#include "Adafruit_NeoPixel.h"
#include "SoftwareSerial.h"
#include "DFRobotDFPlayerMini.h"

#define LED1 5
#define LED2 6
#define LED3 7
#define LED4 8
#define NUM_LIGHTS  60
#define lightStripLen 2

#define out9  9

#define startPin A0
#define stopPin A1

#define outputPin 4

SoftwareSerial mySoftwareSerial(3, 2); // RX, TX
DFRobotDFPlayerMini myDFPlayer;

int state = 0;


int r1 [6] = {255, 255, 255,   0, 255, 255};
int g1 [6] = {255,   0, 255, 255, 255,   0};
int b1 [6] = {255,   0, 255,   0, 255, 255};

int pozycje[4] = {0, 0, 0, 0};
int kolory[4] = {0, 0, 0, 0};

Adafruit_NeoPixel strip1 = Adafruit_NeoPixel(NUM_LIGHTS, LED1, NEO_GRB + NEO_KHZ800);
Adafruit_NeoPixel strip2 = Adafruit_NeoPixel(NUM_LIGHTS, LED2, NEO_GRB + NEO_KHZ800);
Adafruit_NeoPixel strip3 = Adafruit_NeoPixel(NUM_LIGHTS, LED3, NEO_GRB + NEO_KHZ800);
Adafruit_NeoPixel strip4 = Adafruit_NeoPixel(NUM_LIGHTS, LED4, NEO_GRB + NEO_KHZ800);

Adafruit_NeoPixel list[4] = {strip1, strip2, strip3, strip4};

int num = 0;
int32_t timeStart = 0;
void setup()
{
  mySoftwareSerial.begin(9600);
  Serial.begin(115200);


  if (!myDFPlayer.begin(mySoftwareSerial)) {  //Use softwareSerial to communicate with mp3.
    Serial.println("podłączony dfplayer!");
    Serial.println(F("Unable to begin:"));
    Serial.println(F("1.Please recheck the connection!"));
    Serial.println(F("2.Please insert the SD card!"));
    while (true) {
      delay(0); // Code to compatible with ESP8266 watch dog.
    }
  }
  Serial.println(F("DFPlayer Mini online."));

  myDFPlayer.volume(30);  //Set volume value. From 0 to 30


  strip1.begin();
  strip1.show(); // Initialize all pixels to 'off'
  strip2.begin();
  strip2.show(); // Initialize all pixels to 'off'
  strip3.begin();
  strip3.show(); // Initialize all pixels to 'off'
  strip4.begin();
  strip4.show(); // Initialize all pixels to 'off'


  pinMode(startPin, INPUT_PULLUP);
  pinMode(stopPin, INPUT_PULLUP);
  pinMode(outputPin, OUTPUT);
}


int getDelay(int num)
{
  if (num < 300)
    return 500 / (num + 1) + 20;
  else
    return 10;
}

void loop()
{
  if (state == 0)
  {
    if (millis() - timeStart > 3 * 60 * 1000)
    {
      digitalWrite(outputPin, HIGH);
      myDFPlayer.play(1);
    }

    if (millis() - timeStart > 3 * 60 * 1000 + 10 * 1000)
    {
      digitalWrite(outputPin, LOW);
      timeStart = millis();
    }

    for (int i = 0; i < 4; i++)
    {
      if (pozycje[i] == -1)
      {
        if (random(100) < 5)
        {
          pozycje[i] = 0;
          kolory[i] = random(6);
        }
      }
      else
      {
        int len = 2;
        printNleds(&(list[i]), pozycje[i], len, kolory[i]);
        pozycje[i] += 1;
        if (pozycje[i] > NUM_LIGHTS)
        {
          pozycje[i] = -1;
        }
      }
    }

    delay(getDelay(num));
    Serial.println(getDelay(num));
    num++;
  }

  if (digitalRead(startPin) == 0)
  {
    if (state == 0)
      timeStart = millis();

    state = 1;
  }
  else
  {
    state = 0;
    num = 0;
  }
}



void printNleds(Adafruit_NeoPixel* x, int start, int amount, int n)
{
  for (int i = 0; i < NUM_LIGHTS; i++)
    x->setPixelColor(i, x->Color(0, 0, 0));

  for (int i = start; i < start + amount; i++)
    x->setPixelColor(i, x->Color(r1[n], g1[n], b1[n]));

  x->show();
}