destiny-2-Sunrise/Sunrise/src/middleware/bap/activity_message/activity_state_refresh_parser.h

#pragma once

#include <cstddef>
#include <cstdint>
#include <span>

namespace sunrise::middleware::bap::activity_message::state_refresh {

/** State-refresh requests use activity message type 18. */
inline constexpr std::uint32_t kMessageType = 18;
/** Two big-endian 32-bit fields form the complete request body. */
inline constexpr std::size_t kEncodedSize = 8;

/** Membership revision and logical bubble index requested by the client. */
struct StateRefresh final {
    std::uint32_t membershipRevision{};
    std::int32_t bubbleIndex{};
};

/**
 * Parses the complete fixed state-refresh request body.
 * @param input Activity message body holding exactly 8 bytes.
 * @param refresh Cleared first. Filled in only on success.
 * @return True only when both big-endian fields are present with no tail.
 */
[[nodiscard]] bool parse_state_refresh(std::span<const std::byte> input,
                                       StateRefresh& refresh) noexcept;

} // namespace sunrise::middleware::bap::activity_message::state_refresh