/*
 * Copyright (C) 2005 Jesper Steen Møller
 *
 * Licensed under the Mozilla Public License version 1.1 
 * with a permitted attribution clause. You may obtain a
 * copy of the License at
 *
 *   http://www.alfresco.org/legal/license.txt
 *
 * 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.alfresco.repo.action.executer;

import java.io.Serializable;
import java.util.Map;

import org.alfresco.model.ContentModel;
import org.alfresco.repo.action.ActionImpl;
import org.alfresco.repo.content.MimetypeMap;
import org.alfresco.repo.content.metadata.MetadataExtracterRegistry;
import org.alfresco.repo.content.transform.AbstractContentTransformerTest;
import org.alfresco.service.cmr.repository.ContentService;
import org.alfresco.service.cmr.repository.ContentWriter;
import org.alfresco.service.cmr.repository.NodeRef;
import org.alfresco.service.cmr.repository.NodeService;
import org.alfresco.service.cmr.repository.StoreRef;
import org.alfresco.service.namespace.QName;
import org.alfresco.util.BaseSpringTest;
import org.alfresco.util.GUID;

/**
 * Test of the ActionExecuter for extracting metadata. Note: This test makes
 * assumptions about the PDF test data for PdfBoxExtracter.
 * 
 * @author Jesper Steen Møller
 */
public class ContentMetadataExtracterTest extends BaseSpringTest
{
    protected static final String QUICK_TITLE = "The quick brown fox jumps over the lazy dog";
    protected static final String QUICK_DESCRIPTION = "Gym class featuring a brown fox and lazy dog";
    protected static final String QUICK_CREATOR = "Nevin Nollop";

    private NodeService nodeService;
    private ContentService contentService;
    private MetadataExtracterRegistry metadataExtracterRegistry;
    private StoreRef testStoreRef;
    private NodeRef rootNodeRef;
    private NodeRef nodeRef;

    private ContentMetadataExtracter executer;

    private final static String ID = GUID.generate();

    @Override
    protected void onSetUpInTransaction() throws Exception
    {
        this.nodeService = (NodeService) this.applicationContext.getBean("nodeService");
        this.contentService = (ContentService) this.applicationContext.getBean("contentService");
        this.metadataExtracterRegistry = (MetadataExtracterRegistry) this.applicationContext
                .getBean("metadataExtracterRegistry");

        // Create the store and get the root node
        this.testStoreRef = this.nodeService.createStore(
                StoreRef.PROTOCOL_WORKSPACE,
                "Test_" + System.currentTimeMillis());
        this.rootNodeRef = this.nodeService.getRootNode(this.testStoreRef);

        // Create the node used for tests
        this.nodeRef = this.nodeService.createNode(
                this.rootNodeRef, ContentModel.ASSOC_CHILDREN,
                QName.createQName("{test}testnode"),
                ContentModel.TYPE_CONTENT).getChildRef();

        // Setup the content from the PDF test data
        ContentWriter cw = this.contentService.getWriter(nodeRef, ContentModel.PROP_CONTENT, true);
        cw.setMimetype(MimetypeMap.MIMETYPE_PDF);
        cw.putContent(AbstractContentTransformerTest.loadQuickTestFile("pdf"));

        // Get the executer instance
        this.executer = (ContentMetadataExtracter) this.applicationContext.getBean(ContentMetadataExtracter.NAME);
    }

    /**
     * Test execution of the extraction itself
     */
    public void testFromBlanks()
    {
        // Test that the action writes properties when they don't exist or are
        // unset

        // Get the old props
        Map<QName, Serializable> props = this.nodeService.getProperties(this.nodeRef);
        props.remove(ContentModel.PROP_AUTHOR);
        props.put(ContentModel.PROP_TITLE, "");
        props.put(ContentModel.PROP_DESCRIPTION, null); // Wonder how this will
                                                        // be handled
        this.nodeService.setProperties(this.nodeRef, props);

        // Execute the action
        ActionImpl action = new ActionImpl(ID, SetPropertyValueActionExecuter.NAME, null);

        this.executer.execute(action, this.nodeRef);

        // Check that the properties have been set
        assertEquals(QUICK_TITLE, this.nodeService.getProperty(this.nodeRef, ContentModel.PROP_TITLE));
        assertEquals(QUICK_DESCRIPTION, this.nodeService.getProperty(this.nodeRef, ContentModel.PROP_DESCRIPTION));
        assertEquals(QUICK_CREATOR, this.nodeService.getProperty(this.nodeRef, ContentModel.PROP_AUTHOR));
    }

    /**
     * Test execution of the pragmatic approach
     */
    public void testFromPartial()
    {
        // Test that the action does not overwrite properties that are already
        // set
        String myCreator = "Null-op";
        String myTitle = "The hot dog is eaten by the city fox";

        // Get the old props
        Map<QName, Serializable> props = this.nodeService.getProperties(this.nodeRef);
        props.put(ContentModel.PROP_AUTHOR, myCreator);
        props.put(ContentModel.PROP_TITLE, myTitle);
        props.remove(ContentModel.PROP_DESCRIPTION); // Allow this baby
        this.nodeService.setProperties(this.nodeRef, props);

        // Execute the action
        ActionImpl action = new ActionImpl(ID, SetPropertyValueActionExecuter.NAME, null);

        this.executer.execute(action, this.nodeRef);

        // Check that the properties have been preserved
        assertEquals(myTitle, this.nodeService.getProperty(this.nodeRef, ContentModel.PROP_TITLE));
        assertEquals(myCreator, this.nodeService.getProperty(this.nodeRef, ContentModel.PROP_AUTHOR));

        // But this one should have been set
        assertEquals(QUICK_DESCRIPTION, this.nodeService.getProperty(this.nodeRef, ContentModel.PROP_DESCRIPTION));

    }

    // If we implement other policies than "pragmatic", they should be tested as
    // well...
}
