/*!
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* Copyright (c) 2002-2013 Pentaho Corporation..  All rights reserved.
*/

package org.pentaho.reporting.engine.classic.wizard.model;

public class DefaultWizardSpecification implements WizardSpecification {
  private static final GroupDefinition[] EMPTY_GROUPS = new GroupDefinition[ 0 ];
  private static final DetailFieldDefinition[] EMPTY_FIELDS = new DetailFieldDefinition[ 0 ];

  private DetailFieldDefinition[] detailFieldDefinitions;
  private GroupDefinition[] groupDefinitions;
  private RootBandDefinition columnHeader;
  private RootBandDefinition columnFooter;
  private WatermarkDefinition watermarkDefinition;
  private boolean autoGenerateDetails;

  public DefaultWizardSpecification() {
    groupDefinitions = EMPTY_GROUPS;
    detailFieldDefinitions = EMPTY_FIELDS;
    watermarkDefinition = new DefaultWatermarkDefinition();
    columnFooter = new DefaultRootBandDefinition();
    columnHeader = new DefaultRootBandDefinition();
  }

  public boolean isAutoGenerateDetails() {
    return autoGenerateDetails;
  }

  public void setAutoGenerateDetails( final boolean autoGenerateDetails ) {
    this.autoGenerateDetails = autoGenerateDetails;
  }

  public DetailFieldDefinition[] getDetailFieldDefinitions() {
    return (DetailFieldDefinition[]) detailFieldDefinitions.clone();
  }

  public void setDetailFieldDefinitions( final DetailFieldDefinition[] detailFieldDefinitions ) {
    for ( int i = 0; i < detailFieldDefinitions.length; i++ ) {
      final DetailFieldDefinition fieldDefinition = detailFieldDefinitions[ i ];
      if ( fieldDefinition == null ) {
        throw new NullPointerException();
      }
    }
    this.detailFieldDefinitions = (DetailFieldDefinition[]) detailFieldDefinitions.clone();
  }

  public GroupDefinition[] getGroupDefinitions() {
    return (GroupDefinition[]) groupDefinitions.clone();
  }

  public void setGroupDefinitions( final GroupDefinition[] groups ) {
    for ( int i = 0; i < groups.length; i++ ) {
      final GroupDefinition group = groups[ i ];
      if ( group == null ) {
        throw new NullPointerException();
      }
    }
    groupDefinitions = (GroupDefinition[]) groups.clone();
  }

  public RootBandDefinition getColumnHeader() {
    return columnHeader;
  }

  public RootBandDefinition getColumnFooter() {
    return columnFooter;
  }

  public WatermarkDefinition getWatermarkDefinition() {
    return watermarkDefinition;
  }

  public Object clone() throws CloneNotSupportedException {
    final DefaultWizardSpecification o = (DefaultWizardSpecification) super.clone();
    o.watermarkDefinition = (WatermarkDefinition) watermarkDefinition.clone();
    o.columnHeader = (RootBandDefinition) columnHeader.clone();
    o.columnFooter = (RootBandDefinition) columnFooter.clone();
    o.groupDefinitions = (GroupDefinition[]) groupDefinitions.clone();
    for ( int i = 0; i < groupDefinitions.length; i++ ) {
      o.groupDefinitions[ i ] = (GroupDefinition) groupDefinitions[ i ].clone();
    }
    o.detailFieldDefinitions = (DetailFieldDefinition[]) detailFieldDefinitions.clone();
    for ( int i = 0; i < detailFieldDefinitions.length; i++ ) {
      o.detailFieldDefinitions[ i ] = (DetailFieldDefinition) detailFieldDefinitions[ i ].clone();
    }
    return o;
  }
}