use std::error::Error;

use super::wireguard::bind::Bind;
use super::wireguard::tun::Tun;

#[cfg(target_os = "linux")]
mod linux;

#[cfg(target_os = "linux")]
pub use linux::PlatformTun;

/* Syntax is nasty here, due to open issue:
 * https://github.com/rust-lang/rust/issues/38078
 */
pub trait UDPBind {
    type Closer;
    type Error: Error;
    type Bind: Bind;

    /// Bind to a new port, returning the reader/writer and
    /// an associated instance of the Closer type, which closes the UDP socket upon "drop".
    fn bind(
        port: u16,
    ) -> Result<
        (
            <<Self as UDPBind>::Bind as Bind>::Reader,
            <<Self as UDPBind>::Bind as Bind>::Writer,
            Self::Closer,
        ),
        Self::Error,
    >;
}

pub trait TunBind: Tun {
    fn create(name: &str) -> Result<(Vec<Self::Reader>, Self::Writer, Self::MTU), Self::Error>;
}