#include <MD_Parola.h>
#include <MD_MAX72xx.h>
#include <SPI.h>

#define HARDWARE_TYPE MD_MAX72XX::PAROLA_HW
#define MAX_DEVICES 1
#define CS_PIN 3
const char* Content = "Brian Pham";
int State = 1;
MD_Parola myDisplay = MD_Parola(HARDWARE_TYPE, CS_PIN, MAX_DEVICES);

void Read_Button() {
  if (digitalRead(4) != State) {
    int counter = 0;
    if (digitalRead(4) == 0) {
      State = 0;
      while(digitalRead(4) == 0){
        counter = counter + 1;
        Serial.println(counter);
      }
      if(counter < 100){
        myDisplay.displayText(Content, PA_CENTER, 100, 0, PA_SCROLL_LEFT, PA_SCROLL_LEFT);
      }
      else{
        myDisplay.displayText(Content, PA_CENTER, 100, 0, PA_SCROLL_RIGHT, PA_SCROLL_RIGHT);
      }
    }
    else State = 1;
  }
}

void setup() {
  pinMode(4, INPUT_PULLUP);
  Serial.begin(9600);
  myDisplay.begin();
  myDisplay.setIntensity(0);
  myDisplay.displayClear();
  myDisplay.displayText(Content, PA_CENTER, 100, 0, PA_SCROLL_LEFT, PA_SCROLL_LEFT);
  Serial.println("Start Program...");
}

void loop() {
  Read_Button();
  if (Serial.available() > 0) {
    String data = Serial.readString();
    data.trim();
    data.toCharArray(Content, data.length() + 1);
    Serial.println(Content);
  }

  if (myDisplay.displayAnimate()) {
    myDisplay.displayReset();
  }
}