#include <SoftwareSerial.h>

class RfidClass {
  private:
    SoftwareSerial* serD;
    void init(void);
    String rmsg;
  public:
    RfidClass(void);
    bool hasData(void);
    String getData(void);
    bool allowed(void);
    void clear(void);
};

RfidClass::RfidClass(void) {
  this->init();
}

void RfidClass::init(void) {
  this->serD = new SoftwareSerial (9, 8);
  this->serD->begin(9600);
}

bool RfidClass::hasData(void) {
  this->serD->listen();
  if(this->serD->available()) {
     this->rmsg += (char)this->serD->read();
  }
  if(this->rmsg.length() >= 14) {
    this->rmsg = this->rmsg.substring(1,13);
    return true;
  }
  return false;
}

String RfidClass::getData(void){
  return this->rmsg;
}

bool RfidClass::allowed() {
  return (this->rmsg == "0A006AB7AE79");
}

void RfidClass::clear(void) {
  this->rmsg = "";
}