EDIT

// $Id$

/**

* Copyright (C) 2015 EDIT

* European Distributed Institute of Taxonomy

* http://www.e-taxonomy.eu

*

* The contents of this file are subject to the Mozilla Public License Version 1.1

* See LICENSE.TXT at the top of this package for the full license terms.

*/

package eu.etaxonomy.cdm.vaadin.view.dbstatus;

import java.sql.SQLException;

import java.util.Set;

import com.vaadin.data.Property;

import com.vaadin.data.Property.ValueChangeEvent;

import com.vaadin.data.Property.ValueChangeListener;

import com.vaadin.data.util.sqlcontainer.RowId;

import com.vaadin.server.VaadinSession;

import com.vaadin.ui.AbstractLayout;

import com.vaadin.ui.Alignment;

import com.vaadin.ui.Button.ClickEvent;

import com.vaadin.ui.Button.ClickListener;

import com.vaadin.ui.ComboBox;

import com.vaadin.ui.HorizontalLayout;

import com.vaadin.ui.ListSelect;

import com.vaadin.ui.Notification;

import com.vaadin.ui.Table.ColumnHeaderMode;

import com.vaadin.ui.TreeTable;

import com.vaadin.ui.VerticalLayout;

import eu.etaxonomy.cdm.model.common.TermVocabulary;

import eu.etaxonomy.cdm.model.location.NamedArea;

import eu.etaxonomy.cdm.model.taxon.TaxonNode;

import eu.etaxonomy.cdm.vaadin.container.NamedAreaContainer;

import eu.etaxonomy.cdm.vaadin.container.TaxonNodeContainer;

import eu.etaxonomy.cdm.vaadin.container.TaxonTreeContainer;

import eu.etaxonomy.cdm.vaadin.util.CdmSpringContextHelper;

import eu.etaxonomy.cdm.vaadin.util.DistributionEditorUtil;

/**

 *

 * @author pplitzner

 *

 */

public class DistributionSettingsConfigWindow extends AbstractSettingsDialogWindow implements ValueChangeListener, ClickListener{

	private static final long serialVersionUID = 1439411115014088780L;

	private ComboBox classificationBox;

    private ComboBox distAreaBox;

    private ListSelect namedAreaList;

    private TreeTable taxonTree;

    /**

     * The constructor should first build the main layout, set the

     * composition root and then do any custom initialization.

     *

     * The constructor will not be automatically regenerated by the

     * visual editor.

     * @param distributionTableView

     */

    public DistributionSettingsConfigWindow(DistributionTableView distributionTableView) {

    	super();

    }

    protected void init() {

    	//init classification and taxon selection

        TaxonNode chosenTaxonNode = presenter.getChosenTaxonNode();

        classificationBox.setContainerDataSource(new TaxonNodeContainer(null));

        Object classificationSelection = null;

		if(classificationBox.getItemIds().size()==1){

			//only one classification exists

		    classificationSelection = classificationBox.getItemIds().iterator().next();

		}

		else if(chosenTaxonNode!=null){

			//get the classification from the selected taxon node

			classificationSelection = chosenTaxonNode.getClassification().getRootNode();

		}

        if(classificationSelection!=null){

        	classificationBox.setValue(classificationSelection);

        	try {

                taxonTree.setContainerDataSource(new TaxonTreeContainer((TaxonNode) classificationSelection));

                taxonTree.setVisibleColumns("Name");

            } catch (SQLException e) {

                // TODO Auto-generated catch block

                e.printStackTrace();

            }

        	if(chosenTaxonNode!=null){

    			taxonTree.select(new RowId(chosenTaxonNode.getId()));

        	}

        }

        classificationBox.addValueChangeListener(this);

        TermVocabulary<NamedArea> chosenArea = presenter.getChosenArea();

        distAreaBox.setContainerDataSource(presenter.getDistributionContainer());

        distAreaBox.setValue(chosenArea);

        distAreaBox.addValueChangeListener(this);

        if(chosenArea!=null){

        	NamedAreaContainer container = new NamedAreaContainer(chosenArea);

        	namedAreaList.setContainerDataSource(container);

        }

        Object selectedAreas = VaadinSession.getCurrent().getAttribute(DistributionEditorUtil.SATTR_SELECTED_AREAS);

        namedAreaList.setValue(selectedAreas);

        okButton.addClickListener(this);

        cancelButton.addClickListener(this);

    }

    protected AbstractLayout buildMainLayout() {

        mainLayout = new VerticalLayout();

        mainLayout.setSizeFull();

    	HorizontalLayout leftAndRightContainer = new HorizontalLayout();

        leftAndRightContainer.setImmediate(false);

        leftAndRightContainer.setSizeFull();

        leftAndRightContainer.setMargin(true);

        leftAndRightContainer.setSpacing(true);

        VerticalLayout leftContainer = new VerticalLayout();

        leftContainer.setImmediate(false);

        leftContainer.setSpacing(true);

        leftContainer.setSizeFull();

        VerticalLayout rightContainer = new VerticalLayout();

        rightContainer.setImmediate(false);

        rightContainer.setSpacing(true);

        rightContainer.setSizeFull();

        //classification and term

        classificationBox = new ComboBox("Classification");

        classificationBox.setItemCaptionPropertyId(TaxonNodeContainer.LABEL);

        classificationBox.setInputPrompt("Please select a classification...");

        classificationBox.setImmediate(true);

        classificationBox.setNewItemsAllowed(false);

        classificationBox.setNullSelectionAllowed(false);

        classificationBox.setSizeFull();

        classificationBox.setWidth("100%");

        //distribution area box

        distAreaBox = new ComboBox("Distribution Area:");

        distAreaBox.setInputPrompt("Please select a distribution area...");

        distAreaBox.setImmediate(true);

        distAreaBox.setNullSelectionAllowed(false);

        distAreaBox.setNewItemsAllowed(false);

        distAreaBox.setSizeFull();

        distAreaBox.setWidth("100%");

        // named areas

        namedAreaList = new ListSelect();

        namedAreaList.setCaption("Areas");

        namedAreaList.setSizeFull();

        namedAreaList.setMultiSelect(true);

        //taxonomy

        taxonTree = new TreeTable("Taxonomy");

        taxonTree.setSelectable(true);

        taxonTree.setSizeFull();

        taxonTree.setImmediate(true);

        taxonTree.setCacheRate(20);

        taxonTree.setColumnHeaderMode(ColumnHeaderMode.HIDDEN);

        leftContainer.addComponent(distAreaBox);

        leftContainer.addComponent(namedAreaList);

        leftContainer.setExpandRatio(distAreaBox, 0.1f);

        leftContainer.setExpandRatio(namedAreaList, 0.9f);

        leftContainer.setSizeFull();

        rightContainer.addComponent(classificationBox);

        rightContainer.addComponent(taxonTree);

        rightContainer.setExpandRatio(classificationBox, 0.1f);

        rightContainer.setExpandRatio(taxonTree, 0.9f);

        leftAndRightContainer.addComponent(leftContainer);

        leftAndRightContainer.addComponent(rightContainer);

        //button toolbar

        HorizontalLayout buttonToolBar = createOkCancelButtons();

        mainLayout.addComponent(leftAndRightContainer);

        mainLayout.addComponent(buttonToolBar);

        mainLayout.setExpandRatio(leftAndRightContainer, 0.9f);

        mainLayout.setExpandRatio(buttonToolBar, 0.1f);

        mainLayout.setComponentAlignment(buttonToolBar, Alignment.BOTTOM_RIGHT);

        return leftAndRightContainer;

    }

	@Override

	public void valueChange(ValueChangeEvent event) {

		Property property = event.getProperty();

		if(property==classificationBox){

			TaxonNode parentNode = (TaxonNode) event.getProperty().getValue();

			if(parentNode!=null){

			    try {

                    taxonTree.setContainerDataSource(new TaxonTreeContainer(parentNode));

                    taxonTree.setVisibleColumns("Name");

                } catch (SQLException e) {

                    // TODO Auto-generated catch block

                    e.printStackTrace();

                }

			}

			else{

				taxonTree.setContainerDataSource(null);

			}

		}

		else if(property==distAreaBox){

			TermVocabulary<NamedArea> vocabulary = (TermVocabulary<NamedArea>) event.getProperty().getValue();

			NamedAreaContainer container = new NamedAreaContainer(vocabulary);

			namedAreaList.setContainerDataSource(container);

		}

	}

	@Override

	public void buttonClick(ClickEvent event) {

		Object source = event.getSource();

		if(source==okButton){

			TaxonNode taxonNode = null;

			TermVocabulary<NamedArea> term = null;

			//TODO use field converter

			if(taxonTree.getValue()!=null){

			    taxonNode = CdmSpringContextHelper.getTaxonNodeService().find((Integer)((RowId) taxonTree.getValue()).getId()[0]);

			}

			if(taxonNode==null){

				taxonNode = (TaxonNode) classificationBox.getValue();

			}

			term = (TermVocabulary<NamedArea>) distAreaBox.getValue();

			Set<NamedArea> selectedAreas = (Set<NamedArea>) namedAreaList.getValue();

			if(taxonNode==null){

				Notification.show("Please choose a classification and/or taxon", Notification.Type.HUMANIZED_MESSAGE);

				return;

			}

			if(term==null){

				Notification.show("Please choose a distribution area", Notification.Type.HUMANIZED_MESSAGE);

				return;

			}

			DistributionEditorUtil.openDistributionView(taxonNode, term, selectedAreas);

			window.close();

		}

		else if(source==cancelButton){

			window.close();

		}

	}

}