// Copyright 2020, The Tari Project
//
// Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
// following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following
// disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
// following disclaimer in the documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote
// products derived from this software without specific prior written permission.
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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// USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

use futures::{StreamExt, future};

use crate::{
    connection_manager::{ConnectionDirection, PeerConnectionInfo},
    memsocket::MemorySocket,
    multiaddr::Multiaddr,
    multiplexing::Yamux,
    transports::{MemoryTransport, Transport},
};

pub async fn build_connected_sockets() -> (Multiaddr, MemorySocket, MemorySocket) {
    let (mut listener, addr) = MemoryTransport.listen(&"/memory/0".parse().unwrap()).await.unwrap();
    let (dial_sock, listen_sock) = future::join(MemoryTransport.dial(&addr), listener.next()).await;
    let (listen_sock, _) = listen_sock.unwrap().unwrap();
    (addr, dial_sock.unwrap(), listen_sock)
}

pub async fn build_multiplexed_connections() -> (Multiaddr, Yamux, Yamux) {
    let (addr, socket_out, socket_in) = build_connected_sockets().await;
    let muxer_out =
        Yamux::upgrade_connection(socket_out, ConnectionDirection::Outbound, PeerConnectionInfo::default()).unwrap();
    let muxer_in =
        Yamux::upgrade_connection(socket_in, ConnectionDirection::Inbound, PeerConnectionInfo::default()).unwrap();
    (addr, muxer_out, muxer_in)
}
