/**
    * Copyright 2013 The Kuali Foundation Licensed under the
    * Educational Community License, Version 2.0 (the "License"); you may
    * not use this file except in compliance with the License. You may
    * obtain a copy of the License at
    *
    * http://www.osedu.org/licenses/ECL-2.0
    *
    * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an "AS IS"
   * BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
   * or implied. See the License for the specific language governing
   * permissions and limitations under the License.
   *
   * Created by Charles on 5/30/13
   */
  package org.kuali.student.enrollment.class2.courseoffering.service.util;
  
  import edu.emory.mathcs.backport.java.util.Arrays;
  import org.kuali.student.enrollment.class2.courseoffering.service.exception.PseudoUnitTestException;
  import org.kuali.student.r2.common.util.constants.LuiServiceConstants;
  
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * This class defines a Registration Group state result
   *
   * @author Kuali Student Team
   */
  public class RegGroupStateResult {
      private List<String> expected;
      private List<String> actual;
      private int numAos;
      private int numPermutations;
      private static List<String> RG_STATES = Arrays.asList(LuiServiceConstants.REGISTRATION_GROUP_LIFECYCLE_KEY_STATES);
  
      public RegGroupStateResult(int numAos) {
          // The index
          this.numAos = numAos;
          numPermutations = (int) Math.pow(2, numAos);
          expected = new ArrayList<String>();
          actual = new ArrayList<String>();
          while (expected.size() < numPermutations) {
              expected.add(LuiServiceConstants.REGISTRATION_GROUP_PENDING_STATE_KEY);
              actual.add("empty");
          }
          expected.set(expected.size() - 1, LuiServiceConstants.REGISTRATION_GROUP_OFFERED_STATE_KEY);
      }
  
      public String getExpected(int index) {
          return expected.get(index);
      }
  
      public String getActual(int index) {
          return actual.get(index);
      }
  
      public void setActual(int index, String rgState) throws PseudoUnitTestException {
          if (!RG_STATES.contains(rgState)) {
              throw new PseudoUnitTestException("Invalid rgState: " + rgState);
          }
          actual.set(index, rgState);
      }
  
      public int size() {
          return expected.size();
      }
  
      public int numAos() {
          return numAos;
      }
  }