/**
    * Copyright (C) 2010-2012 Joerg Bellmann <joerg.bellmann@googlemail.com>
    *
    * 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 com.googlecode.t7mp.steps;
  
  import java.io.File;
  import java.io.FileInputStream;
  import java.io.FileNotFoundException;
  import java.io.FileOutputStream;
  import java.io.IOException;
  import java.util.List;
  
  import org.apache.commons.io.IOUtils;
  
  import com.google.common.collect.Lists;
  import com.googlecode.t7mp.AbstractArtifact;
  import com.googlecode.t7mp.TomcatSetupException;
  import com.googlecode.t7mp.WebappArtifact;
  import com.googlecode.t7mp.util.ZipUtil;
  
  public class WebappsDeploymentStep extends AbstractDeploymentStep {
  
      @Override
      protected List<AbstractArtifact> getArtifactList() {
          List<AbstractArtifact> artifactList = Lists.newArrayList();
          artifactList.addAll(context.getConfiguration().getWebapps());
          return artifactList;
      }
  
      @Override
      protected void deployArtifacts(List<AbstractArtifact> artifactList) {
          for (AbstractArtifact artifact : artifactList) {
              final WebappArtifact webappArtifact = (WebappArtifact) artifact;
              if (webappArtifact.isUnpack() || webappArtifact.getTestContextFile() != null) {
                  unzipWebappArtifact(webappArtifact);
                  if (webappArtifact.getTestContextFile() != null) {
                      File metaInfDirectory = new File(createTargetFileName(webappArtifact) + "/META-INF");
                      metaInfDirectory.mkdirs();
                      try {
                          IOUtils.copy(new FileInputStream(webappArtifact.getTestContextFile()), new FileOutputStream(
                                  new File(metaInfDirectory, "context.xml")));
                      } catch (FileNotFoundException e) {
                          throw new TomcatSetupException(e.getMessage(), e);
                      } catch (IOException e) {
                          throw new TomcatSetupException(e.getMessage(), e);
                      }
                  }
              } else {
                  try {
                      String targetFileName = createTargetFileName(artifact);
                      File sourceFile = artifact.getFile();
                      File targetFile = new File(this.context.getConfiguration().getCatalinaBase(), "/webapps/" + targetFileName);
                      this.context.getLog().debug(
                              "Copy artifact from " + sourceFile.getAbsolutePath() + " to "
                                      + targetFile.getAbsolutePath());
                      this.setupUtil.copy(new FileInputStream(sourceFile), new FileOutputStream(targetFile));
                  } catch (IOException e) {
                      throw new TomcatSetupException(e.getMessage(), e);
                  }
              }
          }
      }
  
      @Override
      protected String createTargetFileName(AbstractArtifact abstractArtifact) {
          return ((WebappArtifact) abstractArtifact).getContextPath() + "." + abstractArtifact.getType();
      }
  
      protected void unzipWebappArtifact(WebappArtifact webappArtifact) {
          ZipUtil.unzip(webappArtifact.getFile(), new File(createTargetFileName(webappArtifact)));
      }
  }