#include <ezButton.h>

#define ROT_A 12
#define ROT_B 11
#define LEDS 10
ezButton button (6);

int brightness = 125;
int power = 0;
int aState;
int aLastState;

void setup() {
  // Initialize pins
  pinMode(ROT_A, INPUT_PULLUP);
  pinMode(ROT_B, INPUT_PULLUP);
  pinMode(LEDS, OUTPUT);

  // Configure button debounce
  button.setDebounceTime(50);

  aLastState = digitalRead(ROT_A);
}

void loop() {
  // Initialize ezbutton
  button.loop();
  
  // ROTARY ENCODER CONTROL //

  // Read state of encoder pin A
  aState = digitalRead(ROT_A);

  // Check if it's changed
  if (aState != aLastState && aState == 1){
    if (digitalRead(ROT_B) != aState){ // If it has...
      if (brightness < 225 && brightness >= 5){
        brightness += 5;  // Up the brightness
      }
      else if (brightness < 5) {
        brightness++;  // If our brightness is low (below duty cycle 5) we only want one step
      }
      else if (brightness >= 225 && brightness < 255) {
        brightness += 10; // As we get brighter we need larger steps
      }
    } else {
      if (brightness > 5 && brightness < 225){
        brightness -= 5;
      }
      else if (brightness <= 5 && brightness > 1) {
        brightness--;
      }
      else if (brightness >= 225) {
        brightness -= 10;
      }
    }
  }
  
  aLastState = aState;

  // BUTTON CONTROL //

  // Check button state
  if (button.isPressed()){
    if (power == 0){ // If off, turn on...
      power = 1;
    } else {  // If on, turn off
      power = 0;
    }
  }
  
  if (button.isReleased()){
    // DO NOTHING
  }
    
  if (power == 1) {
    analogWrite (LEDS, brightness);
  } else {
    analogWrite (LEDS, 0);
  }
  delay(1);
}