/*
 * 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.
 */

addMavenClasspath() {
    maven_plugin_classpath = project.getReference("maven.test.classpath");
    paths = maven_plugin_classpath.list();
    for( path : paths ) {
        addClassPath( path );
    }
}
addMavenClasspath();

import org.apache.tools.ant.BuildException;
import org.apache.commons.io.*;
import org.apache.commons.io.filefilter.*;

/**
 * A list of all the generated files (and which class generates them as a comment)
 */
generatedFiles = new String[] {
    // AbstractEclipseManifestWriter(EclipseManifestWriter,RadManifestWriter)
    "META-INF/MANIFEST.MF",
    // EclipseWtpApplicationXMLWriter
    "target/eclipseEar/META-INF/application.xml", 
    "target/eclipseEar/META-INF/.modulemaps", 
    // EclipseWtpComponentWriter
    ".settings/.component",
    // EclipseWtpComponent15Writer
    ".settings/org.eclipse.wst.common.component",
    // EclipseWtpFacetsWriter
    ".settings/org.eclipse.wst.common.project.facet.core.xml",
    // EclipseWtpmodulesWriter
    ".wtpmodules",
    // EclipseAjdtWriter
    ".settings/org.eclipse.ajdt.ui.prefs",
    // EclipseClasspathWriter
    ".classpath",
    ".externalToolBuilders/maven-eclipse.xml", // via EclipseAntExternalLaunchConfigurationWriter(EclipseLaunchConfigurationWriter)
    // EclipseOSGiManifestWriter - only rewrites manifest
    // EclipseProjectWriter
    ".project",
    // EclipseSettingsWriter
    ".settings/org.eclipse.jdt.core.prefs",
    // MyEclipseHibernateWriter
    ".myhibernatedata",
    // MyEclipseMetadataWriter
    ".mymetadata",
    // MyEclipseSpringBeansWriter
    ".springBeans",
    // MyEclipseStrutsDataWriter
    ".mystrutsdata",
    // RadApplicationXMLWriter
    "META-INF/application.xml", 
    "META-INF/.modulemaps",    
    // RadEjbClasspathWriter
    "target/websphere/generated-classes/.classpath",
    // RadJ2EEWriter
    ".j2ee",
    // RadLibCopier - copies libraries no way to check
    // RadWebSettingsWriter
    ".websettings",
    // RadWebsiteConfigWriter
    ".website-config"
    };

assert( boolean condition ) 
{
    if ( !condition ) {
        print(
            "Test FAILED: "
            +"Line: "+ this.namespace.getInvocationLine()
            +" : "+this.namespace.getInvocationText()
            +" : while evaluating file: "+getSourceFileInfo()
        );
    }
}

/**
 * Rebase a file which removes the leading fromDirectory and replaces with the toDirectory.
 */
rebase( File f, File fromDirectory, File toDirectory ) {
    assert( f.getPath().startsWith(fromDirectory.getPath()) );
    String filePath = f.getPath().substring( fromDirectory.getPath().length() + 1 );
    return new File( toDirectory, filePath );
}

integrationTestProjects_source = new File( "src/test/resources/projects" );
integrationTestProjects_target = new File( "target/test-classes/projects" );

expectedDirectoryName = "expected";

walker = new DirectoryWalker() {
    FileFilter directoryFilter = new AndFileFilter();
    directoryFilter.addFileFilter( new NotFileFilter( new NameFileFilter(expectedDirectoryName) ) );
    directoryFilter.addFileFilter( new NotFileFilter( new NameFileFilter("src") ) );
    directoryFilter.addFileFilter( new NotFileFilter( new NameFileFilter("target") ) );
    directoryFilter.addFileFilter( new NotFileFilter( new NameFileFilter(".metadata") ) );
    directoryFilter.addFileFilter( new NotFileFilter( new NameFileFilter("WebContent") ) );
         
    boolean handleDirectory( File directory, int depth, Collection results ) {
        accepted = directoryFilter.accept( directory );
        if ( !accepted ) {
            return accepted;
        }
        
        project.log( "Checking directory = " + directory, project.MSG_DEBUG );
        expectedDirectory = new File( directory, expectedDirectoryName );
        
        for ( fileToCheck : generatedFiles ) {
            File generatedFile = new File( directory, fileToCheck );
            expectedFile = new File( expectedDirectory, fileToCheck );
            project.log( "  generatedFile (exists? " + generatedFile.exists() + ") = " + generatedFile, project.MSG_DEBUG );
            project.log( "  expectedFile  (exists? " + expectedFile.exists() + ") = " + expectedFile, project.MSG_DEBUG );
            if ( generatedFile.exists() && !expectedFile.exists() ) {
                project.log( "  ** generated file exists but no expected file exist to verify integration test", project.MSG_DEBUG );
                missingExpectedFiles = new ArrayList(2);
                missingExpectedFiles.add( generatedFile );
                missingExpectedFiles.add( expectedFile );
                results.add( missingExpectedFiles );
            }
        }

        return accepted;
    }   
    
    find( startDirectory ) {
        List results = new ArrayList();
        walk( startDirectory, results );
        return results;
    }
    
    checkDirectoryFilter() {
        assert( !directoryFilter.accept( new File( "target/test-classes/projects/project-rad-5/project-rad-2/src") ) );
        assert( !directoryFilter.accept( new File( "target/test-classes/projects/project-rad-5/project-rad-2/expected") ) );
        assert( !directoryFilter.accept( new File( "target/test-classes/projects/project-rad-5/project-rad-2/target") ) );
        assert( directoryFilter.accept( new File( "target/test-classes/projects/project-rad-8/src/main/webapp") ) );
    }

};
walker.checkDirectoryFilter();
project.log( "Checking for generated files that do not have an integration test file to verify against...", project.MSG_INFO );
missingExpectedFiles = walker.find( integrationTestProjects_target );
if ( missingExpectedFiles.isEmpty() ) {
    project.log( "Done.", project.MSG_INFO );
}
else {
    // The files are all in the target directory. In order to provide "seed" values need to rebase to src/test/resources
    for ( files : missingExpectedFiles ) {
        seedFile = files.get(0);
        destFile = rebase( files.get(1), integrationTestProjects_target, integrationTestProjects_source );
        project.log( "Seeding missing expected file from " + seedFile.getPath() + " to " + destFile.getPath(), project.MSG_INFO );
        FileUtils.copyFile( seedFile, destFile );
    }
    throw new BuildException( "Verify and fix seeded expected files before re-running integrations tests." );
}