#include <WiFi.h>
#include "DHTesp.h"       
#include "ThingSpeak.h"   
const int BUTTON_PIN = 4;
const int DHT_PIN = 25;           
const int LED1_PIN = 13;
const int LED2_PIN = 5;           
const char* WIFI_NAME = "Wokwi-GUEST"; 
const char* WIFI_PASS = "";         
const int CHANNEL_NUM = 2337363;    
const char* API_KEY = "2A87KGC0ZNX6IJ7F";
int buttonState = 0;
DHTesp dht;
WiFiClient client;                  

void setup() {
  Serial.begin(115200);
  dht.setup(DHT_PIN, DHTesp::DHT22);
  pinMode(BUTTON_PIN, INPUT);
  pinMode(LED1_PIN, OUTPUT);
  pinMode(LED2_PIN, OUTPUT);           
  WiFi.begin(WIFI_NAME, WIFI_PASS);  
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("WiFi not connected");
  }
  Serial.println("WiFi connected!");   
  Serial.println("Local IP: " + String(WiFi.localIP()));
  WiFi.mode(WIFI_STA);                 
  ThingSpeak.begin(client);             
}

void loop() {
  buttonState = digitalRead(BUTTON_PIN);
  Serial.println(buttonState);
  TempAndHumidity data = dht.getTempAndHumidity();
  ThingSpeak.setField(1, data.temperature);     
  ThingSpeak.setField(2, data.humidity); 
  

  digitalWrite(LED1_PIN, (data.temperature > 35 || data.temperature < 12 || data.humidity > 70 || data.humidity < 40) ? HIGH : LOW);
  
  int response = ThingSpeak.writeFields(CHANNEL_NUM, API_KEY); 
  
  Serial.println("Temp: " + String(data.temperature, 2) + "°C");
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");
  
  Serial.println(response == 200 ? "Data pushed successfully" : "Push error " + String(response));
  Serial.println("---");
  if (buttonState == HIGH) {
    digitalWrite(LED2_PIN, HIGH);
  } else {
    digitalWrite(LED2_PIN, LOW);
  }
  delay(10000);
}