//! Protobuf-generated types for the v2 relay transport
//! (data/iOS-app/v2/relay-protocol.md §2). Used by both the relay
//! and (in a separate task) the mobile-connector plugin. Generated by
//! `build.rs` from `proto/skald/relay/v2/relay_frame.proto` via prost.

#![allow(clippy::all, clippy::pedantic)]

/// The `OUT_DIR` is the build-script output directory (set by Cargo).
/// `prost_build` writes `skald.relay.v2.rs` into it.
pub mod v2 {
    include!(concat!(env!("OUT_DIR"), "/skald.relay.v2.rs"));
}

#[cfg(test)]
mod tests {
    use super::v2::*;
    use super::v2::relay_frame::Frame;

    #[test]
    fn proto_types_construct() {
        // Round-trip a Challenge and a Message with all fields set.
        //
        // Note: prost 0.13 generates `bytes` fields as `::prost::bytes::Bytes`
        // (re-export of `bytes::Bytes`), not `Vec<u8>` as the spec originally
        // suggested. `Bytes: From<Vec<u8>>` so a `.into()` on the literal
        // produces a value the generated struct accepts. The wire encoding
        // is identical — both types are zero-copy compatible on the wire.
        let ch = RelayFrame {
            frame: Some(Frame::Challenge(Challenge {
                nonce: vec![0u8; 32].into(),
            })),
        };
        assert!(matches!(ch.frame, Some(Frame::Challenge(_))));

        let msg = Message {
            ciphertext: vec![1, 2, 3].into(),
            nonce: vec![0u8; 12].into(),
            peer: vec![0u8; 32].into(),
            live: true,
        };
        let framed = RelayFrame {
            frame: Some(Frame::Message(msg)),
        };
        assert!(matches!(framed.frame, Some(Frame::Message(_))));
    }
}