#include <SPI.h>
#include <SD.h>

File root;
#include <Keypad.h>


const uint8_t ROWS = 4;
const uint8_t COLS = 4;

char keys[ROWS][COLS] = {
  { '1', '2', '3', 'A' },
  { '4', '5', '6', 'B' },
  { '7', '8', '9', 'C' },
  { '*', '0', '#', 'D' }
};

// Pins connected to LED1, LED2, LED3, ...LED12
uint8_t rowPins[ROWS] = { 26, 22, 21, 20 }; // Pins connected to R1, R2, R3, R4
uint8_t colPins[COLS] = { 9, 8, 7, 6 }; // Pins connected to C1, C2, C3, C4

Keypad keypad = Keypad(makeKeymap(keys), rowPins, colPins, ROWS, COLS);
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);
#include <AccelStepper.h>

// Pin de commande du moteur pas à pas (broche STEP)
const int stepPin =2; // Connecté à la broche STEP du moteur
const int dirPin = 3; // Connecté à la broche STEP du moteur
// Pin du capteur d'eau connecté au Raspberry Pi Pico


// Crée une instance de la classe AccelStepper
AccelStepper stepper(AccelStepper::DRIVER, stepPin,dirPin); // type de pilote = 1 (driver A4988, DRV8825, etc.)
bool hesapmakinasidurum=true;
String input = "";
float result = 0;
bool calculated = false;
float operandsStack[50];
char operatorsStack[50];
int operandIndex = 0;
int operatorIndex = 0;
bool clearScreen = true;
char key = ' ';  // Tuş okuma için geçici değişken
long initial_homing = -1;
// Variables to hold values
float DEGER_ORANTI = 20.00;
int homingPosizyon = 10;
float maxSpeed = 1000.0;
float acceleration = 600.0;
int siperBaslangic = 1;
int siperBitis = 1200;
int hafizaButton1 = 340;
int hafizaButton2 = 40;
int hafizaButton3 = 500;
//int hafizaButton4 = 120;
// EEPROM addresses
const int addrMaxSpeed = 0;
const int addrAcceleration = 4;
const int addrDEGER_ORANTI = 8;
const int addrHomingPosizyon = 12;
const int addrsiperBaslangic = 16;
const int addrsiperBitis = 20;
const int addrhafizaButton0 = 24;
const int addrhafizaButton1 = 28;
const int addrhafizaButton2 = 32;
const int addrhafizaButton3 = 36;
unsigned long lastKeyPressTime = 0;
int currentPos;
int menuIndex = -1; // Variable to keep track of the menu state
int stepPosition = 0;  // Target position for the stepper motor
String inputString = "";  // String to hold the input from the keypad
unsigned long previousMillis = 0;  // Zamanı takip etmek için değişken
const long interval = 900000;  // 30 dakika (milisaniye cinsinden)
void setup() {
  Acilis(); // varsayılan kurulum fonksiyonu
  
 

  stepper.setMaxSpeed(2500);        // Maksimum hız
  stepper.setAcceleration(2000);     // Hızlanma değeri
}

void loop() {
  // Add keypad reading
  char key = keypad.getKey();
  
  if (key) {
   // lastKeyPressTime = millis(); // Update last interaction time
    
    // Handle key press
    if (isdigit(key) || key == '.') {  // Added decimal point support
      // Handle numeric input
      inputString += key;
      lcd.print(key);
    }
    else {
      // Handle special keys (A-D, *, #)
      switch(key) {
        case 'A': 
          // Convert string to position and move stepper
          if (inputString.length() > 0) {
            long targetPosition = inputString.toInt();  // or toFloat() if needed
            stepper.moveTo(targetPosition);
            lcd.clear();
            lcd.print("Moving to:");
            lcd.setCursor(0, 1);
            lcd.print(targetPosition);
            inputString = "";  // Clear input after use
          }
          break;
          
        case 'B':
          // Stop motor immediately
          stepper.stop();
          stepper.setCurrentPosition(0);  // Optional: reset position
          lcd.clear();
          lcd.print("Stopped");
          inputString = "";
          break;
          
        case 'C':
          // Example: Move to home position
         inputString="";
          lcd.clear();
          lcd.print("Going home");
          break;
          
        case 'D':
          // Example: Clear input
          inputString = "";
          lcd.clear();
          break;
          
        // ... other cases for *,#, etc.
      }
    }
  }
 stepper.run();
  // Stepper control - move only if needed
 // if (stepper.distanceToGo() != 0) {
 //   stepper.run();
 // }
/*
  // Add timeout functionality (return to home after inactivity)
  if (millis() - lastKeyPressTime > interval) {
    // Return to home position or safe state
    stepper.moveTo(homingPosizyon);
    lastKeyPressTime = millis(); // Reset timer
    lcd.clear();
    lcd.print("Timeout: Going home");
  }
  */
}