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/*
 * Copyright (c) 2022 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 org.ehrbase.aql.definition.I_VariableDefinition;

@SuppressWarnings("java:S3358")
public class DefaultColumnId {

    private DefaultColumnId() {}

    protected static int serial = 0;

    public static String value(I_VariableDefinition variableDefinition) {
        if (variableDefinition == null) return ("field_" + (serial++));
        else
            return (variableDefinition.getPath() == null
                    ? (variableDefinition.getIdentifier() == null
                            ? ("field_" + (serial++))
                            : variableDefinition.getIdentifier())
                    : "/" + variableDefinition.getPath());
    }
}