EDIT

/**

* Copyright (C) 2019 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.preference;

import java.util.ArrayList;

import java.util.List;

import org.eclipse.swt.SWT;

import org.eclipse.swt.custom.CLabel;

import org.eclipse.swt.events.SelectionAdapter;

import org.eclipse.swt.events.SelectionEvent;

import org.eclipse.swt.events.SelectionListener;

import org.eclipse.swt.widgets.Button;

import org.eclipse.swt.widgets.Combo;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Control;

import eu.etaxonomy.cdm.model.metadata.CdmPreference;

import eu.etaxonomy.cdm.model.metadata.PreferencePredicate;

import eu.etaxonomy.cdm.model.metadata.PublishEnum;

import eu.etaxonomy.taxeditor.l10n.Messages;

import eu.etaxonomy.taxeditor.preference.menu.CdmPreferencePage;

/**

 * @author k.luther

 * @since 08.01.2019

 *

 */

public class PublishFlagLocalPreference extends CdmPreferencePage {

    protected PublishEnum publishBehaviour;

    protected Combo publishFlagBehaviour;

    protected CdmPreference pref = null;

    Button allowOverrideButton;

    protected boolean allowOverride;

    private boolean override = true;

   @Override

   public void init() {

       super.init();

   }

    /**

     * {@inheritDoc}

     */

    @Override

    protected Control createContents(Composite parent) {

        getValues();

        pref = PreferencesUtil.getPreferenceFromDB(PreferencePredicate.DefaultBehaviourForPublishFlag);

        if (pref == null){

            pref = CdmPreference.NewTaxEditorInstance(PreferencePredicate.DefaultBehaviourForPublishFlag, PreferencePredicate.DefaultBehaviourForPublishFlag.getDefaultValue().toString());

        }

        allowOverride = pref.isAllowOverride();

        Composite composite = createComposite(parent);

        if (!allowOverride && !isAdminPreference){

            final CLabel description = new CLabel(composite, SWT.NULL);

            description.setText(Messages.PublishFlagPreference_description_not_allowed);

            description.setLayoutData(createTextGridData());

            return composite;

        }

//        description.setText(Messages.PublishFlagPreference_description);

//        description.setLayoutData(createTextGridData());

//        publishFlagBehaviour = new Combo(composite, SWT.READ_ONLY);

        List<String> enumValues = new ArrayList();

        publishFlagBehaviour = createCombo(composite, PublishEnum.values(), PreferencePredicate.DefaultBehaviourForPublishFlag, Messages.PublishFlagPreference_description, isAdminPreference);

//        publishFlagBehaviour.setFont(parent.getFont());

//        for(PublishEnum display: PublishEnum.values()){

//            if (pref.getValue().equals(display.getKey())){

//                publishFlagBehaviour.add(display.getLabel() + " (Default)");

//            }

//            else

//        }

        publishFlagBehaviour.addSelectionListener(new SelectionListener() {

            @Override

            public void widgetSelected(SelectionEvent e) {

                setApply(true);

                if (!publishFlagBehaviour.getText().startsWith(Messages.Preference_Use_Default)){

                    publishBehaviour = (PublishEnum)publishFlagBehaviour.getData(publishFlagBehaviour.getText());

                }

            }

            @Override

            public void widgetDefaultSelected(SelectionEvent e) {

                // TODO Auto-generated method stub

            }

        });

        if (this.isAdminPreference){

            allowOverrideButton = createAllowOverrideButton(composite);

            allowOverrideButton.setText(Messages.GeneralPreference_override);

            allowOverrideButton.setSelection(allowOverride);

            allowOverrideButton.addSelectionListener(new SelectionAdapter(){

                @Override

                public void widgetSelected(SelectionEvent e) {

                    allowOverride = !allowOverride;

                    setApply(true);

                    }

            });

        }

        int index = 0;

        if(publishBehaviour==null){

            publishFlagBehaviour.select(0);

        }

        else{

            for (String itemLabel : publishFlagBehaviour.getItems()){

                if (itemLabel.startsWith(publishBehaviour.getLabel())){

                    publishFlagBehaviour.select(index);

                    break;

                }

                index++;

            }

        }

        return composite;

    }

    @Override

    public boolean performOk() {

        if (publishBehaviour != null){

            String text = publishFlagBehaviour.getText();

            for (PublishEnum display: PublishEnum.values()){

                if (text.startsWith(display.getLabel())){

                    text = display.getKey();

                    break;

                }

            }

            PreferencesUtil.setStringValue(PreferencePredicate.DefaultBehaviourForPublishFlag.getKey(), text);

            if (pref == null || !pref.getValue().equals(text)){

                PreferencesUtil.setBooleanValue(PreferencesUtil.prefOverrideKey(PreferencePredicate.DefaultBehaviourForPublishFlag.getKey()), true);

            }

        }else{

            PreferencesUtil.setBooleanValue(PreferencesUtil.prefOverrideKey(PreferencePredicate.DefaultBehaviourForPublishFlag.getKey()), false);

        }

        return true;

    }

    @Override

    public void getValues(){

        publishBehaviour = null;

        try{

            String publishString = PreferencesUtil.getStringValue(PreferencePredicate.DefaultBehaviourForPublishFlag.getKey(), true);

            if (publishString != null){

                publishBehaviour = PublishEnum.valueOf(publishString);

            }

        }catch (IllegalArgumentException e){

            publishBehaviour = PublishEnum.InheritFromParent;

        }

        override = PreferencesUtil.getBooleanValue(PreferencesUtil.prefOverrideKey(PreferencePredicate.DefaultBehaviourForPublishFlag.getKey()));

        if (!override){

            publishBehaviour = null;

        }

    }

    @Override

    protected void performDefaults() {

        publishBehaviour = null;

        allowOverride = true;

        int index = 0;

        for (String itemLabel : publishFlagBehaviour.getItems()){

            if (itemLabel.startsWith(Messages.Preference_Use_Default)){

                publishFlagBehaviour.select(index);

                break;

            }

            index++;

        }

        allowOverrideButton.setSelection(allowOverride);

        super.performDefaults();

    }

}