#include <WiFi.h>
#include <HTTPClient.h>
#include <LiquidCrystal_I2C.h>
#include<ArduinoJson.h>
HTTPClient http;

LiquidCrystal_I2C lcd = LiquidCrystal_I2C(0x27,16,2);
void setup() {
  Serial.begin(9600);
  Serial.print("Connecting to WiFi");
  WiFi.begin("Wokwi-GUEST", "", 6);
  while (WiFi.status() != WL_CONNECTED) {
    delay(100);
    Serial.print(".");
  }
  Serial.println(" Connected!");
  lcd.init();
  lcd.backlight();
}

void loop() {
  if ((WiFi.status() == WL_CONNECTED)) {
    HTTPClient http;
    http.begin("https://api.openweathermap.org/data/2.5/weather?id=1562693&appid=dd6d81707a23916e8b80e738532f655e");
    int httpCode = http.GET();

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

      StaticJsonDocument<1024> doc;  // Kích thước bộ nhớ cho JSON
      DeserializationError error = deserializeJson(doc, payload);

      if (error) {
        Serial.print("JSON deserialization failed: ");
        Serial.println(error.f_str());
        return;
      }

      // Trích xuất thông tin thời tiết
      float temperatureKelvin = doc["main"]["temp"];  // Nhiệt độ
      float temperatureCelsius = temperatureKelvin - 273.15;
      const char* weather = doc["weather"][0]["description"];  // Mô tả thời tiết

      // Hiển thị thông tin lên LCD
      lcd.clear();
      lcd.setCursor(0, 0);
      lcd.print("Temp: ");
      lcd.print(temperatureCelsius);
      lcd.print(" C");

      lcd.setCursor(0, 1);
      lcd.print(weather);

      Serial.print("Temperature: ");
      Serial.println(temperatureCelsius);
      Serial.print("Weather: ");
      Serial.println(weather);

    }
    else {
      Serial.println("Error on HTTP request");
    }
    http.end();
  }
 

  
  delay(10000);
}