/**
   ESP32 + DHT22 Example for Wokwi
   
   https://wokwi.com/arduino/projects/322410731508073042
*/
#include <WiFi.h>
#include <HTTPClient.h>
#include "DHTesp.h"

const int DHT_PIN = 15;
DHTesp dhtSensor;

const char* ssid = "Wokwi-GUEST";
const char* password = "";

void setup() {
  Serial.begin(115200);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);

  Serial.print("Connecting to WiFi");
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(100);
    Serial.print(".");
  }
  Serial.println("\nConnected to WiFi!");
}

void send_data_to_api(float celsius, float humidity, float kelvin) {
  if (WiFi.status() != WL_CONNECTED) {
    Serial.println("WiFi not connected!");
    return;
  }

  HTTPClient http;
  String url = "https://patcharaphonapi.aimaccount.com/upload";
  url += "?celsius=" + String(celsius);
  url += "&fahrenheit=" + String(humidity);
  url += "&kelvin=" + String(kelvin);
  
  //https://patcharaphonapi.aimaccount.com/upload?celsius=25.5&fahrenheit=77.9&kelvin=298.7

  http.begin(url);
  int httpCode = http.GET();
  
  if (httpCode == HTTP_CODE_OK) {
    String payload = http.getString();
    Serial.println("Server Response: " + payload);
  } else {
    Serial.println("HTTP Error: " + String(httpCode));
  }
  http.end();
}

void loop() {
  TempAndHumidity data = dhtSensor.getTempAndHumidity();
  
  // ตรวจสอบค่าที่อ่านได้
  if (isnan(data.temperature) || isnan(data.humidity)) {
    Serial.println("Failed to read from DHT sensor!");
    delay(2000);
    return;
  }

  // คำนวณหน่วยอุณหภูมิ
  float fahrenheit = (data.temperature * 9.0/5.0) + 32;
  float kelvin = data.temperature + 273.15;

  // แสดงผลบน Serial Monitor
  Serial.println("Temperature: " + String(data.temperature, 1) + "°C");
  Serial.println("Fahrenheit: " + String(fahrenheit, 1) + "°F");
  Serial.println("Kelvin: " + String(kelvin, 1) + "K");
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");
  Serial.println("----------------------------");

  // ส่งข้อมูลไปยัง API
  send_data_to_api(data.temperature, data.humidity);
  
  delay(30000); // หน่วงเวลา 30 วินาที
}