/*

 * Copyright (c) 2010, 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.

 */

/**

 * @test

 * @bug 6945564 6959267 7033561 7070436 7198195 8032446 8072600

 * @summary  Check that the j.l.Character.UnicodeScript

 */

import java.io.*;

import java.util.*;

import java.util.regex.*;

import java.lang.Character.UnicodeScript;

public class CheckScript {

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

        File fScripts;

        File fAliases;

        if (args.length == 0) {

            fScripts = new File(System.getProperty("test.src", "."), "Scripts.txt");

            fAliases = new File(System.getProperty("test.src", "."), "PropertyValueAliases.txt");

        } else if (args.length == 2) {

            fScripts = new File(args[0]);

            fAliases = new File(args[1]);

        } else {

            System.out.println("java CharacterScript Scripts.txt PropertyValueAliases.txt");

            throw new RuntimeException("Datafile name should be specified.");

        }

        Matcher m = Pattern.compile("(\\p{XDigit}+)(?:\\.{2}(\\p{XDigit}+))?\\s+;\\s+(\\w+)\\s+#.*").matcher("");

        String line = null;

        HashMap<String,ArrayList<Integer>> scripts = new HashMap<>();

        try (BufferedReader sbfr = new BufferedReader(new FileReader(fScripts))) {

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

                if (line.length() <= 1 || line.charAt(0) == '#') {

                    continue;

                }

                m.reset(line);

                if (m.matches()) {

                    int start = Integer.parseInt(m.group(1), 16);

                    int end = (m.group(2)==null)?start

                                                :Integer.parseInt(m.group(2), 16);

                    String name = m.group(3).toLowerCase(Locale.ENGLISH);

                    ArrayList<Integer> ranges = scripts.get(name);

                    if (ranges == null) {

                        ranges = new ArrayList<Integer>();

                        scripts.put(name, ranges);

                    }

                    ranges.add(start);

                    ranges.add(end);

                }

            }

        }

        // check all defined ranges

        Integer[] ZEROSIZEARRAY = new Integer[0];

        for (String name : scripts.keySet()) {

            System.out.println("Checking " + name + "...");

            Integer[] ranges = scripts.get(name).toArray(ZEROSIZEARRAY);

            Character.UnicodeScript expected =

                Character.UnicodeScript.forName(name);

            int off = 0;

            while (off < ranges.length) {

                int start = ranges[off++];

                int end = ranges[off++];

                for (int cp = start; cp <= end; cp++) {

                    Character.UnicodeScript script =

                        Character.UnicodeScript.of(cp);

                    if (script != expected) {

                        throw new RuntimeException(

                            "UnicodeScript failed: cp=" +

                            Integer.toHexString(cp) +

                            ", of(cp)=<" + script + "> but <" +

                            expected + "> is expected");

                   }

                }

            }

        }

        // check all codepoints

        for (int cp = 0; cp < Character.MAX_CODE_POINT; cp++) {

            Character.UnicodeScript script = Character.UnicodeScript.of(cp);

            if (script == Character.UnicodeScript.UNKNOWN) {

                if (Character.getType(cp) != Character.UNASSIGNED &&

                    Character.getType(cp) != Character.SURROGATE &&

                    Character.getType(cp) != Character.PRIVATE_USE)

                    throw new RuntimeException(

                        "UnicodeScript failed: cp=" +

                        Integer.toHexString(cp) +

                        ", of(cp)=<" + script + "> but UNKNOWN is expected");

            } else {

                Integer[] ranges =

                    scripts.get(script.name().toLowerCase(Locale.ENGLISH))

                           .toArray(ZEROSIZEARRAY);

                int off = 0;

                boolean found = false;

                while (off < ranges.length) {

                    int start = ranges[off++];

                    int end = ranges[off++];

                    if (cp >= start && cp <= end)

                        found = true;

                }

                if (!found) {

                    throw new RuntimeException(

                        "UnicodeScript failed: cp=" +

                        Integer.toHexString(cp) +

                        ", of(cp)=<" + script +

                        "> but NOT in ranges of this script");

                }

            }

        }

        // check all aliases

        m = Pattern.compile("sc\\s*;\\s*(\\p{Alpha}{4})\\s*;\\s*([\\p{Alpha}|_]+)\\s*.*").matcher("");

        line = null;

        try (BufferedReader sbfr = new BufferedReader(new FileReader(fAliases))) {

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

                if (line.length() <= 1 || line.charAt(0) == '#') {

                    continue;

                }

                m.reset(line);

                if (m.matches()) {

                    String alias = m.group(1);

                    String name = m.group(2);

                    // HRKT -> Katakana_Or_Hiragana not supported

                    if ("HRKT".equals(alias.toUpperCase(Locale.ENGLISH)))

                        continue;

                    if (Character.UnicodeScript.forName(alias) !=

                        Character.UnicodeScript.forName(name)) {

                        throw new RuntimeException(

                            "UnicodeScript failed: alias<" + alias +

                            "> does not map to <" + name + ">");

                    }

                }

            }

        }

    }

}