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

#define PIXEL_PIN D2
#define PIXEL_COUNT 150
#define PIXEL_TYPE WS2812B

Adafruit_NeoPixel strip(PIXEL_COUNT, PIXEL_PIN, PIXEL_TYPE);

// Prototypes for local build, ok to leave in for Build IDE
void rainbow(uint8_t wait);
uint32_t Wheel(byte WheelPos);
int distance = A0;
int brightness = 0;
int fadeAmount = -5;
int waitTime = 100;

void setup() {
  pinMode(distance, INPUT);
  Serial.begin(9600);
  strip.begin();
  strip.show(); // Initialize all pixels to 'off'
}

void loop() {
    int dist = analogRead(distance);
    Serial.print("distance is:"); Serial.println(dist); Serial.println();
    if (dist > 670){
        Serial.print("made into loop with brightness:"); Serial.println(brightness);
        rainbow(waitTime);
        if (brightness < 5 || brightness >= 255) {
            fadeAmount = -fadeAmount;
        }
        
        brightness = brightness + fadeAmount;
    } else {
        rainbow(waitTime);
    }
    delay(waitTime);
}

void rainbow(uint8_t wait) {
  uint16_t i, j;
  
    for(i=0; i<strip.numPixels(); i++) {
      uint32_t c = strip.Color(brightness, brightness, brightness);
      strip.setPixelColor(i, c);
    }
  
    strip.show();
}