EDIT

/**

* Copyright (C) 2017 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.cdm.vaadin.component.registration;

import static eu.etaxonomy.cdm.vaadin.component.registration.RegistrationStyles.LABEL_NOWRAP;

import java.util.Collection;

import java.util.EnumSet;

import java.util.Set;

import org.joda.time.DateTime;

import org.joda.time.format.ISODateTimeFormat;

import org.vaadin.spring.events.EventScope;

import com.vaadin.server.ExternalResource;

import com.vaadin.server.FontAwesome;

import com.vaadin.server.Resource;

import com.vaadin.server.UserError;

import com.vaadin.shared.ui.label.ContentMode;

import com.vaadin.ui.Alignment;

import com.vaadin.ui.Button;

import com.vaadin.ui.Button.ClickListener;

import com.vaadin.ui.CssLayout;

import com.vaadin.ui.GridLayout;

import com.vaadin.ui.Label;

import com.vaadin.ui.Link;

import com.vaadin.ui.Panel;

import com.vaadin.ui.themes.ValoTheme;

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

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

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

import eu.etaxonomy.cdm.persistence.hibernate.permission.CRUD;

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

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

import eu.etaxonomy.cdm.vaadin.model.registration.RegistrationWorkingSet;

import eu.etaxonomy.cdm.vaadin.security.PermissionDebugUtils;

import eu.etaxonomy.cdm.vaadin.security.UserHelper;

import eu.etaxonomy.cdm.vaadin.util.formatter.DateTimeFormat;

import eu.etaxonomy.cdm.vaadin.util.formatter.TimePeriodFormatter;

import eu.etaxonomy.cdm.vaadin.view.registration.RegistrationDTO;

import eu.etaxonomy.cdm.vaadin.view.registration.RegistrationTypeConverter;

import eu.etaxonomy.cdm.vaadin.view.registration.RegistrationWorksetViewBean;

import eu.etaxonomy.vaadin.event.EditorActionType;

import eu.etaxonomy.vaadin.mvp.AbstractView;

import eu.etaxonomy.vaadin.ui.navigation.NavigationEvent;

/**

 * @author a.kohlbecker

 * @since Mar 17, 2017

 *

 */

public class RegistrationItem extends GridLayout {

    public static final String VALIDATION_PROBLEMS = "validationProblems";

    public static final String MESSAGES = "messages";

    public static final String BLOCKED_BY = "blockedBy";

    /**

     *

     */

    public static final String STYLE_NAME_BLOCKED = "blocked";

    private static final String LABEL_CAPTION_CREATED = "Created";

    private static final String LABEL_CAPTION_PUBLISHED = "Published";

    private static final String LABEL_CAPTION_RELEASED = "Released";

    private static final int GRID_ROWS = 5;

    private static final int GRID_COLS = 3;

    private static final long serialVersionUID = -211003770452173644L;

    private RegistrationTypeConverter regTypeConverter = new RegistrationTypeConverter();

    private AbstractView<?> parentView;

    private RegistrationDTO regDto;

    private TimePeriodFormatter timePeriodFormatter = new TimePeriodFormatter(DateTimeFormat.ISO8601_DATE);

    // --------------------------------------------------

    private RegistrationStateLabel stateLabel = new RegistrationStateLabel();

    private Link identifierLink = new Link();

    private Label citationSummaryLabel = new Label();

    private Button blockedByButton = new Button(FontAwesome.WARNING);

    private Button messageButton;

    private Button openButton = new Button(FontAwesome.COGS);

    private Label submitterLabel = new Label();

    private Label createdLabel = new Label();

    private Label publishedLabel = new Label();

    private Label releasedLabel = new Label();

    private Panel blockingRelationsPanel;

    /**

     *

     */

    public RegistrationItem(RegistrationDTO item, AbstractView<?> parentView) {

        super(GRID_COLS, GRID_ROWS);

        init();

        setItem(item, parentView);

    }

    /**

    *

    */

   public RegistrationItem(RegistrationWorkingSet workingSet, AbstractView<?> parentView) {

       super(GRID_COLS, GRID_ROWS);

       init();

       blockedByButton.setVisible(false);

       setWorkingSet(workingSet, parentView);

   }

    public void init() {

        setWidth(100, Unit.PERCENTAGE);

        addStyleName("registration-list-item");

        CssLayout stateUserContainer = new CssLayout();

        stateLabel.setStyleName(LABEL_NOWRAP + " registration-state");

        stateLabel.setVisible(false);

        submitterLabel.setStyleName(LABEL_NOWRAP + " submitter");

        submitterLabel.setIcon(FontAwesome.USER);

        submitterLabel.setContentMode(ContentMode.HTML);

        submitterLabel.setVisible(false);

        stateUserContainer.addComponents(stateLabel, submitterLabel);

        addComponent(stateUserContainer, 0, 0);

        setComponentAlignment(stateUserContainer, Alignment.TOP_LEFT);

        identifierLink.setVisible(false);

        addComponent(identifierLink, 1, 0);

        setComponentAlignment(identifierLink, Alignment.TOP_CENTER);

        setColumnExpandRatio(1, 1.0f);

        messageButton = new Button(FontAwesome.COMMENT);

        CssLayout buttonGroup = new CssLayout(blockedByButton, messageButton, openButton);

        blockedByButton.setStyleName(ValoTheme.BUTTON_TINY);

        blockedByButton.setEnabled(false);

        messageButton.setStyleName(ValoTheme.BUTTON_TINY);

        messageButton.setEnabled(false);

        openButton.setStyleName(ValoTheme.BUTTON_TINY);

        openButton.addStyleName(ValoTheme.BUTTON_PRIMARY);

        openButton.setVisible(false);

        buttonGroup.setStyleName(ValoTheme.LAYOUT_COMPONENT_GROUP);

        addComponent(buttonGroup, 2, 0);

        setComponentAlignment(buttonGroup, Alignment.TOP_RIGHT);

        citationSummaryLabel.setContentMode(ContentMode.HTML);

        addComponent(citationSummaryLabel, 0, 1, 1, 3);

        createdLabel.setStyleName(LABEL_NOWRAP);

        createdLabel.setContentMode(ContentMode.HTML);

        createdLabel.setWidthUndefined();

        addComponent(createdLabel, 2, 1);

        setComponentAlignment(createdLabel, Alignment.BOTTOM_RIGHT);

        publishedLabel.setStyleName(LABEL_NOWRAP);

        publishedLabel.setContentMode(ContentMode.HTML);

        publishedLabel.setWidthUndefined();

        publishedLabel.setVisible(false);

        addComponent(publishedLabel, 2, 2);

        setComponentAlignment(publishedLabel, Alignment.BOTTOM_RIGHT);

        releasedLabel.setStyleName(LABEL_NOWRAP);

        releasedLabel.setContentMode(ContentMode.HTML);

        releasedLabel.setWidthUndefined();

        releasedLabel.setVisible(false);

        addComponent(releasedLabel, 2, 3);

        setComponentAlignment(releasedLabel, Alignment.BOTTOM_RIGHT);

    }

    public void setItem(RegistrationDTO regDto, AbstractView<?> parentView){

        this.parentView = parentView;

        this.regDto = regDto;

        NavigationEvent navigationEvent = null;

        if(regDto.getCitationID() != null) {

            navigationEvent = new NavigationEvent(

                    RegistrationWorksetViewBean.NAME,

                    Integer.toString(regDto.getCitationID())

                    );

        } else {

            setComponentError(new UserError("Citation is missing"));

        }

        updateUI(regDto.getBibliographicCitationString(), regDto.getCreated(), regDto.getDatePublished(), regDto.getValidationProblems().size(),

                navigationEvent, null, regDto, regDto.getSubmitterUserName());

    }

    public void setWorkingSet(RegistrationWorkingSet workingSet, AbstractView<?> parentView){

        this.parentView = parentView;

        ReferenceEditorAction referenceEditorAction = null;

        if(workingSet.getCitationId() != null){

            if(UserHelper.fromSession().userHasPermission(Reference.class, workingSet.getCitationId(), CRUD.UPDATE)){

                referenceEditorAction = new ReferenceEditorAction(EditorActionType.EDIT, workingSet.getCitationId(), null, parentView);

            }

            PermissionDebugUtils.addGainPerEntityPermissionButton(this, Reference.class, workingSet.getCitationId(), EnumSet.of(CRUD.UPDATE, CRUD.DELETE), null);

        } else {

            if(UserHelper.fromSession().userHasPermission(Reference.class, CRUD.CREATE, null, null, parentView)){

                referenceEditorAction = new ReferenceEditorAction(EditorActionType.ADD);

            }

        }

        TimePeriod datePublished = null;

        String submitterName = null;

        if(workingSet.getRegistrationDTOs().size() > 0){

            datePublished = workingSet.getRegistrationDTOs().get(0).getDatePublished();

            submitterName = workingSet.getRegistrationDTOs().get(0).getSubmitterUserName();

        }

        updateUI(workingSet.getCitation(), workingSet.getCreated(), datePublished, workingSet.messagesCount(),

                referenceEditorAction, FontAwesome.EDIT, null, submitterName);

    }

    /**

     * @param submitterUserName TODO

     *

     */

    private void updateUI(String citationString,  DateTime created, TimePeriod datePublished,  int messagesCount,

            Object openButtonEvent, Resource openButtonIcon, RegistrationDTO regDto, String submitterUserName) {

        StringBuffer labelMarkup = new StringBuffer();

        DateTime registrationDate = null;

        if(messagesCount > 0){

            getMessageButton().setEnabled(true);

            // getMessageButton().addStyleName(RegistrationStyles.STYLE_FRIENDLY_FOREGROUND);

            getMessageButton().addClickListener(e -> {

                ShowDetailsEvent detailsEvent;

                if(regDto != null){

                    detailsEvent = new ShowDetailsEvent<RegistrationDTO, Integer>(

                            e,

                            RegistrationDTO.class,

                            regDto.getId(),

                            VALIDATION_PROBLEMS);

                } else {

                    detailsEvent = new ShowDetailsEvent<RegistrationWorkingSet, Integer>(

                            e,

                            RegistrationWorkingSet.class,

                            null,

                            VALIDATION_PROBLEMS);

                }

                publishEvent(detailsEvent);

                }

            );

            getMessageButton().setCaption("<span class=\"" + RegistrationStyles.BUTTON_BADGE +"\"> " + messagesCount + "</span>");

            getMessageButton().setCaptionAsHtml(true);

        }

        if(regDto != null && regDto.isBlocked()){

            getBlockedByButton().setEnabled(true);

            getBlockedByButton().addStyleName(STYLE_NAME_BLOCKED);

        }

        labelMarkup.append(citationString);

        if(openButtonEvent != null){

            // Buttons

            getOpenButton().setVisible(true);

            Collection<?> removeCandidates = getOpenButton().getListeners(ClickListener.class);

            removeCandidates.forEach(l -> getOpenButton().removeClickListener((ClickListener)l));

            getOpenButton().addClickListener(e -> publishEvent(openButtonEvent));

        }

        if(openButtonIcon != null){

            getOpenButton().setIcon(openButtonIcon);

        }

        if(regDto != null){

            labelMarkup.append("</br>").append(regDto.getSummary());

            stateLabel.setVisible(true);

            stateLabel.update(regDto.getStatus());

            if(regDto.getIdentifier() != null){

                getIdentifierLink().setResource(new ExternalResource(regDto.getIdentifier()));

            }

            getIdentifierLink().setCaption(regDto.getIdentifier());

            //TODO make responsive and use specificIdentifier in case the space gets too narrow

            getIdentifierLink().setVisible(true);

            getIdentifierLink().setEnabled(regDto.getStatus() == RegistrationStatus.PUBLISHED);

            registrationDate = regDto.getRegistrationDate();

        }

        getCitationSummaryLabel().setValue(labelMarkup.toString());

        getSubmitterLabel().setValue(submitterUserName);

        updateDateLabels(created, datePublished, registrationDate);

    }

    private void updateDateLabels(DateTime created, TimePeriod datePublished, DateTime released) {

        if(created != null){

            getCreatedLabel().setValue("<span class=\"caption\">" + LABEL_CAPTION_CREATED + "</span>&nbsp;" + created.toString(ISODateTimeFormat.yearMonthDay()));

        }

        if(datePublished != null){

            getPublishedLabel().setVisible(true);

            getPublishedLabel().setValue("<span class=\"caption\">" + LABEL_CAPTION_PUBLISHED + "</span>&nbsp;" + timePeriodFormatter.print(datePublished));

        }

        if(released != null){

            getReleasedLabel().setVisible(true);

            getReleasedLabel().setValue("<span class=\"caption\">" + LABEL_CAPTION_RELEASED + "</span>&nbsp;" + released.toString(ISODateTimeFormat.yearMonthDay()));

        }

    }

    private void publishEvent(Object event) {

        if(event instanceof NavigationEvent){

            parentView.getViewEventBus().publish(EventScope.UI, this, event);

        } else {

            parentView.getViewEventBus().publish(this, event);

        }

    }

    public int getRegistrationId(){

        return regDto.getId();

    }

    /**

     * @param showBlockingRelations the showBlockingRelations to set

     */

    public void showBlockingRegistrations(Set<RegistrationDTO> blockingRegDTOs) {

        if(blockingRelationsPanel == null) {

            if(regDto.isBlocked() && blockingRegDTOs.isEmpty()){

                throw new RuntimeException("Registration is blocked but tet of blocking registrations is empty");

            }

            if(!regDto.isBlocked() && !blockingRegDTOs.isEmpty()){

                throw new RuntimeException("No point showing blocking registrations for an unblocked registration");

            }

            blockingRelationsPanel = new RegistrationItemsPanel(parentView, "blocked by", blockingRegDTOs);

            addComponent(blockingRelationsPanel, 0, 4, GRID_COLS - 1, 4);

        }

    }

    /* ====== RegistrationItemDesign Getters ====== */

    /**

     * @return the typeStateLabel

     */

    public Label getTypeStateLabel() {

        return stateLabel;

    }

    /**

     * @return the identifierLink

     */

    public Link getIdentifierLink() {

        return identifierLink;

    }

    /**

     * @return the citationSummaryLabel

     */

    public Label getCitationSummaryLabel() {

        return citationSummaryLabel;

    }

    /**

     * @return the blockedByButton

     */

    public Button getBlockedByButton() {

        return blockedByButton;

    }

    /**

     * @return the validationProblemsButton

     */

    public Button getMessageButton() {

        return messageButton;

    }

    /**

     * @return the openButton

     */

    public Button getOpenButton() {

        return openButton;

    }

    /**

     * @return the createdLabel

     */

    public Label getCreatedLabel() {

        return createdLabel;

    }

    /**

     * @return the publishedLabel

     */

    public Label getPublishedLabel() {

        return publishedLabel;

    }

    /**

     * @return

     */

    public Label getReleasedLabel() {

        return releasedLabel;

    }

    /**

     * @return the submitterLabel

     */

    public Label getSubmitterLabel() {

        return submitterLabel;

    }

    /**

     * @return the showBlockingRelations

     */

    public boolean isShowBlockingRelations() {

        return blockingRelationsPanel != null;

    }

   /* --------------------------------------- */

}