/*
 * Copyright 2011 by Graz University of Technology, Austria
 * MOCCA has been developed by the E-Government Innovation Center EGIZ, a joint
 * initiative of the Federal Chancellery Austria and Graz University of Technology.
 *
 * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
 * the European Commission - subsequent versions of the EUPL (the "Licence");
 * You may not use this work except in compliance with the Licence.
 * You may obtain a copy of the Licence at:
 * http://www.osor.eu/eupl/
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the Licence is distributed on an "AS IS" basis,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Licence for the specific language governing permissions and
 * limitations under the Licence.
 *
 * This product combines work with different licenses. See the "NOTICE" text
 * file for details on the various modules and licenses.
 * The "NOTICE" text file is part of the distribution. Any derivative works
 * that you distribute must include a readable copy of the "NOTICE" text file.
 */


package at.gv.egiz.smcc.pin.gui;

import at.gv.egiz.smcc.BulkSignException;
import at.gv.egiz.smcc.CancelledException;
import at.gv.egiz.smcc.PinInfo;

public class InvalidPINProvider extends DummyPINGUI implements PINGUI {

  int provided = 0;
  int numWrongTries = 0;
  char[] pin;

  public InvalidPINProvider(char[] pin, int numWrongTries) {
    super();
    this.pin = pin;
    this.numWrongTries = numWrongTries;
  }

  @Override
  public char[] providePIN(PinInfo spec, int retries)
          throws CancelledException, InterruptedException, BulkSignException {
    if (provided >= numWrongTries) {
      throw new CancelledException("Number of wrong tries reached: " + provided);
    } else {
      provided++;
      return pin;
    }
  }

  public int getProvided() {
    return provided;
  }
}