#include <WiFi.h>
#include <PubSubClient.h>
#include <TinyGPS++.h>

const char* ssid = "HAC-kathon";
const char* password = "H@C2k25.";  
const char* mqtt_server = "mqtt.eclipseprojects.io";  
const char* thingsboard_server = "mqtt.thingsboard.cloud";  
const char* tb_token = "n3v7mblr71fhds8763l1";  

WiFiClient espClient;
PubSubClient mqttClient(espClient);
PubSubClient tbClient(espClient);
TinyGPSPlus gps;

#define SOUND_SENSOR_PIN 34  
#define MQTT_TOPIC "wokwi/infrasound"

void callback(char* topic, byte* payload, unsigned int length) {
    char msg[20];
    strncpy(msg, (char*)payload, length);
    msg[length] = '\0';
    float soundFrequency = atof(msg);

    // Simulated GPS data (Replace with actual GPS readings)
    float latitude = 10.765 + random(0, 10) / 1000.0;
    float longitude = 76.985 + random(0, 10) / 1000.0;

    // Publish the detected infrasound to ThingsBoard
char tb_payload[200];
sprintf(tb_payload, "{\"sound_frequency\": %.2f, \"latitude\": %.6f, \"longitude\": %.6f}", 
    soundFrequency, latitude, longitude);
tbClient.publish("v1/devices/me/telemetry", tb_payload);

}

void setup() {
    Serial.begin(115200);
    WiFi.begin(ssid, password);
    while (WiFi.status() != WL_CONNECTED) {
        delay(500);
        Serial.print(".");
    }
    Serial.println("Connected to WiFi");

    mqttClient.setServer(mqtt_server, 1883);
    mqttClient.setCallback(callback);
    mqttClient.subscribe(MQTT_TOPIC);

    tbClient.setServer(thingsboard_server, 1883);
    while (!tbClient.connected()) {
        tbClient.connect("ESP32", tb_token, NULL);
    }
}

void loop() {
    mqttClient.loop();  
    tbClient.loop();  
    delay(1000);
}