// https://wokwi.com/projects/426066096877946881
// ezButtonMultipleHistory
// for https://forum.arduino.cc/t/button-pressing-order/1365333/71

/*
   Created by ArduinoGetStarted.com

   This example code is in the public domain

   Tutorial page: https://arduinogetstarted.com/tutorials/arduino-button-library

   This example:
     + uses debounce for multiple buttons.
     + reads state of multiple buttons
     + detects the pressed and released events of multiple buttons
*/

#include <ezButton.h>

int combinedButtonState = 0;

ezButton button1(6);  // create ezButton object that attach to pin 6;
ezButton button2(7);  // create ezButton object that attach to pin 7;
ezButton button3(8);  // create ezButton object that attach to pin 8;

void setup() {
  Serial.begin(9600);
  button1.setDebounceTime(50); // set debounce time to 50 milliseconds
  button2.setDebounceTime(50); // set debounce time to 50 milliseconds
  button3.setDebounceTime(50); // set debounce time to 50 milliseconds
}

void loop() {
  button1.loop(); // MUST call the loop() function first
  button2.loop(); // MUST call the loop() function first
  button3.loop(); // MUST call the loop() function first

  int btn1State = button1.getState();
  int btn2State = button2.getState();
  int btn3State = button3.getState();
  // Serial.print("button 1 state: ");
  // Serial.println(btn1State);
  // Serial.print("button 2 state: ");
  // Serial.println(btn2State);
  // Serial.print("button 3 state: ");
  // Serial.println(btn3State);

  if (button1.isPressed()) {
    Serial.println("The button 1 is pressed");
    updateCombinedState(1);
  }
  if (button1.isReleased()) {
    Serial.println("The button 1 is released");
  }
  if (button2.isPressed()) {
    Serial.println("The button 2 is pressed");
    updateCombinedState(2);
  }
  if (button2.isReleased()) {
    Serial.println("The button 2 is released");
  }
  if (button3.isPressed()) {
    Serial.println("The button 3 is pressed");
    updateCombinedState(3);
  }
  if (button3.isReleased()) {
    Serial.println("The button 3 is released");
  }
  report();
}

void updateCombinedState(int val) {
  combinedButtonState = combinedButtonState * 10 + val;
  if (combinedButtonState > 100) {
    Serial.print("Do thing #");
    Serial.println(combinedButtonState);
    switch(combinedButtonState){
      case 312: Serial.println("Winner!"); break;
      default: Serial.println("Loser!"); break;
    }
    combinedButtonState = 0;
  }
}

void report() {
  static int last = 0;
  if (combinedButtonState != last) {
    Serial.print("ButtonHistory: ");
    Serial.println(combinedButtonState);
    last = combinedButtonState;
    if (combinedButtonState > 1000) {
      combinedButtonState = 0 ;
    }
  }
}