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.component;

import java.util.Arrays;

import java.util.UUID;

import org.json.JSONException;

import com.vaadin.annotations.AutoGenerated;

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.CustomComponent;

import com.vaadin.ui.HorizontalLayout;

import com.vaadin.ui.Notification;

import com.vaadin.ui.Notification.Type;

import com.vaadin.ui.VerticalLayout;

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

import eu.etaxonomy.cdm.vaadin.jscomponent.D3ConceptRelationshipTree;

import eu.etaxonomy.cdm.vaadin.jscomponent.D3ConceptRelationshipTree.Direction;

import eu.etaxonomy.cdm.vaadin.presenter.ConceptRelationshipPresenter;

import eu.etaxonomy.cdm.vaadin.session.BasicEvent;

import eu.etaxonomy.cdm.vaadin.session.CdmChangeEvent;

import eu.etaxonomy.cdm.vaadin.session.CdmChangeEvent.Action;

import eu.etaxonomy.cdm.vaadin.session.IBasicEventListener;

import eu.etaxonomy.cdm.vaadin.session.ICdmChangeListener;

import eu.etaxonomy.cdm.vaadin.session.ISelectionListener;

import eu.etaxonomy.cdm.vaadin.session.SelectionEvent;

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

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

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

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

/**

 * @author cmathew

 * @date 9 Apr 2015

 *

 */

public class ConceptRelationshipComposite extends CustomComponent implements ISelectionListener, ICdmChangeListener, IBasicEventListener {

    /*- VaadinEditorProperties={"grid":"RegularGrid,20","showGrid":true,"snapToGrid":true,"snapToObject":true,"movingGuides":false,"snappingDistance":10} */

    @AutoGenerated

    private VerticalLayout mainLayout;

    @AutoGenerated

    private D3ConceptRelationshipTree d3ConceptRelationShipTree;

    @AutoGenerated

    private HorizontalLayout updateHorizontalLayout;

    @AutoGenerated

    private Button deleteButton;

    @AutoGenerated

    private Button editButton;

    @AutoGenerated

    private Button newButton;

    private final IConceptRelationshipComponentListener listener;

    private IdUuidName fromTaxonIun;

    private UUID selectedTaxonRelUuid;

    private ConceptRelationshipView view;

    public static final String CREATE_NEW_CR_TITLE = "Create New Concept Relationship";

    public static final String EDIT_CR_TITLE = "Edit Concept Relationship";

    public static final String DELETE_CR_TITLE = "Delete Concept Relationship";

    public static final String UPDATE_START_ID = "cr-update-start";

    public static final String UPDATE_END_ID = "cr-update-end";

    /**

     * 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.

     */

    public ConceptRelationshipComposite() {

        buildMainLayout();

        setCompositionRoot(mainLayout);

        CdmVaadinSessionUtilities.getCurrentSelectionService().register(this);

        CdmVaadinSessionUtilities.getCurrentCdmDataChangeService().register(this);

        CdmVaadinSessionUtilities.getCurrentBasicEventService().register(this);

        listener = new ConceptRelationshipPresenter(d3ConceptRelationShipTree);

        addUIListeners();

        init();

    }

    public void setView(ConceptRelationshipView view) {

        this.view = view;

    }

    private void init() {

        enableControls(false);

        initD3ConceptRelationShipTree();

    }

    private void initD3ConceptRelationShipTree() {

        d3ConceptRelationShipTree.setImmediate(true);

        d3ConceptRelationShipTree.setConceptRelComposite(this);

    }

    private void addUIListeners() {

        addNewButtonListener();

        addEditButtonListener();

        addDeleteButtonListener();

    }

    private void addNewButtonListener() {

        newButton.addClickListener(new ClickListener() {

            @Override

            public void buttonClick(ClickEvent event) {

               EditConceptRelationshipComposite.showInDialog(CREATE_NEW_CR_TITLE,

                       fromTaxonIun,

                       null,

                       null,

                       Action.Create,

                       view.getDirection());

               setSelectedTaxonRelUuid(null);

            }

        });

    }

    private void addEditButtonListener() {

        editButton.addClickListener(new ClickListener() {

            @Override

            public void buttonClick(ClickEvent event) {

                EditConceptRelationshipComposite.showInDialog(EDIT_CR_TITLE,

                        fromTaxonIun,

                        selectedTaxonRelUuid,

                        Action.Update,

                        view.getDirection());

                setSelectedTaxonRelUuid(null);

            }

        });

    }

    private void addDeleteButtonListener() {

        deleteButton.addClickListener(new ClickListener() {

            @Override

            public void buttonClick(ClickEvent event) {

                EditConceptRelationshipComposite.showInDialog(DELETE_CR_TITLE,

                        fromTaxonIun,

                        selectedTaxonRelUuid,

                        Action.Delete,

                        view.getDirection());

                setSelectedTaxonRelUuid(null);

            }

        });

    }

    private void refreshRelationshipView(Direction direction) {

        if(fromTaxonIun != null) {

            try {

                listener.refreshRelationshipView(fromTaxonIun, direction);

            } catch (JSONException e) {

                Notification.show("Error generating concept relation JSON",  e.getMessage(), Type.WARNING_MESSAGE);

            }

        }

    }

    public void setSelectedTaxonRelUuid(UUID selectedTaxonRelUuid) {

        this.selectedTaxonRelUuid = selectedTaxonRelUuid;

        updateControls();

    }

    private void enableControls(boolean enabled) {

        CdmVaadinUtilities.setEnabled(this, enabled, Arrays.asList(d3ConceptRelationShipTree));

    }

    private void updateControls() {

        enableControls(false);

        if(fromTaxonIun != null) {

            newButton.setEnabled(true);

        }

        if(selectedTaxonRelUuid != null) {

            editButton.setEnabled(true);

            deleteButton.setEnabled(true);

        }

    }

    /* (non-Javadoc)

     * @see eu.etaxonomy.cdm.vaadin.session.ISelectionListener#onSelect(eu.etaxonomy.cdm.vaadin.session.SelectionEvent)

     */

    @Override

    public void onSelect(SelectionEvent event) {

        if(event.getSourceType().equals(StatusComposite.class)) {

            fromTaxonIun = (IdUuidName)event.getSelectedObjects().get(0);

            if(fromTaxonIun != null) {

                view.setPrimaryStatusCompositeUuid((StatusComposite)event.getSource());

                refreshRelationshipView(view.getDirection());

                setSelectedTaxonRelUuid(null);

            } else {

                listener.clearRelationshipView();

            }

            updateControls();

        }

    }

    /* (non-Javadoc)

     * @see eu.etaxonomy.cdm.vaadin.session.ICdmChangeListener#onCreate(eu.etaxonomy.cdm.vaadin.session.CdmChangeEvent)

     */

    @Override

    public void onCreate(CdmChangeEvent event) {

        if(event.getSourceType().equals(EditConceptRelationshipComposite.class)) {

            setSelectedTaxonRelUuid(null);

            refreshRelationshipView(view.getDirection());

        }

    }

    /* (non-Javadoc)

     * @see eu.etaxonomy.cdm.vaadin.session.ICdmChangeListener#onUpdate(eu.etaxonomy.cdm.vaadin.session.CdmChangeEvent)

     */

    @Override

    public void onUpdate(CdmChangeEvent event) {

        if(event.getSourceType().equals(EditConceptRelationshipComposite.class)) {

            setSelectedTaxonRelUuid(null);

            refreshRelationshipView(view.getDirection());

        }

    }

    /* (non-Javadoc)

     * @see eu.etaxonomy.cdm.vaadin.session.ICdmChangeListener#onDelete(eu.etaxonomy.cdm.vaadin.session.CdmChangeEvent)

     */

    @Override

    public void onDelete(CdmChangeEvent event) {

        if(event.getSourceType().equals(EditConceptRelationshipComposite.class)) {

            setSelectedTaxonRelUuid(null);

            refreshRelationshipView(view.getDirection());

        }

    }

    /* (non-Javadoc)

     * @see eu.etaxonomy.cdm.vaadin.session.IBasicEventListener#onAction(eu.etaxonomy.cdm.vaadin.session.BasicEvent)

     */

    @Override

    public void onAction(BasicEvent event) {

        if(ConceptRelationshipComposite.UPDATE_START_ID.equals(event.getEventId())) {

            enableControls(false);

        }

        if(ConceptRelationshipComposite.UPDATE_END_ID.equals(event.getEventId())) {

            updateControls();

        }

    }

    @AutoGenerated

    private VerticalLayout buildMainLayout() {

        // common part: create layout

        mainLayout = new VerticalLayout();

        mainLayout.setImmediate(false);

        mainLayout.setWidth("100%");

        mainLayout.setHeight("100%");

        mainLayout.setMargin(true);

        mainLayout.setSpacing(true);

        // top-level component properties

        setWidth("100.0%");

        setHeight("100.0%");

        // updateHorizontalLayout

        updateHorizontalLayout = buildUpdateHorizontalLayout();

        mainLayout.addComponent(updateHorizontalLayout);

        mainLayout.setComponentAlignment(updateHorizontalLayout, new Alignment(20));

        // d3ConceptRelationShipTree

        d3ConceptRelationShipTree = new D3ConceptRelationshipTree();

        d3ConceptRelationShipTree.setImmediate(false);

        d3ConceptRelationShipTree.setWidth("100.0%");

        d3ConceptRelationShipTree.setHeight("-1px");

        mainLayout.addComponent(d3ConceptRelationShipTree);

        mainLayout.setExpandRatio(d3ConceptRelationShipTree, 1.0f);

        mainLayout.setComponentAlignment(d3ConceptRelationShipTree, new Alignment(20));

        return mainLayout;

    }

    @AutoGenerated

    private HorizontalLayout buildUpdateHorizontalLayout() {

        // common part: create layout

        updateHorizontalLayout = new HorizontalLayout();

        updateHorizontalLayout.setImmediate(false);

        updateHorizontalLayout.setWidth("-1px");

        updateHorizontalLayout.setHeight("-1px");

        updateHorizontalLayout.setMargin(true);

        updateHorizontalLayout.setSpacing(true);

        // newButton

        newButton = new Button();

        newButton.setCaption("new");

        newButton.setImmediate(true);

        newButton.setWidth("-1px");

        newButton.setHeight("-1px");

        updateHorizontalLayout.addComponent(newButton);

        // editButton

        editButton = new Button();

        editButton.setCaption("edit");

        editButton.setImmediate(true);

        editButton.setWidth("-1px");

        editButton.setHeight("-1px");

        updateHorizontalLayout.addComponent(editButton);

        // deleteButton

        deleteButton = new Button();

        deleteButton.setCaption("delete");

        deleteButton.setImmediate(true);

        deleteButton.setWidth("-1px");

        deleteButton.setHeight("-1px");

        updateHorizontalLayout.addComponent(deleteButton);

        return updateHorizontalLayout;

    }

}