/*

 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

import java.io.File;

import java.io.IOException;

import java.io.UncheckedIOException;

import java.nio.file.Files;

import java.nio.file.Path;

import java.nio.file.Paths;

import java.util.ArrayList;

import java.util.Collections;

import java.util.HashMap;

import java.util.HashSet;

import java.util.List;

import java.util.Map;

import java.util.Set;

import jdk.tools.jlink.Jlink;

import jdk.tools.jlink.Jlink.JlinkConfiguration;

import jdk.tools.jlink.Jlink.PluginsConfiguration;

import jdk.tools.jlink.builder.DefaultImageBuilder;

import jdk.tools.jlink.plugin.ExecutableImage;

import jdk.tools.jlink.plugin.Pool;

import jdk.tools.jlink.plugin.PostProcessorPlugin;

import jdk.tools.jlink.plugin.TransformerPlugin;

import jdk.tools.jlink.internal.plugins.DefaultCompressPlugin;

import jdk.tools.jlink.internal.plugins.StripDebugPlugin;

import jdk.tools.jlink.plugin.Plugin;

import tests.Helper;

import tests.JImageGenerator;

/*

 * @test

 * @summary Test integration API

 * @author Jean-Francois Denise

 * @library ../lib

 * @modules java.base/jdk.internal.jimage

 *          jdk.jdeps/com.sun.tools.classfile

 *          jdk.jlink/jdk.tools.jlink.internal

 *          jdk.jlink/jdk.tools.jlink.internal.plugins

 *          jdk.jlink/jdk.tools.jmod

 *          jdk.jlink/jdk.tools.jimage

 *          jdk.compiler

 * @build tests.*

 * @run main IntegrationTest

 */

public class IntegrationTest {

    private static final List<Integer> ordered = new ArrayList<>();

    public static class MyPostProcessor implements PostProcessorPlugin {

        public static final String NAME = "mypostprocessor";

        @Override

        public List<String> process(ExecutableImage image) {

            try {

                Files.createFile(image.getHome().resolve("toto.txt"));

                return null;

            } catch (IOException ex) {

                throw new UncheckedIOException(ex);

            }

        }

        @Override

        public String getName() {

            return NAME;

        }

        @Override

        public Set<PluginType> getType() {

            Set<PluginType> set = new HashSet<>();

            set.add(CATEGORY.PROCESSOR);

            return Collections.unmodifiableSet(set);

        }

        @Override

        public void configure(Map<String, String> config) {

            throw new UnsupportedOperationException("Shouldn't be called");

        }

    }

    public static class MyPlugin1 implements TransformerPlugin {

        Integer index;

        Set<String> after;

        Set<String> before;

        private MyPlugin1(Integer index, Set<String> after, Set<String> before) {

            this.index = index;

            this.after = after;

            this.before = before;

        }

        @Override

        public Set<String> isAfter() {

            return after;

        }

        @Override

        public Set<String> isBefore() {

            return before;

        }

        @Override

        public String getName() {

            return NAME + index;

        }

        @Override

        public void visit(Pool in, Pool out) {

            System.err.println(NAME + index);

            ordered.add(index);

            in.visit((file) -> {

                return file;

            }, out);

        }

        @Override

        public Set<PluginType> getType() {

            Set<PluginType> set = new HashSet<>();

            set.add(CATEGORY.TRANSFORMER);

            return Collections.unmodifiableSet(set);

        }

        @Override

        public String getDescription() {

            return null;

        }

        @Override

        public String getOption() {

            return null;

        }

        static final String NAME = "myprovider";

        static final String INDEX = "INDEX";

        @Override

        public void configure(Map<String, String> config) {

            throw new UnsupportedOperationException("Shouldn't be called");

        }

    }

    public static void main(String[] args) throws Exception {

        Helper helper = Helper.newHelper();

        if (helper == null) {

            System.err.println("Test not run");

            return;

        }

        apitest();

        test();

        testOrder();

        testCycleOrder();

    }

    private static void apitest() throws Exception {

        boolean failed = false;

        Jlink jl = new Jlink();

        try {

            jl.build(null);

            failed = true;

        } catch (Exception ex) {

            // XXX OK

        }

        if (failed) {

            throw new Exception("Should have failed");

        }

        System.out.println(jl);

        JlinkConfiguration config

                = new JlinkConfiguration(null, null, null, null);

        System.out.println(config);

        Plugin p = Jlink.newPlugin("toto", Collections.emptyMap(), null);

        if (p != null) {

            throw new Exception("Plugin should be null");

        }

        Plugin p2 = Jlink.newPlugin("compress", Collections.emptyMap(), null);

        if (p2 == null) {

            throw new Exception("Plugin should not be null");

        }

    }

    private static void test() throws Exception {

        Jlink jlink = new Jlink();

        Path output = Paths.get("integrationout");

        List<Path> modulePaths = new ArrayList<>();

        File jmods

                = JImageGenerator.getJModsDir(new File(System.getProperty("test.jdk")));

        modulePaths.add(jmods.toPath());

        Set<String> mods = new HashSet<>();

        mods.add("java.management");

        Set<String> limits = new HashSet<>();

        limits.add("java.management");

        JlinkConfiguration config = new Jlink.JlinkConfiguration(output,

                modulePaths, mods, limits, null);

        List<Plugin> lst = new ArrayList<>();

        //Strip debug

        {

            Map<String, String> config1 = new HashMap<>();

            config1.put(StripDebugPlugin.NAME, "");

            Plugin strip = Jlink.newPlugin("strip-debug", config1, null);

            lst.add(strip);

        }

        // compress

        {

            Map<String, String> config1 = new HashMap<>();

            config1.put(DefaultCompressPlugin.NAME, "2");

            Plugin compress

                    = Jlink.newPlugin("compress", config1, null);

            lst.add(compress);

        }

        // Post processor

        {

            lst.add(new MyPostProcessor());

        }

        // Image builder

        PluginsConfiguration plugins

                = new Jlink.PluginsConfiguration(lst, builder, null);

        jlink.build(config, plugins);

        if (!Files.exists(output)) {

            throw new AssertionError("Directory not created");

        }

        File jimage = new File(output.toString(), "lib" + File.separator + "modules");

        if (!jimage.exists()) {

            throw new AssertionError("jimage not generated");

        }

        File release = new File(output.toString(), "release");

        if (!release.exists()) {

            throw new AssertionError("release not generated");

        }

        if (!Files.exists(output.resolve("toto.txt"))) {

            throw new AssertionError("Post processing not called");

        }

    }

    private static void testOrder() throws Exception {

        Jlink jlink = new Jlink();

        Path output = Paths.get("integrationout2");

        List<Path> modulePaths = new ArrayList<>();

        File jmods

                = JImageGenerator.getJModsDir(new File(System.getProperty("test.jdk")));

        modulePaths.add(jmods.toPath());

        Set<String> mods = new HashSet<>();

        mods.add("java.management");

        Set<String> limits = new HashSet<>();

        limits.add("java.management");

        JlinkConfiguration config = new Jlink.JlinkConfiguration(output,

                modulePaths, mods, limits, null);

        List<Plugin> lst = new ArrayList<>();

        // Order is Plug1>Plug2>Plug3

        // Plug1

        // TRANSFORMER 3, must be after 2.

        {

            Set<String> after = new HashSet<>();

            after.add(MyPlugin1.NAME+"2");

            lst.add(new MyPlugin1(3, after, Collections.emptySet()));

        }

        // TRANSFORMER 2, must be after 1.

        {

            Set<String> after = new HashSet<>();

            after.add(MyPlugin1.NAME+"1");

            lst.add(new MyPlugin1(2, after, Collections.emptySet()));

        }

        // TRANSFORMER 1

        {

            Set<String> before = new HashSet<>();

            before.add(MyPlugin1.NAME+"2");

            lst.add(new MyPlugin1(1, Collections.emptySet(), before));

        }

        // Image builder

        PluginsConfiguration plugins

                = new Jlink.PluginsConfiguration(lst, builder, null);

        jlink.build(config, plugins);

        if (ordered.isEmpty()) {

            throw new AssertionError("Plugins not called");

        }

        List<Integer> clone = new ArrayList<>();

        clone.addAll(ordered);

        Collections.sort(clone);

        if (!clone.equals(ordered)) {

            throw new AssertionError("Ordered is not properly sorted" + ordered);

        }

    }

    private static void testCycleOrder() throws Exception {

        Jlink jlink = new Jlink();

        Path output = Paths.get("integrationout3");

        List<Path> modulePaths = new ArrayList<>();

        File jmods

                = JImageGenerator.getJModsDir(new File(System.getProperty("test.jdk")));

        modulePaths.add(jmods.toPath());

        Set<String> mods = new HashSet<>();

        mods.add("java.management");

        Set<String> limits = new HashSet<>();

        limits.add("java.management");

        JlinkConfiguration config = new Jlink.JlinkConfiguration(output,

                modulePaths, mods, limits, null);

        List<Plugin> lst = new ArrayList<>();

        // packager 1

        {

            Set<String> before = new HashSet<>();

            before.add(MyPlugin1.NAME+"2");

            lst.add(new MyPlugin1(1, Collections.emptySet(), before));

        }

        // packager 2

        {

            Set<String> before = new HashSet<>();

            before.add(MyPlugin1.NAME+"1");

            lst.add(new MyPlugin1(2, Collections.emptySet(), before));

        }

        // Image builder

        PluginsConfiguration plugins

                = new Jlink.PluginsConfiguration(lst, builder, null);

        boolean failed = false;

        try {

            jlink.build(config, plugins);

            failed = true;

        } catch (Exception ex) {

            // XXX OK

        }

        if (failed) {

            throw new AssertionError("Should have failed");

        }

    }

}