//  * Rotary Tutorial: https://arduinogetstarted.com/tutorials/arduino-rotary-encoder
//  *  NeoPixel example: https://github.com/adafruit/Adafruit_NeoPixel/blob/master/examples/simple/simple.ino



#include <Adafruit_NeoPixel.h>

const int neoPin = 2;
const int num_pixels = 3;
const int delay_interval = 250;
const int pirPin = 12;
const int ledONBOARD = 13;       // <--Leave in for now

int motionState = 0;
int pirState = 0;
int latch = 0;

//int pixBrightness = 20;     //used as percentage
//int pixTemperature = 5000;  //used as kelvin (approx)

Adafruit_NeoPixel NeoPixel(num_pixels, neoPin, NEO_GRB + NEO_KHZ800);

void setup() {
  NeoPixel.begin();
  pinMode(pirPin, INPUT);
  pinMode(ledONBOARD, OUTPUT);
  Serial.begin(9600);
  delay(1000);
}

void loop() {
  NeoPixel.clear();   //Clears any pixel data

  motionState = digitalRead(pirPin);
  if (motionState == HIGH) {
    if (pirState == LOW) {
      pirState = HIGH;
      latch = !latch;
      if (latch == HIGH) {
        Serial.println("Latch ON");
        pixUpdate(20,5000,1);
        digitalWrite(ledONBOARD, HIGH);   // <--Leave in for now
      }
      else {
        Serial.println("latch OFF");
        digitalWrite(ledONBOARD, LOW);   // <--Leave in for now
        pixUpdate(20,5000,0);
        
      }
    }
  }

  else {
    if (pirState == HIGH) {
      pirState = LOW; 
    }
  }


}

//---Leave as void (nothing being returned as yet)
void pixUpdate(int pixBrightness, int pixTemperature, bool status) {
  NeoPixel.clear();

  // Do stuff to setup pixel values
  if (status) {
    for (int pixel = 0; pixel < num_pixels; pixel++) {
      NeoPixel.setPixelColor(pixel, NeoPixel.Color(120,120,120));
    }
  }
  else {
    NeoPixel.clear();
  }
  NeoPixel.show();
}