#include <FastLED.h>
#define NUM_LEDS 10
#define DATA_PIN 16 //How boring and obvious!
#define COLOR_ORDER GRB //Green (G), Red (R), Blue (B)
#define CHIPSET WS2812B
#define BRIGHTNESS 255
#define VOLTS 5
#define MAX_AMPS 20000 //value in milliamps

const byte interruptPin = 17;
volatile byte state = LOW;
int tCount = 0;

CRGB leds[NUM_LEDS];
String butStr;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  butStr = String("Buttons: ");

  FastLED.addLeds<CHIPSET, DATA_PIN, COLOR_ORDER>(leds, NUM_LEDS);
  FastLED.setMaxPowerInVoltsAndMilliamps(VOLTS, MAX_AMPS);
  FastLED.setBrightness(BRIGHTNESS);
  FastLED.clear();
  FastLED.show();



}

void loop() {
  // put your main code here, to run repeatedly:
  bool RedButOn = (digitalRead(17));
  bool GrnButOn = (digitalRead(5));
  bool BluButOn = (digitalRead(18));

  butStr.concat(digitalRead(17));
  butStr.concat(digitalRead(5));
  butStr.concat(digitalRead(18));
  Serial.println(butStr);
  butStr = String("Buttons: ");
  if (RedButOn) {
    //FastLED.showColor(CRGB::Red);
    for (int i = 0; i < NUM_LEDS; i++) {
      leds[i] = CRGB(0, 255 - 10 * i, 10 * i);
      FastLED.show();
      millisDelay(30);

    }
    for (int i = NUM_LEDS - 1; i >= 0; i--) {
      leds[i] = CRGB(10 * i, 0, 255 - 10 * i);
      FastLED.show();
      millisDelay(30); //even shorter delay this time
    }
    RedButOn = false;
  } else if (GrnButOn) {
    FastLED.showColor(CRGB::Green);
    GrnButOn = false;
  } else if (BluButOn) {
    FastLED.showColor(CRGB::Blue);
    BluButOn = false;
  } else {
    FastLED.showColor(CRGB::Black);
  }
  //leds[0] = CRGB::White; FastLED.show(); delay(30);
  //leds[0] = CRGB::Black; FastLED.show(); delay(30);
  delay(10); // this speeds up the simulation
  Serial.println(tCount++);
}

void millisDelay( long int delayTime) {
  long int start_time = millis();
  while ( millis() - start_time < delayTime) ;
}