// ------------ Receive Side -------------

// This #include statement was automatically added by the Particle IDE.
#include <neopixel.h>



#define PIXEL_PIN D4
#define PIXEL_COUNT 3
#define PIXEL_TYPE WS2812
 
Adafruit_NeoPixel strip = Adafruit_NeoPixel(PIXEL_COUNT, PIXEL_PIN, PIXEL_TYPE);

int buttonPin = D1;

int redValue = 0; 
int greenValue = 0;
int blueValue = 0;
int val;
// This value will store the last time we published an event
long lastPublishedAt = 0;
// this is the time delay before we should publish a new event
// from this device
int publishAfter = 10000;



void setup()
{
  strip.begin();
  strip.show();
  strip.clear();
  pinMode (buttonPin, INPUT_PULLUP);
  // We'll want to subscribe to an event thats fairly unique

  // From the Particle Docs
  // A subscription works like a prefix filter.
  // If you subscribe to "foo", you will receive any event
  // whose name begins with "foo", including "foo", "fool",
  // "foobar", and "food/indian/sweet-curry-beans".

  // Basically this will match any event that starts with 'db2018/paired/'
  // This is a feature we'll useto figure out if our event comes from
  // this device or another (see publishMyEvent below)

  Particle.subscribe(  "diot/2019/paired/sijiavedhachun" , handleSharedEvent );
  

}

void loop()
{
  
    // publish my event
    // you'll want some more complex stuff here
    val = digitalRead( buttonPin );
    

  // if the button is pushed
  if( val == LOW )
  {
      // The doorbell is pushed
    // for( int i = 0; i < strip.numPixels(); i++ ){
    //     strip.setPixelColor(i, e); // set a color 
    // }
    // strip.show();
      publishMyEvent();

      // Wait for 2.5 seconds before letting
      // another event happen
      delay( 2500 );
  }
    
    

    // delay for a bit
    delay(100);
}


void publishMyEvent()
{
  // Remember that a device can publish at rate of about 1 event/sec,
  // with bursts of up to 4 allowed in 1 second.
  // Back to back burst of 4 messages will take 4 seconds to recover.
  // So we want to limit the amount of publish events that happen.

  // check that it's been 10 secondds since our last publish
  if( lastPublishedAt + publishAfter < millis() )
  {
      // Remember our subscribe is matching  "db2018/paired/"
      // We'll append the device id to get more specific
      // about where the event came from

      // System.deviceID() provides an easy way to extract the device
      // ID of your device. It returns a String object of the device ID,
      // which is used to identify your device.

      String eventName = "diot/2019/paired/sijiavedhachun" + System.deviceID();

      // now we have something like "diot/2019/paired/0123456789abcdef"
      // and that corresponds to this devices info

      // then we share it out
      Particle.publish( eventName, "data goes here" );

      // And this will get shared out to all devices using this code

      // we just pubished so capture this.
      lastPublishedAt = millis();
  }

}

// Our event handlde requires two bits of information
// This gives us:
// A character array that consists of the event name
// A character array that contains the data published in the event we're responding to.
void handleSharedEvent(const char *event, const char *data)
{
   int brightness = 0;
   unsigned long lastFade = 0;
   
    // Now we're getting ALL events published using "db2018/paired/"
    // This includes events from this device.
    // So we need to ignore any events that we sent.
   uint16_t i;
   uint32_t w = strip.Color(255, 255, 255);
   uint32_t off = strip.Color(0, 0, 0);

   uint32_t q = strip.Color(0, 0, 255);
   uint32_t e = strip.Color(255, 0, 255);
   uint32_t r = strip.Color(255, 0, 0);
    // Let's check the event name
    String eventName = String( event ); // convert to a string object
    // This gives us access to a bunch of built in methods
    // Like indexOf()
    // Locates a character or String within another String.
    // By default, searches from the beginning of the String,
    // but can also start from a given index,
    // allowing for the locating of all instances of the character or String.
    // It Returns: The index of val within the String, or -1 if not found.

    // We can use this to check if our event name contains the
    // id of this device

    String deviceID = System.deviceID();

    // device id = 0123456789abcdef
    // event = "diot/2019/paired/0123456789abcdef"

    if( eventName.indexOf( deviceID ) != -1 ){
      // if we get anything other than -1
      // the event came from this device.
      // so stop doing stuff
      return;
    }
    
    else{
        
       
		unsigned long now = millis();
		
    //  while ((now - lastFade) <= 2000){
    //      now = millis();
            
		  //for( int i = 0; i < strip.numPixels(); i++ ){
    //       strip.setPixelColor(i, w); // set a color 
    //       }
    //       strip.setBrightness(255); 
    //       strip.show();
          
           
    //  }
// 		{
         for (brightness = 0; brightness <= 255; brightness = brightness + 5){
		  		     
		     
		  for( int i = 0; i < strip.numPixels(); i++ ){
          strip.setPixelColor(i, w); // set a color 
           }
        
          strip.setBrightness(brightness);   
          strip.show();
          delay(100);
        

		 }
     
         delay (500);
    
		 for (brightness = 255; brightness >= 0; brightness = brightness - 5){
		  		     
		     8
		  for( int i = 0; i < strip.numPixels(); i++ ){
          strip.setPixelColor(i, w); // set a color 
           }
        
          strip.setBrightness(brightness);   
          strip.show();
          delay(100);
        

		 }
		
			// if we haven't yet reached
			// off or zero... then fade
			
// 		}
    }

    // otherwise do your stuff to respond to
    // the paired device here

    //motorOn = true;

}