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// 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
//
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// software distributed under the License is distributed on an
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//! Wire protocol types and codec for the Iggy binary protocol.
//!
//! This crate is the single source of truth for the binary wire format
//! shared between the Iggy server and SDK. It is a pure codec - no I/O,
//! no async, no runtime dependencies.
//!
//! # Design
//!
//! Protocol types are independent from domain types.
//! Conversion between wire types and domain types happens at the boundary
//! (SDK client impls, server handlers).
//!
//! # Wire frame format
//!
//! **Request** (client -> server):
//! ```text
//! [length:4 bytes, u32 LE][code:4 bytes, u32 LE][payload:N bytes]
//! ```
//!
//! **Response** (server -> client):
//! ```text
//! [status:4 bytes, u32 LE][length:4 bytes, u32 LE][payload:N bytes]
//! ```
//!
//! All multi-byte integers are little-endian. Strings are length-prefixed
//! (u8 length for names, u32 length for longer strings).
//!
//! # VSR consensus framing
//!
//! All consensus headers are 256 bytes with `#[repr(C)]` layout.
//! Deserialization is zero-copy via `bytemuck`. The [`Message`] type
//! wraps request or response backing with typed header access.
//!
//! - Client-facing: [`RequestHeader`], [`ReplyHeader`]
//! - Replication: [`PrepareHeader`], [`PrepareOkHeader`], [`CommitHeader`]
//! - View change: [`StartViewChangeHeader`], [`DoViewChangeHeader`],
//!   [`StartViewHeader`]
//! - Dispatch: [`GenericHeader`] for type-erased initial parsing

pub mod codec;
pub mod codes;
pub mod consensus;
pub mod dispatch;
pub mod error;
pub mod framing;
pub mod message_layout;
pub mod message_view;
pub mod primitives;
pub mod requests;
pub mod responses;

pub use codec::{WireDecode, WireEncode};
pub use consensus::{
    Command2, CommitHeader, ConsensusError, ConsensusHeader, ConsensusMessage, DoViewChangeHeader,
    FragmentedBacking, GenericHeader, HEADER_SIZE, Message, MessageBacking, MessageBag,
    MutableBacking, Operation, PrepareHeader, PrepareOkHeader, ReplyHeader, RequestBacking,
    RequestBackingKind, RequestHeader, ResponseBacking, ResponseBackingKind, StartViewChangeHeader,
    StartViewHeader,
};
pub use dispatch::{COMMAND_TABLE, CommandMeta, lookup_by_operation, lookup_command};
pub use error::WireError;
pub use framing::{RequestFrame, ResponseFrame, STATUS_OK};
pub use message_view::{
    WireMessageIterator, WireMessageIteratorMut, WireMessageView, WireMessageViewMut,
};
pub use primitives::consumer::WireConsumer;
pub use primitives::identifier::{MAX_WIRE_NAME_LENGTH, WireIdentifier, WireName};
pub use primitives::partitioning::{MAX_MESSAGES_KEY_LENGTH, WirePartitioning};
pub use primitives::permissions::{
    WireGlobalPermissions, WirePermissions, WireStreamPermissions, WireTopicPermissions,
};
pub use primitives::polling_strategy::WirePollingStrategy;
pub use primitives::user_headers::{
    WireHeaderKind, WireUserHeaderEntry, WireUserHeaderIterator, WireUserHeaders,
    encode_user_headers, user_headers_encoded_size, validate_user_headers,
};

/// Maximum number of partitions allowed in a single create/delete request.
pub const MAX_PARTITIONS_PER_REQUEST: u32 = 1000;
