#include "pitches.h"
#include "SevSeg.h"

#define SPEAKER_PIN 0
#define greenLED_pin 1
#define mSensor_pin 2

const int buttonTones[] = {
  NOTE_C4, NOTE_D4, NOTE_E4, NOTE_F4,
  NOTE_G4, NOTE_A4, NOTE_B4, NOTE_C5
};


static unsigned long timer = millis();
static unsigned long timerLoop = millis();
const int COUNTDOWN_SEC = 15;
static int deciSeconds = COUNTDOWN_SEC*10;
static bool gotMotion = false;
static bool countdown_ended = false;

//bool greenLEDon = true;

SevSeg sevseg; //Instantiate a seven segment controller object

void setup() {

  // put your setup code here, to run once:
  //pinMode(greenLED_pin, OUTPUT);
  //digitalWrite(greenLED_pin, HIGH);

  pinMode(mSensor_pin, INPUT);

  //pinMode(SPEAKER_PIN, OUTPUT);

  Serial.begin(9600);

  byte numDigits = 3;
  byte digitPins[] = {3, 4, 5};
  byte segmentPins[] = {6, 7, 8, 9, 10, 11, 12, 13};
  bool resistorsOnSegments = false; // 'false' means resistors are on digit pins
  byte hardwareConfig = COMMON_ANODE; // See README.md for options
  bool updateWithDelays = false; // Default 'false' is Recommended
  bool leadingZeros = false; // Use 'true' if you'd like to keep the leading zeros
  bool disableDecPoint = false; // Use 'true' if your decimal point doesn't exist or isn't connected

  sevseg.begin(hardwareConfig, numDigits, digitPins, segmentPins, resistorsOnSegments,
  updateWithDelays, leadingZeros, disableDecPoint);
  sevseg.setBrightness(90);
}

void playTune() {

    tone(SPEAKER_PIN, NOTE_C4);
    delay(100);
    tone(SPEAKER_PIN, NOTE_D4);
    delay(100);
    tone(SPEAKER_PIN, NOTE_E4);
    delay(100);
    tone(SPEAKER_PIN, NOTE_F4);
    delay(100);
    noTone(SPEAKER_PIN);
}

void updateTimer() {

  sevseg.setNumber(deciSeconds, 1);
  if (millis() - timer >= 100) {
    timer += 100;
    deciSeconds--; // 100 milliSeconds is equal to 1 deciSecond

    if (deciSeconds == 0) { // Reset to 0 after counting for 1000 seconds.
      //deciSeconds=COUNTDOWN_SEC*10;
      countdown_ended = true;
      Serial.println("BOOMMM!!!!");
    }
    sevseg.setNumber(deciSeconds, 1);
  }

  //sevseg.refreshDisplay(); // Must run repeatedly
}

void checkMotion() {

  if (deciSeconds % 10 == 0) {
    gotMotion = digitalRead(mSensor_pin) == 1;

    if (gotMotion) {
      Serial.println("Got some montion!");
      //playTune();
    }
    else {
      Serial.println("No motion!");
      //noTone(SPEAKER_PIN);
    }
  }
}

void loop() {

  // digitalWrite(greenLED_pin, greenLEDon?LOW:HIGH);
  // greenLEDon=!greenLEDon;

  if (millis() - timerLoop >= 100) {
    timerLoop += 100;

    if (!gotMotion)
      checkMotion();

    if (gotMotion && !countdown_ended) {

      updateTimer();
    }
  }

  sevseg.refreshDisplay(); // Must run repeatedly
}