#include <BH1750.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>


#define ONE_WIRE_BUS_1 2
#define ONE_WIRE_BUS_2 4

LiquidCrystal_I2C lcd(0x27, 20, 4);
OneWire oneWire_out(ONE_WIRE_BUS_2);
DallasTemperature sensors( & oneWire_out);
BH1750 lightMeter(0x23);

int targetToOpen = 1000;
int targetToClose = 10;
bool nightPassed = true;
bool dayPassed = true;
bool switchedUP = false;
bool switchedDOWN = false;
bool button1 = HIGH;
bool button2 = HIGH;
bool up = false;
bool down= false;
bool isDown = false;
bool isUp = false;

void setup(void) {
    pinMode(11, INPUT_PULLUP); //Przycisk jako wejście
    pinMode(12, INPUT_PULLUP); //Przycisk jako wejście
    pinMode(2, OUTPUT); //Przekaznik jako wyjscie -> gora
    digitalWrite(2, HIGH); //Ustawienie stanu niskiego na procie 8
    pinMode(3, OUTPUT); //Przekaznik jako wyjscie -> dol
    digitalWrite(3, HIGH); //Ustawienie stanu niskiego na procie 8
    Serial.begin(9600);  // po co?
    sensors.setResolution(9);
    sensors.begin();
    sensors.requestTemperatures();
    lightMeter.begin(BH1750_CONTINUOUS_HIGH_RES_MODE);
    lcd.init();
    lcd.backlight();
    lcd.begin(16, 2);
    lcd.clear();
}

void loop(void) {
    sensors.requestTemperatures(); //Pobranie temperatury czujnika
    double temperature = ((double) sensors.getTempCByIndex(0));
    uint16_t lux = lightMeter.readLightLevel();
    lcd.setCursor(0, 0);
    lcd.print("Temp :  ");
    lcd.print(temperature);
    lcd.print(" ");
    lcd.print((char) 223);
    lcd.print("C");
    lcd.setCursor(0, 1);
    lcd.print("Light:  ");
    lcd.print(lux);
    lcd.print("    lx");


    if (targetToOpen < lux) { //dzien
        up = true; //jasno
    }
    if (targetToClose > lux) { // noc
       down = true; //ciemno
    }
    if (debounceButton(button1, 11) == HIGH && button1 == LOW) { //Jeśli przycisk wciśnięty, podnies rolete
        button1 = HIGH;
        if(!isUp){
            digitalWrite(2, LOW);
            delay(5000);
            Serial.print("Przycisk w gore\n");
            digitalWrite(2, HIGH);
            isUp=true;
            isDown=false;
          }

    } else if (debounceButton(button1, 11) == LOW && button1 == HIGH) {
        button1 = LOW;
    }
    if (debounceButton(button2, 12) == HIGH && button2 == LOW) { //Jeśli przycisk wciśnięty, opusc rolete
        button2 = HIGH;
         if(!isDown){
            digitalWrite(3, LOW);
            delay(5000);
            Serial.print("Przycisk w dół\n");
            digitalWrite(3, HIGH);
            isUp=false;
            isDown=true;
          }
    } else if (debounceButton(button2, 12) == LOW && button2 == HIGH) {
        button2 = LOW;
    }

   //przelaczanie
    if(switchedDOWN){ //przycisk wciśnięty w dół
        if(down == true){
            nightPassed == true; //jeśli jest jest ciemno, oznacza to, że trwa noc
        }
        if (nightPassed){
            switchedDOWN = false;
            nightPassed = false;
        }
    }else if(switchedUP){
        if(up == true){
            dayPassed == true;
        }
        if (dayPassed){
            switchedUP = false;
            dayPassed= false;
        }
    }
    else{
        if(up){ //up=day
          if(isUp){ //isUp = wciągnięta roleta do góry
            up=false;
          }else{
            digitalWrite(2, LOW);
            delay(5000);
            Serial.print("Czujnik w gore\n");
            digitalWrite(2, HIGH);
            up = false;
            isUp=true;
            isDown=false;
          }

        }else if(down){
          if(isDown){
            down=false;
          }else{
            digitalWrite(3, LOW);
            delay(5000);
            Serial.print("Czujnik w dol\n");
            digitalWrite(3, HIGH);
            down = false;
            isUp=false;
            isDown=true;
          }
        }
    }
}

bool debounceButton(bool state, int pin) {
    bool now = digitalRead(pin);
    if (state != now) {
        delay(10);
        now = digitalRead(pin);
    }
    return now;
}