/*
 * 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.
 */
package org.apache.maven.script.ant;

import java.io.File;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.maven.artifact.Artifact;
import org.apache.maven.artifact.DependencyResolutionRequiredException;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.ContextEnabled;
import org.apache.maven.plugin.MojoExecution;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.PluginParameterExpressionEvaluator;
import org.apache.maven.plugin.descriptor.PluginDescriptor;
import org.apache.maven.project.MavenProject;
import org.apache.maven.project.path.PathTranslator;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.PropertyHelper;
import org.apache.tools.ant.types.Path;
import org.codehaus.plexus.archiver.ArchiverException;
import org.codehaus.plexus.archiver.zip.ZipUnArchiver;
import org.codehaus.plexus.component.MapOrientedComponent;
import org.codehaus.plexus.component.configurator.ComponentConfigurationException;
import org.codehaus.plexus.component.configurator.expression.ExpressionEvaluator;
import org.codehaus.plexus.component.factory.ant.AntComponentExecutionException;
import org.codehaus.plexus.component.factory.ant.AntScriptInvoker;
import org.codehaus.plexus.component.repository.ComponentRequirement;
import org.codehaus.plexus.logging.LogEnabled;
import org.codehaus.plexus.logging.Logger;
import org.codehaus.plexus.util.StringUtils;

/**
 *
 * @deprecated Scripting support for mojos is deprecated and is planned tp be removed in maven 4.0
 */
@Deprecated
public class AntMojoWrapper extends AbstractMojo implements ContextEnabled, MapOrientedComponent, LogEnabled {

    private Map<String, Object> pluginContext;

    private final AntScriptInvoker scriptInvoker;

    private Project antProject;

    private MavenProject mavenProject;

    private MojoExecution mojoExecution;

    private MavenSession session;

    private PathTranslator pathTranslator;

    private Logger logger;

    private transient List<String> unconstructedParts = new ArrayList<>();

    public AntMojoWrapper(AntScriptInvoker scriptInvoker) {
        this.scriptInvoker = scriptInvoker;
    }

    public void execute() throws MojoExecutionException {
        if (antProject == null) {
            antProject = scriptInvoker.getProject();
        }

        Map<String, Object> allConfig = new HashMap<>();
        if (pluginContext != null && !pluginContext.isEmpty()) {
            allConfig.putAll(pluginContext);
        }

        @SuppressWarnings("unchecked")
        Map<String, PathTranslator> refs = scriptInvoker.getReferences();
        if (refs != null) {
            allConfig.putAll(refs);

            for (Map.Entry<String, PathTranslator> entry : refs.entrySet()) {
                if (entry.getKey().startsWith(PathTranslator.class.getName())) {
                    pathTranslator = entry.getValue();
                }
            }
        }

        mavenProject = (MavenProject) allConfig.get("project");

        mojoExecution = (MojoExecution) allConfig.get("mojoExecution");

        session = (MavenSession) allConfig.get("session");

        unpackFileBasedResources();

        addClasspathReferences();

        if (logger.isDebugEnabled() && !unconstructedParts.isEmpty()) {
            StringBuilder buffer = new StringBuilder();

            buffer.append("The following standard Maven Ant-mojo support objects could not be created:\n\n");

            for (String part : unconstructedParts) {
                buffer.append("\n-  ").append(part);
            }

            buffer.append(
                    "\n\nMaven project, session, mojo-execution, or path-translation parameter " + "information is ");
            buffer.append("\nmissing from this mojo's plugin descriptor.");
            buffer.append("\n\nPerhaps this Ant-based mojo depends on maven-script-ant < 2.1.0, ");
            buffer.append("or used maven-plugin-tools-ant < 2.2 during release?\n\n");

            logger.debug(buffer.toString());
        }

        try {
            scriptInvoker.invoke();
        } catch (AntComponentExecutionException e) {
            throw new MojoExecutionException("Failed to execute: " + e.getMessage(), e);
        }

        unconstructedParts.clear();
    }

    public void setPluginContext(Map pluginContext) {
        this.pluginContext = pluginContext;
    }

    public Map getPluginContext() {
        return pluginContext;
    }

    public void addComponentRequirement(ComponentRequirement requirementDescriptor, Object requirementValue)
            throws ComponentConfigurationException {
        scriptInvoker.addComponentRequirement(requirementDescriptor, requirementValue);
    }

    public void setComponentConfiguration(Map componentConfiguration) throws ComponentConfigurationException {
        scriptInvoker.setComponentConfiguration(componentConfiguration);
        antProject = scriptInvoker.getProject();
    }

    private void unpackFileBasedResources() throws MojoExecutionException {
        if (mojoExecution == null || mavenProject == null) {
            unconstructedParts.add("Unpacked Ant build scripts (in Maven build directory).");

            return;
        }

        // What we need to write out any resources in the plugin to the target directory of the
        // mavenProject using the Ant-based plugin:
        //
        // 1. Need a reference to the plugin JAR itself
        // 2. Need a reference to the ${basedir} of the mavenProject

        PluginDescriptor pluginDescriptor = mojoExecution.getMojoDescriptor().getPluginDescriptor();

        File pluginJar = pluginDescriptor.getPluginArtifact().getFile();

        String resourcesPath = pluginDescriptor.getArtifactId();

        File outputDirectory = new File(mavenProject.getBuild().getDirectory());

        try {
            ZipUnArchiver ua = new ZipUnArchiver(pluginJar);

            ua.extract(resourcesPath, outputDirectory);
        } catch (ArchiverException e) {
            throw new MojoExecutionException("Error extracting resources from your Ant-based plugin.", e);
        }
    }

    private void addClasspathReferences() throws MojoExecutionException {
        try {
            if (mavenProject != null && session != null && pathTranslator != null) {
                ExpressionEvaluator exprEvaluator = new PluginParameterExpressionEvaluator(session, mojoExecution);

                PropertyHelper propertyHelper = PropertyHelper.getPropertyHelper(antProject);
                propertyHelper.setNext(new AntPropertyHelper(exprEvaluator, mavenProject.getArtifacts(), getLog()));
            } else {
                unconstructedParts.add("Maven parameter expression evaluator for Ant properties.");
            }

            @SuppressWarnings("unchecked")
            Map<String, Object> references = scriptInvoker.getReferences();

            if (mavenProject != null) {

                // Compile classpath
                Path p = new Path(antProject);

                p.setPath(StringUtils.join(
                        mavenProject.getCompileClasspathElements().iterator(), File.pathSeparator));

                /* maven.dependency.classpath it's deprecated as it's equal to maven.compile.classpath */
                references.put("maven.dependency.classpath", p);
                antProject.addReference("maven.dependency.classpath", p);

                references.put("maven.compile.classpath", p);
                antProject.addReference("maven.compile.classpath", p);

                // Runtime classpath
                p = new Path(antProject);

                p.setPath(StringUtils.join(
                        mavenProject.getRuntimeClasspathElements().iterator(), File.pathSeparator));

                references.put("maven.runtime.classpath", p);
                antProject.addReference("maven.runtime.classpath", p);

                // Test classpath
                p = new Path(antProject);

                p.setPath(
                        StringUtils.join(mavenProject.getTestClasspathElements().iterator(), File.pathSeparator));

                references.put("maven.test.classpath", p);
                antProject.addReference("maven.test.classpath", p);

            } else {
                unconstructedParts.add("Maven standard project-based classpath references.");
            }

            if (mojoExecution != null) {
                // Plugin dependency classpath
                Path p = getPathFromArtifacts(
                        mojoExecution.getMojoDescriptor().getPluginDescriptor().getArtifacts(), antProject);

                references.put("maven.plugin.classpath", p);
                antProject.addReference("maven.plugin.classpath", p);
            } else {
                unconstructedParts.add("Maven standard plugin-based classpath references.");
            }
        } catch (DependencyResolutionRequiredException e) {
            throw new MojoExecutionException("Error creating classpath references for Ant-based plugin scripts.", e);
        }
    }

    public Path getPathFromArtifacts(Collection<Artifact> artifacts, Project antProject)
            throws DependencyResolutionRequiredException {
        List<String> list = new ArrayList<>(artifacts.size());

        for (Artifact a : artifacts) {
            File file = a.getFile();

            if (file == null) {
                throw new DependencyResolutionRequiredException(a);
            }

            list.add(file.getPath());
        }

        Path p = new Path(antProject);

        p.setPath(StringUtils.join(list.iterator(), File.pathSeparator));

        return p;
    }

    public Project getAntProject() {
        return antProject;
    }

    public void setAntProject(Project antProject) {
        this.antProject = antProject;
    }

    public MavenProject getMavenProject() {
        return mavenProject;
    }

    public void setMavenProject(MavenProject mavenProject) {
        this.mavenProject = mavenProject;
    }

    public MojoExecution getMojoExecution() {
        return mojoExecution;
    }

    public void setMojoExecution(MojoExecution mojoExecution) {
        this.mojoExecution = mojoExecution;
    }

    public MavenSession getSession() {
        return session;
    }

    public void setSession(MavenSession session) {
        this.session = session;
    }

    public PathTranslator getPathTranslator() {
        return pathTranslator;
    }

    public void setPathTranslator(PathTranslator pathTranslator) {
        this.pathTranslator = pathTranslator;
    }

    public AntScriptInvoker getScriptInvoker() {
        return scriptInvoker;
    }

    public void enableLogging(Logger logger) {
        this.logger = logger;
    }
}