automat D6=0 D7=0
  if (prepinac6Val == 0 && prepinac7Val == 0 && prepinacAuto == false) {
    prepinacManualOtevreno = false;
    prepinacManualzavreno = false;
    prepinacAuto = true;
    ventilOtevren = false;
    digitalWrite(outLed4_provoz, HIGH);
    digitalWrite(outLed5_otevrenMan, LOW);
    digitalWrite(outLed3_zavrenMan, LOW);
    digitalWrite(outVentil8, LOW);
    digitalWrite(outLed12_otevrenAut, HIGH);
    digitalWrite(outLed10_zavrenAut, LOW);
    digitalWrite(outLed11_ventilVyp, LOW);

  }

   // automatika
  if (prepinacAuto == true) {
    if (chladicTepDalas >= tepChladicTep && ventilOtevren == false) {
      ventilOtevren = true;
      digitalWrite(outVentil8, HIGH);
      digitalWrite(outLed12_otevrenAut, LOW);
      digitalWrite(outLed10_zavrenAut, HIGH);
      digitalWrite(outLed11_ventilVyp, LOW);
      Serial.println("Auto - zapni");
    }

    // vypni, kdyz je teplota Chladice mensi nez nastavena minus hystereze
    if (ventilOtevren == true && chladicTepDalas <= (tepChladicTep-tepHystereze)) {
      Serial.println("Auto - VYPNI");
      ventilOtevren = false;
      digitalWrite(outVentil8, LOW);
      digitalWrite(outLed12_otevrenAut, HIGH);
      digitalWrite(outLed10_zavrenAut, LOW);
      digitalWrite(outLed11_ventilVyp, LOW);
    }

    if (ventilOtevren == true && 
         (chladicTepDalas >= (tepChladicTep-tepHystereze) && chladicTepDalas < tepChladicTep)  ) {
      Serial.println("Auto - muzes vypnout");
      if (odpadTepDalas > tepOdpadTep && ventilOtevren == true) {
        ventilOtevren = false;
        digitalWrite(outVentil8, LOW);
        digitalWrite(outLed12_otevrenAut, HIGH);
        digitalWrite(outLed10_zavrenAut, LOW);
        digitalWrite(outLed11_ventilVyp, HIGH);
        Serial.println("Auto - vypni");
      }
      
    }
  }

  
}

float mapFloat(float value, float fromLow, float fromHigh, float toLow, float toHigh) {
  return (value - fromLow) * (toHigh - toLow) / (fromHigh - fromLow) + toLow;
}

void zobrazHodnoty() {
  delay(500);
  //lcd.clear();
  //lcd.autoscroll();
  lcd.setCursor(0, 0);
  lcd.print("TC:");
  lcd.setCursor(3, 0);
  lcd.print("     ");
  lcd.setCursor(3, 0);
  lcd.print(chladicTepDalas);
  
  lcd.setCursor(9, 0);
  lcd.print("N:");
  lcd.setCursor(11, 0);
  lcd.print("     ");
  lcd.setCursor(11, 0);
  lcd.print(tepChladicTep);
  ////
  lcd.setCursor(0, 1);
  lcd.print("TO:");
  lcd.setCursor(3, 1);
  lcd.print("     ");
  lcd.setCursor(3, 1);
  lcd.print(odpadTepDalas);

  lcd.setCursor(9, 1);
  lcd.print("N:");
  lcd.setCursor(11, 1);
  lcd.print("     ");
  lcd.setCursor(11, 1);
  lcd.print(tepOdpadTep);
  ////
  
}