/*

 * Copyright (c) 2014, 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.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * 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,

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 *

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/*

 * @test

 * @bug 8035063

 * @summary Tests decoding of String[] into Options.

 *

 * @build Wrapper

 * @run main Wrapper OptionDecoding

 */

import static util.OptionTestUtil.assertEquals;

import static util.OptionTestUtil.checkFilesFound;

import java.io.IOException;

import java.nio.file.Files;

import java.nio.file.Path;

import java.nio.file.Paths;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.Collections;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import com.sun.tools.sjavac.CopyFile;

import com.sun.tools.sjavac.Main;

import com.sun.tools.sjavac.Module;

import com.sun.tools.sjavac.Source;

import com.sun.tools.sjavac.options.Options;

import com.sun.tools.sjavac.options.SourceLocation;

public class OptionDecoding {

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

        testPaths();

        testDupPaths();

        testSourceLocations();

        testSimpleOptions();

        testServerConf();

        testSearchPaths();

        testTranslationRules();

    }

    // Test decoding of output paths

    static void testPaths() throws IOException {

        final String H = "headers";

        final String G = "gensrc";

        final String D = "dest";

        final String CMP = "srcRefList.txt";

        Options options = Options.parseArgs("-h", H, "-s", G, "-d", D,

                                            "--compare-found-sources", CMP);

        assertEquals(Paths.get(H).toAbsolutePath(), options.getHeaderDir());

        assertEquals(Paths.get(G).toAbsolutePath(), options.getGenSrcDir());

        assertEquals(Paths.get(D).toAbsolutePath(), options.getDestDir());

        assertEquals(Paths.get(CMP), options.getSourceReferenceList());

    }

    // Providing duplicate header / dest / gensrc paths should produce an error.

    static void testDupPaths() throws IOException {

        try {

            Options.parseArgs("-h", "dir1", "-h", "dir2");

            throw new RuntimeException("Duplicate header directories should fail.");

        } catch (IllegalArgumentException iae) {

            // Expected

        }

        try {

            Options.parseArgs("-s", "dir1", "-s", "dir2");

            throw new RuntimeException("Duplicate paths for generated sources should fail.");

        } catch (IllegalArgumentException iae) {

            // Expected

        }

        try {

            Options.parseArgs("-d", "dir1", "-d", "dir2");

            throw new RuntimeException("Duplicate destination directories should fail.");

        } catch (IllegalArgumentException iae) {

            // Expected

        }

    }

    // Test source locations and -x, -i, -xf, -if filters

    static void testSourceLocations() throws IOException {

        Path a1 = Paths.get("root/pkg1/ClassA1.java");

        Path a2 = Paths.get("root/pkg1/ClassA2.java");

        Path b1 = Paths.get("root/pkg1/pkg2/ClassB1.java");

        Path b2 = Paths.get("root/pkg1/pkg2/ClassB2.java");

        Path c1 = Paths.get("root/pkg3/ClassC1.java");

        Path c2 = Paths.get("root/pkg3/ClassC2.java");

        for (Path p : Arrays.asList(a1, a2, b1, b2, c1, c2)) {

            Files.createDirectories(p.getParent());

            Files.createFile(p);

        }

        // Test -if

        {

            Options options = Options.parseArgs("-if", "root/pkg1/ClassA1.java", "root");

            Map<String, Source> foundFiles = new HashMap<>();

            Main.findSourceFiles(options.getSources(), Collections.singleton(".java"), foundFiles,

                    new HashMap<String, Module>(), new Module("", ""), false, true);

            checkFilesFound(foundFiles.keySet(), a1);

        }

        // Test -i

        System.out.println("--------------------------- CHECKING -i ----------------");

        {

            Options options = Options.parseArgs("-i", "pkg1/*", "root");

            Map<String, Source> foundFiles = new HashMap<>();

            Main.findSourceFiles(options.getSources(), Collections.singleton(".java"), foundFiles,

                    new HashMap<String, Module>(), new Module("", ""), false, true);

            checkFilesFound(foundFiles.keySet(), a1, a2, b1, b2);

        }

        System.out.println("--------------------------------------------------------");

        // Test -xf

        {

            Options options = Options.parseArgs("-xf", "root/pkg1/ClassA1.java", "root");

            Map<String, Source> foundFiles = new HashMap<>();

            Main.findSourceFiles(options.getSources(), Collections.singleton(".java"), foundFiles,

                    new HashMap<String, Module>(), new Module("", ""), false, true);

            checkFilesFound(foundFiles.keySet(), a2, b1, b2, c1, c2);

        }

        // Test -x

        {

            Options options = Options.parseArgs("-i", "pkg1/*", "root");

            Map<String, Source> foundFiles = new HashMap<>();

            Main.findSourceFiles(options.getSources(), Collections.singleton(".java"), foundFiles,

                    new HashMap<String, Module>(), new Module("", ""), false, true);

            checkFilesFound(foundFiles.keySet(), a1, a2, b1, b2);

        }

        // Test -x and -i

        {

            Options options = Options.parseArgs("-i", "pkg1/*", "-x", "pkg1/pkg2/*", "root");

            Map<String, Source> foundFiles = new HashMap<>();

            Main.findSourceFiles(options.getSources(), Collections.singleton(".java"), foundFiles,

                    new HashMap<String, Module>(), new Module("", ""), false, true);

            checkFilesFound(foundFiles.keySet(), a1, a2);

        }

    }

    // Test basic options

    static void testSimpleOptions() {

        Options options = Options.parseArgs("-j", "17", "--log=debug");

        assertEquals(17, options.getNumCores());

        assertEquals("debug", options.getLogLevel());

        assertEquals(false, options.isDefaultPackagePermitted());

        assertEquals(false, options.isUnidentifiedArtifactPermitted());

        options = Options.parseArgs("--permit-unidentified-artifacts",

                                    "--permit-sources-without-package");

        assertEquals("info", options.getLogLevel());

        assertEquals(true, options.isDefaultPackagePermitted());

        assertEquals(true, options.isUnidentifiedArtifactPermitted());

    }

    // Test server configuration options

    static void testServerConf() {

        Options options = Options.parseArgs("--server:someServerConfiguration");

        assertEquals("someServerConfiguration", options.getServerConf());

        assertEquals(false, options.startServerFlag());

        options = Options.parseArgs("--startserver:someServerConfiguration");

        assertEquals("someServerConfiguration", options.getServerConf());

        assertEquals(true, options.startServerFlag());

    }

    // Test input paths

    static void testSearchPaths() {

        List<String> i, x, iF, xF;

        i = x = iF = xF = new ArrayList<>();

        SourceLocation dir1 = new SourceLocation(Paths.get("dir1"), i, x, iF, xF);

        SourceLocation dir2 = new SourceLocation(Paths.get("dir2"), i, x, iF, xF);

        Options options = Options.parseArgs("-sourcepath", "dir1:dir2");

        assertEquals(options.getSourceSearchPaths(), Arrays.asList(dir1, dir2));

        options = Options.parseArgs("-modulepath", "dir1:dir2");

        assertEquals(options.getModuleSearchPaths(), Arrays.asList(dir1, dir2));

        options = Options.parseArgs("-classpath", "dir1:dir2");

        assertEquals(options.getClassSearchPath(), Arrays.asList(dir1, dir2));

    }

    // Test -tr option

    static void testTranslationRules() {

        Class<?> cls = com.sun.tools.sjavac.CompileJavaPackages.class;

        Options options = Options.parseArgs(

                "-tr", ".exa=" + cls.getName(),

                "-tr", ".exb=" + cls.getName(),

                "-copy", ".html");

        assertEquals(cls, options.getTranslationRules().get(".exa").getClass());

        assertEquals(cls, options.getTranslationRules().get(".exb").getClass());

        assertEquals(CopyFile.class, options.getTranslationRules().get(".html").getClass());

    }

}