/*
 * Copyright 2005-2011 the original author or authors.
 * 
 * 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.wamblee.xmlrouter.impl;

import static org.mockito.Matchers.*;
import static org.mockito.Mockito.*;

import java.util.Arrays;
import java.util.Collection;
import java.util.logging.Level;

import javax.xml.transform.dom.DOMSource;

import org.junit.Before;
import org.junit.Test;
import org.wamblee.general.SystemClock;
import org.wamblee.xmlrouter.common.Id;
import org.wamblee.xmlrouter.config.DocumentType;
import org.wamblee.xmlrouter.config.RouterConfig;
import org.wamblee.xmlrouter.config.Transformation;
import org.wamblee.xmlrouter.listener.EventInfo;
import org.wamblee.xmlrouter.listener.EventListener;
import org.wamblee.xmlrouter.listener.LoggingEventListener;
import org.wamblee.xmlrouter.subscribe.Destination;

public class XMLRouterFunctionTest {

    private XMLRouterConfiguration config;
    private XMLRouter routerService;
    private XMLRouterConfigService configService;

    private EventListener listener;

    private DOMSource source1;
    private DOMSource source2;

    @Before
    public void setUp() {
        config = new XMLRouterConfigurationImpl();
        EventListener logListener = new LoggingEventListener(Level.INFO);
        listener = spy(logListener);
        routerService = new XMLRouter(new SystemClock(), config, listener);
        configService = new XMLRouterConfigService(config);

        source1 = mock(DOMSource.class);
        source2 = mock(DOMSource.class);
    }

    private RouterConfig registerDocumentType(String aType) {
        DocumentType type = mock(DocumentType.class);
        when(type.isInstance(any(DOMSource.class))).thenReturn(true);
        when(type.getName()).thenReturn(aType);
        when(type.getId()).thenReturn(new Id<DocumentType>(aType));
        RouterConfig routerConfig = configService.emptyConfig("app");
        routerConfig.documentTypeConfig().add(type);
        return routerConfig;
    }

    @Test
    public void testOneTransformationOneDestination() {
        RouterConfig routerConfig = registerDocumentType("any");
        Transformation transformation = mock(Transformation.class);
        when(transformation.getId())
            .thenReturn(new Id<Transformation>("trans"));
        when(transformation.getFromType()).thenReturn("any");
        when(transformation.getToType()).thenReturn("bla");
        when(transformation.transform(same(source1))).thenReturn(source2);
        routerConfig.transformationConfig().add(transformation);

        configService.apply(routerConfig, null);

        Destination destination = mock(Destination.class);
        when(
            destination.chooseFromTargetTypes((Collection<String>) anyObject()))
            .thenReturn(Arrays.asList("bla"));

        routerService.registerDestination(destination);

        when(destination.receive(any(DOMSource.class))).thenReturn(true);
        routerService.publish("bla", source1);
        verify(listener).delivered(any(EventInfo.class),
            anyListOf(Transformation.class), anyString(), eq(true));

        verify(transformation).transform(source1);
        verify(destination).receive(same(source2));

        // now the same when the destination rejects the event.
        when(destination.receive(any(DOMSource.class))).thenReturn(false);
        routerService.publish("bla", source1);
        verify(listener).notDelivered(any(EventInfo.class));
    }
}