/*

 * Copyright (c) 2007, 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.

 */

import java.io.*;

import java.util.*;

import java.util.regex.*;

public class PropertiesTest {

    public static void main(String[] s) {

        for (int i = 0; i < s.length; i ++) {

            if ("-d".equals(s[i])) {

                i++;

                if (i == s.length) {

                    throw new RuntimeException("-d needs output file name");

                } else {

                    dump(s[i]);

                }

            } else if ("-c".equals(s[i])) {

                if (i+2 == s.length) {

                    throw new RuntimeException("-d needs two file name arguments, before and after respectively");

                } else {

                    compare(s[++i], s[++i]);

                }

            }

        }

    }

    private static void dump(String outfile) {

        File f = new File(outfile);

        PrintWriter pw;

        try {

            f.createNewFile();

            pw = new PrintWriter(f);

        } catch (Exception fnfe) {

            throw new RuntimeException(fnfe);

        }

        for (char c1 = 'A'; c1 <= 'Z'; c1++) {

            for (char c2 = 'A'; c2 <= 'Z'; c2++) {

                String ctry = new StringBuilder().append(c1).append(c2).toString();

                try {

                    Currency c = Currency.getInstance(new Locale("", ctry));

                    if (c != null) {

                        pw.printf(Locale.ROOT, "%s=%s,%03d,%1d\n",

                            ctry,

                            c.getCurrencyCode(),

                            c.getNumericCode(),

                            c.getDefaultFractionDigits());

                    }

                } catch (IllegalArgumentException iae) {

                    // invalid country code

                    continue;

                }

            }

        }

        pw.flush();

        pw.close();

    }

    private static void compare(String beforeFile, String afterFile) {

        // load file contents

        Properties before = new Properties();

        Properties after = new Properties();

        try {

            before.load(new FileReader(beforeFile));

            after.load(new FileReader(afterFile));

        } catch (IOException ioe) {

            throw new RuntimeException(ioe);

        }

        // remove the same contents from the 'after' properties

        Set<String> keys = before.stringPropertyNames();

        for (String key: keys) {

            String beforeVal = before.getProperty(key);

            String afterVal = after.getProperty(key);

            System.out.printf("Removing country: %s. before: %s, after: %s", key, beforeVal, afterVal);

            if (beforeVal.equals(afterVal)) {

                after.remove(key);

                System.out.printf(" --- removed\n");

            } else {

                System.out.printf(" --- NOT removed\n");

            }

        }

        // now look at the currency.properties

        String propFileName = System.getProperty("java.home") + File.separator +

                              "lib" + File.separator + "currency.properties";

        Properties p = new Properties();

        try {

            p.load(new FileReader(propFileName));

        } catch (IOException ioe) {

            throw new RuntimeException(ioe);

        }

        // test each replacements

        keys = p.stringPropertyNames();

        Pattern propertiesPattern =

            Pattern.compile("([A-Z]{3})\\s*,\\s*(\\d{3})\\s*,\\s*([0-3])");

        for (String key: keys) {

            String val = p.getProperty(key);

            String afterVal = after.getProperty(key);

            System.out.printf("Testing key: %s, val: %s... ", key, val);

            Matcher m = propertiesPattern.matcher(val.toUpperCase(Locale.ROOT));

            if (!m.find()) {

                // format is not recognized.

                System.out.printf("Format is not recognized.\n");

                if (afterVal != null) {

                    throw new RuntimeException("Currency data replacement for "+key+" failed: It was incorrectly altered to "+afterVal);

                }

                // ignore this

                continue;

            }

            Matcher mAfter = propertiesPattern.matcher(afterVal);

            mAfter.find();

            String code = m.group(1);

            String codeAfter = mAfter.group(1);

            int numeric = Integer.parseInt(m.group(2));

            int numericAfter = Integer.parseInt(mAfter.group(2));

            int fraction = Integer.parseInt(m.group(3));

            int fractionAfter = Integer.parseInt(mAfter.group(3));

            if (code.equals(codeAfter) &&

                (numeric == numericAfter)&&

                (fraction == fractionAfter)) {

                after.remove(key);

            } else {

                throw new RuntimeException("Currency data replacement for "+key+" failed: actual: (alphacode: "+codeAfter+", numcode: "+numericAfter+", fraction: "+fractionAfter+"), expected:  (alphacode: "+code+", numcode: "+numeric+", fraction: "+fraction+")");

            }

            System.out.printf("Success!\n");

        }

        if (!after.isEmpty()) {

            StringBuilder sb = new StringBuilder()

                .append("Currency data replacement failed.  Unnecessary modification was(were) made for the following currencies:\n");

            keys = after.stringPropertyNames();

            for (String key : keys) {

                sb.append("    country: ")

                .append(key)

                .append(" currency: ")

                .append(after.getProperty(key))

                .append("\n");

            }

            throw new RuntimeException(sb.toString());

        }

    }

}