/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [http://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.neo4j.server.http.cypher.format.jolt;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.ser.std.StdSerializer;
import java.io.IOException;
import java.util.function.Function;

/**
 * Omits the number sigil if the value is in integer range.
 *
 * @param <T>
 */
final class JoltSparseNumberSerializer<T extends Number> extends StdSerializer<T> {
    private final JsonSerializer<T> delegate;
    private final Sigil sigil;
    private final Function<T, String> converter;

    JoltSparseNumberSerializer(Class<T> t, Sigil sigil, Function<T, String> converter) {
        super(t);
        this.sigil = sigil;
        this.converter = converter;

        this.delegate = new JoltDelegatingValueSerializer<>(t, sigil, converter);
    }

    @Override
    public void serialize(T value, JsonGenerator generator, SerializerProvider provider) throws IOException {
        long longValue = value.longValue();
        if (longValue >= Integer.MIN_VALUE && longValue <= Integer.MAX_VALUE) {
            generator.writeNumber(longValue);
        } else {
            delegate.serialize(value, generator, provider);
        }
    }
}
