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.registration;

import java.util.ArrayList;

import java.util.Collection;

import java.util.List;

import org.springframework.security.core.GrantedAuthority;

import com.vaadin.data.Item;

import com.vaadin.data.util.BeanContainer;

import com.vaadin.data.util.GeneratedPropertyContainer;

import com.vaadin.data.util.PropertyValueGenerator;

import com.vaadin.navigator.View;

import com.vaadin.navigator.ViewChangeListener.ViewChangeEvent;

import com.vaadin.server.Page;

import com.vaadin.shared.ui.grid.HeightMode;

import com.vaadin.spring.annotation.SpringView;

import com.vaadin.ui.Button;

import com.vaadin.ui.Button.ClickEvent;

import com.vaadin.ui.CssLayout;

import com.vaadin.ui.Grid;

import com.vaadin.ui.Grid.Column;

import com.vaadin.ui.Grid.SelectionMode;

import com.vaadin.ui.Notification;

import com.vaadin.ui.renderers.ButtonRenderer;

import com.vaadin.ui.renderers.DateRenderer;

import com.vaadin.ui.renderers.HtmlRenderer;

import eu.etaxonomy.cdm.vaadin.component.registration.RegistrationItem;

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

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

import eu.etaxonomy.cdm.vaadin.util.converter.JodaDateTimeConverter;

import eu.etaxonomy.cdm.vaadin.util.converter.UrlStringConverter;

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

import eu.etaxonomy.vaadin.ui.navigation.NavigationEvent;

/**

 * @author a.kohlbecker

 * @since Mar 2, 2017

 *

 */

@SpringView(name=ListViewBean.NAME)

public class ListViewBean extends AbstractPageView<ListPresenter> implements ListView, View, AccessRestrictedView {

    private static final long serialVersionUID = 3543300933072824713L;

    public static final String NAME = "list";

    public static final String OPTION_ALL = "all";

    public static final String OPTION_IN_PROGRESS = "inprogress";

    private CssLayout listContainer;

    private Grid grid;

    private CssLayout toolBar;

    public ListViewBean() {

        super();

    }

    @Override

    protected void initContent() {

        toolBar = new CssLayout();

        toolBar.setWidth(100, Unit.PERCENTAGE);

        toolBar.addComponent(new Button("As grid", e -> toggleListType(e)));

        getLayout().addComponent(toolBar);

        buildList();

        buildGrid();

        showList();

    }

    @Override

    protected String getHeaderText() {

        return "Registrations";

    }

    @Override

    protected String getSubHeaderText() {

        return "This is the list of all your registrations in progress.";

    }

    private void buildList() {

        listContainer = new CssLayout();

        listContainer.setId("registration-list");

        listContainer.setWidth(100, Unit.PERCENTAGE);

    }

    private void buildGrid() {

        grid = new Grid();

        grid.setSizeFull();

        grid.setEditorEnabled(false);

        grid.setId("registration-list");

        grid.setCellStyleGenerator(cellRef -> cellRef.getPropertyId().toString());

        grid.setSelectionMode(SelectionMode.NONE);

        grid.setHeightMode(HeightMode.CSS);

        // add status as class  attribute to the rows to allow styling with css

        grid.setRowStyleGenerator(rowRef -> {return "status-" + rowRef.getItem().getItemProperty("status").getValue().toString();});

    }

    /**

     * @param e

     * @return

     */

    private Object toggleListType(ClickEvent e) {

        Button button = e.getButton();

        if(button.getCaption().equals("As grid")){

            button.setCaption("As list");

            showGrid();

        } else {

            button.setCaption("As grid");

            showList();

        }

        return null;

    }

    private void showList() {

        if(grid != null){

            getLayout().removeComponent(grid);

        }

        getLayout().addComponent(listContainer);

    }

    private void showGrid() {

        if(listContainer != null){

            getLayout().removeComponent(listContainer);

        }

        getLayout().addComponent(grid);

    }

    /**

     * {@inheritDoc}

     */

    @Override

    public void enter(ViewChangeEvent event) {

        getPresenter().onViewEnter();

    }

    @Override

    public void populate(Collection<RegistrationDTO> registrations) {

        registrations = new ArrayList<RegistrationDTO>(registrations);

        populateGrid(registrations);

        populateList(registrations);

    }

    public void populateGrid(Collection<RegistrationDTO> registrations) {

        BeanContainer<String, RegistrationDTO> registrationItems = new BeanContainer<String, RegistrationDTO>(RegistrationDTO.class);

        registrationItems.setBeanIdProperty("specificIdentifier");

        registrationItems.addAll(registrations);

        grid.setContainerDataSource(buildGeneratedProperties(registrationItems));

        grid.removeAllColumns();

        Column typeColumn = grid.addColumn("registrationType");

        typeColumn.setRenderer(new HtmlRenderer(), new RegistrationTypeConverter());

        typeColumn.setHeaderCaption("");

        Column statusColumn = grid.addColumn("status");

        Column citationColumn = grid.addColumn("citation");

        citationColumn.setHeaderCaption("Publication");

        Column summaryColumn = grid.addColumn("summary");

        Column regidColumn = grid.addColumn("identifier");

        regidColumn.setHeaderCaption("Id");

        regidColumn.setRenderer(new HtmlRenderer(), new UrlStringConverter("http://pyhcobank.org/"));

        Column createdColumn = grid.addColumn("created");

        createdColumn.setRenderer(new DateRenderer(), new JodaDateTimeConverter());

        createdColumn.setHidable(true);

        createdColumn.setHidden(true);

        Column regDateColumn = grid.addColumn("registrationDate");

        // regDateColumn.setHeaderCaption("Date");

        regDateColumn.setRenderer(new DateRenderer(), new JodaDateTimeConverter());

        regDateColumn.setHidable(true);

        regDateColumn.setHidden(true);

        Column buttonColumn = grid.addColumn("operation");

        buttonColumn.setRenderer(new ButtonRenderer(e -> eventBus.publishEvent(new NavigationEvent(

                RegistrationWorkflowViewBean.NAME,

                RegistrationWorkflowViewBean.ACTION_EDIT,

                e.getItemId().toString()

                ))));

        buttonColumn.setSortable(false);

        grid.setFrozenColumnCount(1);

    }

    public void populateList(Collection<RegistrationDTO> registrations) {

        boolean isCurator = UserHelper.userIsRegistrationCurator() || UserHelper.userIsAdmin();

        for(RegistrationDTO regDto : registrations) {

            RegistrationItem item = new RegistrationItem(regDto, this);

            item.getSubmitterLabel().setVisible(isCurator);

            item.setWidth(100, Unit.PERCENTAGE);

            listContainer.addComponent(item);

        }

    }

    @Override

    public void openDetailsPopup(String caption, List<String> messages){

        StringBuffer sb = new StringBuffer();

        sb.append("<div class=\"details-popup-content\">");

        messages.forEach(s -> sb.append(s).append("</br>"));

        sb.append("</div>");

        new Notification(caption, sb.toString(), Notification.Type.HUMANIZED_MESSAGE, true).show(Page.getCurrent());

    }

    /**

     * @param registrationItems

     * @return

     */

    private GeneratedPropertyContainer buildGeneratedProperties(

            BeanContainer<String, RegistrationDTO> registrationItems) {

        GeneratedPropertyContainer gpContainer = new GeneratedPropertyContainer(registrationItems);

        gpContainer.addGeneratedProperty("operation", new PropertyValueGenerator<String>() {

            @Override

            public String getValue(Item item, Object itemId, Object propertyId) {

                return "Open";

            }

            @Override

            public Class<String> getType() {

                return String.class;

            }

          });

        return gpContainer;

    }

    /**

     * {@inheritDoc}

     */

    @Override

    public boolean allowAnonymousAccess() {

        return false;

    }

    /**

     * {@inheritDoc}

     */

    @Override

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

        return null;

    }

}