/*

 *  Copyright 2009-present, Stephen Colebourne

 *

 *  Licensed under the Apache License, Version 2.0 (the "License");

 *  you may not use this file except in compliance with the License.

 *  You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 *  Unless required by applicable law or agreed to in writing, software

 *  distributed under the License is distributed on an "AS IS" BASIS,

 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 *  See the License for the specific language governing permissions and

 *  limitations under the License.

 */

package org.joda.money.format;

import java.io.IOException;

import java.io.Serializable;

import java.util.Arrays;

import org.joda.money.BigMoney;

/**

 * Prints and parses multiple printers/parsers.

 * <p>

 * This class is immutable and thread-safe.

 */

final class MultiPrinterParser implements MoneyPrinter, MoneyParser, Serializable {

    /** Serialization version. */

    private static final long serialVersionUID = 1L;

    /**

     * The printers.

     */

    private final MoneyPrinter[] printers;

    /**

     * The parsers.

     */

    private final MoneyParser[] parsers;

    /**

     * Constructor.

     * @param printers  the printers, not null

     */

    MultiPrinterParser(MoneyPrinter[] printers, MoneyParser[] parsers) {

        this.printers = printers;

        this.parsers = parsers;

    }

    //-----------------------------------------------------------------------

    boolean isPrinter() {

        return !Arrays.asList(printers).contains(null);

    }

    boolean isParser() {

        return !Arrays.asList(parsers).contains(null);

    }

    void appendTo(MoneyFormatterBuilder builder) {

        for (var i = 0; i < printers.length; i++) {

            builder.append(printers[i], parsers[i]);

        }

    }

    //-----------------------------------------------------------------------

    @Override

    public void print(MoneyPrintContext context, Appendable appendable, BigMoney money) throws IOException {

        for (MoneyPrinter printer : printers) {

            printer.print(context, appendable, money);

        }

    }

    @Override

    public void parse(MoneyParseContext context) {

        for (MoneyParser parser : parsers) {

            parser.parse(context);

            if (context.isError()) {

                break;

            }

        }

    }

    @Override

    public String toString() {

        var buf1 = new StringBuilder();

        if (isPrinter()) {

            for (MoneyPrinter printer : printers) {

                buf1.append(printer.toString());

            }

        }

        var buf2 = new StringBuilder();

        if (isParser()) {

            for (MoneyParser parser : parsers) {

                buf2.append(parser.toString());

            }

        }

        var str1 = buf1.toString();

        var str2 = buf2.toString();

        if (isPrinter() && !isParser()) {

            return str1;

        } else if (isParser() && !isPrinter()) {

            return str2;

        } else if (str1.equals(str2)) {

            return str1;

        } else {

            return str1 + ":" + str2;

        }

    }

}