/*

 * 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

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 */

import java.io.IOException;

import java.io.PrintWriter;

import java.io.StringWriter;

import java.lang.module.ModuleDescriptor;

import java.lang.reflect.Layer;

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.List;

import java.util.stream.Stream;

import jdk.tools.jlink.plugin.Plugin;

import jdk.tools.jlink.internal.PluginRepository;

import tests.Helper;

import tests.JImageGenerator;

import tests.JImageGenerator.InMemoryFile;

/*

 * @test

 * @summary Test image creation

 * @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.jmod

 *          jdk.jlink/jdk.tools.jimage

 *          jdk.compiler

 * @build tests.*

 * @run main/othervm -Xmx1g JLinkTest

 */

public class JLinkTest {

    // number of built-in plugins from jdk.jlink module

    private static int getNumJlinkPlugins() {

        ModuleDescriptor desc = Plugin.class.getModule().getDescriptor();

        return desc.provides().

                    get(Plugin.class.getName()).

                    providers().size();

    }

    private static boolean isOfJLinkModule(Plugin p) {

        return p.getClass().getModule() == Plugin.class.getModule();

    }

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

        Helper helper = Helper.newHelper();

        if (helper == null) {

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

            return;

        }

        helper.generateDefaultModules();

        // expected num. of plugins from jdk.jlink module

        int expectedJLinkPlugins = getNumJlinkPlugins();

        int totalPlugins = 0;

        {

            // number of built-in plugins

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

            builtInPlugins.addAll(PluginRepository.getPlugins(Layer.boot()));

            totalPlugins = builtInPlugins.size();

            // actual num. of plugins loaded from jdk.jlink module

            int actualJLinkPlugins = 0;

            for (Plugin p : builtInPlugins) {

                p.getState();

                p.getType();

                if (isOfJLinkModule(p)) {

                    actualJLinkPlugins++;

                }

            }

            if (expectedJLinkPlugins != actualJLinkPlugins) {

                throw new AssertionError("Actual plugins loaded from jdk.jlink: " +

                        actualJLinkPlugins + " which doesn't match expected number : " +

                        expectedJLinkPlugins);

            }

        }

        {

            String moduleName = "bug8134651";

            JImageGenerator.getJLinkTask()

                    .modulePath(helper.defaultModulePath())

                    .output(helper.createNewImageDir(moduleName))

                    .addMods("leaf1")

                    .option("")

                    .call().assertSuccess();

            JImageGenerator.getJLinkTask()

                    .modulePath(helper.defaultModulePath())

                    .addMods("leaf1")

                    .option("--output")

                    .option("")

                    .call().assertFailure("Error: no value given for --output");

            JImageGenerator.getJLinkTask()

                    .modulePath("")

                    .output(helper.createNewImageDir(moduleName))

                    .addMods("leaf1")

                    .option("")

                    .call().assertFailure("Error: no value given for --module-path");

        }

        {

            String moduleName = "m"; // 8163382

            Path jmod = helper.generateDefaultJModule(moduleName).assertSuccess();

            JImageGenerator.getJLinkTask()

                    .modulePath(helper.defaultModulePath())

                    .output(helper.createNewImageDir(moduleName))

                    .addMods("m")

                    .option("")

                    .call().assertSuccess();

            moduleName = "mod";

            jmod = helper.generateDefaultJModule(moduleName).assertSuccess();

            JImageGenerator.getJLinkTask()

                    .modulePath(helper.defaultModulePath())

                    .output(helper.createNewImageDir(moduleName))

                    .addMods("m")

                    .option("")

                    .call().assertSuccess();

        }

        {

            String moduleName = "m_8165735"; // JDK-8165735

            helper.generateDefaultJModule(moduleName+"dependency").assertSuccess();

            Path jmod = helper.generateDefaultJModule(moduleName, moduleName+"dependency").assertSuccess();

            JImageGenerator.getJLinkTask()

                    .modulePath(helper.defaultModulePath())

                    .repeatedModulePath(".") // second --module-path overrides the first one

                    .output(helper.createNewImageDir(moduleName))

                    .addMods(moduleName)

                    // second --module-path does not have that module

                    .call().assertFailure("Error: Module m_8165735 not found");

            JImageGenerator.getJLinkTask()

                    .modulePath(".") // first --module-path overridden later

                    .repeatedModulePath(helper.defaultModulePath())

                    .output(helper.createNewImageDir(moduleName))

                    .addMods(moduleName)

                    // second --module-path has that module

                    .call().assertSuccess();

            JImageGenerator.getJLinkTask()

                    .modulePath(helper.defaultModulePath())

                    .output(helper.createNewImageDir(moduleName))

                    .limitMods(moduleName)

                    .repeatedLimitMods("java.base") // second --limit-modules overrides first

                    .addMods(moduleName)

                    .call().assertFailure("Error: Module m_8165735dependency not found, required by m_8165735");

            JImageGenerator.getJLinkTask()

                    .modulePath(helper.defaultModulePath())

                    .output(helper.createNewImageDir(moduleName))

                    .limitMods("java.base")

                    .repeatedLimitMods(moduleName) // second --limit-modules overrides first

                    .addMods(moduleName)

                    .call().assertSuccess();

        }

        {

            // Help

            StringWriter writer = new StringWriter();

            jdk.tools.jlink.internal.Main.run(new String[]{"--help"}, new PrintWriter(writer));

            String output = writer.toString();

            if (output.split("\n").length < 10) {

                System.err.println(output);

                throw new AssertionError("Help");

            }

        }

        {

            // License files

            String copied = "LICENSE";

            String[] arr = copied.split(",");

            String[] copyFiles = new String[2];

            copyFiles[0] = "--copy-files";

            copyFiles[1] = copied;

            Path imageDir = helper.generateDefaultImage(copyFiles, "composite2").assertSuccess();

            helper.checkImage(imageDir, "composite2", null, null, arr);

        }

        {

            // List plugins

            StringWriter writer = new StringWriter();

            jdk.tools.jlink.internal.Main.run(new String[]{"--list-plugins"}, new PrintWriter(writer));

            String output = writer.toString();

            long number = Stream.of(output.split("\\R"))

                    .filter((s) -> s.matches("Plugin Name:.*"))

                    .count();

            if (number != totalPlugins) {

                System.err.println(output);

                throw new AssertionError("Found: " + number + " expected " + totalPlugins);

            }

        }

        // filter out files and resources + Skip debug + compress

        {

            String[] userOptions = {"--compress", "2", "--strip-debug",

                "--exclude-resources", "*.jcov, */META-INF/*", "--exclude-files",

                "*" + Helper.getDebugSymbolsExtension()};

            String moduleName = "excludezipskipdebugcomposite2";

            helper.generateDefaultJModule(moduleName, "composite2");

            String[] res = {".jcov", "/META-INF/"};

            String[] files = {Helper.getDebugSymbolsExtension()};

            Path imageDir = helper.generateDefaultImage(userOptions, moduleName).assertSuccess();

            helper.checkImage(imageDir, moduleName, res, files);

        }

        // filter out + Skip debug + compress with filter + sort resources

        {

            String[] userOptions2 = {"--compress=2:compress-filter=^/java.base/*",

                "--strip-debug", "--exclude-resources",

                "*.jcov, */META-INF/*", "--order-resources",

                "*/module-info.class,/sortcomposite2/*,*/javax/management/*"};

            String moduleName = "excludezipfilterskipdebugcomposite2";

            helper.generateDefaultJModule(moduleName, "composite2");

            String[] res = {".jcov", "/META-INF/"};

            Path imageDir = helper.generateDefaultImage(userOptions2, moduleName).assertSuccess();

            helper.checkImage(imageDir, moduleName, res, null);

        }

        // default compress

        {

            testCompress(helper, "compresscmdcomposite2", "--compress", "2");

        }

        {

            testCompress(helper, "compressfiltercmdcomposite2",

                    "--compress=2:filter=^/java.base/java/lang/*");

        }

        // compress 0

        {

            testCompress(helper, "compress0filtercmdcomposite2",

                    "--compress=0:filter=^/java.base/java/lang/*");

        }

        // compress 1

        {

            testCompress(helper, "compress1filtercmdcomposite2",

                    "--compress=1:filter=^/java.base/java/lang/*");

        }

        // compress 2

        {

            testCompress(helper, "compress2filtercmdcomposite2",

                    "--compress=2:filter=^/java.base/java/lang/*");

        }

        // invalid compress level

        {

            String[] userOptions = {"--compress", "invalid"};

            String moduleName = "invalidCompressLevel";

            helper.generateDefaultJModule(moduleName, "composite2");

            helper.generateDefaultImage(userOptions, moduleName).assertFailure("Error: Invalid compression level invalid");

        }

        // @file

        {

            Path path = Paths.get("embedded.properties");

            Files.write(path, Collections.singletonList("--strip-debug --add-modules " +

                    "toto.unknown --compress UNKNOWN\n"));

            String[] userOptions = {"@", path.toAbsolutePath().toString()};

            String moduleName = "configembeddednocompresscomposite2";

            helper.generateDefaultJModule(moduleName, "composite2");

            Path imageDir = helper.generateDefaultImage(userOptions, moduleName).assertSuccess();

            helper.checkImage(imageDir, moduleName, null, null);

        }

    }

    private static void testCompress(Helper helper, String moduleName, String... userOptions) throws IOException {

        helper.generateDefaultJModule(moduleName, "composite2");

        Path imageDir = helper.generateDefaultImage(userOptions, moduleName).assertSuccess();

        helper.checkImage(imageDir, moduleName, null, null);

    }

}