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.util.Set;

import com.vaadin.data.Container;

import com.vaadin.data.Property;

import com.vaadin.data.Property.ValueChangeEvent;

import com.vaadin.data.Property.ValueChangeListener;

import com.vaadin.server.VaadinSession;

import com.vaadin.ui.AbstractLayout;

import com.vaadin.ui.Alignment;

import com.vaadin.ui.Button;

import com.vaadin.ui.Button.ClickEvent;

import com.vaadin.ui.Button.ClickListener;

import com.vaadin.ui.ComboBox;

import com.vaadin.ui.CustomComponent;

import com.vaadin.ui.HorizontalLayout;

import com.vaadin.ui.Label;

import com.vaadin.ui.ListSelect;

import com.vaadin.ui.Notification;

import com.vaadin.ui.Tree;

import com.vaadin.ui.VerticalLayout;

import com.vaadin.ui.Window;

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.presenter.dbstatus.settings.SettingsPresenter;

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

/**

 * 

 * @author pplitzner

 *

 */

public class DistributionSettingsConfigWindow extends CustomComponent implements ValueChangeListener, ClickListener{

	private static final long serialVersionUID = 1439411115014088780L;

	private ComboBox classificationBox;

    private ComboBox distAreaBox;

    private ListSelect namedAreaList;

    private Tree taxonTree;

    private Label labelNoClassification;

    private Button okButton;

    private Button cancelButton;

    private final SettingsPresenter presenter;

	private Window window;

	private HorizontalLayout mainLayout;

    /**

     * 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) {

        buildMainLayout();

        presenter = new SettingsPresenter();

        init();

    }

    private void init() {

        Container distributionContainer = presenter.getDistributionContainer();

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

        classificationBox.setItemCaptionPropertyId(TaxonNodeContainer.LABEL);

        classificationBox.setContainerDataSource(new TaxonNodeContainer(null));

		classificationBox.setImmediate(true);

        TaxonNode chosenTaxonNode = presenter.getChosenTaxonNode();

		classificationBox.addValueChangeListener(this);

        if(chosenTaxonNode!=null){

        	classificationBox.setValue(chosenTaxonNode.getClassification().getRootNode());

        	taxonTree.setContainerDataSource(new TaxonNodeContainer((TaxonNode) classificationBox.getValue()));

        	taxonTree.setValue(chosenTaxonNode);

        }

        taxonTree.setItemCaptionPropertyId(TaxonNodeContainer.LABEL);

        distAreaBox.setContainerDataSource(distributionContainer);

        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);

    }

    public Window createWindow(){

        window = new Window();

        window.setModal(true);

        window.setWidth("60%");

        window.setHeight("80%");

        window.setCaption("Settings");

        window.setContent(mainLayout);

        return window;

    }

    private AbstractLayout buildMainLayout() {

    	mainLayout = new HorizontalLayout();

        mainLayout.setImmediate(false);

        mainLayout.setSizeFull();

        mainLayout.setMargin(true);

        mainLayout.setSpacing(true);

        VerticalLayout leftContainer = new VerticalLayout();

        leftContainer.setImmediate(false);

        leftContainer.setSizeFull();

        leftContainer.setSpacing(true);

        VerticalLayout rightContainer = new VerticalLayout();

        rightContainer.setImmediate(false);

        rightContainer.setSizeFull();

        rightContainer.setSpacing(true);

        //classification and term

        classificationBox = new ComboBox("Classification");

        classificationBox.setImmediate(true);

        classificationBox.setWidth("100%");

        //distribution area box

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

        distAreaBox.setImmediate(true);

        distAreaBox.setWidth("100%");

        // named areas

        namedAreaList = new ListSelect();

        namedAreaList.setCaption("Areas");

        namedAreaList.setWidth("100%");

        namedAreaList.setMultiSelect(true);

        //taxonomy

        taxonTree = new Tree("Taxonomy");

        taxonTree.setImmediate(false);

        //no classification selected label

        labelNoClassification = new Label(" - Please select a classification - ");

        leftContainer.addComponent(classificationBox);

        leftContainer.addComponent(distAreaBox);

        leftContainer.addComponent(namedAreaList);

        leftContainer.setSizeFull();

        rightContainer.addComponent(taxonTree);

        rightContainer.setExpandRatio(taxonTree, 1);

        rightContainer.addComponent(labelNoClassification);

        rightContainer.setComponentAlignment(labelNoClassification, Alignment.BOTTOM_RIGHT);

        mainLayout.addComponent(leftContainer);

        mainLayout.addComponent(rightContainer);

        //button toolbar

        HorizontalLayout buttonToolBar = new HorizontalLayout();

        // cancelButton

        cancelButton = new Button();

        cancelButton.setCaption("Cancel");

        cancelButton.setImmediate(true);

        buttonToolBar.addComponent(cancelButton);

        // okButton

        okButton = new Button();

        okButton.setCaption("OK");

        okButton.setImmediate(true);

        buttonToolBar.addComponent(okButton);

        mainLayout.addComponent(rightContainer);

        mainLayout.addComponent(buttonToolBar);

        mainLayout.setComponentAlignment(buttonToolBar, Alignment.BOTTOM_RIGHT);

        return mainLayout;

    }

	@Override

	public void valueChange(ValueChangeEvent event) {

		Property property = event.getProperty();

		if(property==classificationBox){

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

			if(parentNode!=null){

				taxonTree.setContainerDataSource(new TaxonNodeContainer(parentNode));

			}

			else{

				taxonTree.setContainerDataSource(null);

			}

			labelNoClassification.setVisible(parentNode==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;

			TermVocabulary<NamedArea> term = null;

			taxonNode = (TaxonNode) taxonTree.getValue();

			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();

		}

	}

}