/** Copyright (C) 2017 by Bundesanstalt für Gewässerkunde
 * Software engineering by
 *  Björnsen Beratende Ingenieure GmbH
 *  Dr. Schumacher Ingenieurbüro für Wasser und Umwelt
 *
 * This file is Free Software under the GNU AGPL (>=v3)
 * and comes with ABSOLUTELY NO WARRANTY! Check out the
 * documentation coming with Dive4Elements River for details.
 */
package org.dive4elements.river.client.client.ui;

import com.google.gwt.user.client.ui.Label;
import com.smartgwt.client.types.Alignment;
import com.smartgwt.client.types.ListGridFieldType;
import com.smartgwt.client.widgets.form.fields.IntegerItem;
import com.smartgwt.client.widgets.form.fields.TextItem;
import com.smartgwt.client.widgets.form.validator.IntegerRangeValidator;
import com.smartgwt.client.widgets.form.validator.IsIntegerValidator;
import com.smartgwt.client.widgets.form.validator.Validator;
import com.smartgwt.client.widgets.grid.ListGrid;
import com.smartgwt.client.widgets.grid.ListGridField;
import com.smartgwt.client.widgets.grid.SortNormalizer;
import com.smartgwt.client.widgets.grid.events.RecordClickEvent;
import com.smartgwt.client.widgets.grid.events.RecordClickHandler;
import com.smartgwt.client.widgets.layout.VLayout;

/**
 * @author Domenico Nardi Tironi
 *
 */
public class PanelHelper {

    public PanelHelper() {

    }

    public static final TextItem createItem(final String identifier, final String title, final String width, final Validator... validator) {
        final TextItem item = new TextItem(identifier, title);
        item.setWidth(width);
        item.setWrapTitle(false);
        item.setValidators(validator);
        return item;
    }

    public static final IntegerItem createIntegerItem(final String identifier, final String title, final String width, final Validator... validator) {
        final IntegerItem item = new IntegerItem(identifier, title);
        item.setWidth(width);
        item.setWrapTitle(false);
        item.setValidators(validator);
        return item;
    }

    public static VLayout getSpacer(final int height) {
        final VLayout spacer = new VLayout();
        spacer.setHeight(height);
        return spacer;
    }

    public static TextItem createItem(final String title) {
        final TextItem inputItem = new TextItem(title);

        final boolean hideTitle = title == null || title.isEmpty();
        inputItem.setShowTitle(!hideTitle);
        // final CustomValidator validator = new CustomValidator() {
        // @Override
        // protected boolean condition(final Object value) {
        // return validate().size() > 0 ? false : true;
        // }
        // };
        inputItem.setValidators(new IsIntegerValidator()); // Validator hat keinen sichtbaren Effekt.
        inputItem.setWidth(60);
        return inputItem;

    }

    public static final ListGridField createRemoveField(final ListGrid table, final String icon) {
        final ListGridField removeField = new ListGridField("_removeRecord", "Remove Record") {
            {
                setType(ListGridFieldType.ICON);
                setIcon(icon);
                setCanEdit(false);
                setCanFilter(false);
                setCanSort(false);
                setCanGroupBy(false);
                setCanFreeze(false);
                setWidth(25);
                setCanDragResize(false);
                super.setCanToggle(false);
            }
        };
        table.addRecordClickHandler(new RecordClickHandler() {
            @Override
            public void onRecordClick(final RecordClickEvent event) {
                // Just handle remove-clicks
                if (!event.getField().getName().equals(removeField.getName())) {
                    return;
                }
                event.getViewer().removeData(event.getRecord());
            }
        });

        return removeField;
    }

    public static final ListGridField createIntTableField(final String key, final String msg, final boolean canSort, final SortNormalizer normalizer,
            final IntegerRangeValidator validators) {
        final ListGridField intField = new ListGridField(key, msg);
        intField.setType(ListGridFieldType.INTEGER);
        intField.setValidators(validators);
        intField.setWidth(90);
        intField.setAlign(Alignment.RIGHT);
        intField.setSortNormalizer(normalizer);
        intField.setCanSort(canSort);
        intField.setCanDragResize(false);

        return intField;
    }

    public static final Label getValidationLabel() {
        final Label label = new Label();
        label.setHeight("15px");
        label.getElement().getStyle().setColor("red");
        return label;
    }

}