// Copyright (c) 2019 Reyk Floeter <contact@reykfloeter.com>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

#[macro_use]
extern crate log;

mod cert;

use cert::ServerKeyPair;
use log::LevelFilter;
use std::io;
use tokio::io::{AsyncReadExt, AsyncWriteExt};
use tokio_libtls::prelude::*;

async fn async_https_connect(servername: String) -> io::Result<()> {
    let request = format!(
        "GET / HTTP/1.1\r\n\
         Host: {}\r\n\
         Connection: close\r\n\r\n",
        servername
    );

    let config = TlsConfigBuilder::new().build()?;
    let mut tls = AsyncTls::connect(&(servername + ":443"), &config, None).await?;
    tls.write_all(request.as_bytes()).await?;

    let mut buf = vec![0u8; 1024];
    tls.read_exact(&mut buf).await?;

    let ok = b"HTTP/1.1 200 OK\r\n";
    assert_eq!(&buf[..ok.len()], ok);

    Ok(())
}

#[tokio::main]
async fn main() {
    env_logger::builder()
        .filter_level(LevelFilter::Debug)
        .init();

    async_https_connect("www.example.com".to_owned())
        .await
        .unwrap();

    let server_key = ServerKeyPair::new();

    info!("{:?}", server_key);
}