/*
 * Copyright 2019-present HiveMQ GmbH
 *
 * 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
 *
 *     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 com.hivemq.codec.encoder;

import com.hivemq.bootstrap.ClientConnectionContext;
import com.hivemq.extension.sdk.api.annotations.NotNull;
import com.hivemq.mqtt.message.PINGRESP;
import io.netty.buffer.ByteBuf;

public class MqttPingrespEncoder implements MqttEncoder<PINGRESP> {

    private static final byte PINGRESP_FIXED_HEADER = (byte) 0b1101_0000;
    private static final byte PINGRESP_REMAINING_LENGTH = 0b0000_0000;
    public static final int ENCODED_PINGRESP_SIZE = 2;

    @Override
    public void encode(
            final @NotNull ClientConnectionContext clientConnectionContext,
            final @NotNull PINGRESP msg,
            final @NotNull ByteBuf out) {

        out.writeByte(PINGRESP_FIXED_HEADER);
        out.writeByte(PINGRESP_REMAINING_LENGTH);
    }

    @Override
    public int bufferSize(final @NotNull ClientConnectionContext clientConnectionContext, final @NotNull PINGRESP msg) {
        return ENCODED_PINGRESP_SIZE;
    }
}