#include <WiFi.h>               // Include the WiFi library
#include "DHTesp.h"             // Include the DHT sensor library
#include "ThingSpeak.h"         // Include the ThingSpeak library

const int DHT_PIN = 15;         // Define the pin connected to the DHT sensor
const int LED_PIN = 13;         // Define the pin connected to the LED
const char* WIFI_NAME = "Wokwi-GUEST";   // Define your WiFi SSID
const char* WIFI_PASSWORD = "";           // Define your WiFi password
const int myChannelNumber = 2546305;      // Define your ThingSpeak channel number
const char* myApiKey = "K8EZ827FJT1VE31L"; // Define your ThingSpeak API key
const char* server = "api.thingspeak.com"; // Define the ThingSpeak server

DHTesp dhtSensor;               // Initialize a DHT object
WiFiClient client;              // Initialize a WiFi client

void setup() {
  Serial.begin(115200);         // Initialize serial communication
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22); // Setup DHT sensor
  pinMode(LED_PIN, OUTPUT);     // Set LED pin as output
  WiFi.begin(WIFI_NAME, WIFI_PASSWORD);    // Connect to WiFi
  while (WiFi.status() != WL_CONNECTED){   // Wait until connected
    delay(1000);
    Serial.println("Wifi not connected");
  }
  Serial.println("Wifi connected !");       // Indicate WiFi connection
  Serial.println("Local IP: " + String(WiFi.localIP())); // Print local IP
  WiFi.mode(WIFI_STA);          // Set WiFi mode to station
  ThingSpeak.begin(client);     // Begin ThingSpeak client
}

void loop() {
  TempAndHumidity  data = dhtSensor.getTempAndHumidity(); // Read temperature and humidity
  ThingSpeak.setField(1,data.temperature); // Set field 1 with temperature
  ThingSpeak.setField(2,data.humidity);    // Set field 2 with humidity
  if (data.temperature > 35 || data.temperature < 12 || data.humidity > 70 || data.humidity < 40) {
    digitalWrite(LED_PIN, HIGH);   // Turn on LED if conditions met
  }else{
    digitalWrite(LED_PIN, LOW);    // Turn off LED if conditions not met
  }
  
  int x = ThingSpeak.writeFields(myChannelNumber,myApiKey); // Write data to ThingSpeak
  
  Serial.println("Temp: " + String(data.temperature, 2) + "°C"); // Print temperature
  Serial.println("Humidity: " + String(data.humidity, 1) + "%"); // Print humidity
  
  if(x == 200){
    Serial.println("Data pushed successfully"); // Print success message if data pushed successfully
  }else{
    Serial.println("Push error" + String(x));   // Print error message if data push failed
  }
  Serial.println("---"); // Print separator
  
  delay(10000);  // Delay for 10 seconds before next iteration
}