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/*
 * Copyright (C) 2020 Graylog, Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the Server Side Public License, version 1,
 * as published by MongoDB, Inc.
 *
 * 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
 * Server Side Public License for more details.
 *
 * You should have received a copy of the Server Side Public License
 * along with this program. If not, see
 * .
 */
package org.graylog2.jackson;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.ser.std.StdScalarSerializer;

import java.io.IOException;
import java.time.Instant;
import java.time.ZoneOffset;
import java.time.ZonedDateTime;
import java.util.Date;

public final class MongoZonedDateTimeSerializer extends StdScalarSerializer {
    public MongoZonedDateTimeSerializer() {
        super(ZonedDateTime.class);
    }

    @Override
    public void serialize(ZonedDateTime zonedDateTime,
                          JsonGenerator jsonGenerator,
                          SerializerProvider serializerProvider) throws IOException {
        final Instant instant = zonedDateTime.withZoneSameInstant(ZoneOffset.UTC).toInstant();
        final Date date = Date.from(instant);
        jsonGenerator.writeObject(date);
    }
}