/* 
 * Copyright (c) 2008 Stiftung Deutsches Elektronen-Synchrotron, 
 * Member of the Helmholtz Association, (DESY), HAMBURG, GERMANY.
 *
 * THIS SOFTWARE IS PROVIDED UNDER THIS LICENSE ON AN "../AS IS" BASIS. 
 * WITHOUT WARRANTY OF ANY KIND, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED 
 * TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE AND 
 * NON-INFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE 
 * FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR 
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. SHOULD THE SOFTWARE PROVE DEFECTIVE 
 * IN ANY RESPECT, THE USER ASSUMES THE COST OF ANY NECESSARY SERVICING, REPAIR OR 
 * CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. 
 * NO USE OF ANY SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER.
 * DESY HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, 
 * OR MODIFICATIONS.
 * THE FULL LICENSE SPECIFYING FOR THE SOFTWARE THE REDISTRIBUTION, MODIFICATION, 
 * USAGE AND OTHER RIGHTS AND OBLIGATIONS IS INCLUDED WITH THE DISTRIBUTION OF THIS 
 * PROJECT IN THE FILE LICENSE.HTML. IF THE LICENSE IS NOT INCLUDED YOU MAY FIND A COPY 
 * AT HTTP://WWW.DESY.DE/LEGAL/LICENSE.HTM
 */
 package org.csstudio.sds.ui.internal.dynamicswizard;

import java.util.ArrayList;
import java.util.List;

public class InputChannelTableModel {
	private List<InputChannelTableRow> _rowsForInputChannels;
	
	private List<InputChannelTableRow> _rowsForOutputChannels;

	public InputChannelTableModel() {
		_rowsForInputChannels = new ArrayList<InputChannelTableRow>();
		_rowsForOutputChannels = new ArrayList<InputChannelTableRow>();
	}

	public void addRowForInputChannel(InputChannelTableRow row) {
		_rowsForInputChannels.add(row);
	}
	
	public void addRowForOutputChannel(InputChannelTableRow row) {
		_rowsForOutputChannels.add(row);
	}
	
	public void removeRow(InputChannelTableRow row) {
		_rowsForInputChannels.remove(row);
		_rowsForOutputChannels.remove(row);
	}
	
	public void clearInputChannelDescriptions() {
		for(InputChannelTableRow row : _rowsForInputChannels) {
			row.setDescription("");
			row.setDefaultValue("");
		}
	}

	public List<InputChannelTableRow> getAllRows() {
		List<InputChannelTableRow> result = new ArrayList<InputChannelTableRow>();
		result.addAll(_rowsForInputChannels);
		result.addAll(_rowsForOutputChannels);
		return result;
	}

	public void setInputChannelDescription(final int rowIndex, final String description) {
		if(rowIndex >= _rowsForInputChannels.size()) {
			int addCount  = _rowsForInputChannels.size()-rowIndex+1;
			for(int i=0;i<addCount;i++) {
				_rowsForInputChannels.add(new InputChannelTableRow(ParameterType.IN, "", ""));
			}
		}
		InputChannelTableRow row = _rowsForInputChannels.get(rowIndex);
		row.setDescription(description);
	}

	public void setInputChannelValue(final int rowIndex, final String value) {
		assert rowIndex < _rowsForInputChannels.size();
		assert value != null : "value != null";
		
		InputChannelTableRow row = _rowsForInputChannels.get(rowIndex);
		row.setDefaultValue(value);
	}
	
	public List<InputChannelTableRow> getRowsWithContent(ParameterType type) {
		List<InputChannelTableRow> result = new ArrayList<InputChannelTableRow>();
		
		for(InputChannelTableRow row : getAllRows()) {
			String channel = row.getChannel();
			Object value = row.getDefaultValue();
			if (row.getParameterType() == type && 
					((channel!=null && channel.length()>0) || value!=null)) {
				result.add(row);
			}
		}
		
		return result;
	}
}