/*
 * 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) 2001 - 2013 Object Refinery Ltd, Pentaho Corporation and Contributors..  All rights reserved.
 */

package org.pentaho.reporting.engine.classic.core.states.datarow;

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.function.ExpressionRuntime;
import org.pentaho.reporting.engine.classic.core.function.ProcessingContext;
import org.pentaho.reporting.engine.classic.core.states.GroupingState;
import org.pentaho.reporting.engine.classic.core.states.ReportState;
import org.pentaho.reporting.engine.classic.core.wizard.DataSchema;
import org.pentaho.reporting.libraries.base.config.Configuration;

import javax.swing.table.TableModel;

/**
 * This is a internal class that provides a expression-runtime for internal purposes. This class can change without
 * notice and may even be deleted or refactored at any time. Depend on it outside of the report-core project and be
 * doomed.
 *
 * @author Thomas Morgner
 */
public class InlineDataRowRuntime implements ExpressionRuntime {
  private ReportState state;
  private GroupingState groupingState;

  public InlineDataRowRuntime() {
  }

  public ReportState getState() {
    return state;
  }

  public void setState( final ReportState state ) {
    this.state = state;
    this.groupingState = null;
  }

  public DataSchema getDataSchema() {
    return state.getFlowController().getDataSchema();
  }

  public DataRow getDataRow() {
    return state.getDataRow();
  }

  public Configuration getConfiguration() {
    return getProcessingContext().getConfiguration();
  }

  public ResourceBundleFactory getResourceBundleFactory() {
    return state.getResourceBundleFactory();
  }

  public DataFactory getDataFactory() {
    return state.getFlowController().getDataFactory();
  }

  /**
   * Access to the tablemodel was granted using report properties, now direct.
   */
  public TableModel getData() {
    final DefaultFlowController flowController = state.getFlowController();
    final MasterDataRow masterRow = flowController.getMasterRow();
    return masterRow.getReportData();
  }

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

  public int getCurrentDataItem() {
    return state.getCurrentDataItem();
  }

  /**
   * 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 getProcessingContext().getExportDescriptor();
  }

  public ProcessingContext getProcessingContext() {
    return state.getFlowController().getReportContext();
  }

  public int getCurrentGroup() {
    if ( groupingState == null ) {
      groupingState = state.createGroupingState();
    }
    return groupingState.getCurrentGroup();
  }

  public int getGroupStartRow( final String groupName ) {
    if ( groupingState == null ) {
      groupingState = state.createGroupingState();
    }
    return groupingState.getGroupStartRow( groupName );
  }

  public int getGroupStartRow( final int groupIndex ) {
    if ( groupingState == null ) {
      groupingState = state.createGroupingState();
    }
    return groupingState.getGroupStartRow( groupIndex );
  }

  public boolean isStructuralComplexReport() {
    return state.isStructuralPreprocessingNeeded();
  }

  public boolean isCrosstabActive() {
    return state.isCrosstabActive();
  }
}