// This #include statement was automatically added by the Particle IDE.
#include <neopixel.h>
#define PIXEL_PIN D2
#define PIXEL_COUNT 16
#define PIXEL_TYPE WS2812

Adafruit_NeoPixel strip = Adafruit_NeoPixel(PIXEL_COUNT, PIXEL_PIN, PIXEL_TYPE);
int r = 0;
int b = 0;
int g = 0;
long lastPublishedAt = 0;
int publishAfter = 100; //the initial delay
bool blueOn = false; //color for Lily = blue

void setup() {
    strip.begin();
    Particle.subscribe("diot2021blossomblue" , handleSharedEvent);
    Particle.function("diot2021blossomnblue", BluePixelOn); //to turn on Lily's neopixel from the console

}

void loop() {
    // strip.show(); neopixel strip is off in the beginning
    publishPixelon(); //to give ddetails of the event to be published to all devices
}


int BluePixelOn(String b){ //functions for particle.function start with an int and take only string commands
  
        int bValue = b.toInt();  //first:convert string to number
        uint32_t blue = strip.Color(0, 0, bValue); //second: use the newly converted int to define blue

        uint16_t i;
        if (blueOn == true){
            for( int i = 0; i < strip.numPixels(); i++ ){
                strip.setPixelColor(i, blue); // each pixel to turn on blue one by one
                strip.show();
                delay( 200 );
            }
            blueOn = false;
        }
   
        delay(100);
    
        return 1;
}

void publishPixelon(){
    if ( lastPublishedAt + publishAfter < millis() ){
        String pixelOn = "diot2021blossomblue";
        if(blueOn == false){
            Particle.publish(pixelOn);
        }
        lastPublishedAt = millis();
    }
}


void handleSharedEvent(const char *event, const char *data){
    String pixelOn = String(event); // this is reading the function as per particle.publish, convert to a string object first
    String deviceID = System.deviceID();
    // device id = 
    // event being triggered = "diot2021blossomneopixel"
    if( pixelOn.indexOf( deviceID) != -1 ){
        return;
    }
    else{
        blueOn = true;
    }
}