// sketch for Active Buzzer
#include "ThreadHandler.h"

#define SPEAKER_PIN 8

enum State {BOOT, READY, RECORDING, FINISHED_RECORDING};

bool boot = true;
int recording = 0; // 0: not started, 1: recording, 2: finished recording
int count = 0;

/**
  Set up the Arduino board and initialize Serial communication
*/
void setup() {
  Serial.begin(9600);
  pinMode(SPEAKER_PIN, OUTPUT);
}

/**
  The main game loop
*/
void loop() {
  if (boot) {
    boot = false;
    playPowerOn();
    delay(3000);
  }

  count = count + 1;
  if (count == 10) {
    recording = 1;
  } else if (count == 20) {
    recording = 2;
  }
  Serial.print("count: ");
  Serial.print(count);
  Serial.print(", recording: ");
  Serial.println(recording);

  if (recording == 0) {
    playPulse(2000);
  } else if (recording == 1) {
    playPulse(600);
  } else {
    playSOS();
    delay(2000);
  }
}

/**
  Plays a hooray sound whenever the user finishes a level
*/
void playPulse(int ms) {
  tone(SPEAKER_PIN, 500, 200);
  delay(200);
  noTone(SPEAKER_PIN);
  delay(ms);
}

/**
  Plays a hooray sound whenever the user finishes a level
*/
void playPowerOn() {
  for (int i = 0; i <= 2; i++) {
    tone(SPEAKER_PIN, 256, 1000);
    delay(500);
    noTone(SPEAKER_PIN);
    delay(500);
  }
  tone(SPEAKER_PIN, 500, 1000);
  delay(1000);
  noTone(SPEAKER_PIN);
  delay(200);
  noTone(SPEAKER_PIN);
}

/**
  Plays a hooray sound whenever the user finishes a level
*/
void playSOS() {
  for (int i = 0; i <= 2; i++) {
    tone(SPEAKER_PIN, 500, 100);
    delay(100);
    noTone(SPEAKER_PIN);
    delay(100);
  }
  delay(300);
  for (int i = 0; i <= 1; i++) {
    tone(SPEAKER_PIN, 500, 500);
    delay(500);
    noTone(SPEAKER_PIN);
    delay(200);
  }
  delay(300);
  for (int i = 0; i <= 2; i++) {
    tone(SPEAKER_PIN, 500, 100);
    delay(100);
    noTone(SPEAKER_PIN);
    delay(100);
  }
  noTone(SPEAKER_PIN);
}