EDIT

// $Id$

/**

* Copyright (C) 2016 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.taxeditor.ui.translation;

/**

 * @author k.luther

 * @date 22.06.2016

 *

 */

import java.beans.PropertyChangeEvent;

import java.beans.PropertyChangeListener;

import org.apache.commons.lang.StringUtils;

import org.eclipse.jface.wizard.WizardPage;

import org.eclipse.swt.SWT;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Display;

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

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

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

import eu.etaxonomy.taxeditor.preference.PreferencesUtil;

import eu.etaxonomy.taxeditor.store.CdmStore;

import eu.etaxonomy.taxeditor.ui.element.CdmFormFactory;

import eu.etaxonomy.taxeditor.ui.element.ICdmFormElement;

import eu.etaxonomy.taxeditor.ui.element.LayoutConstants;

import eu.etaxonomy.taxeditor.ui.element.MultilanguageTextElement;

import eu.etaxonomy.taxeditor.ui.element.RepresentationElement;

import eu.etaxonomy.taxeditor.ui.element.RootElement;

public class TermTranslationWizardPage extends WizardPage implements PropertyChangeListener{

        private static int TEXT_HEIGHT = 200;

        private final TermBase term;

        MultilanguageTextElement source;

        private final CdmFormFactory formFactory;

        private RepresentationElement text_source;

        private RepresentationElement text_target;

        /**

         * <p>Constructor for TranslationWizardPage.</p>

         *

         * @param multilanguageText a {@link java.util.Map} object.

         */

        public TermTranslationWizardPage(TermBase term) {

            super("TranslationWizardPage");

            //Assert.isNotNull(multilanguageText, "Multilanguage text may not be null");

            setTitle("Add or edit translations.");

            this.term = term;

            formFactory = new CdmFormFactory(Display.getCurrent());

            setPageComplete(false);

        }

        /* (non-Javadoc)

         * @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)

         */

        /** {@inheritDoc} */

        @Override

        public void createControl(Composite parent) {

            Composite control = formFactory.createComposite(parent);

//          control.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_GREEN));

            control.setLayout(LayoutConstants.LAYOUT(2, false));

            Composite leftContainer = formFactory.createComposite(control);

            leftContainer.setLayoutData(LayoutConstants.FILL(1, 4));

            leftContainer.setLayout(LayoutConstants.LAYOUT(2, false));

//          leftContainer.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_BLUE));

            RootElement leftRoot = new RootElement(formFactory, leftContainer);

            Composite rightContainer = formFactory.createComposite(control);

            rightContainer.setLayoutData(LayoutConstants.FILL(1, 4));

            rightContainer.setLayout(LayoutConstants.LAYOUT(2, false));

//          rightContainer.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_RED));

            RootElement rightRoot = new RootElement(formFactory, rightContainer);

            createLeftControls(leftRoot);

            createRightControls(rightRoot);

            // initialize with default language

            setSource(CdmStore.getDefaultLanguage());

            setControl(control);

            setPageComplete(true);

        }

        /**

         * @param defaultLanguage

         */

        private void setSource(Language language) {

           Representation preferredRepresentation =term.getPreferredRepresentation(language);

            if(preferredRepresentation != null){

               text_source.setSelectedRepresentation(preferredRepresentation);

            }

        }

        /**

         *

         * @param element

         */

        private void createLeftControls(ICdmFormElement element){

            Representation preferredRepresentation= term.getPreferredRepresentation(PreferencesUtil.getGlobalLanguage());

            text_source = formFactory.createRepresentationElement(element, preferredRepresentation,term,  TEXT_HEIGHT,  SWT.NULL, true);

            text_source.setTerm(term, true);

        }

        /**

         *

         * @param element

         */

        private void createRightControls(ICdmFormElement element){

            text_target = formFactory.createRepresentationElement(element, null, term, TEXT_HEIGHT, SWT.NULL, false);

        }

        /* (non-Javadoc)

         * @see org.eclipse.jface.dialogs.DialogPage#dispose()

         */

        /** {@inheritDoc} */

        @Override

        public void dispose() {

            super.dispose();

        }

        /**

         * @return

         *

         */

        public Representation getTargetRepresentation() {

            return text_target.getSelectedRepresentation();

        }

        /* (non-Javadoc)

         * @see java.beans.PropertyChangeListener#propertyChange(java.beans.PropertyChangeEvent)

         */

        @Override

        public void propertyChange(PropertyChangeEvent evt) {

            if (evt.getSource() == text_target){

                if (!StringUtils.isBlank(text_target.getSelectedRepresentation().getAbbreviatedLabel()) ||

                        !StringUtils.isBlank(text_target.getSelectedRepresentation().getLabel()) || !StringUtils.isBlank(text_target.getSelectedRepresentation().getText())){

                    setPageComplete(true);

                }

            }

        }

}