EDIT

/**

* Copyright (C) 2007 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.bulkeditor.e4;

import java.io.FileOutputStream;

import java.io.IOException;

import javax.annotation.PostConstruct;

import javax.annotation.PreDestroy;

import javax.inject.Inject;

import org.eclipse.core.runtime.IProgressMonitor;

import org.eclipse.e4.core.contexts.ContextInjectionFactory;

import org.eclipse.e4.core.contexts.IEclipseContext;

import org.eclipse.e4.core.di.annotations.Optional;

import org.eclipse.e4.core.services.events.IEventBroker;

import org.eclipse.e4.ui.di.Focus;

import org.eclipse.e4.ui.di.Persist;

import org.eclipse.e4.ui.di.UIEventTopic;

import org.eclipse.e4.ui.model.application.ui.MDirtyable;

import org.eclipse.e4.ui.model.application.ui.basic.MPart;

import org.eclipse.jface.viewers.IStructuredSelection;

import org.eclipse.jface.viewers.StructuredSelection;

import org.eclipse.swt.SWT;

import org.eclipse.swt.widgets.Composite;

import eu.etaxonomy.cdm.api.conversation.ConversationHolder;

import eu.etaxonomy.cdm.api.conversation.IConversationEnabled;

import eu.etaxonomy.cdm.api.facade.DerivedUnitFacade;

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

import eu.etaxonomy.cdm.model.occurrence.DerivedUnit;

import eu.etaxonomy.cdm.model.occurrence.FieldUnit;

import eu.etaxonomy.cdm.model.taxon.Taxon;

import eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap;

import eu.etaxonomy.taxeditor.bulkeditor.BulkEditorQuery;

import eu.etaxonomy.taxeditor.bulkeditor.input.AbstractBulkEditorInput;

import eu.etaxonomy.taxeditor.editor.ITaxonEditor;

import eu.etaxonomy.taxeditor.event.WorkbenchEventConstants;

import eu.etaxonomy.taxeditor.model.IDerivedUnitFacadePart;

import eu.etaxonomy.taxeditor.model.IDirtyMarkable;

import eu.etaxonomy.taxeditor.model.IPartContentHasDetails;

import eu.etaxonomy.taxeditor.model.IPartContentHasFactualData;

import eu.etaxonomy.taxeditor.model.IPartContentHasMedia;

import eu.etaxonomy.taxeditor.model.IPartContentHasSupplementalData;

import eu.etaxonomy.taxeditor.operation.IPostOperationEnabled;

import eu.etaxonomy.taxeditor.workbench.part.IE4SavablePart;

/**

 *

 * @author pplitzner

 * @since Sep 8, 2017

 *

 */

public class BulkEditorE4 implements IPartContentHasDetails, IConversationEnabled, IPostOperationEnabled,

        IDirtyMarkable, IDerivedUnitFacadePart, IPartContentHasFactualData,

        IPartContentHasSupplementalData, IPartContentHasMedia, IE4SavablePart, ITaxonEditor {

    @Inject

	private MDirtyable dirty;

    private AbstractBulkEditorInput input;

    private ConversationHolder conversation;

    @Inject

    private IEventBroker eventBroker;

    @Inject

    IEclipseContext context;

    @Inject

    private MPart thisPart;

    private BulkEditorQuery lastQuery = null;

    private BulkEditorE4Composite bulkEditorComposite;

    @Inject

    public BulkEditorE4() {

	}

	@SuppressWarnings("unused")

    public void init(AbstractBulkEditorInput<?> input){

	    this.input = input;

	    this.conversation = input.getConversation();

	    thisPart.setLabel(input.getEditorName());

	    bulkEditorComposite.init(input);

	}

	/** {@inheritDoc} */

	@PostConstruct

	public void createPartControl(Composite parent, IEclipseContext context) {

	    bulkEditorComposite = new BulkEditorE4Composite(this, parent, SWT.NONE);

	    ContextInjectionFactory.inject(bulkEditorComposite, context);

	}

	@Override

	@Persist

	public void save(IProgressMonitor monitor) {

	    save(monitor, true);

	}

    public void save(IProgressMonitor monitor, boolean resetMerge) {

        if (!input.getCdmEntitySession().isActive()){

            input.getCdmEntitySession().bind();

        }

        input.saveModel(resetMerge);

        IStructuredSelection selection = getSelection();

        dirty.setDirty(false);

        input.dispose();

        input.bind();

        conversation.commit(true);

        if (lastQuery != null){

            bulkEditorComposite.performSearch(lastQuery, selection);

        }

    }

	@Focus

	public void setFocus() {

        //make sure to bind again if maybe in another view the conversation was unbound

        if(conversation!=null && !conversation.isBound()){

            conversation.bind();

        }

        if(input!=null && input.getCdmEntitySession()!= null) {

            input.getCdmEntitySession().bind();

        }

	    //make sure to bind again if maybe in another view the conversation was unbound

	    eventBroker.post(WorkbenchEventConstants.CURRENT_ACTIVE_EDITOR, this);

	}

	@PreDestroy

	public void dispose() {

	    if(conversation!=null){

	        conversation.unregisterForDataStoreChanges(this);

	        conversation.close();

	    }

	    if(input!=null){

	        input.dispose();

	    }

	    dirty.setDirty(false);

	    //save table settings

	    if(bulkEditorComposite.getNatTableState()!=null){

            try (FileOutputStream tableStateStream =

                    new FileOutputStream(bulkEditorComposite.getStatePropertiesFile())) {

                bulkEditorComposite.getNatTableState().store(tableStateStream, null);

            } catch (IOException ioe) {

                ioe.printStackTrace();

            }

        }

	}

    @Optional

    @Inject

    private void updateAfterSearch(@UIEventTopic(WorkbenchEventConstants.BULK_EDITOR_SEARCH_FINISHED)IStructuredSelection selection){

        if(selection!=null){

            setSelection(selection);

        }

    }

    public void refresh(){

        bulkEditorComposite.refresh();

    }

    public IStructuredSelection getSelection(){

        return bulkEditorComposite.getSelection();

    }

    public void setSelection(IStructuredSelection selection){

        bulkEditorComposite.setSelection(selection);

    }

    public void setDirty(boolean isDirty){

        dirty.setDirty(isDirty);

    }

    public void setDirty(){

        setDirty(true);

    }

    public boolean isDirty() {

        return dirty.isDirty();

    }

    public AbstractBulkEditorInput getEditorInput() {

        return input;

    }

    public void copyDataToClipboard() {

        bulkEditorComposite.copyDataToClipboard();

    }

    @Override

    public void update(CdmDataChangeMap arg0) {

    }

    @Override

    public boolean canAttachMedia() {

        return true;

    }

    @Override

    public void changed(Object element) {

        if(element instanceof DerivedUnitFacade){

            DerivedUnit derivedUnit = ((DerivedUnitFacade) element).innerDerivedUnit();

            if(derivedUnit!=null){

                getEditorInput().addSaveCandidate(derivedUnit);

            }

            FieldUnit fieldUnit = ((DerivedUnitFacade) element).innerFieldUnit();

            if(fieldUnit!=null){

                getEditorInput().addSaveCandidate(fieldUnit);

            }

        }

        else if (element instanceof CdmBase) {

            getEditorInput().addSaveCandidate((CdmBase)element);

            input.replaceInModel((CdmBase) element);

        }

        dirty.setDirty(true);

        setSelection(new StructuredSelection(element));

    }

    @Override

    public void forceDirty() {

        dirty.setDirty(true);

    }

    @Override

    public boolean postOperation(CdmBase objectAffectedByOperation) {

        return false;

    }

    @Override

    public boolean onComplete() {

        return false;

    }

    @Override

    public ConversationHolder getConversationHolder() {

        return conversation;

    }

    public BulkEditorQuery getLastQuery() {

       return lastQuery;

    }

    public void setLastQuery(BulkEditorQuery lastQuery) {

       this.lastQuery = lastQuery;

    }

    @Override

    public Taxon getTaxon() {

        IStructuredSelection selection = getSelection();

        if(selection.size()==1) {

            Object object = selection.iterator().next();

            if(object instanceof Taxon){

                return (Taxon) object;

            }

        }

        return null;

    }

}