#include <Arduino.h>
//#include <WiFi.h>
//#include <SPIFFS.h>
//#include <ESP32_MP3_Decoder.h>
//#include <SD.h>
//#include <HC_SR04.h>
#include <HardwareSerial.h>
//#include "DFRobotDFPlayerMini.h"
//#include <DFRobotDFPlayerMini.h>
//DFRobotDFPlayerMini playerMP3;
//HardwareSerial playerMP3Serial(2); // for UART1, leaves standard UART0 alone for debug output via USB/serial bridge

#define ECHO_PIN 22 
#define TRIG_PIN 21

// WIFI
//const char* ssid = "ssid";
//const char* password = "password";

// Variable for HC-SR04
HC_SR04 hcsr04;

// Variable for storing the current distance
float distance;

// Variable for storing the current song
String currentSong;

// Array for storing the list of songs
String songList[] = {"song1.mp3", "song2.mp3", "song3.mp3"};

// Variable for song index
int songIndex = 0;

// Variable for storing the total number of songs
int numSongs = sizeof(songList) / sizeof(songList[0]);

// Variable for the MP3 decoder
ESP32_MP3_Decoder decoder;

// Setup function
void setup() {
  Serial.begin(9600);
  
  // Connect to WIFI
  //Serial.println("Connecting to WIFI...");
  //WiFi.begin(ssid, password);

  //while (WiFi.status() != WL_CONNECTED) {
   // delay(500);
   // Serial.print(".");
  }
 // Serial.println();
  //Serial.println("WiFi connected");
  //Serial.println("IP address: ");
  //Serial.println(WiFi.localIP());

  // Initialize HC-SR04
  hcsr04.init(ECHO_PIN, TRIG_PIN);

  // Initialize SD card
  if (!SD.begin()) {
    Serial.println("Card Mount Failed");
    return;
  }
  
  // Initialize SPIFFS
  if (!SPIFFS.begin(true)) {
    Serial.println("SPIFFS Mount Failed");
    return;
  }
  
  // Initialize decoder
  decoder.begin();
}

// Main loop
void loop() {
  // Get the current distance
  distance = hcsr04.getDistance();
  
  // If the current distance is less than 20 cm
  if (distance < 20) {
    // Choose a random song
    songIndex = random(numSongs);
    currentSong = songList[songIndex];
    
    // Play the song
    decoder.playMP3(currentSong.c_str());
  }
  
  delay(100);
}
}