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.wizard;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.List;

import java.util.UUID;

import org.apache.commons.lang3.StringUtils;

import org.eclipse.jface.viewers.ISelectionChangedListener;

import org.eclipse.swt.SWT;

import org.eclipse.swt.custom.CLabel;

import org.eclipse.swt.events.SelectionListener;

import org.eclipse.swt.layout.GridData;

import org.eclipse.swt.layout.GridLayout;

import org.eclipse.swt.widgets.Combo;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Control;

import eu.etaxonomy.cdm.api.service.IVocabularyService;

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

import eu.etaxonomy.cdm.persistence.dto.TermVocabularyDto;

import eu.etaxonomy.taxeditor.editor.definedterm.DefinedTermSorter;

import eu.etaxonomy.taxeditor.editor.definedterm.RootElementsOnlyTreeContentProvider;

import eu.etaxonomy.taxeditor.editor.definedterm.TermDtoLabelProvider;

import eu.etaxonomy.taxeditor.l10n.Messages;

import eu.etaxonomy.taxeditor.preference.AbstractGeneralTermPreference;

import eu.etaxonomy.taxeditor.preference.LocalOrDefaultEnum;

import eu.etaxonomy.taxeditor.preference.PreferencesUtil;

import eu.etaxonomy.taxeditor.store.CdmStore;

/**

 * @author k.luther

 * @since 13.09.2019

 */

public class GeneralVocabularyPreferencePage extends AbstractGeneralTermPreference<TermVocabularyDto> implements ISelectionChangedListener, SelectionListener{

    protected List<TermVocabularyDto> getVocabulariesFromPreference() {

        return null;

    }

    @Override

    protected Control createContents(Composite parent) {

        Composite container = new Composite(parent, SWT.NULL);

       // getValues();

        getPreferenceValues();

        if (!isAdminPreference && !allowOverride){

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

            description.setText(Messages.NameDetailsViewConfiguration_description_not_available);

            this.setDefaultButtonActivated(false);

            return parent;

        }

        final GridLayout gridLayout = new GridLayout();

        gridLayout.numColumns = 2;

        container.setLayout(gridLayout);

        parent.setLayout(new GridLayout());

        useLocalOrAdmin = new Combo(parent, SWT.BORDER | SWT.READ_ONLY);

        if (!isAdminPreference){

            useLocalOrAdmin.add(LocalOrDefaultEnum.Default.getLabel(), 0);

            useLocalOrAdmin.add(LocalOrDefaultEnum.Local.getLabel(), 1);

        }else{

            useLocalOrAdmin.add(LocalOrDefaultEnum.AllowOverride.getLabel(), 0);

            useLocalOrAdmin.add(LocalOrDefaultEnum.Database.getLabel(), 1);

        }

        treeComposite = new CheckBoxTreeComposite(container, new RootElementsOnlyTreeContentProvider(), new TermDtoLabelProvider(), SWT.NONE);

        treeComposite.getViewer().setComparator(new DefinedTermSorter());

        treeComposite.setAllowTopLevelSelection(true);

        rememberCheckedValues(getCheckedValuesFromPreferences());

        if (!isAdminPreference){

            if (isOverride){

                useLocalOrAdmin.select(1);

            }else{

                useLocalOrAdmin.select(0);

                treeComposite.setEnabled(false);

            }

        }else{

            if (allowOverride){

                useLocalOrAdmin.select(0);

            }else{

                useLocalOrAdmin.select(1);

            }

        }

        useLocalOrAdmin.addSelectionListener(this);

        GridData data = new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1);

        data.heightHint = 300;

        treeComposite.setLayoutData(data);

        treeComposite.getViewer().addSelectionChangedListener(this);

        return container;

    }

    @Override

    protected void rememberCheckedValues(String checkedValues) {

        initialiseVocabularies();

        treeComposite.getViewer().getTree().deselectAll();

        treeComposite.getViewer().refresh();

        treeComposite.getViewer().setInput(getVocabularies());

        if (checkedValues != null && checkedValues != "") { //$NON-NLS-1$

            String[] listChecked = checkedValues.split(";"); //$NON-NLS-1$

            String[] listCheckedComma = checkedValues.split(","); //$NON-NLS-1$

            List<String> checked = new ArrayList<>();

            if (listChecked != null ){

                checked = Arrays.asList(listChecked);

            }

            if (listCheckedComma != null && checkedValues.contains(",")){ //$NON-NLS-1$

                checked = Arrays.asList(listCheckedComma);

            }

            List<TermVocabularyDto> termsFromStringValues = getTermsFromStringValues(checked);

            treeComposite.setCheckedElements(termsFromStringValues.toArray());

        }else{

            List<TermVocabularyDto> termsFromStringValues = getTermsFromStringValues(new ArrayList<String>());

            treeComposite.setCheckedElements(termsFromStringValues.toArray());

            treeComposite.getViewer().refresh();

            treeComposite.redraw();

        }

    }

    @Override

    protected List<TermVocabularyDto> getTermsFromStringValues(List<String> listValue) {

        List<TermVocabularyDto> vocList = new ArrayList<>();

        List<UUID> uuids = new ArrayList();

        IVocabularyService vocService = CdmStore.getService(IVocabularyService.class);

        for (String s : listValue) {

            if (!StringUtils.isBlank(s)){

                UUID uuid = UUID.fromString(s);

                uuids.add(uuid);

            }

        }

        vocList = vocService.findVocabularyDtoByVocabularyUuids(uuids);

        if (listValue.isEmpty()){

            vocList =vocService.findVocabularyDtoByTermType(type);

        }

        return vocList;

    }

    @Override

    public boolean performOk() {

        if (!isApply()){

            return true;

        }

        Object[] checkedElements = treeComposite.getViewer().getCheckedElements();

        List<UUID> listUIIDChecked = new ArrayList<>();

        for (Object o : checkedElements) {

            if(o instanceof TermVocabularyDto){

                TermVocabularyDto termDto = (TermVocabularyDto) o;

                listUIIDChecked.add(termDto.getUuid());

             }

        }

        String saveCheckedElements = StringUtils.join(listUIIDChecked, ";"); //$NON-NLS-1$

        if (isAdminPreference){

            CdmPreference savePref = CdmPreference.NewTaxEditorInstance(predicate, saveCheckedElements);

            String text = this.useLocalOrAdmin.getText();

            if (text.equals(LocalOrDefaultEnum.Database.getLabel()) ){

                savePref.setAllowOverride(false);

            }else if (text.equals(LocalOrDefaultEnum.AllowOverride.getLabel())){

                savePref.setAllowOverride(true);

            }

            PreferencesUtil.setPreferenceToDB(savePref);

            PreferencesUtil.updateDBPreferences();

        }else{

            PreferencesUtil.setStringValue(predicate.getKey(), saveCheckedElements);

            String text = this.useLocalOrAdmin.getText();

            if (text.equals(LocalOrDefaultEnum.Database.getLabel()) || text.equals(LocalOrDefaultEnum.Default.getLabel())){

                PreferencesUtil.setBooleanValue(PreferencesUtil.createOverridePreferenceString(predicate.getKey()), false);

            }else if (text.equals(LocalOrDefaultEnum.Local.getLabel())){

                PreferencesUtil.setBooleanValue(PreferencesUtil.createOverridePreferenceString(predicate.getKey()), true);

            }

        }

        PreferencesUtil.firePreferencesChanged(this.getClass());

        return true;

    }

    @Override

    protected void performDefaults(){

        if (isAdminPreference){

            rememberCheckedValues("");

            treeComposite.setEnabled(true);

        }else{

            isOverride = false;

            rememberCheckedValues(getCheckedValuesFromPreferences());

            treeComposite.setEnabled(false);

        }

       pref = null;

       useLocalOrAdmin.select(0);

       setApply(true);

       super.performDefaults();

    }

}