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/*
 * Copyright (c) 2020 vitasystems GmbH and Hannover Medical School.
 *
 * This file is part of project EHRbase
 *
 * 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
 *
 *     https://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.ehrbase.aql.sql.queryimpl;

import static org.ehrbase.aql.sql.queryimpl.EntryAttributeMapper.OTHER_PARTICIPATIONS;

import java.util.ArrayList;
import java.util.List;

public class NormalizedOtherParticipations extends NormalizedRmAttributePath {

    public NormalizedOtherParticipations(List pathSegments) {
        super(pathSegments);
    }

    public List transform() {
        List resultingPaths = new ArrayList<>();

        if (pathSegments.size() >= 1
                && pathSegments.get(pathSegments.size() - 1).contains(OTHER_PARTICIPATIONS)) {
            String otherParticipationsField = pathSegments.get(pathSegments.size() - 1);
            List otherParticipations = new ArrayList<>(List.of(otherParticipationsField.split(",")));
            resultingPaths.addAll(pathSegments.subList(0, pathSegments.size() - 2));
            resultingPaths.addAll(otherParticipations);
        }

        return resultingPaths;
    }
}