// client/src/handshake.rs
#![forbid(unsafe_code)]

use lesavka_common::lesavka::{self as pb, handshake_client::HandshakeClient};
use tonic::Code;

#[derive(Default, Clone, Copy, Debug)]
pub struct PeerCaps {
    pub camera:       bool,
    pub microphone:   bool,
}

pub async fn negotiate(uri: &str) -> PeerCaps {
    let mut cli = HandshakeClient::connect(uri.to_owned())
        .await
        .expect("\"dial handshake\"");

    match cli.get_capabilities(pb::Empty {}).await {
        Ok(rsp) => PeerCaps {
            camera:     rsp.get_ref().camera,
            microphone: rsp.get_ref().microphone,
        },
        Err(e) if e.code() == Code::Unimplemented => {
            // ↺  old server – pretend it supports nothing special.
            PeerCaps::default()
        }
        Err(e) => panic!("\"handshake failed: {e}\""),
    }
}