#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <Servo.h>

LiquidCrystal_I2C lcd(0x27, 16, 2); // Adjust the I2C address if needed
Servo servos[4];
const int servoPins[4] = {3, 5, 6, 9}; // Updated pins for servos

int moistureLevels[4];
int baseTime = 6000;  // Base time for each servo in milliseconds

void setup() {
  Serial.begin(9600);
  lcd.begin(16, 2);
  lcd.backlight();

  // Attach servos to pins
  for (int i = 0; i < 4; i++) {
    servos[i].attach(servoPins[i]);
  }
}

void loop() {
  // Receive moisture levels from each C Arduino
  for (int i = 0; i < 4; i++) {
    if (Serial.available() > 0) {
      moistureLevels[i] = Serial.read();
    }
  }

  // Find min and max moisture levels
  int minMoisture = moistureLevels[0];
  int maxMoisture = moistureLevels[0];
  
  for (int i = 1; i < 4; i++) {
    if (moistureLevels[i] < minMoisture) minMoisture = moistureLevels[i];
    if (moistureLevels[i] > maxMoisture) maxMoisture = moistureLevels[i];
  }

  // Calculate watering time and move each servo
  int totalLoopTime = 0;
  
  for (int i = 0; i < 4; i++) {
    int moistureLevel = moistureLevels[i];
    int additionalTime = map(moistureLevel, minMoisture, maxMoisture, 3000, 0); // Calculate based on dryness
    int servoTime = baseTime + additionalTime;

    // Move servo and display individual servo time on LCD
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Servo ");
    lcd.print(i + 1);
    lcd.print(" Time:");
    lcd.setCursor(0, 1);
    lcd.print(servoTime / 1000); // Display in seconds
    lcd.print("s");

    // Move servo to 90 degrees, wait, and return to 0
    servos[i].write(90);
    delay(servoTime);
    servos[i].write(0);

    // Add to total loop time
    totalLoopTime += servoTime;
  }

  // Display total loop time on LCD
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Loop Time:");
  lcd.setCursor(0, 1);
  lcd.print(totalLoopTime / 1000); // Display total time in seconds

  delay(2000);  // Delay before the next loop
}