#include <DHTesp.h>
#include <WiFi.h>
#include <ThingSpeak.h>



WiFiClient client;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";
long myChannelNumber=2733572;
const char * myWriteAPIKey="ZBBQVSGAR44UTDRI";
int statusCode;

int thread = -1;
int yieldprod = 0;

const int tempPin = 15;
const int ldrPin = 34;
const int vgled = 26; 
const int gled = 25;  
const int aled = 27;   
const int bled = 12;   
const int vbled = 13;  

DHTesp dht;

void setup() {
  Serial.begin(115200);
  dht.setup(tempPin, DHTesp::DHT22);
  ThingSpeak.begin(client);

  pinMode(vgled, OUTPUT);
  pinMode(gled, OUTPUT);
  pinMode(aled, OUTPUT);
  pinMode(bled, OUTPUT);
  pinMode(vbled, OUTPUT);
  WiFi.begin(ssid,pass);
  Serial.println("Connecting to WiFi");
  while (WiFi.status() != WL_CONNECTED) {
    delay(100);
    Serial.print(".");
  }
  Serial.println(" Connected!");
}

void loop() {
  float temp = dht.getTemperature();
  float humi = dht.getHumidity();
  int moist = analogRead(ldrPin);

  if (isnan(temp) || isnan(humi)) return;

  digitalWrite(vgled, LOW);
  digitalWrite(gled, LOW);
  digitalWrite(aled, LOW);
  digitalWrite(bled, LOW);
  digitalWrite(vbled, LOW);

Serial.println("Temperature: " + String(temp));
Serial.println("Humidity: " + String(humi));
Serial.println("Moisture: " + String(moist));



  if (temp > 20 && temp < 30 && humi > 60 && humi < 80 && moist > 800) {
    digitalWrite(vgled, HIGH);  
    thread = 0;
    yieldprod = 90;
  } 
  else if (temp > 18 && temp < 32 && humi > 55 && humi < 75 && moist > 700) {
    digitalWrite(gled, HIGH);  
    thread = 1;
    yieldprod = 70;
  } 
  else if (temp > 15 && temp < 35 && humi > 50 && humi < 70 && moist > 600) {
    digitalWrite(aled, HIGH);   
    thread = 2;
    yieldprod = 50;
  } 
  else if (temp > 10 && temp < 40 && humi > 45 && humi < 65 && moist > 400) {
    digitalWrite(bled, HIGH);   
    thread = 3;
    yieldprod = 30;
  } 
  else {
    digitalWrite(vbled, HIGH);  
    thread = 4;
    yieldprod = 10;
  }

  // Update ThingSpeak fields
  ThingSpeak.setField(1, humi);
  ThingSpeak.setField(2, temp);
  ThingSpeak.setField(3, moist);
  ThingSpeak.setField(4, yieldprod);
  ThingSpeak.setField(5, thread);

  statusCode = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);
  if (statusCode == 200) {
    Serial.println("Data sent to ThingSpeak successfully");
  } else {
    Serial.println("Failed to send data to ThingSpeak");
  }

  delay(15000);
}