/*

 * Copyright (c) 2002, 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.

 *

 * 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.

 */

/*

 * @test

 * @bug 4510979

 * @summary Test to make sure that the source documentation is indented properly

 * when -linksourcetab is used.

 * @author jamieh

 * @library ../lib/

 * @build JavadocTester

 * @build TestSourceTab

 * @run main TestSourceTab

 */

import java.io.*;

public class TestSourceTab extends JavadocTester {

    private static final String TMP_SRC_DIR = "tmpSrc";

    //Run Javadoc on a source file with that is indented with a single tab per line

    private static final String[] ARGS1 =

        new String[] {

            "-d", OUTPUT_DIR1, "-sourcepath", TMP_SRC_DIR,

            "-notimestamp", "-linksource", TMP_SRC_DIR + "/SingleTab/C.java"

        };

    //Run Javadoc on a source file with that is indented with a two tab per line

    //If we double the tabs and decrease the tab length by a half, the output should

    //be the same as the one generated above.

    private static final String[] ARGS2 =

        new String[] {

            "-d", OUTPUT_DIR2, "-sourcepath", TMP_SRC_DIR,

            "-notimestamp", "-sourcetab", "4", TMP_SRC_DIR + "/DoubleTab/C.java"

        };

    //Files to diff

    };

    /**

     * The entry point of the test.

     * @param args the array of command line arguments.

     */

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

        TestSourceTab tester = new TestSourceTab();

        tester.run(ARGS1, NO_TEST, NO_TEST);

        tester.run(ARGS2, NO_TEST, NO_TEST);

    }

    TestSourceTab() throws IOException {

        initTabs(new File(SRC_DIR), new File(TMP_SRC_DIR));

    }

    void initTabs(File from, File to) throws IOException {

        for (File f: from.listFiles()) {

            File t = new File(to, f.getName());

            if (f.isDirectory()) {

                initTabs(f, t);

            } else if (f.getName().endsWith(".java")) {

                write(t, read(f).replace("\\t", "\t"));

            }

        }

    }

    String read(File f) throws IOException {

        StringBuilder sb = new StringBuilder();

        BufferedReader in = new BufferedReader(new FileReader(f));

        try {

            String line;

            while ((line = in.readLine()) != null) {

                sb.append(line);

                sb.append("\n");

            }

        } finally {

            in.close();

        }

        return sb.toString();

    }

    void write(File f, String s) throws IOException {

        f.getParentFile().mkdirs();

        Writer out = new FileWriter(f);

        try {

            out.write(s);

        } finally {

            out.close();

        }

    }

}