/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.util.jar.*;
import java.util.regex.*;

import org.codehaus.plexus.util.*;

try
{
  File build;
  File mavenBuild;
  File mavenBuildProperties;

  // Webapp project

  build = new File( basedir, "build.xml" );
  if ( build.isDirectory() || !build.exists() )
  {
    System.err.println( "The file '" + build.getAbsolutePath() + "' is a directory or doesn't exist." );
    return false;
  }

  mavenBuild = new File( basedir, "maven-build.xml" );
  if ( mavenBuild.isDirectory() || !mavenBuild.exists() )
  {
    System.err.println( "The file '" + mavenBuild.getAbsolutePath() + "' is a directory or doesn't exist." );
    return false;
  }

  String xml = FileUtils.fileRead( mavenBuild, "UTF-8" );
  Matcher m0 = Pattern.compile( "<copy\\s+file\\s*=\\s*\\Q\"${maven.repo.local}/log4j/log4j/1.2.14/log4j-1.2.14.jar\"\\E"
      + "\\s*todir\\s*=\\s*\\Q\"${maven.build.dir}/${maven.build.finalName}/WEB-INF/lib\"\\E" ).matcher( xml );
  System.out.println( "Checking for existence of <copy> from ${maven.repo.local} for WAR libs" );
  if ( !m0.find() )
  {
      System.err.println( "FAILED!\n" + xml );
      return false;
  }

  mavenBuildProperties = new File( basedir, "maven-build.properties" );
  if ( mavenBuildProperties.isDirectory() || !mavenBuildProperties.exists() )
  {
    System.err.println( "The file '" + mavenBuildProperties.getAbsolutePath() + "' is a directory or doesn't exist." );
    return false;
  }

  warFile = new File( basedir, "target/ant-webapp-test.war" );
  System.out.println( "Checking for existence of WAR file: " + warFile );
  if ( !warFile.isFile() )
  {
    System.err.println( "FAILED!" );
    return false;
  }

  JarFile war = new JarFile( warFile );

  String[] expected = {
    "index.jsp",
    "WEB-INF/web.xml",
    "WEB-INF/test.txt",
    "WEB-INF/classes/test.properties",
    "WEB-INF/classes/org/MyClass.class",
    "WEB-INF/lib/log4j-1.2.14.jar",
    "WEB-INF/lib/maven-model-2.0.6.jar",
    "WEB-INF/lib/plexus-utils-1.4.1.jar",
  };
  for ( String entry : expected )
  {
    System.out.println( "Checking for existence of WAR file entry: " + entry );
    if ( war.getEntry( entry ) == null )
    {
      System.err.println( "FAILED!" );
      return false;
    }

    System.out.println( "Checking for uniqueness of WAR file entry: " + entry );
    int count = 0;
    for ( Enumeration en = war.entries(); en.hasMoreElements(); )
    {
      JarEntry je = (JarEntry) en.nextElement();
      if ( entry.equals( je.getName() ) )
      {
        count++;
      }
    }
    if ( count != 1 )
    {
      System.err.println( "FAILED! " + count );
      return false;
    }
  }

  String[] unexpected = {
    "org/MyClass.class",
  };
  for ( String entry : unexpected )
  {
    System.out.println( "Checking for absence of WAR file entry: " + entry );
    if ( war.getEntry( entry ) != null )
    {
      System.err.println( "FAILED!" );
      return false;
    }
  }

  war.close();
}
catch( Throwable t )
{
    t.printStackTrace();
    return false;
}

return true;