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/*
 * ============LICENSE_START=======================================================
 * PNF-REGISTRATION-HANDLER
 * ================================================================================
 * Copyright (C) 2018 Nokia. All rights reserved.
 * ================================================================================
 * 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.
 * ============LICENSE_END=========================================================
 */
package org.onap.pnfsimulator.simulator.keywords;

import io.vavr.Tuple;
import io.vavr.Tuple1;
import io.vavr.match.annotation.Patterns;
import io.vavr.match.annotation.Unapply;
import java.util.Collections;
import java.util.List;
import java.util.regex.Pattern;
import lombok.Getter;
import lombok.Setter;
import lombok.val;

@Patterns
@Getter
@Setter
public class NonParameterKeyword extends Keyword {

    public static final int KEYWORD_NAME_GROUP = 2;

    private static final String KEYWORD_REGEX = new StringBuilder()
        .append(OPTIONAL.apply(NONLETTERS_REGEX))
        .append("#")
        .append(LETTERS_REGEX)
        .append("(?!\\()")
        .append(OPTIONAL.apply(NONLETTERS_REGEX))
        .toString();

    private NonParameterKeyword(String name, List<String> meaningfulParts) {
        super(name, meaningfulParts);
    }

    @Unapply
    static Tuple1<NonParameterKeyword> nonParameterKeyword(String keyword) {
        val matcher = Pattern.compile(KEYWORD_REGEX).matcher(keyword);
        NonParameterKeyword npk = null;
        if (matcher.find()) {
            npk = new NonParameterKeyword(
                matcher.group(KEYWORD_NAME_GROUP),
                extractPartsFrom(matcher, Collections.emptyList())
            );
        }
        return Tuple.of(npk);
    }

}