/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

package org.apache.paimon.fulltext.index;

import org.apache.paimon.utils.JsonSerdeUtil;
import org.apache.paimon.utils.Preconditions;

import java.nio.charset.StandardCharsets;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Map;

/** Options for the native full-text index. */
public class NativeFullTextIndexOptions {

    static final String FULL_TEXT_PREFIX = "full-text.";

    private final Map<String, String> options;

    public NativeFullTextIndexOptions(Map<String, String> options) {
        this.options =
                Collections.unmodifiableMap(
                        new LinkedHashMap<>(Preconditions.checkNotNull(options)));
    }

    public static NativeFullTextIndexOptions defaults() {
        return new NativeFullTextIndexOptions(Collections.emptyMap());
    }

    public Map<String, String> toNativeOptions() {
        return options;
    }

    public byte[] serialize() {
        return JsonSerdeUtil.toFlatJson(options).getBytes(StandardCharsets.UTF_8);
    }
}
