#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <RotaryEncoder.h>
#include <Servo.h>
#include "HX711.h"

LiquidCrystal_I2C lcd(0x27, 20, 4); // Adresa LCD displeje a jeho rozlišení
RotaryEncoder encoder(8, 9); // Pin pro DT na 8, pin pro CLK na 9
Servo servoMotor;

int encoderButtonPin = 5; // Pin pro tlačítko enkodéru
int servoPin = 10; // Pin pro servomotor
int hx711_dt_pin = 6; // Pin DT pro váhu HX711
int hx711_sck_pin = 7; // Pin SCK pro váhu HX711
int targetWeight = 0; // Deklarácia premennej targetWeight

void setup() {
  lcd.begin(20, 4); // Oprava: Pridané parametre pre počet stĺpcov a riadkov
  lcd.backlight();
  servoMotor.attach(servoPin);
  pinMode(encoderButtonPin, INPUT_PULLUP); // Tlačidlo enkodéru s pull-up rezistorom
  // Oprava: Odstránenie volania encoder.setup(), nie je potrebné pre RotaryEncoder knižnicu
  pinMode(hx711_dt_pin, OUTPUT);
  pinMode(hx711_sck_pin, OUTPUT);
}

void loop() {
  int encoderValue = encoder.read(); // Oprava: Použitie read() namiesto readEncoder()
  float currentWeight = measureWeight();
  
  lcd.setCursor(0, 0);
  lcd.print("Weight: ");
  lcd.print(currentWeight);
  lcd.print(" g ");

  lcd.setCursor(0, 1);
  lcd.print("Target: ");
  lcd.print(targetWeight);
  lcd.print(" g ");

  if (digitalRead(encoderButtonPin) == HIGH) {
    targetWeight = encoderValue;
    delay(500);
  }

  if (currentWeight >= targetWeight) {
    servoMotor.write(90);
  } else {
    servoMotor.write(0);
  }
}

float measureWeight() {
  // Tu pridaj kód na meranie váhy pomocou HX711
  return 0.0; // Dummy return, nahraďte vlastným kódom pre meranie váhy
}