// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0

use crate::varint::VarInt;

//= https://www.rfc-editor.org/rfc/rfc9000#section-19.10
//# A MAX_STREAM_DATA frame (type=0x11) is used in flow control to inform
//# a peer of the maximum amount of data that can be sent on a stream.

macro_rules! max_stream_data_tag {
    () => {
        0x11u8
    };
}

//= https://www.rfc-editor.org/rfc/rfc9000#section-19.10
//# MAX_STREAM_DATA Frame {
//#   Type (i) = 0x11,
//#   Stream ID (i),
//#   Maximum Stream Data (i),
//# }

//= https://www.rfc-editor.org/rfc/rfc9000#section-19.10
//# MAX_STREAM_DATA frames contain the following fields:
//#
//# Stream ID:  The stream ID of the affected stream, encoded as a
//# variable-length integer.
//#
//# Maximum Stream Data:  A variable-length integer indicating the
//# maximum amount of data that can be sent on the identified stream,
//# in units of bytes.

#[derive(Copy, Clone, Debug, PartialEq, Eq)]
pub struct MaxStreamData {
    /// The stream ID of the stream that is affected encoded as a
    /// variable-length integer.
    pub stream_id: VarInt,

    /// A variable-length integer indicating the maximum amount of data
    /// that can be sent on the identified stream, in units of bytes.
    pub maximum_stream_data: VarInt,
}

impl MaxStreamData {
    pub const fn tag(&self) -> u8 {
        max_stream_data_tag!()
    }
}

simple_frame_codec!(
    MaxStreamData {
        stream_id,
        maximum_stream_data
    },
    max_stream_data_tag!()
);