#include <WiFi.h>
#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;

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() {
float t = dht.readTemperature();
float h = dht.readHumidity();

if (isnan(h) || isnan(t))
 {
     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) +"C");
    lcd.setCursor(0, 1);
    lcd.print("H:" + String(h) +"%");
    Serial.println("Température: ");
    Serial.print(t);
    Serial.print(" °C");
    Serial.println("");
    Serial.print("Humidity: ");
    Serial.print(h);
    Serial.println(" %");
}
}

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"];
        float temperature = main["temp"];
        float humidity = main["humidity"];

        Serial.print("Temperature de weather : ");
        Serial.print(temperature);
        Serial.print("°C");
        Serial.print("Humidity de weather :");
       
        Serial.print(humidity);
        Serial.println("");
        lcd.setCursor(9, 0);
        lcd.print("T_r:"+ String(temperature) +"C");
        lcd.setCursor(9, 1);
        lcd.print(" H_r:" + String(humidity) + "%");
    }
  }
   else {
    Serial.print("HTTP request failed with error code: ");
    Serial.println(httpCode);
  }

  http.end();
  }
}