/*
 * Copyright (C) 2005-2010 Alfresco Software Limited.
 *
 * This file is part of Alfresco
 *
 * Alfresco is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Alfresco 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
 */

package org.alfresco.repo.rendition;

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

import org.alfresco.model.ContentModel;
import org.alfresco.repo.model.Repository;
import org.alfresco.service.ServiceRegistry;
import org.alfresco.service.cmr.rendition.RenditionDefinition;
import org.alfresco.service.cmr.rendition.RenditionService;
import org.alfresco.service.cmr.repository.ChildAssociationRef;
import org.alfresco.service.cmr.repository.NodeRef;
import org.alfresco.service.cmr.repository.StoreRef;
import org.alfresco.service.cmr.search.ResultSet;
import org.alfresco.service.cmr.search.SearchService;
import org.alfresco.service.namespace.NamespaceService;
import org.alfresco.service.namespace.QName;
import org.alfresco.util.BaseAlfrescoSpringTest;
import org.alfresco.util.GUID;

/**
 * @author Brian Remmington
 * @author Nick Smith
 */
public class StandardRenditionLocationResolverTest extends BaseAlfrescoSpringTest
{
    private ServiceRegistry serviceRegistry;
    private NodeRef companyHome;
    private StandardRenditionLocationResolverImpl locationResolver;
    private RenditionService renditionService;
    private SearchService searchService;
    private Repository repositoryHelper;

    /**
     * Called during the transaction setup
     */
    @Override
    @SuppressWarnings("deprecation")
    protected void onSetUpInTransaction() throws Exception
    {
        super.onSetUpInTransaction();

        // Get the required services
        this.serviceRegistry = (ServiceRegistry) this.getApplicationContext().getBean("ServiceRegistry");
        this.nodeService=serviceRegistry.getNodeService();
        this.searchService = serviceRegistry.getSearchService();
        this.renditionService = (RenditionService) this.getApplicationContext().getBean("RenditionService");
        this.repositoryHelper = (Repository) this.getApplicationContext().getBean("repositoryHelper");
        ResultSet rs = searchService.query(StoreRef.STORE_REF_WORKSPACE_SPACESSTORE, SearchService.LANGUAGE_XPATH,
                    "/app:company_home");
        if (rs.length() != 1)
        {
            fail("Could not find company home");
        }
        companyHome = rs.getNodeRef(0);
        locationResolver = new StandardRenditionLocationResolverImpl();
        locationResolver.setServiceRegistry(serviceRegistry);
        locationResolver.setRepositoryHelper(repositoryHelper);
    }

    public void testChildAssociationFinder()
    {
        QName renditionKind = QName.createQName(NamespaceService.APP_MODEL_1_0_URI, "test");
        NodeRef sourceNode = makeNode(companyHome, ContentModel.TYPE_CONTENT);
        NodeRef tempRenditionNode = makeNode(sourceNode, ContentModel.TYPE_CONTENT);

        RenditionDefinition renditionDef = renditionService.createRenditionDefinition(renditionKind,
                    "brians_test_engine");

        // Test default behaviour, no destination path or NodeRef specified.
        RenditionLocation location = 
            locationResolver.getRenditionLocation(sourceNode,renditionDef, tempRenditionNode);

        assertEquals(sourceNode, location.getParentRef());
        assertNull(location.getChildName());
        assertNull(location.getChildRef());
        
        // Test fully specified path.
        NodeRef targetFolder = makeNode(companyHome, ContentModel.TYPE_FOLDER);
        String companyHomeName = (String) nodeService.getProperty(companyHome, ContentModel.PROP_NAME);
        String targetFolderName = (String) nodeService.getProperty(targetFolder, ContentModel.PROP_NAME);
        String template = "/"+companyHomeName+"/"+targetFolderName+"/brian.xml";
        renditionDef.setParameterValue(RenditionService.PARAM_DESTINATION_PATH_TEMPLATE, template); 
        location = locationResolver.getRenditionLocation(sourceNode, renditionDef, tempRenditionNode);

        assertEquals(targetFolder, location.getParentRef());
        assertEquals("brian.xml", location.getChildName());
        assertNull(location.getChildRef());

        // Test path with name substitution.
        template=targetFolderName+"/test-${sourceContentType}.xml";
        renditionDef.setParameterValue(RenditionService.PARAM_DESTINATION_PATH_TEMPLATE, template);
        location = locationResolver.getRenditionLocation(sourceNode, renditionDef, tempRenditionNode);

        assertEquals(targetFolder, location.getParentRef());
        assertEquals("test-"+ContentModel.PROP_CONTENT.getLocalName()+".xml", location.getChildName());
        assertNull(location.getChildRef());
   
        // Test that when the template path specifies an existing node then that
        // node is set as the 'childRef' property on the RenditionLocation.
        NodeRef destinationNode = makeNode(targetFolder, ContentModel.TYPE_CONTENT);
        String destinationName = (String) nodeService.getProperty(destinationNode, ContentModel.PROP_NAME);
        template = targetFolderName + "/" + destinationName;
        renditionDef.setParameterValue(RenditionService.PARAM_DESTINATION_PATH_TEMPLATE, template);
        location = locationResolver.getRenditionLocation(sourceNode, renditionDef, tempRenditionNode);
        
        assertEquals(targetFolder, location.getParentRef());
        assertEquals(destinationName, location.getChildName());
        assertEquals(destinationNode, location.getChildRef());
   
        // Test that the 'destination node' param takes precedence over the 'template path' param.
        template = "/" + targetFolderName + "/brian.xml";
        renditionDef.setParameterValue(RenditionService.PARAM_DESTINATION_PATH_TEMPLATE, template);
        renditionDef.setParameterValue(RenditionService.PARAM_DESTINATION_NODE, destinationNode);
        location = locationResolver.getRenditionLocation(sourceNode, renditionDef, tempRenditionNode);

        assertEquals(targetFolder, location.getParentRef());
        assertEquals(destinationName, location.getChildName());
        assertEquals(destinationNode, location.getChildRef());
    }

    public void testCreatesFoldersForTemplatedLocation() throws Exception
    {
        QName fooName = QName.createQName(NamespaceService.CONTENT_MODEL_1_0_URI, "testFooFolder");
        QName barName = QName.createQName(NamespaceService.CONTENT_MODEL_1_0_URI, "testBarFolder");
        String fooPath = "/testFooFolder";
        String barPath = fooPath + "/testBarFolder";

        List<ChildAssociationRef> childAssocs = nodeService.getChildAssocs(companyHome, ContentModel.ASSOC_CONTAINS,
                    fooName);
        assertTrue("Folder " + fooPath + " should not exist!", childAssocs.isEmpty());

        QName renditionKind = QName.createQName(NamespaceService.APP_MODEL_1_0_URI, "test");
        NodeRef sourceFolder = makeNode(companyHome, ContentModel.TYPE_FOLDER);
        NodeRef sourceNode = makeNode(sourceFolder, ContentModel.TYPE_CONTENT);
        NodeRef tempRenditionNode = makeNode(companyHome, ContentModel.TYPE_CONTENT);

        RenditionDefinition renditionDef = renditionService.createRenditionDefinition(renditionKind,
                    "nicks_test_engine");

        String pathTemplate = barPath + "${cwd}nick.xml";
        renditionDef.setParameterValue(RenditionService.PARAM_DESTINATION_PATH_TEMPLATE, pathTemplate);
        
        RenditionLocation location = 
            locationResolver.getRenditionLocation(sourceNode,renditionDef, tempRenditionNode);

        NodeRef fooNode = checkFolder(fooName, companyHome, "Foo");
        NodeRef barNode = checkFolder(barName, fooNode, "Bar");
        NodeRef finalFolderNode = checkFolder(nodeService.getPrimaryParent(sourceFolder).getQName(), barNode, "Final Folder");

        assertEquals("Final folder is not the rendition parent!", finalFolderNode, location.getParentRef());
        assertEquals("nick.xml", location.getChildName());
    }

//    public void testOldRenditionIsOrphaned() throws Exception
//    {
//        QName renditionKind = QName.createQName(NamespaceService.APP_MODEL_1_0_URI, "test");
//       NodeRef sourceNode = makeNode(companyHome, ContentModel.TYPE_CONTENT);
//        NodeRef tempRenditionNode = makeNode(sourceNode, ContentModel.TYPE_CONTENT);
//        ChildAssociationRef tempRenditionLocation=nodeService.getPrimaryParent(tempRenditionNode);
//        
//        RenditionDefinition definition = renditionService.createRenditionDefinition(renditionKind,
//                    "nicks_test_engine");
//        ChildAssociationRef oldRendition = 
//            nodeService.createNode(sourceNode, RenditionModel.ASSOC_RENDITION, definition.getRenditionName(), ContentModel.TYPE_CONTENT);
//        definition.setParameterValue(RenditionService.PARAM_ORPHAN_EXISTING_RENDITION, true);
//       
//        //Test deletes old rendition if it's under source Node and new rendition is not.
//        locationResolver.getRenditionLocation(sourceNode, definition, tempRenditionLocation);
//        
//        List<ChildAssociationRef> sourceChildren = nodeService.getChildAssocs(sourceNode);
//        assertFalse("The old rendition association should ahve been removed!", sourceChildren.contains(oldRendition));
//        assertFalse("The old rendition should have been deleted!", nodeService.exists(oldRendition.getChildRef()) );
//    }
    
    private NodeRef checkFolder(QName folderName, NodeRef parentName, String folderMessageName)
    {
        List<ChildAssociationRef> folderAssocs = nodeService.getChildAssocs(parentName, ContentModel.ASSOC_CONTAINS, folderName);
        assertEquals("Folder " + folderMessageName + " should exist!", 1, folderAssocs.size());
        NodeRef folderNode = folderAssocs.get(0).getChildRef();
        assertEquals(folderMessageName+" node is wrong type!", ContentModel.TYPE_FOLDER, nodeService.getType(folderNode));
        assertEquals(folderMessageName+" node has wrong name!", folderName.getLocalName(), 
                    nodeService.getProperty(folderNode, ContentModel.PROP_NAME));
        return folderNode;
    }

    private NodeRef makeNode(NodeRef parent, QName nodeType)
    {
        String uuid = GUID.generate();
        Map<QName, Serializable> props = new HashMap<QName, Serializable>();
        props.put(ContentModel.PROP_NAME, uuid);
        ChildAssociationRef assoc = nodeService.createNode(parent, ContentModel.ASSOC_CONTAINS, QName.createQName(
                    NamespaceService.CONTENT_MODEL_1_0_URI, uuid), nodeType, props);
        return assoc.getChildRef();
    }

}