#include <DHT.h>
#include <LiquidCrystal_I2C.h>
#include <HTTPClient.h>
#include <ArduinoJson.h>
const char* url = "https://api.openweathermap.org/data/2.5/weather?q=Tozeur&appid=904f05c2f80aff859fbacf58e5c2fabc";
const char* ssid = "Wokwi-GUEST";
const char* password = "";
#define DHTPIN 13       // Broche de signal du capteur DHT
#define DHTTYPE DHT22   // Type de capteur DHT
DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(0x27, 16, 2);
WiFiClient client;
int t_dht;
int h_dht;

int temperature_api ;
int temperature_API ;
int humidity_API;


int fahrenheitToCelsius(int fahrenheit) {
    return (fahrenheit - 32) * 5/9;
}

int calculMOY(int a,int b){

  return((a+b)/2);

}

void setup() {
  Serial.begin(115200); // Démarre la communication série
  dht.begin();
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
        delay(1000);
        Serial.println("Connecting to WiFi...");
    }
  Serial.println("CONNECTED");
  lcd.init();
  lcd.backlight();
}

void loop() {
t_dht = dht.readTemperature();
h_dht = dht.readHumidity();
if (isnan(h_dht) || isnan(t_dht))
 {
     Serial.println("ERROR !!! ");
     lcd.clear();
     lcd.setCursor(0, 0);
     lcd.print("ERROR !!! ");
     delay(2000);
 } 

else 
{
getWeatherData();
lcd.setCursor(0, 0);
lcd.print("t:" + String(t_dht) + "C");
lcd.setCursor(0, 1);
lcd.print("h:" + String(h_dht) + "%");

Serial.print("Température DHT:");
Serial.print(t_dht);
Serial.println("C");  // Use println to print on a new line
Serial.print("Humidity DHT: ");
Serial.print(h_dht);
Serial.println("%");  // Use println to print on a new line

}

double Moyenne_temp=calculMOY(t_dht,temperature_API);
double Moyenne_hum=calculMOY(h_dht,humidity_API);

Serial.print("Moyenne temperature: ");
Serial.println(Moyenne_temp);

Serial.print("Moyenne humidity: ");
Serial.println(Moyenne_hum);
}




void getWeatherData(){
  HTTPClient http;
  http.begin(url);

  int httpCode = http.GET();

  if (httpCode > 0) {
    if (httpCode == HTTP_CODE_OK) {
      String payload = http.getString();
      Serial.println(payload);

      // Parse the JSON response
      DynamicJsonDocument jsonDoc(1024); // Adjust the size according to your JSON response
      DeserializationError error = deserializeJson(jsonDoc, payload);

      if (error) {
        Serial.print("JSON parsing failed: ");
        Serial.println(error.c_str());
      } 
      else {
        // Extract weather information from JSON
        JsonObject main = jsonDoc["main"];
        temperature_api = main["temp"];
        humidity_API = main["humidity"];
        temperature_API=fahrenheitToCelsius(temperature_api);
        
        Serial.print("Temperature_API: ");
        Serial.print(temperature_API);
        Serial.println("°C");
        Serial.print("Humidity_API :");
        Serial.print(humidity_API);
        Serial.println("%");  // Use println to print on a new line

        lcd.setCursor(8, 0);
        lcd.print("T:"+ String(temperature_API) +"C");
        lcd.setCursor(8, 1);
        lcd.print("H:" + String(humidity_API) + "%");
    }
  }
   else {
    Serial.print("HTTP request failed with error code: ");
    Serial.println(httpCode);
  }

  http.end();
  }
}