#include <DHTesp.h>
#include <WiFi.h>
#include <ThingSpeak.h>
long myChannelNumber =  2642017; //channel ID
const char * myWriteAPIKey = "Y4DI72WMAOEMQ2ZN"; //API Key
int statusCode;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";
int red = 21;
int green = 16;
int yellow = 19;
DHTesp dhtsen;
TempAndHumidity data;
WiFiClient client;
void setup()
{
  ThingSpeak.begin(client);
  Serial.begin(115200);
  dhtsen.setup(18, DHTesp::DHT22);
  pinMode(red, OUTPUT);
  pinMode(yellow, OUTPUT);
  pinMode(green, OUTPUT);
  WiFi.mode(WIFI_STA);
}

void loop()
{
  if (WiFi.status() != WL_CONNECTED)
  {
    Serial.print("Attempting to connect");
    while (WiFi.status() != WL_CONNECTED)
    {
      WiFi.begin(ssid, pass);
      Serial.print(".");
      delay(5000);
    }
    Serial.println("\nConnected.");
  }
  if (WiFi.status() == WL_CONNECTED)
  {
    data = dhtsen.getTempAndHumidity();
    Serial.println("Humi : " + String(data.humidity));
    Serial.println("Temp : " + String(data.temperature));
    Serial.println("-----------------");
    if (data.temperature >= 50 && data.humidity <= 20)
      {
        digitalWrite(red, HIGH);
        digitalWrite(yellow, LOW);
        digitalWrite(green, LOW);
        tone(13,1000);
        Serial.println("your skin is dehydrated and irritated!");
      }
      else if (data.temperature >= 20 && data.temperature <= 50 && data.humidity >= 30 && data.humidity <= 50)
      {
        digitalWrite(yellow, HIGH);
        digitalWrite(green, LOW);
        digitalWrite(red, LOW);
        noTone(13);
        Serial.println("more attention to skin care and hydration!");
      }
      else if (data.temperature <= 20 && data.humidity > 50)
      {
        digitalWrite(green, HIGH);
        digitalWrite(red , LOW);
        digitalWrite(yellow, LOW);
        noTone(13);
        Serial.println("your skin hydrated and comfortable!");
      }
      else {
        digitalWrite(green, LOW);
        digitalWrite(red, LOW);
        digitalWrite(yellow, LOW);
      }
    ThingSpeak.setField(1, data.temperature);
    ThingSpeak.setField(2, data.humidity);

    statusCode = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);

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