#include "DHTesp.h"
#include <WiFi.h>
#include <ThingSpeak.h>
DHTesp dhtSensor;
TempAndHumidity data;
const int DHT_PIN = 15;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";
WiFiClient client;
unsigned long myChannelINumer = 2446237;
const char * myWriteAPIkey = "DYTK1XIML154PRZN";

const int trig = 4;
const int echo = 2;

long duration;

long distance;
int statusCode;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  dhtSensor.setup(DHT_PIN,DHTesp::DHT22);
  pinMode(trig, OUTPUT);
  pinMode(echo, INPUT);
  WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);
}

void loop() {
  data = dhtSensor.getTempAndHumidity();
  Serial.println("Temperature: " + String(data.temperature, 2) + "°C");
  Serial.println("Humidity:" + String(data.humidity, 1) + "%");
  Serial.println("---");
  digitalWrite(trig, LOW);
  delayMicroseconds(2);
  digitalWrite(trig, HIGH);
  delayMicroseconds(10);
  digitalWrite(trig, LOW);

  duration = pulseIn(echo, HIGH);
  distance = (duration * 0.034/2) + 1;
  Serial.println("Distance " + String(distance));
  if(WiFi.status() != WL_CONNECTED)
  {
    Serial.print("attempting to connect");
    while(WiFi.status() != WL_CONNECTED)
    {
      WiFi.begin((ssid, pass));
      Serial.print(".");
      delay(1000);
    }
    Serial.print("\connected.");
  }
  ThingSpeak.setField(1 ,data.temperature);
  ThingSpeak.setField(2 ,data.humidity);
  ThingSpeak.setField(3 ,distance);
  statusCode = ThingSpeak.writeFields(myChannelINumer ,myWriteAPIkey);

if(statusCode == 200){
  Serial.println("Channel update successful.");
  }
else{
  Serial.println("Problem Writing data. HTTP error code:" + String(statusCode));
}
delay(1500);

}