/*

 * 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 4691089 4819436 4942982 5104960 6544471 6627549

 * @summary Validate ISO 4217 data for Currency class.

 */

/*

 * ############################################################################

 *

 *  ValidateISO4217 is a tool to detect differences between the latest ISO 4217

 *  data and and Java's currency data which is based on ISO 4217.

 *  If there is a difference, the following file which includes currency data

 *  may need to be updated.

 *      src/share/classes/java/util/CurrencyData.properties

 *

 * ############################################################################

 *

 * 1) Make a golden-data file.

 *      From BSi's ISO4217 data (TABLE A1.doc), extract four (or eight, if currency is changing)

 *      fields and save as ./tablea1.txt.

 *        <Country code>\t<Currency code>\t<Numeric code>\t<Minor unit>[\t<Cutover Date>\t<new Currency code>\t<new Numeric code>\t<new Minor unit>]

 *      The Cutover Date is given in SimpleDateFormat's 'yyyy-MM-dd-HH-mm-ss' format in the GMT time zone.

 *

 * 2) Compile ValidateISO4217.java

 *

 * 3) Execute ValidateISO4217 as follows:

 *      java ValidateISO4217

 */

import java.io.*;

import java.text.*;

import java.util.*;

public class ValidateISO4217 {

    static final int ALPHA_NUM = 26;

    static final byte UNDEFINED = 0;

    static final byte DEFINED = 1;

    static final byte SKIPPED = 2;

    /* input files */

    static final String datafile = "tablea1.txt";

    /* alpha2-code table */

    static byte[] codes = new byte[ALPHA_NUM * ALPHA_NUM];

    static final String[][] additionalCodes = {

        /* Defined in ISO 4217 list, but don't have code and minor unit info. */

        {"AQ", "", "", "0"},    // Antarctica

        /*

         * Defined in ISO 4217 list, but don't have code and minor unit info in

         * it. On the othe hand, both code and minor unit are defined in

         * .properties file. I don't know why, though.

         */

        {"GS", "GBP", "826", "2"},      // South Georgia And The South Sandwich Islands

        /* Not defined in ISO 4217 list, but defined in .properties file. */

        {"AX", "EUR", "978", "2"},      // \u00c5LAND ISLANDS

        {"PS", "ILS", "376", "2"},      // Palestinian Territory, Occupied

        /* Not defined in ISO 4217 list, but added in ISO 3166 country code list */

        {"JE", "GBP", "826", "2"},      // Jersey

        {"GG", "GBP", "826", "2"},      // Guernsey

        {"IM", "GBP", "826", "2"},      // Isle of Man

        {"BL", "EUR", "978", "2"},      // Saint Barthelemy

        {"MF", "EUR", "978", "2"},      // Saint Martin

    };

    /* Codes that are obsolete, do not have related country */

    static final String otherCodes =

        "ADP-AFA-ATS-AYM-BEF-BGL-BOV-BYB-CLF-CYP-DEM-ESP-FIM-FRF-GRD-GWP-IEP-ITL-LUF-MGF-MTL-MXV-NLG-PTE-RUR-SDD-SIT-SRG-TPE-TRL-VEF-USN-USS-XAG-XAU-XBA-XBB-XBC-XBD-XDR-XFO-XFU-XPD-XPT-XTS-XXX-YUM-ZWN";

    static boolean err = false;

    static Set<Currency> testCurrencies = new HashSet<Currency>();

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

        CheckDataVersion.check();

        test1();

        test2();

        getAvailableCurrenciesTest();

        if (err) {

            throw new RuntimeException("Failed: Validation ISO 4217 data");

        }

    }

    static void test1() throws Exception {

        try (FileReader fr = new FileReader(new File(System.getProperty("test.src", "."), datafile));

             BufferedReader in = new BufferedReader(fr))

        {

            String line;

            SimpleDateFormat format = null;

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

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

                    continue;

                }

                StringTokenizer tokens = new StringTokenizer(line, "\t");

                String country = tokens.nextToken();

                if (country.length() != 2) {

                    continue;

                }

                String currency;

                String numeric;

                String minorUnit;

                int tokensCount = tokens.countTokens();

                if (tokensCount < 3) {

                    currency = "";

                    numeric = "0";

                    minorUnit = "0";

                } else {

                    currency = tokens.nextToken();

                    numeric = tokens.nextToken();

                    minorUnit = tokens.nextToken();

                    testCurrencies.add(Currency.getInstance(currency));

                    // check for the cutover

                    if (tokensCount > 3) {

                        if (format == null) {

                            format = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss", Locale.US);

                            format.setTimeZone(TimeZone.getTimeZone("GMT"));

                            format.setLenient(false);

                        }

                        if (format.parse(tokens.nextToken()).getTime() <

                            System.currentTimeMillis()) {

                            currency = tokens.nextToken();

                            numeric = tokens.nextToken();

                            minorUnit = tokens.nextToken();

                            testCurrencies.add(Currency.getInstance(currency));

                        }

                    }

                }

                int index = toIndex(country);

                testCountryCurrency(country, currency, Integer.parseInt(numeric),

                    Integer.parseInt(minorUnit), index);

            }

        }

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

            int index = toIndex(additionalCodes[i][0]);

            if (additionalCodes[i][1].length() != 0) {

                testCountryCurrency(additionalCodes[i][0], additionalCodes[i][1],

                    Integer.parseInt(additionalCodes[i][2]),

                    Integer.parseInt(additionalCodes[i][3]), index);

                testCurrencies.add(Currency.getInstance(additionalCodes[i][1]));

            } else {

                codes[index] = SKIPPED;

            }

        }

    }

    static int toIndex(String s) {

        return ((s.charAt(0) - 'A') * ALPHA_NUM + s.charAt(1) - 'A');

    }

    static void testCountryCurrency(String country, String currencyCode,

                                int numericCode, int digits, int index) {

        if (currencyCode.length() == 0) {

            return;

        }

        testCurrencyDefined(currencyCode, numericCode, digits);

        Locale loc = new Locale("", country);

        try {

            Currency currency = Currency.getInstance(loc);

            if (!currency.getCurrencyCode().equals(currencyCode)) {

                System.err.println("Error: [" + country + ":" +

                    loc.getDisplayCountry() + "] expected: " + currencyCode +

                    ", got: " + currency.getCurrencyCode());

                err = true;

            }

            if (codes[index] != UNDEFINED) {

                System.out.println("Warning: [" + country + ":" +

                    loc.getDisplayCountry() +

                    "] multiple definitions. currency code=" + currencyCode);

            }

            codes[index] = DEFINED;

        }

        catch (Exception e) {

            System.err.println("Error: " + e + ": Country=" + country);

            err = true;

        }

    }

    static void testCurrencyDefined(String currencyCode, int numericCode, int digits) {

        try {

            Currency currency = currency = Currency.getInstance(currencyCode);

            if (currency.getNumericCode() != numericCode) {

                System.err.println("Error: [" + currencyCode + "] expected: " +

                    numericCode + "; got: " + currency.getNumericCode());

                err = true;

            }

            if (currency.getDefaultFractionDigits() != digits) {

                System.err.println("Error: [" + currencyCode + "] expected: " +

                    digits + "; got: " + currency.getDefaultFractionDigits());

                err = true;

            }

        }

        catch (Exception e) {

            System.err.println("Error: " + e + ": Currency code=" +

                currencyCode);

            err = true;

        }

    }

    static void test2() {

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

            for (int j = 0; j < ALPHA_NUM; j++) {

                char[] code = new char[2];

                code[0] = (char)('A'+ i);

                code[1] = (char)('A'+ j);

                String country = new String(code);

                boolean ex;

                if (codes[toIndex(country)] == UNDEFINED) {

                    ex = false;

                    try {

                        Currency.getInstance(new Locale("", country));

                    }

                    catch (IllegalArgumentException e) {

                        ex = true;

                    }

                    if (!ex) {

                        System.err.println("Error: This should be an undefined code and throw IllegalArgumentException: " +

                            country);

                        err = true;

                    }

                } else if (codes[toIndex(country)] == SKIPPED) {

                    Currency cur = null;

                    try {

                        cur = Currency.getInstance(new Locale("", country));

                    }

                    catch (Exception e) {

                        System.err.println("Error: " + e + ": Country=" +

                            country);

                        err = true;

                    }

                    if (cur != null) {

                        System.err.println("Error: Currency.getInstance() for an this locale should return null: " +

                            country);

                        err = true;

                    }

                }

            }

        }

    }

    /**

     * This test depends on test1(), where 'testCurrencies' set is constructed

     */

    static void getAvailableCurrenciesTest() {

        Set<Currency> jreCurrencies = Currency.getAvailableCurrencies();

        // add otherCodes

        StringTokenizer st = new StringTokenizer(otherCodes, "-");

        while (st.hasMoreTokens()) {

            testCurrencies.add(Currency.getInstance(st.nextToken()));

        }

        if (!testCurrencies.containsAll(jreCurrencies)) {

            System.err.print("Error: getAvailableCurrencies() returned extra currencies than expected: ");

            jreCurrencies.removeAll(testCurrencies);

            for (Currency c : jreCurrencies) {

                System.err.print(" "+c);

            }

            System.err.println();

            err = true;

        }

    }

}