package module.fileManagement.presentationTier.pages;

import java.util.List;
import java.util.Map;

import module.fileManagement.domain.DirNode;
import module.fileManagement.domain.FileManagementSystem;
import module.fileManagement.domain.metadata.MetadataTemplate;
import module.organization.domain.Unit;
import pt.ist.bennu.core.applicationTier.Authenticate;
import pt.ist.bennu.core.domain.RoleType;
import pt.ist.fenixframework.pstm.AbstractDomainObject;
import pt.ist.vaadinframework.annotation.EmbeddedComponent;
import pt.ist.vaadinframework.data.ItemConstructor;
import pt.ist.vaadinframework.data.hints.Options;
import pt.ist.vaadinframework.data.reflect.DomainContainer;
import pt.ist.vaadinframework.data.reflect.DomainItem;
import pt.ist.vaadinframework.ui.EmbeddedComponentContainer;
import pt.ist.vaadinframework.ui.TransactionalForm;

import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Button.ClickListener;
import com.vaadin.ui.CustomComponent;
import com.vaadin.ui.Label;
import com.vaadin.ui.VerticalLayout;

@EmbeddedComponent(path = { "ManageDirProperties" }, args = { "dirNode" })
public class ManageDirProperties extends CustomComponent implements EmbeddedComponentContainer {

    public final class DirNodePartyConstructor implements ItemConstructor<Object> {

        @Override
        public Object[] getOrderedArguments() {
            return new Object[] { "unit" };
        }

        public DirNode createDir(final Unit unit) {
            return new DirNode(unit);
        }
    }

    private DomainItem<DirNode> dirNodeItem;
    private VerticalLayout mainLayout;

    @Override
    public boolean isAllowedToOpen(Map<String, String> args) {
        return Authenticate.getCurrentUser().hasRoleType(RoleType.MANAGER);
    }

    @Override
    public void setArguments(Map<String, String> args) {
        String dirNodeOid = args.get("dirNode");
        setDirNode((DirNode) AbstractDomainObject.fromExternalId(dirNodeOid));
    }

    private void setDirNode(DirNode dirNode) {
        dirNodeItem.setValue(dirNode);
        updateContent();
    }

    public ManageDirProperties() {
        dirNodeItem = new DomainItem<DirNode>(DirNode.class);
        mainLayout = new VerticalLayout();
        mainLayout.setSpacing(true);
        setCompositionRoot(mainLayout);
    }

    private void updateContent() {
        mainLayout.removeAllComponents();
        mainLayout.addComponent(new Label("<h3>Opções Directoria</h3>", Label.CONTENT_XHTML));
        setTemplateSelect();
        final TransactionalForm form = new TransactionalForm(FileManagementSystem.BUNDLE);
        form.setItemDataSource(dirNodeItem);
        form.setVisibleItemProperties(new String[] { "sequenceNumber", "filenameTemplate", "defaultTemplate" });
        form.addButton("Submeter", new ClickListener() {

            @Override
            public void buttonClick(ClickEvent event) {
                form.commit();
                getWindow().showNotification("Alterações efectuadas");
            }
        });
        form.addClearButton();
        form.addCancelButton();
        mainLayout.addComponent(form);

        // Button btCalcSize = new Button("recalcular tamanho", new
        // ClickListener() {
        //
        // @Override
        // public void buttonClick(ClickEvent event) {
        //
        // }
        // });
        // mainLayout.addComponent(btCalcSize);
    }

    private void setTemplateSelect() {
        final List<MetadataTemplate> metadataTemplates = FileManagementSystem.getInstance().getMetadataTemplates();
        final DomainItem<MetadataTemplate> defaultTemplate =
                (DomainItem<MetadataTemplate>) dirNodeItem.getItemProperty("defaultTemplate");
        final DomainContainer<MetadataTemplate> domainContainer =
                new DomainContainer<MetadataTemplate>(metadataTemplates, MetadataTemplate.class);
        final Options options = new Options(domainContainer);
        options.captionPropertyId("name");
        defaultTemplate.addHint(options);
    }
}