/*
 * Copyright 2010 JBoss Inc
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.drools.guvnor.client.qa.testscenarios;

import org.drools.guvnor.client.common.ImageButton;
import org.drools.guvnor.client.common.SmallLabel;
import org.drools.guvnor.client.messages.Constants;
import org.drools.guvnor.client.resources.Images;
import org.drools.ide.common.client.modeldriven.testing.Fixture;
import org.drools.ide.common.client.modeldriven.testing.FixtureList;
import org.drools.ide.common.client.modeldriven.testing.RetractFact;
import org.drools.ide.common.client.modeldriven.testing.Scenario;

import com.google.gwt.core.client.GWT;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.ui.FlexTable;
import com.google.gwt.user.client.ui.HasHorizontalAlignment;
import com.google.gwt.user.client.ui.HasVerticalAlignment;

/**
 * Created by IntelliJ IDEA.
 * User: nheron
 * Date: 7 nov. 2009
 * Time: 19:29:06
 * To change this template use File | Settings | File Templates.
 */
public class RetractWidget extends FlexTable {

    private Constants              constants = GWT.create( Constants.class );
    private static Images          images    = GWT.create( Images.class );

    protected final FixtureList    retractList;
    protected final Scenario       scenario;
    protected final ScenarioWidget parent;

    public RetractWidget(FixtureList retractList,
                         Scenario scenario,
                         ScenarioWidget parent) {

        this.retractList = retractList;
        this.scenario = scenario;
        this.parent = parent;

        render();
    }

    private void render() {

        clear();

        getCellFormatter().setStyleName( 0,
                                         0,
                                         "modeller-fact-TypeHeader" );
        getCellFormatter().setAlignment( 0,
                                         0,
                                         HasHorizontalAlignment.ALIGN_CENTER,
                                         HasVerticalAlignment.ALIGN_MIDDLE );
        setStyleName( "modeller-fact-pattern-Widget" );
        setWidget( 0,
                   0,
                   new SmallLabel( constants.RetractFacts() ) );
        getFlexCellFormatter().setColSpan( 0,
                                           0,
                                           2 );

        int row = 1;
        for ( Fixture fixture : retractList ) {
            if ( fixture instanceof RetractFact ) {
                final RetractFact retractFact = (RetractFact) fixture;
                setWidget( row,
                           0,
                           new SmallLabel( retractFact.name ) );

                setWidget( row,
                           1,
                           new DeleteButton( retractFact ) );

                row++;
            }
        }
    }

    class DeleteButton extends ImageButton {
        public DeleteButton(final RetractFact retractFact) {
            super( images.deleteItemSmall(),
                   constants.RemoveThisRetractStatement() );

            addClickHandler( new ClickHandler() {
                public void onClick(ClickEvent event) {
                    retractList.remove( retractFact );
                    scenario.fixtures.remove( retractFact );
                    parent.renderEditor();
                }
            } );
        }
    }
}