//***********************
//Audio+Smoothing
//***********************
const int numReadings = 10;

int readings[numReadings];      // the readings from the analog input
int index = 0;                  // the index of the current reading
int total = 0;                  // the running total
int average = 0;                // the average

int micPin = A0;
int micVal;
int micMin = 33;
int micMax = 500;
//**************
//NeoPixel
//**************

#include <Adafruit_NeoPixel.h> //include the neopixel library
//declarations
#define PIXEL_PIN 6
#define NUMPIXELS 12
Adafruit_NeoPixel ring = Adafruit_NeoPixel(NUMPIXELS, PIXEL_PIN, NEO_GRB + NEO_KHZ800); //initialize neopixel object
//colors
uint32_t ringColor;

//Yellow(255,11,78)
//pink(255,133,152)
int yelr=255;int yelg=11;int yelb=78;
int pinkr=255;int pinkg=133;int pinkb=152;
//deepBlue(16,91,99)
//purple(51,37,50)
int deepr=16;int deepg=91;int deepb=91;
int purpr=51;int purpg=37;int purpb=50;

//******************
//Servo Motor
//******************
#include <Servo.h>

Servo myServo;
int servoPin = 10;
int servoPos = 0;
int minPos = 0;
int maxPos = 60;

//******************
//State Logic
//******************
int micThres = 200;//800
boolean closed = false;
boolean servoOn = false;
float counter = 0;
float countdown = 500;

void setup() {
  // put your setup code here, to run once:
    //Initialize Servo
  myServo.attach(servoPin);

  //Initialize NeoPixel
  ring.begin();
  ring.setBrightness(80);
  ring.show();

  Serial.begin(9600);
    myServo.write(maxPos);
}

void loop() {
    //smoothing
  micVal = smoothing();
  Serial.print("Mic: ");
  Serial.println(micVal);
  delay(1);        // delay in between reads for stability
  updateState();
  updatePos();
  updatePixels();
}

//Servo Motion
void updatePos() {
  servoPos = map(counter, 0, countdown, maxPos, minPos);
  servoPos = constrain(servoPos, minPos, maxPos);
  myServo.write(servoPos);
  Serial.print("Pos: ");
  Serial.println(servoPos);
  delay(15);
}

//neoPixel Update
void updatePixels() {
  int r = 0;int g = 0;int b = 0;
  int minr = 0;int ming = 0;int minb = 0;
  int maxr = 0;int maxg = 0;int maxb = 0;
  
  if(closed){
    minr=purpr;ming=purpg;minb=purpb;
    maxr=deepr;maxg=deepg;maxb=deepb;    
  }
  else{
    minr=yelr;ming=yelg;minb=yelb;
    maxr=pinkr;maxg=pinkg;maxb=pinkb; 
  }
  
  r = map(micVal, micMin, micMax, minr, maxr);
  g = map(micVal, micMin, micMax, ming, maxg);
  b = map(micVal, micMin, micMax, minb, maxb);
  ringColor = ring.Color(r, g, b);
  for (int i = 0; i < NUMPIXELS; i++)
  {
    ring.setPixelColor(i, ringColor);
  }
  ring.show();
}


void updateState(){
  if(!servoOn){
    if(micVal>micThres){closed = true;counter=countdown;}
    else{closed = false;counter=0;}
  }
  if(counter>0){counter--;servoOn=true;}
  else{servoOn = false;counter=0;}
  
//  Serial.print("close:");
//  Serial.print(closed);
//  Serial.print("; time:");
//  Serial.println(counter);
}
//sensorReading
int smoothing() {
  // subtract the last reading:
  total = total - readings[index];
  // read from the sensor:
  readings[index] = analogRead(micPin);
  // add the reading to the total:
  total = total + readings[index];
  // advance to the next position in the array:
  index = index + 1;

  // if we're at the end of the array...
  if (index >= numReadings)
    // ...wrap around to the beginning:
    index = 0;

  // calculate the average:
  average = total / numReadings;
  // send it to the computer as ASCII digits
  return average;
}