package org.activityinfo.ui.client.component.report.editor.chart;

/*
 * #%L
 * ActivityInfo Server
 * %%
 * Copyright (C) 2009 - 2013 UNICEF
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 3 of the 
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public 
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/gpl-3.0.html>.
 * #L%
 */

import com.extjs.gxt.ui.client.Style;
import com.extjs.gxt.ui.client.util.Margins;
import com.extjs.gxt.ui.client.widget.Component;
import com.extjs.gxt.ui.client.widget.ContentPanel;
import com.extjs.gxt.ui.client.widget.LayoutContainer;
import com.extjs.gxt.ui.client.widget.layout.BorderLayout;
import com.extjs.gxt.ui.client.widget.layout.BorderLayoutData;
import com.extjs.gxt.ui.client.widget.toolbar.LabelToolItem;
import com.google.inject.Inject;
import org.activityinfo.i18n.shared.I18N;
import org.activityinfo.legacy.client.Dispatcher;
import org.activityinfo.legacy.shared.command.RenderElement.Format;
import org.activityinfo.legacy.shared.reports.model.PivotChartReportElement;
import org.activityinfo.ui.client.EventBus;
import org.activityinfo.ui.client.component.report.view.ChartOFCView;
import org.activityinfo.ui.client.component.report.view.PivotGridPanel;
import org.activityinfo.ui.client.component.report.view.ReportViewBinder;
import org.activityinfo.ui.client.page.common.toolbar.ActionToolBar;
import org.activityinfo.ui.client.page.report.editor.ReportElementEditor;

import java.util.Arrays;
import java.util.List;

public class ChartEditor extends LayoutContainer implements ReportElementEditor<PivotChartReportElement> {

    private final EventBus eventBus;
    private final Dispatcher dispatcher;

    private ActionToolBar toolBar;

    private ChartTypeGroup typeGroup;
    private ChartPivotBar pivotBar;
    private PivotFilterPanel filterPane;

    private ReportViewBinder preview;
    private ChartOFCView chartView;

    private ContentPanel center;
    private PivotGridPanel gridPanel;

    private PivotChartReportElement model = new PivotChartReportElement();

    @Inject
    public ChartEditor(EventBus eventBus, Dispatcher service) {
        this.eventBus = eventBus;
        this.dispatcher = service;

        setLayout(new BorderLayout());

        createWest();
        createCenter();
        createToolBar();
        createChartPane();
        createDimBar();
        createGridPane();
    }

    private void createWest() {

        filterPane = new PivotFilterPanel(eventBus, dispatcher);

        BorderLayoutData west = new BorderLayoutData(Style.LayoutRegion.WEST, 0.30f);
        west.setCollapsible(true);
        west.setSplit(true);
        west.setMargins(new Margins(0, 5, 0, 0));

        add(filterPane, west);
    }

    private void createCenter() {

        center = new ContentPanel(new BorderLayout());
        center.setHeaderVisible(false);

        add(center, new BorderLayoutData(Style.LayoutRegion.CENTER));
    }

    private void createToolBar() {
        toolBar = new ActionToolBar();

        typeGroup = new ChartTypeGroup(eventBus);

        toolBar.add(new LabelToolItem(I18N.CONSTANTS.chartType()));
        toolBar.add(typeGroup.getButtons());

        center.setTopComponent(toolBar);
    }

    private void createChartPane() {
        chartView = new ChartOFCView();
        preview = new ReportViewBinder(eventBus, dispatcher, chartView);
        center.add(chartView, new BorderLayoutData(Style.LayoutRegion.CENTER));
    }

    private void createGridPane() {
        BorderLayoutData south = new BorderLayoutData(Style.LayoutRegion.SOUTH, 0.30f);
        south.setCollapsible(true);
        south.setSplit(true);
        south.setMargins(new Margins(5, 0, 0, 0));

        gridPanel = new PivotGridPanel(dispatcher);
        gridPanel.setHeadingText("Table");
        chartView.bindTable(gridPanel);


        center.add(gridPanel, south);
    }

    private void createDimBar() {
        pivotBar = new ChartPivotBar(eventBus, dispatcher);

        chartView.setBottomComponent(pivotBar);
    }

    @Override
    public void bind(PivotChartReportElement model) {
        this.model = model;
        typeGroup.bind(model);
        pivotBar.bind(model);
        filterPane.bind(model);
        preview.bind(model);
    }

    @Override
    public void disconnect() {
        typeGroup.disconnect();
        pivotBar.disconnect();
        filterPane.disconnect();
        preview.disconnect();
    }

    @Override
    public PivotChartReportElement getModel() {
        return model;
    }

    @Override
    public Component getWidget() {
        return this;
    }

    @Override
    public List<Format> getExportFormats() {
        return Arrays.asList(Format.PowerPoint, Format.Word, Format.PDF);
    }

}