// Tutorial chapter 1: Connect to the server
//
// https://honzasp.github.io/makiko/tutorial/1-connect.html
//
// You can run the example with
//
//     cargo run --example tutorial_1
//

#[tokio::main]
async fn main() {
    // Connect to the SSH server.
    let socket = tokio::net::TcpStream::connect(("localhost", 2222)).await
        .expect("Could not open a TCP socket");

    // Use the default secure configuration of the SSH client.
    let config = makiko::ClientConfig::default();
    //let config = makiko::ClientConfig::default_compatible_less_secure();

    // Create the SSH client.
    let (client, mut client_rx, client_fut) = makiko::Client::open(socket, config)
        .expect("Could not open client");

    // Spawn a Tokio task that polls the client.
    tokio::task::spawn(async move {
        client_fut.await.expect("Error in client future");
    });

    loop {
        // Wait for the next event.
        let event = client_rx.recv().await
            .expect("Error while receiving client event");

        // Exit the loop when the client has closed.
        let Some(event) = event else {
            break
        };

        match event {
            // Handle the server public key: for now, we just accept all keys, but this makes
            // us susceptible to man-in-the-middle attacks!
            makiko::ClientEvent::ServerPubkey(pubkey, accept) => {
                println!("Server pubkey type {}, fingerprint {}", pubkey.type_str(), pubkey.fingerprint());
                accept.accept();
            },

            // All other events can be safely ignored
            _ => {},
        }
    }

    // We aren't going to use the `Client` object yet
    let _ = client;
}