EDIT

/**

* Copyright (C) 2017 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.distributionStatus;

import java.sql.SQLException;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.Collection;

import java.util.List;

import java.util.UUID;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.security.core.GrantedAuthority;

import com.vaadin.data.Item;

import com.vaadin.data.Property;

import com.vaadin.navigator.ViewChangeListener.ViewChangeEvent;

import com.vaadin.spring.annotation.SpringView;

import com.vaadin.ui.AbsoluteLayout;

import com.vaadin.ui.Button;

import com.vaadin.ui.Grid;

import com.vaadin.ui.ListSelect;

import com.vaadin.ui.Notification;

import com.vaadin.ui.Notification.Type;

import com.vaadin.ui.Table;

import com.vaadin.ui.UI;

import com.vaadin.ui.VerticalLayout;

import com.vaadin.ui.Window;

import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;

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

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

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

import eu.etaxonomy.cdm.model.description.DescriptionElementBase;

import eu.etaxonomy.cdm.model.description.PresenceAbsenceTerm;

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

import eu.etaxonomy.cdm.vaadin.component.DetailWindow;

import eu.etaxonomy.cdm.vaadin.component.DistributionToolbar;

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

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

import eu.etaxonomy.cdm.vaadin.security.AccessRestrictedView;

import eu.etaxonomy.cdm.vaadin.security.UserHelper;

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

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

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

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

import eu.etaxonomy.cdm.vaadin.view.AbstractPageView;

/**

 * @author freimeier

 * @since 18.10.2017

 *

 */

@SpringView(name=DistributionTableViewBean.NAME)

public class DistributionTableViewBean

            extends AbstractPageView<DistributionTablePresenter>

            implements IDistributionTableView, AccessRestrictedView {

	private static final long serialVersionUID = 1L;

    public static final String NAME = "distTable";

    @Autowired

    private DistributionToolbar toolbar;

	private Table table;

	private Grid grid;

    private CdmSQLContainer container;

	private AreaAndTaxonSettingsConfigWindow areaAndTaxonConfigWindow;;

	private DistributionStatusSettingsConfigWindow distributionStatusConfigWindow;

	public DistributionTableViewBean() {

		super();

	}

	private AbsoluteLayout initLayout() {

		AbsoluteLayout mainLayout = new AbsoluteLayout();

		mainLayout.setImmediate(false);

		mainLayout.setWidth("100%");

		mainLayout.setHeight("100%");

		setWidth("100.0%");

		setHeight("100.0%");

		//Horizontal Toolbar

		mainLayout.addComponent(toolbar, "top:0.0px;right:0.0px;");

		// table + formatting

		table = new Table(){

			private static final long serialVersionUID = -5148756917468804385L;

			@Override

			protected String formatPropertyValue(Object rowId, Object colId, Property<?> property) {

				String formattedValue = null;

				PresenceAbsenceTerm presenceAbsenceTerm = null;

				Object value = property.getValue();

				if(value instanceof String){

					presenceAbsenceTerm = TermCacher.getInstance().getPresenceAbsenceTerm((String) value);

				}

				if(presenceAbsenceTerm != null){

					Representation representation = presenceAbsenceTerm.getRepresentation(Language.DEFAULT());

					if(representation!=null){

						if(DistributionEditorUtil.isAbbreviatedLabels()){

							formattedValue = representation.getAbbreviatedLabel();

						}

						else{

							formattedValue = representation.getLabel();

						}

					}

					if(formattedValue==null){

						formattedValue = presenceAbsenceTerm.getTitleCache();

					}

					return formattedValue;

				}

				return super.formatPropertyValue(rowId, colId, property);

			}

		};

		table.setImmediate(false);

		table.setWidth("100.0%");

		table.setHeight("100.0%");

        table.setColumnReorderingAllowed(true);

        table.setSortEnabled(false);

        table.setColumnCollapsingAllowed(true);

        table.setSelectable(true);

        table.setPageLength(20);

        table.setFooterVisible(true);

        table.setCacheRate(20);

		table.addItemClickListener(event -> {

            if(!(event.getPropertyId().toString().equalsIgnoreCase(CdmQueryFactory.TAXON_COLUMN))

            		&& !(event.getPropertyId().toString().equalsIgnoreCase(CdmQueryFactory.RANK_COLUMN))){

                final Item item = event.getItem();

                Property<?> itemProperty = item.getItemProperty("uuid");

                UUID uuid = UUID.fromString(itemProperty.getValue().toString());

                final Taxon taxon = CdmBase.deproxy(CdmSpringContextHelper.getTaxonService()

                		.load(uuid,Arrays.asList("descriptions.descriptionElements","name.taxonBases","updatedBy")), Taxon.class);

                final String areaID = (String)event.getPropertyId();

                PresenceAbsenceTerm presenceAbsenceTerm = null;

                Object statusValue = item.getItemProperty(areaID).getValue();

                if(statusValue instanceof String){

                	presenceAbsenceTerm = TermCacher.getInstance().getPresenceAbsenceTerm((String) statusValue);

                }

                //popup window

                final Window popup = new Window("Choose distribution status");

                final ListSelect termSelect = new ListSelect();

                termSelect.setSizeFull();

                termSelect.setContainerDataSource(PresenceAbsenceTermContainer.getInstance());

                termSelect.setNullSelectionAllowed(presenceAbsenceTerm != null);

                if(presenceAbsenceTerm != null){

                	termSelect.setNullSelectionItemId("[no status]");

                }else{

                    logger.debug("No distribution status exists yet for area");

                }

                termSelect.setValue(presenceAbsenceTerm);

                termSelect.addValueChangeListener(valueChangeEvent -> {

//						System.out.println(valueChangeEvent);

						Object distributionStatus = valueChangeEvent.getProperty().getValue();

						getPresenter().updateDistributionField(areaID, distributionStatus, taxon);

						container.refresh();

						popup.close();

				});

                VerticalLayout layout = new VerticalLayout(termSelect);

                popup.setContent(layout);

                popup.setModal(true);

                popup.center();

                UI.getCurrent().addWindow(popup);

            }

        });

		mainLayout.addComponent(table, "top:75px;right:10.0px;left:10.0px;");

		return mainLayout;

	}

    /**

     * {@inheritDoc}

     */

	@Override

	public void enter(ViewChangeEvent event) {

	    update();

	}

    /**

     * {@inheritDoc}

     */

	@Override

	public void update(){

		try {

			container = getPresenter().getSQLContainer();

		} catch (SQLException e) {

			DistributionEditorUtil.showSqlError(e);

			return;

		}

		if(container==null){

			return;

		}

		table.setContainerDataSource(container);

		List<String> columnHeaders = new ArrayList<>(Arrays.asList(table.getColumnHeaders()));

		columnHeaders.remove(CdmQueryFactory.DTYPE_COLUMN);

		columnHeaders.remove(CdmQueryFactory.ID_COLUMN);

		columnHeaders.remove(CdmQueryFactory.UUID_COLUMN);

		columnHeaders.remove(CdmQueryFactory.CLASSIFICATION_COLUMN);

		List<String> columnList = new ArrayList<>(columnHeaders);

		String[] string = new String[columnList.size()];

		table.setVisibleColumns(columnList.toArray());

		table.setColumnHeaders(columnList.toArray(string));

		table.setColumnFooter(CdmQueryFactory.TAXON_COLUMN, "Total amount of Taxa displayed: " + container.size());

	}

	private void createEditClickListener(){

		//details

	    Button detailButton = toolbar.getDetailButton();

		detailButton.setCaption("Taxon Details");

		detailButton.addClickListener(event -> {

				Object selectedItemId = DistributionTableViewBean.this.table.getValue();

//				Object selectedItemId = DistributionTableViewBean.this.grid.getSelectedRow();

				if(selectedItemId!=null){

				    final UUID uuid = UUID.fromString(table.getContainerDataSource().getItem(selectedItemId).getItemProperty("uuid").getValue().toString());

//					final UUID uuid = UUID.fromString(grid.getContainerDataSource().getItem(selectedItemId).getItemProperty("uuid").getValue().toString());

					Taxon taxon = HibernateProxyHelper.deproxy(CdmSpringContextHelper.getTaxonService().load(uuid), Taxon.class);

					List<DescriptionElementBase> listDescriptions = getPresenter().listDescriptionElementsForTaxon(taxon, null);

					DetailWindow detailWindow = new DetailWindow(taxon, listDescriptions);

					Window window = detailWindow.createWindow();

					window.center();

					getUI().addWindow(window);

				}

				else{

					Notification.show("Please select a taxon", Type.HUMANIZED_MESSAGE);

				}

			}

		);

		//area and taxon

		Button areaAndTaxonSettingsButton = toolbar.getDistributionSettingsButton();

		areaAndTaxonSettingsButton.addClickListener(event -> openAreaAndTaxonSettings());

		//distr status

		Button distrStatusButton = toolbar.getSettingsButton();

		distrStatusButton.addClickListener(event -> openStatusSettings());

	}

    /**

     * {@inheritDoc}

     */

	@Override

	public void openStatusSettings() {

        if(distributionStatusConfigWindow==null){

            distributionStatusConfigWindow = new DistributionStatusSettingsConfigWindow(this);

        }

        Window window  = distributionStatusConfigWindow.createWindow("Status");

        UI.getCurrent().addWindow(window);

	}

    /**

     * {@inheritDoc}

     */

	@Override

	public void openAreaAndTaxonSettings() {

		if(areaAndTaxonConfigWindow==null){

			areaAndTaxonConfigWindow = new AreaAndTaxonSettingsConfigWindow(this);

		}

        Window window  = areaAndTaxonConfigWindow.createWindow("Areas and Taxa");

        UI.getCurrent().addWindow(window);

	}

    /**

     * {@inheritDoc}

     */

	@Override

	public boolean allowAnonymousAccess() {

		// TODO Auto-generated method stub

		return false;

	}

    /**

     * {@inheritDoc}

     */

	@Override

	public Collection<Collection<GrantedAuthority>> allowedGrantedAuthorities() {

		// TODO Auto-generated method stub

		return null;

	}

    /**

     * {@inheritDoc}

     */

	@Override

	protected String getHeaderText() {

		// TODO Auto-generated method stub

		return null;

	}

    /**

     * {@inheritDoc}

     */

	@Override

	protected String getSubHeaderText() {

		// TODO Auto-generated method stub

		return null;

	}

    /**

     * {@inheritDoc}

     */

	@Override

	protected void initContent() {

	    /*

	     * This method is called twice. One time before and one time after login.

	     * Initializing the layout and click listeners twice is unnecessary and produces

	     * strange behavior (e.g. one click on settings-button opens settings-window several times),

	     * so we check for user authentication first.

	     */

	    if(UserHelper.fromSession().userIsAutheticated() && !UserHelper.fromSession().userIsAnnonymous()) {

	        AbsoluteLayout mainLayout = initLayout();

    		setCompositionRoot(mainLayout);

    		createEditClickListener();

	    }

	}

}