#include <WiFi.h>
#include <HTTPClient.h>

#define WIFI_AP "Wokwi-GUEST"
#define WIFI_PASS ""

const char* server = "83.166.237.170";
const int port = 9090;
const char* token = "9TIJVP7fEaAnUnw4vitv";

#define RXp2 16
#define TXp2 17

void setup() {
  Serial.begin(115200);
  Serial2.begin(115200, SERIAL_8N1, RXp2, TXp2);
  connectToWiFi();
}

void connectToWiFi() {
  Serial.println("Connecting to Wi-Fi...");
  WiFi.begin(WIFI_AP, WIFI_PASS);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("\nConnected to Wi-Fi");
}

void sendDataToThingsBoard(float temperature, float pressure) {
  HTTPClient http;
  
  // Form the URL for sending data
  String url = "http://" + String(server) + ":" + port + "/api/v1/" + String(token) + "/telemetry";
  
  // Form JSON payload with random temperature and pressure values
  String payload = "{\"temperature\":" + String(temperature) +
                    ",\"pressure\":" + String(pressure) + "}";
  
  http.begin(url);
  http.addHeader("Content-Type", "application/json");

  int httpResponseCode = http.POST(payload);
  
  if(httpResponseCode > 0) {
    String response = http.getString();
    Serial.println("HTTP Response code: " + String(httpResponseCode));
    Serial.println(response);
  } else {
    Serial.print("Error sending HTTP request: ");
    Serial.println(httpResponseCode);
  }
  
  http.end();
}

void loop() {
  // Generate random temperature and pressure values
  float temperature = random(10, 30); // Random temperature between 10°C and 30°C
  float pressure = random(900, 1100); // Random pressure between 900 hPa and 1100 hPa
  
  // Print generated values for verification
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.print("°C, Pressure: ");
  Serial.print(pressure);
  Serial.println(" hPa");

  // Send data to ThingsBoard
  sendDataToThingsBoard(temperature, pressure);
  
  delay(5000); // Send data every 5 seconds
}