// This #include statement was automatically added by the Particle IDE.
#include <neopixel.h>
// IMPORTANT: Set pixel COUNT, PIN and TYPE
#define PIXEL_PIN D2
#define PIXEL_COUNT 16
#define PIXEL_TYPE WS2812

Adafruit_NeoPixel strip = Adafruit_NeoPixel(PIXEL_COUNT, PIXEL_PIN, PIXEL_TYPE);

long timeAtParticleFuction = 0;
long turnOffAfter = 15*60*1000;

bool lightOn = false;

void setup() {
    
    strip.begin();
    strip.show(); // Initialize all pixels to 'off'
    Particle.function("turnOn", turnOn );

}

int turnOn(String command)
{
   lightOn = true;
   timeAtParticleFuction = millis();
   return 0;
   
}


void loop() {
    
    uint16_t i;
    long timeNow = millis();
    
    if(lightOn == true){
        
        for(i=0; i< strip.numPixels(); i++) {
            //turn on the pixel one by one, as blue
            strip.setPixelColor(i, 0, 0, 255); //blue
            strip.show();
            delay(100);
            strip.setPixelColor(i, 0, 0, 0);
            strip.show();
            delay(100);
        }
		// turn off all the light when 0 min left
		if (timeAtParticleFuction + turnOffAfter < timeNow){
		    
		    lightOn = false;
		}
		
    }else{
        for(i=0; i< strip.numPixels(); i++) {
            strip.setPixelColor(i, 0, 0, 0);
        }
		    strip.show();
    }

}