#include <TinyDebug.h>

#include <TinyWireM.h>
#include <TinyLiquidCrystal_I2C.h>

#include <Adafruit_NeoPixel.h>

#include "MyButton.h"
#include "MyEncoder.h"

#define GPIO_ADDR     0x3F              // (PCA8574A A0-A2 @5V) typ. A0-A3 Gnd 0x20 / 0x38 for A

const byte encDtPin   {PB3} ;
const byte encClkPin  {PB4} ;
const byte encSwPin   {PB5} ;

const byte wsDtPin    {PB1};
const byte nbPixels   {12};

const byte i2cSclPin  {PB2};
const byte i2cSdaPin  {PB0};

Adafruit_NeoPixel pixels(nbPixels, wsDtPin, NEO_GRB + NEO_KHZ800);
TinyLiquidCrystal_I2C lcd(GPIO_ADDR, 20, 4);  // set address & 16 chars / 2 lines

MyEncoder encoder(encClkPin, encDtPin);
MyButton  button(encSwPin);

void pixelShow(int value)
{
  int numPxl ( value % nbPixels );
  if (numPxl < 0) 
  {
    numPxl += nbPixels;
  }
  for (int pxl=0; pxl < nbPixels; pxl++)
  {
    if ( numPxl == pxl)
    { 
      pixels.setPixelColor(pxl, pixels.Color(0, 0, 255));
    }
    else
    { 
      pixels.setPixelColor(pxl, pixels.Color(255, 0, 0));
    }
    pixels.show();
  }
}

void setup()
{
  //  Initialize Debugger
  Debug.begin();
  
  // Initialize encoder pins
  encoder.begin();
  button.begin();
  // Initialize pixelRing pins
  pixels.begin();
  // Initialize display pins
  lcd.begin(4, 20);
}

void loop() 
{
  // Lire l'encodeur
  MyEncoder::EncStatus encStatus = encoder.read();
  if ( encStatus != MyEncoder::EncNOCHG)
  {
    Debug.print(F("Valeur encodeur = "));
    Debug.println(encoder.counter());
    pixelShow(encoder.counter());
    
  }
  // Lire l'interrupteur
  if (button.read())
  {
    switch (button.status())
    { case MyButton::ButtonUP :
        Debug.print(F("Sens bouton = "));
        Debug.println(F("UP"));
        break;
      case MyButton::ButtonDOWN :
        Debug.print(F("Sens bouton = "));
        Debug.println(F("DOWN"));
    }
  }
}