/*!
 * 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.core.function;

import org.pentaho.reporting.engine.classic.core.CompoundDataFactory;
import org.pentaho.reporting.engine.classic.core.DataFactory;
import org.pentaho.reporting.engine.classic.core.DataRow;
import org.pentaho.reporting.engine.classic.core.ResourceBundleFactory;
import org.pentaho.reporting.engine.classic.core.StaticDataRow;
import org.pentaho.reporting.engine.classic.core.layout.output.DefaultProcessingContext;
import org.pentaho.reporting.engine.classic.core.wizard.DataSchema;
import org.pentaho.reporting.engine.classic.core.wizard.DefaultDataSchema;
import org.pentaho.reporting.libraries.base.config.Configuration;

import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;

public class GenericExpressionRuntime implements ExpressionRuntime {
  private DataRow dataRow;
  private Configuration configuration;
  private ResourceBundleFactory resourceBundleFactory;
  private TableModel data;
  private int currentRow;
  private ProcessingContext processingContext;
  private DataSchema dataSchema;
  private DataFactory dataFactory;

  public GenericExpressionRuntime() {
    this( new DefaultTableModel(), 0, new DefaultProcessingContext() );
  }

  public GenericExpressionRuntime( final TableModel data, final int currentRow,
      final ProcessingContext processingContext ) {
    this( new StaticDataRow(), data, currentRow, processingContext );
  }

  public GenericExpressionRuntime( final DataRow dataRow, final TableModel data, final int currentRow,
      final ProcessingContext processingContext ) {
    if ( processingContext == null ) {
      throw new NullPointerException();
    }
    if ( dataRow == null ) {
      throw new NullPointerException();
    }
    if ( data == null ) {
      throw new NullPointerException();
    }

    this.processingContext = processingContext;
    this.data = data;
    this.currentRow = currentRow;
    this.dataRow = dataRow;
    this.configuration = this.processingContext.getConfiguration();
    this.resourceBundleFactory = processingContext.getResourceBundleFactory();
    this.dataSchema = new DefaultDataSchema();
    this.dataFactory = new CompoundDataFactory();
  }

  public GenericExpressionRuntime( final ExpressionRuntime runtime ) {
    this( new StaticDataRow( runtime.getDataRow() ), runtime.getData(), runtime.getCurrentRow(), runtime
        .getProcessingContext() );
  }

  public DataFactory getDataFactory() {
    return dataFactory;
  }

  public DataSchema getDataSchema() {
    return dataSchema;
  }

  public DataRow getDataRow() {
    return dataRow;
  }

  public Configuration getConfiguration() {
    return configuration;
  }

  public ResourceBundleFactory getResourceBundleFactory() {
    return resourceBundleFactory;
  }

  /**
   * Access to the tablemodel was granted using report properties, now direct.
   */
  public TableModel getData() {
    return data;
  }

  /**
   * Where are we in the current processing.
   */
  public int getCurrentRow() {
    return currentRow;
  }

  public int getCurrentDataItem() {
    return currentRow;
  }

  /**
   * The output descriptor is a simple string collections consisting of the following components:
   * exportclass/type/subtype
   * <p/>
   * For example, the PDF export would be: pageable/pdf The StreamHTML export would return table/html/stream
   *
   * @return the export descriptor.
   */
  public String getExportDescriptor() {
    return processingContext.getExportDescriptor();
  }

  public ProcessingContext getProcessingContext() {
    return processingContext;
  }

  public int getCurrentGroup() {
    return 0;
  }

  public int getGroupStartRow( final String groupName ) {
    return 0;
  }

  public int getGroupStartRow( final int groupIndex ) {
    return 0;
  }

  public boolean isStructuralComplexReport() {
    return false;
  }

  public boolean isCrosstabActive() {
    return false;
  }

}