EDIT

/**

* Copyright (C) 2018 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.vaadin.component;

import java.util.Optional;

import com.vaadin.data.fieldgroup.BeanFieldGroup;

import com.vaadin.data.fieldgroup.FieldGroup;

import com.vaadin.ui.Button;

import com.vaadin.ui.Component;

import com.vaadin.ui.CssLayout;

import com.vaadin.ui.GridLayout;

import com.vaadin.ui.themes.ValoTheme;

import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;

import eu.etaxonomy.cdm.model.common.RelationshipBase.Direction;

import eu.etaxonomy.cdm.model.name.NameRelationshipType;

import eu.etaxonomy.cdm.model.name.TaxonName;

import eu.etaxonomy.cdm.model.reference.Reference;

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

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

import eu.etaxonomy.cdm.vaadin.event.ToOneRelatedEntityButtonUpdater;

import eu.etaxonomy.cdm.vaadin.model.name.NameRelationshipDTO;

/**

 * @author a.kohlbecker

 * @since May 3, 2018

 *

 */

public class NameRelationField extends CompositeCustomField<NameRelationshipDTO> {

    /**

     *

     */

    public static final String PRIMARY_STYLE = "v-name-relation-field";

    private static final long serialVersionUID = -7080885013120044655L;

    private CssLayout compositeWrapper = new CssLayout();

    private CssLayout toolBar= new CssLayout();

    private Button removeButton = ButtonFactory.REMOVE_ITEM.createButton();

    private Button newButton = ButtonFactory.ADD_ITEM.createButton();

    private BeanFieldGroup<NameRelationshipDTO> fieldGroup = new BeanFieldGroup<>(NameRelationshipDTO.class);

    ToOneRelatedEntityCombobox<TaxonName> relatedNameComboBox;

    ToOneRelatedEntityCombobox<Reference> citatonComboBox;

    TextFieldNFix citationMicroReferenceField = new TextFieldNFix();

    TextFieldNFix ruleConsideredField = new TextFieldNFix();

    private Direction direction;

    private NameRelationshipType type;

    private GridLayout grid;

    private String nameFieldCaption;

    /**

     * @param string

     */

    public NameRelationField(String caption, String nameFieldCaption, Direction direction, NameRelationshipType type) {

        this.direction = direction;

        this.type = type;

        setCaption(caption);

        setPrimaryStyleName(PRIMARY_STYLE);

        if(nameFieldCaption == null){

            this.nameFieldCaption = "Related name";

        }

        relatedNameComboBox = new ToOneRelatedEntityCombobox<TaxonName>(this.nameFieldCaption, TaxonName.class);

        citatonComboBox = new ToOneRelatedEntityCombobox<Reference>("Reference", Reference.class);

        setValidationVisible(false);

    }

    /**

     * {@inheritDoc}

     */

    @Override

    protected void addDefaultStyles() {

        // TODO Auto-generated method stub

    }

    /**

     * {@inheritDoc}

     */

    @Override

    public Optional<FieldGroup> getFieldGroup() {

        return Optional.of(fieldGroup);

    }

    /**

     * {@inheritDoc}

     */

    @Override

    protected Component initContent() {

        newButton.addClickListener(e -> {

            setValue(new NameRelationshipDTO(direction, type));

            updateToolBarButtonStates();

            });

        removeButton.addClickListener(e -> {

                setValue(null);

                updateToolBarButtonStates();

            });

        relatedNameComboBox.setNestedButtonStateUpdater(new ToOneRelatedEntityButtonUpdater<TaxonName>(relatedNameComboBox));

        citatonComboBox.setNestedButtonStateUpdater(new ToOneRelatedEntityButtonUpdater<Reference>(citatonComboBox, false));

        grid = new GridLayout(2, 3);

        grid.addComponent(relatedNameComboBox, 0, 0, 1, 0);

        relatedNameComboBox.setCaption(nameFieldCaption);

        citatonComboBox.setCaption("Reference");

        citationMicroReferenceField.setCaption("Reference detail");

        ruleConsideredField.setCaption("Rule considered");

        grid.addComponent(citatonComboBox, 0, 1, 0, 1);

        grid.addComponent(citationMicroReferenceField, 1, 1, 1, 1);

        grid.addComponent(ruleConsideredField, 0, 2, 1, 2);

        relatedNameComboBox.setWidth(100, Unit.PERCENTAGE);

        ruleConsideredField.setWidth(100, Unit.PERCENTAGE);

        citatonComboBox.setWidth(100, Unit.PERCENTAGE);

        grid.setColumnExpandRatio(0, 7);

        grid.setWidth(100, Unit.PERCENTAGE);

        toolBar.setStyleName(ValoTheme.LAYOUT_COMPONENT_GROUP + " toolbar");

        toolBar.addComponents(newButton, removeButton);

        compositeWrapper.setStyleName("margin-wrapper");

        compositeWrapper.addComponents(toolBar);

        addSizedComponents(compositeWrapper);

        addStyledComponents(relatedNameComboBox, citationMicroReferenceField, citatonComboBox, ruleConsideredField, newButton, removeButton);

        return compositeWrapper;

    }

    /**

     * {@inheritDoc}

     */

    @Override

    public Class<NameRelationshipDTO> getType() {

        return NameRelationshipDTO.class;

    }

    /**

     * {@inheritDoc}

     */

    @Override

    protected void setInternalValue(NameRelationshipDTO newValue) {

        NameRelationshipDTO oldValue = getValue();

        super.setInternalValue(newValue);

        newValue = HibernateProxyHelper.deproxy(newValue);

        if(newValue != null) {

            compositeWrapper.addComponent(grid);

            fieldGroup.bind(relatedNameComboBox, "otherName");

            fieldGroup.bind(citationMicroReferenceField, "citationMicroReference");

            fieldGroup.bind(citatonComboBox, "citation");

            fieldGroup.bind(ruleConsideredField, "ruleConsidered");

            fieldGroup.setItemDataSource(newValue);

        } else {

            if(oldValue != null){

                compositeWrapper.removeComponent(grid);

                fieldGroup.unbind(relatedNameComboBox);

                fieldGroup.unbind(citationMicroReferenceField);

                fieldGroup.unbind(citatonComboBox);

                fieldGroup.unbind(ruleConsideredField);

                fieldGroup.setItemDataSource(newValue);

            }

        }

        updateToolBarButtonStates();

    }

   private void updateToolBarButtonStates(){

       boolean hasValue = getValue() != null;

       removeButton.setEnabled(hasValue);

       newButton.setEnabled(!hasValue);

   }

    /**

     * @return the relatedNameComboBox

     */

    public ToOneRelatedEntityCombobox<TaxonName> getRelatedNameComboBox() {

        return relatedNameComboBox;

    }

    /**

     * @return the citatonComboBox

     */

    public ToOneRelatedEntityCombobox<Reference> getCitatonComboBox() {

        return citatonComboBox;

    }

    /**

     * {@inheritDoc}

     */

    @Override

    public void setReadOnly(boolean readOnly) {

        super.setReadOnly(readOnly);

        setDeepReadOnly(readOnly, grid, null);

        setDeepReadOnly(readOnly, toolBar, null);

    }

}