/*
 * JBoss, Home of Professional Open Source
 * Copyright 2009 Red Hat Inc. and/or its affiliates and other contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * 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.jboss.arquillian.container.impl.client.deployment;

import java.io.File;
import java.util.logging.Logger;

import org.jboss.arquillian.config.descriptor.api.ArquillianDescriptor;
import org.jboss.arquillian.config.descriptor.api.EngineDef;
import org.jboss.arquillian.container.spi.client.deployment.DeploymentDescription;
import org.jboss.arquillian.container.spi.event.container.BeforeDeploy;
import org.jboss.arquillian.core.api.Instance;
import org.jboss.arquillian.core.api.annotation.Inject;
import org.jboss.arquillian.core.api.annotation.Observes;
import org.jboss.shrinkwrap.api.Archive;
import org.jboss.shrinkwrap.api.exporter.ExplodedExporter;
import org.jboss.shrinkwrap.api.exporter.ZipExporter;

/**
 * Handler that will export the generated {@link Archive} to the file system. <br/>
 * Used for debugging the deployment.
 *
 * @author <a href="mailto:aslak@redhat.com">Aslak Knutsen</a>
 * @version $Revision: $
 */
public class ArchiveDeploymentExporter 
{
   private static final Logger log = Logger.getLogger(ArchiveDeploymentExporter.class.getName());

   @Inject
   private Instance<ArquillianDescriptor> configuration;
   
   public void callback(@Observes BeforeDeploy event) throws Exception
   {
      ArquillianDescriptor descriptor = configuration.get();
      if(descriptor == null)
      {
         return;
      }
      EngineDef engine = descriptor.engine();

      String systemExport = SecurityActions.getProperty("arquillian.deploymentExportPath");
      String systemExportExploded = SecurityActions.getProperty("arquillian.deploymentExportExploded");
      String exportPath = (systemExport == null || systemExport.length() == 0) ? engine.getDeploymentExportPath():systemExport;
      Boolean exportExploded = (systemExportExploded == null || systemExportExploded.length() == 0) ? engine.getDeploymentExportExploded():Boolean.parseBoolean(systemExport);
      
      if(exportPath != null && event.getDeployment().isArchiveDeployment())
      {
         File exportDir = new File(exportPath);
         if (exportDir.isFile())
         {
            log.warning("Deployment export disabled. Export path points to an existing file: " + exportPath);
            return;
         }
         else if (!exportDir.isDirectory() && !exportDir.mkdirs())
         {
            log.warning("Deployment export directory could not be created: " + exportPath);
            return;
         }

         Archive<?> deployment;
         if(event.getDeployment().testable())
         {
            deployment = event.getDeployment().getTestableArchive();
         }
         else
         {
            deployment = event.getDeployment().getArchive();
         }
         
         if(exportExploded) {
            deployment.as(ExplodedExporter.class).exportExploded(
                  exportDir, createFileName(event.getDeployment(), deployment));
         }
         else {
            deployment.as(ZipExporter.class).exportTo(
                  new File(exportDir, createFileName(event.getDeployment(), deployment)),
                  true);
         }
      }
   }
   
   private String createFileName(DeploymentDescription deployment, Archive<?> archive)
   {
      // TODO: where do we get TestClass name from ? 
      return deployment.getTarget().getName() + "_" + deployment.getName() + "_" + archive.getName();
   }
}
