/*

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 * 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.

 *

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 */

/*

 * @test

 * @summary Test sorter plugin

 * @author Jean-Francois Denise

 * @modules jdk.jlink/jdk.tools.jlink.internal

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

 * @run main OrderResourcesPluginTest

 */

import java.io.File;

import java.nio.file.Files;

import java.util.Arrays;

import java.util.Collection;

import java.util.HashMap;

import java.util.Map;

import java.util.stream.Collectors;

import jdk.tools.jlink.internal.ModulePoolImpl;

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

import jdk.tools.jlink.plugin.ModuleEntry;

import jdk.tools.jlink.plugin.ModulePool;

import jdk.tools.jlink.plugin.TransformerPlugin;

public class OrderResourcesPluginTest {

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

        new OrderResourcesPluginTest().test();

    }

    public void test() throws Exception {

        ModuleEntry[] array = {

                ModuleEntry.create("/module1/toto1.class", new byte[0]),

                ModuleEntry.create("/module2/toto2.class", new byte[0]),

                ModuleEntry.create("/module3/toto3.class", new byte[0]),

                ModuleEntry.create("/module3/toto3/module-info.class", new byte[0]),

                ModuleEntry.create("/zazou/toto.class", new byte[0]),

                ModuleEntry.create("/module4/zazou.class", new byte[0]),

                ModuleEntry.create("/module5/toto5.class", new byte[0]),

                ModuleEntry.create("/module6/toto6/module-info.class", new byte[0])

        };

        ModuleEntry[] sorted = {

                ModuleEntry.create("/zazou/toto.class", new byte[0]),

                ModuleEntry.create("/module3/toto3/module-info.class", new byte[0]),

                ModuleEntry.create("/module6/toto6/module-info.class", new byte[0]),

                ModuleEntry.create("/module1/toto1.class", new byte[0]),

                ModuleEntry.create("/module2/toto2.class", new byte[0]),

                ModuleEntry.create("/module3/toto3.class", new byte[0]),

                ModuleEntry.create("/module4/zazou.class", new byte[0]),

                ModuleEntry.create("/module5/toto5.class", new byte[0])

        };

        ModuleEntry[] sorted2 = {

            ModuleEntry.create("/module5/toto5.class", new byte[0]),

            ModuleEntry.create("/module6/toto6/module-info.class", new byte[0]),

            ModuleEntry.create("/module4/zazou.class", new byte[0]),

            ModuleEntry.create("/module3/toto3.class", new byte[0]),

            ModuleEntry.create("/module3/toto3/module-info.class", new byte[0]),

            ModuleEntry.create("/module1/toto1.class", new byte[0]),

            ModuleEntry.create("/module2/toto2.class", new byte[0]),

            ModuleEntry.create("/zazou/toto.class", new byte[0])

        };

        ModulePool resources = new ModulePoolImpl();

        for (ModuleEntry r : array) {

            resources.add(r);

        }

        {

            ModulePool out = new ModulePoolImpl();

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

            TransformerPlugin p = new OrderResourcesPlugin();

            p.configure(config);

            p.visit(resources, out);

            check(out.entries().collect(Collectors.toList()), sorted);

        }

        {

            // Order of resources in the file, then un-ordered resources.

            File order = new File("resources.order");

            order.createNewFile();

            StringBuilder builder = new StringBuilder();

            // 5 first resources come from file

            for (int i = 0; i < 5; i++) {

                String path = sorted2[i].getPath();

                int index = path.indexOf('/', 1);

                path = path.substring(index + 1, path.length() - ".class".length());

                builder.append(path).append("\n");

            }

            Files.write(order.toPath(), builder.toString().getBytes());

            ModulePool out = new ModulePoolImpl();

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

            config.put(OrderResourcesPlugin.NAME, "@" + order.getAbsolutePath());

            TransformerPlugin p = new OrderResourcesPlugin();

            p.configure(config);

            p.visit(resources, out);

            check(out.entries().collect(Collectors.toList()), sorted2);

        }

    }

    private void check(Collection<ModuleEntry> outResources,

            ModuleEntry[] sorted) {

        if (outResources.size() != sorted.length) {

            throw new AssertionError("Wrong number of resources:\n"

                    + "expected: " + Arrays.toString(sorted) + ",\n"

                    + "     got: " + outResources);

        }

        int i = 0;

        for (ModuleEntry r : outResources) {

            System.err.println("Resource: " + r);

            if (!sorted[i].getPath().equals(r.getPath())) {

                throw new AssertionError("Resource not properly sorted, difference at: " + i + "\n"

                        + "expected: " + Arrays.toString(sorted) + ",\n"

                        + "     got: " + outResources);

            }

            i++;

        }

    }

}