package com.onaro.sanscreen.client.view.task.template.addstoragetohost;

import java.awt.Component;
import java.util.LinkedList;
import java.util.List;

import javax.swing.JComponent;
import javax.swing.JOptionPane;
import javax.swing.ListSelectionModel;

import org.apache.commons.lang3.StringUtils;

import com.onaro.commons.swing.ListObjectChooser;
import com.onaro.commons.swing.SplitObjectChooser;
import com.onaro.commons.swing.table.OnaroColumn;
import com.onaro.sanscreen.client.view.task.Inventory;
import com.onaro.sanscreen.task.interfaces.data.inventory.Device;
import com.onaro.sanscreen.task.interfaces.data.inventory.Port;
import com.onaro.sanscreen.task.interfaces.data.inventory.Volume;
import com.onaro.util.jfc.OptionPane;

public class InventoryObjectChooser {
	
	private InventoryObjectChooser()
	{
		//do nothing
	}

	/**
	 * 
	 * @return The selected volumes, or <code>null</code> if cancelled.
	 */
	public static List<Volume> showVolumesChooser(Component parent, List<Volume> unselectedVolumes, List<Volume> selectedVolumes)
	{
		SplitObjectChooser<Volume> chooser = new SplitObjectChooser<Volume>(Volume.class);
		
		String title = Messages.INSTANCE.getChooseVolumesTitle(); 
		
		String leftLabel = Messages.INSTANCE.getVolumeLabel(); 
		String rightLabel = Messages.INSTANCE.getSelectedVolumesLable(); 
		
		chooser.setTitleTexts(leftLabel, rightLabel);
		
		chooser.addPropertyColumn(Volume.class, "name", Messages.INSTANCE.getNameColumnName()); //$NON-NLS-1$ 
		chooser.addPropertyColumn(Volume.class, "volumeMaskingStatus", Messages.INSTANCE.getMaskedColumnName()); //$NON-NLS-1$ 
		chooser.addPropertyColumn(Volume.class, "capacity", Messages.INSTANCE.getCapacityColumnName()); //$NON-NLS-1$ 
		
		chooser.setObjects(unselectedVolumes, selectedVolumes);
		
		chooser.sortColumns(1, 0);
		
		boolean ok = showDialog(parent, chooser, title);
		
		if (!ok) return null;
		
		return new LinkedList<Volume>(chooser.getRightObjects());
	}
	
	/**
	 * 
	 * @return The selected applications, or <code>null</code> if cancelled.
	 */
	public static List<String> showApplicationsChooser(Component parent, List<String> unselectedApplications, List<String> selectedApplications)
	{
		SplitObjectChooser<String> chooser = new SplitObjectChooser<String>(String.class);
		
		String title = Messages.INSTANCE.getChooseApplicationsTitle(); 
		
		String leftLabel = Messages.INSTANCE.getApplicationsLable(); 
		String rightLabel = Messages.INSTANCE.getSelectedApplicationsLabel(); 
		
		chooser.setTitleTexts(leftLabel, rightLabel);
		
		chooser.addIdentityColumn(Messages.INSTANCE.getNameColumnName()); 
		
		chooser.setObjects(unselectedApplications, selectedApplications);
		
		chooser.sortColumns(0);
		
		boolean ok = showDialog(parent, chooser, title);
		
		if (!ok) return null;
		
		return new LinkedList<String>(chooser.getRightObjects());
	}
	
	/**
	 * 
	 * @return The selected host, or <code>null</code> if cancelled.
	 */
	public static Device showHostChooser(Component parent, Inventory inventory, List<Device> hosts, Device selectedHost){
		ListObjectChooser<Device> chooser = new ListObjectChooser<Device>();
		chooser.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
		chooser.enableBorder(true, Messages.INSTANCE.getHostTitleBorderText());
		
		chooser.addPropertyColumn(Device.class, "alias", Messages.INSTANCE.getNameColumnName()); //$NON-NLS-1$ 
		chooser.addPropertyColumn(Device.class, "ip", Messages.INSTANCE.getIPColumnName()); //$NON-NLS-1$ 
		chooser.addColumn(new PortCountColumn(inventory));
		
		chooser.setObjects(hosts);
		chooser.setSelectedObject(selectedHost);		
		chooser.sortColumn(0, true);

        final OptionPane pane = new OptionPane(Messages.INSTANCE.getChooseHostTitle(), JOptionPane.OK_CANCEL_OPTION);
        pane.prepare(parent, chooser, true);
        
        // By adding a Property Change Listener the "chooser" (table) can send an event to the pane
        // This allows the user to select a row by just double click the row, without the need to 
        // press the OK button.
        chooser.addPropertyChangeListener(pane);
        pane.show();

        // If there is no object selected then a NULL value is returned.
		return chooser.getSelectedObject();
	}

	/**
	 * 
	 * @return The selected port, or <code>null</code> if cancelled.
	 */
	public static Port showPortChooser(Component parent, final Inventory inventory, List<Port> ports, Port selectedPort) {

		ListObjectChooser<Port> chooser = new ListObjectChooser<Port>();
		chooser.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
		
		chooser.addPropertyColumn(Port.class, "wwn", Messages.INSTANCE.getWWNColumnName()); //$NON-NLS-1$ 
		chooser.addPropertyColumn(Port.class, "name", Messages.INSTANCE.getNameColumnName()); //$NON-NLS-1$ 
		
		OnaroColumn<Port> deviceColumn = new OnaroColumn<Port>("device", String.class, Messages.INSTANCE.getDeviceColumnName()) //$NON-NLS-1$
		{
			private static final long serialVersionUID = 1L;

			public Object getValue(Port port) {
				
				Long deviceId = port.getRootId();
				
				Device device = Utils.getDevice(inventory, deviceId);
				
				if (device == null) return StringUtils.EMPTY;
				
				return Utils.getDeviceSummary(device);
			}
		};
		
		chooser.addColumn(deviceColumn);

		OnaroColumn<Port> connectedToColumn = new OnaroColumn<Port>("connectedTo", String.class, Messages.INSTANCE.getConnectedToColumnName()) //$NON-NLS-1$
		{
			private static final long serialVersionUID = 1L;

			public Object getValue(Port port) {
				Long connectedPortId = port.getConnectedPortId();

				String connectedToText = Utils.getConnectedToSummary(inventory, connectedPortId);

				return connectedToText;
			}
			
		};
		
		chooser.addColumn(connectedToColumn);
		
		chooser.setObjects(ports);
		chooser.setSelectedObject(selectedPort);
		
		chooser.sortColumn(0, true);
		
		String title = Messages.INSTANCE.getChoosePortTitle(); 

		boolean ok = showDialog(parent, chooser, title);
		
		if (!ok) return null;
		
		return chooser.getSelectedObject();
	}

	/**
	 * 
	 * @return The selected storage, or <code>null</code> if cancelled.
	 */
	public static Device showStorageChooser(Component parent, Inventory inventory, List<Device> storages, Device selectedStorage) {
		ListObjectChooser<Device> chooser = new ListObjectChooser<Device>();
		chooser.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
		chooser.enableBorder(true, Messages.INSTANCE.getStorageTitleBorderText());
		
		chooser.addPropertyColumn(Device.class, "alias", Messages.INSTANCE.getNameColumnName()); //$NON-NLS-1$ 
		chooser.addPropertyColumn(Device.class, "ip", Messages.INSTANCE.getIPColumnName()); //$NON-NLS-1$ 
		chooser.addColumn(new PortCountColumn(inventory));

		chooser.setObjects(storages);
		chooser.setSelectedObject(selectedStorage);
		
		chooser.sortColumn(0, true);
		
        final OptionPane pane = new OptionPane(Messages.INSTANCE.getChooseStorageTite(), JOptionPane.OK_CANCEL_OPTION);
        pane.prepare(parent, chooser, true);
        
        // By adding a Property Change Listener the "chooser" (table) can send an event to the pane
        // This allows the user to select a row by just double click the row, without the need to 
        // press the OK button.
        chooser.addPropertyChangeListener(pane);
        pane.show();

        // If there is no object selected then a NULL value is returned.
		return chooser.getSelectedObject();
	}
	
	private static boolean showDialog(Component parent, JComponent component, String title){ 
		return OptionPane.showDialog(parent, component, title, null, true);
	}
}

class PortCountColumn extends OnaroColumn<Device> {
	private static final long serialVersionUID = 1L;
	private final Inventory inventory;

	public PortCountColumn(Inventory inventory) {
		super("portCount", Integer.class, Messages.INSTANCE.getPortCountColumnName()); //$NON-NLS-1$

		if (inventory == null) throw new IllegalArgumentException();

		this.inventory = inventory;
	}

	public Integer getValue(Device device) {

		int portCount = Utils.getAllPorts(inventory, device).size();

		return portCount;
	}

}