#include <Adafruit_NeoPixel.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>  // Include the LCD library

// set the LCD number of columns and rows
int lcdColumns = 16;
int lcdRows = 2;
// set LCD address, number of columns and rows
LiquidCrystal_I2C lcd(0x27, lcdColumns, lcdRows);
// === Moisture Sensor ===
#define MOISTURE_PIN A0  // Analog pin for soil moisture sensor

// === NeoPixel Setup ===
#define LED_PIN     12
#define POWER_PIN   11
#define NUMPIXELS   1
Adafruit_NeoPixel pixels(NUMPIXELS, LED_PIN, NEO_GRB + NEO_KHZ800);

// === Serial Communication ===
int id = 2; // Receiver ID
String message = "";

void setup() {
  // Serial Setup
  Serial.begin(9600);
  Serial1.begin(115200);

  // Moisture Sensor Power (optional)
  pinMode(POWER_PIN, OUTPUT);
  digitalWrite(POWER_PIN, HIGH);

  // NeoPixel Init
  pixels.begin();
  pixels.setBrightness(50);

    // initialize LCD
  lcd.init();
  // turn on LCD backlight                      
  lcd.backlight();

  // Display a welcome message
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Moisture Monitor");
  delay(1000);
}

void loop() {
  // === Moisture Sensor Reading ===
  int moistureValue = analogRead(MOISTURE_PIN);

  // === Display on Serial ===
  Serial.print("Moisture: ");
  Serial.println(moistureValue);

  

  // === Display on LCD ===
  

// set cursor to first column, first row
  lcd.setCursor(0, 0);
  // print message
  lcd.print("Moisture Value:");
  lcd.setCursor(0, 1);
  lcd.print(moistureValue);  // Display moisture value on second row
  delay(1000);
  // clears the display to print new message
  lcd.clear();
  // set cursor to first column, second row
  


  // === Forward Input from Serial to Serial1 ===
  if (Serial.available() > 0) {
    String myInput = Serial.readString();
    myInput = id + ": " + myInput;
    Serial1.println(myInput);
  }

  // === Receive and Process Message from Serial1 ===
  if (Serial1.available() > 0) {
    String networkIncoming = Serial1.readString();
    int specialCharIndex = networkIncoming.indexOf('@');

    if (specialCharIndex != -1) {
      message = networkIncoming.substring(0, specialCharIndex);
      String destination = networkIncoming.substring(specialCharIndex + 1);
      int receiver = destination.toInt();

      if (receiver == id) {
        int r, g, b;
        int firstComma = message.indexOf(',');
        int secondComma = message.indexOf(',', firstComma + 1);

        Serial.println("Message: " + message + ", Receiver: " + String(receiver));

        if (firstComma != -1 && secondComma != -1) {
          r = message.substring(0, firstComma).toInt();
          g = message.substring(firstComma + 1, secondComma).toInt();
          b = message.substring(secondComma + 1).toInt();
          setColor(r, g, b);
        }
      } else {
        Serial.println("Not my message");
      }
    }
  }

  delay(1000);  // Refresh every 1 second
}

// === Set NeoPixel Color ===
void setColor(int r, int g, int b) {
  pixels.setPixelColor(0, pixels.Color(r, g, b));
  pixels.show();
}