/*******************************************************
  Fabricademy 2023-2024   Week5 E-Textile
  Book 
*******************************************************/
#include <Adafruit_NeoPixel.h>

#ifdef __AVR__
 #include <avr/power.h> // Required for 16 MHz Adafruit Trinket
#endif



#define PIN        6 // NeoPixel
#define NUMPIXELS  3// Number of NeoPixel
Adafruit_NeoPixel pixels(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

#define DELAYVAL 500 // Time (in milliseconds)？❓？？ to pause between pixels

const int btnM0Pin=3;       //Cover page button
const int btnM2Pin=4;       //page button
const int btnM3Pin=5;       //page button

const int sliderPin=0;   //Cloud slider 
const int pullPin=1;     //Cat pull sensor 
int mode=0;

int cr,cg, cb; //rgb color
int valM1, valM2, lastValM2, valM1L, valM1H, valM2L, valM2H ;

//----touch -------
int f=0;//
const int outPin = 8;  //Arduino
const int inPin = 9;  //Arduino
const int top=1500;   // for Arduino IDE Serial plotter
const int bottom=0;   // for Arduino IDE Serial plotter

//------------------------------------------------------------
//    Setup
//------------------------------------------------------------

void setup() {
  Serial.begin(9600); 
  pinMode(btnM0Pin, INPUT_PULLUP);
  pinMode(btnM2Pin, INPUT_PULLUP);
  pinMode(btnM3Pin, INPUT_PULLUP);

  pinMode(sliderPin, INPUT);
  pinMode(pullPin, INPUT_PULLUP);

  pinMode(outPin,OUTPUT);  // Touch: send pin
  pinMode(inPin,INPUT);  //receive pin
  
  pixels.begin(); // INITIALIZE NeoPixel strip object (REQUIRED)
  pixels.clear(); // Set all pixel colors to 'off'

  mode=0;
  
  iniMode1();
  iniMode2();
  
}
//------------------------------------------------------------
//    Loop
//------------------------------------------------------------

void loop() { 
  
  chkMode();
  
  switch(mode){
    case 0:  
        mode0();
      break;
    case 1:  
        mode1();
      break;
      
    case 2:
      mode2();
      break;
    case 3:  
        mode3();
      break;
  }
  delay(100);
}

//------------------------------------------------------------

void chkMode(){
      int a=readDdata(3,btnM0Pin);
      
      if(a==0){
        mode=0 ;
      }
       
  
/*  if(digitalRead(btnM0Pin)){
    if(digitalRead(btnM3Pin)){
      mode=3;
    }else if(digitalRead(btnM2Pin)){
      mode=2;    
    }else{
      mode=1;
    }
  }else{
    mode=0;
  }
*/
  
}

void mode0(){
      pixels.clear(); // Set all pixel colors to 'off
       pixels.show();  
       
      int a=readDdata(3,btnM0Pin);
      Serial.println(a);
      if(a){
        mode=1;
      }
}

void iniMode1(){
  int a=readAdata(10,sliderPin);
  valM1L=a; 
  valM1H=a;
}

void mode1(){
  //pixels.clear(); // Set all pixel colors to 'off'
 int a=readAdata(10,sliderPin);
 // int a=analogRead(sliderPin);
  
 valM1=map(a,valM1L,valM1H,0,8);
 // valM1=map(a,770,900,0,8);
  
  if(a>valM1H){ valM1H=a;}
  if((700<a) && (a<valM1L)){valM1L=a;}
  /*  
  Serial.print("a="); 
  Serial.print(a);
  Serial.print(",");
  
  Serial.print("valM1=");
  Serial.print(valM1);
  Serial.print(",");
  
  Serial.print("High=");
  Serial.print(valM1H);!
  Serial.print(",");

  Serial.print("Low=");
  Serial.println(valM1L);
   */


  Serial.print(a);
   Serial.print(",");
  Serial.println(0);
  
  
  switch(valM1){
    case 0:  //white
      cr=255; cg=255; cb= 255;
      pixels.setBrightness(255);
      break;
    case 1: //yellow
//      cr=255; cg=255; cb=1;
      cr=255; cg=255; cb=0;
      pixels.setBrightness(255);

      break;
    case 2: //orange
      cr=255; cg=128; cb= 0;
      pixels.setBrightness(255);

      break;
    case 3://green
      cr=0; cg=255; cb= 0;
      pixels.setBrightness(255);
      break;
 
    case 4: //Blue
      cr=0; cg=255; cb= 255;
      pixels.setBrightness(200);
      break;
    case 5: //Blue
      cr=0; cg=0; cb= 255;
      pixels.setBrightness(255);

      break;
    case 6: //Purple
      cr=127; cg=0; cb= 255;
      pixels.setBrightness(255);

      break;
    case 7: //Pink
      cr=255; cg=0; cb= 255;
      pixels.setBrightness(255);

      break;
    case 8: //Red
      cr=255; cg=51; cb= 51;
      pixels.setBrightness(255);

      break;
    

  }

 // The first NeoPixel in a strand is #0, second is 1, all the way up
  // to the count of pixels minus one.
  for(int i=0; i<NUMPIXELS; i++) { // For each pixel...

    // pixels.Color() takes RGB values, from 0,0,0 up to 255,255,255
    pixels.setPixelColor(i, pixels.Color(cr, cg, cb));
    pixels.show();   // Send the updated pixel colors to the hardware
  
  }
}

void iniMode2(){
  int a=readAdata(100,pullPin);
  valM2L=a; 
  valM2H=a;
}

void mode2(){
  
    // int a=analogRead(pullPin);
  int a = readAdata(100,pullPin);
  //valM2=map(a,valM2L,valM2H,0,5);
  //if(a>valM2H){ valM2H=a;}
  //if((10<a) && (a<valM2L)){valM2L=a;}
  
/*  Serial.print("a="); 
  Serial.print(a);
  Serial.print(",");
  
  Serial.print("valM2=");
  Serial.print(valM2);
  Serial.print(",");
  
  Serial.print("High=");
  Serial.print(valM2H);
  Serial.print(",");

  Serial.print("Low=");
  Serial.println(valM2L); 
  */


    Serial.println(a);

  if((a>lastValM2+20)|| (a<lastValM2-20)){
     cr=255; cg=255; cb=0;  //yellow
   }else{
     cr=0; cg=0; cb=0;
 
    }

   lastValM2 = a;

   for(int i=0; i<NUMPIXELS; i++) { // For each pixel...
    pixels.setPixelColor(i, pixels.Color(cr, cg, cb));
    pixels.show();   // Send the updated pixel colors to the hardware
  }
  

}

void mode3(){
  int a=chkTouch();
  
  if(f>100){
     cr=255; cg=0; cb=0;
   }else{
     cr=0; cg=0; cb=0;
    }

   for(int i=0; i<NUMPIXELS; i++) { // For each pixel...
    pixels.setPixelColor(i, pixels.Color(cr, cg, cb));
    pixels.show();   // Send the updated pixel colors to the hardware
  }
}

int readAdata(int n, int pin){
  long sum=0;
  //int n=100;
  
  for (int i=0; i<n; i++){
     sum += analogRead(pin);
  }
  return (int)(sum/n);
}

int readDdata(int n, int pin){
  long sum=0;
  //int n=100;
  
  for (int i=0; i<n; i++){
     sum += digitalRead(pin);
  }
  return (int)(sum/n);
}