#include "neopixel.h"
#include <math.h>

// IMPORTANT: Set pixel COUNT, PIN and TYPE
#define PIXEL_PIN D0
#define PIXEL_COUNT 50
#define PIXEL_TYPE WS2812

Adafruit_NeoPixel strip = Adafruit_NeoPixel(PIXEL_COUNT, PIXEL_PIN, PIXEL_TYPE);
int shouldRun = 0



void setup()
{
  Particle.subscribe("sleepstar/2p", myHandler);

  strip.begin();
  strip.show();
}



void loop()
{
if(shouldRun == 1) {
  breathe1(50);
  breathe2(50);
  breathe3(50);
  breathe4(50);
} else if (shouldRun == 0){
  breathe5(50);
  }

}


void myHandler(const char *event, const char *data)
{
  String dataStr = String(data);
  if( dataStr.equals( "run" )) {
    shouldRun = 1;
  }else if ( dataStr.equals( "stop" )){
    shouldRun = 0;
  }
}



float breathe1(uint8_t wait){

  float val = (exp(sin(millis()/2000.0*M_PI+1)) - 0.36787944)*20.0  ; //108.0
  uint16_t i;
  uint32_t c = strip.Color(val, val, val);

  int array[] = {14,41,24,49,22,10};
  int a;
  for(a=0; a<6; a++) {
    i = array[a];
    strip.setPixelColor(i, c );
  }
  strip.show();
  delay (wait);
}




float breathe2(uint8_t wait){

  float val = (exp(sin(millis()/10000.0*M_PI)) - 0.36787944)*10.0  ; //108.0
  uint16_t i;
  uint32_t c = strip.Color(val, val, val);
  int array[] = {31,0,46,4,38,6,44,39,18,32,35,33,48,47,20};
  int a;
  for(a=0; a<15; a++) {
    i = array[a];
    strip.setPixelColor(i, c );
  }
  strip.show();
  delay (wait);
}


float breathe3(uint8_t wait){

  float val = (exp(sin(millis()/2000.0*M_PI+3)) - 0.36787944)*20.0  ; //108.0
  uint16_t i;
  uint32_t c = strip.Color(val, val, val);

  int array[] = {36,45,2,43,28,37};
  int a;
  for(a=0; a<6; a++) {
    i = array[a];
    strip.setPixelColor(i, c );
  }
  strip.show();
  delay (wait);
}


float breathe4(uint8_t wait){
  float val = (exp(sin(millis()/20000.0*M_PI+1.2)) - 0.36787944)*20.0 ; //108.0
  uint16_t i;
  uint32_t c = strip.Color(val, val, val);

  int array[] = {12,40,16,8,30,34,26,42};
  int a;
  for(a=0; a<8; a++) {
    i = array[a];
    strip.setPixelColor(i, c );
  }
  strip.show();
  delay (wait);
}


float breathe5(uint8_t wait){
  uint16_t i;
  uint32_t c = strip.Color(0, 0, 0);

  for(i=0; i< strip.numPixels(); i++) {
      strip.setPixelColor(i, c );
    }
  strip.show();
  delay (wait);
}