use std::io;
use std::net::SocketAddr;

use actix_codec::{BytesCodec, Framed};
use actix_rt::net::TcpStream;
use actix_server::TestServer;
use actix_service::{fn_service, Service, ServiceFactory};
use bytes::Bytes;
use futures_core::future::LocalBoxFuture;
use futures_util::sink::SinkExt;

use actix_tls::connect::{self as actix_connect, Connect, Resolve, Resolver};

#[cfg(all(feature = "connect", feature = "openssl"))]
#[actix_rt::test]
async fn test_string() {
    let srv = TestServer::with(|| {
        fn_service(|io: TcpStream| async {
            let mut framed = Framed::new(io, BytesCodec);
            framed.send(Bytes::from_static(b"test")).await?;
            Ok::<_, io::Error>(())
        })
    });

    let conn = actix_connect::default_connector();
    let addr = format!("localhost:{}", srv.port());
    let con = conn.call(addr.into()).await.unwrap();
    assert_eq!(con.peer_addr().unwrap(), srv.addr());
}

#[cfg(feature = "rustls")]
#[actix_rt::test]
async fn test_rustls_string() {
    let srv = TestServer::with(|| {
        fn_service(|io: TcpStream| async {
            let mut framed = Framed::new(io, BytesCodec);
            framed.send(Bytes::from_static(b"test")).await?;
            Ok::<_, io::Error>(())
        })
    });

    let conn = actix_connect::default_connector();
    let addr = format!("localhost:{}", srv.port());
    let con = conn.call(addr.into()).await.unwrap();
    assert_eq!(con.peer_addr().unwrap(), srv.addr());
}

#[actix_rt::test]
async fn test_static_str() {
    let srv = TestServer::with(|| {
        fn_service(|io: TcpStream| async {
            let mut framed = Framed::new(io, BytesCodec);
            framed.send(Bytes::from_static(b"test")).await?;
            Ok::<_, io::Error>(())
        })
    });

    let conn = actix_connect::default_connector();

    let con = conn.call(Connect::with("10", srv.addr())).await.unwrap();
    assert_eq!(con.peer_addr().unwrap(), srv.addr());

    let connect = Connect::new(srv.host().to_owned());

    let conn = actix_connect::default_connector();
    let con = conn.call(connect).await;
    assert!(con.is_err());
}

#[actix_rt::test]
async fn test_new_service() {
    let srv = TestServer::with(|| {
        fn_service(|io: TcpStream| async {
            let mut framed = Framed::new(io, BytesCodec);
            framed.send(Bytes::from_static(b"test")).await?;
            Ok::<_, io::Error>(())
        })
    });

    let factory = actix_connect::default_connector_factory();

    let conn = factory.new_service(()).await.unwrap();
    let con = conn.call(Connect::with("10", srv.addr())).await.unwrap();
    assert_eq!(con.peer_addr().unwrap(), srv.addr());
}

#[actix_rt::test]
async fn test_custom_resolver() {
    use trust_dns_resolver::TokioAsyncResolver;

    let srv = TestServer::with(|| {
        fn_service(|io: TcpStream| async {
            let mut framed = Framed::new(io, BytesCodec);
            framed.send(Bytes::from_static(b"test")).await?;
            Ok::<_, io::Error>(())
        })
    });

    struct MyResolver {
        trust_dns: TokioAsyncResolver,
    }

    impl Resolve for MyResolver {
        fn lookup<'a>(
            &'a self,
            host: &'a str,
            port: u16,
        ) -> LocalBoxFuture<'a, Result<Vec<SocketAddr>, Box<dyn std::error::Error>>> {
            Box::pin(async move {
                let res = self
                    .trust_dns
                    .lookup_ip(host)
                    .await?
                    .iter()
                    .map(|ip| SocketAddr::new(ip, port))
                    .collect();
                Ok(res)
            })
        }
    }

    let resolver = MyResolver {
        trust_dns: TokioAsyncResolver::tokio_from_system_conf().unwrap(),
    };

    let resolver = Resolver::new_custom(resolver);

    let factory = actix_connect::new_connector_factory(resolver);

    let conn = factory.new_service(()).await.unwrap();
    let con = conn.call(Connect::with("10", srv.addr())).await.unwrap();
    assert_eq!(con.peer_addr().unwrap(), srv.addr());
}

#[cfg(all(feature = "openssl", feature = "uri"))]
#[actix_rt::test]
async fn test_openssl_uri() {
    use std::convert::TryFrom;

    let srv = TestServer::with(|| {
        fn_service(|io: TcpStream| async {
            let mut framed = Framed::new(io, BytesCodec);
            framed.send(Bytes::from_static(b"test")).await?;
            Ok::<_, io::Error>(())
        })
    });

    let conn = actix_connect::default_connector();
    let addr = http::Uri::try_from(format!("https://localhost:{}", srv.port())).unwrap();
    let con = conn.call(addr.into()).await.unwrap();
    assert_eq!(con.peer_addr().unwrap(), srv.addr());
}

#[cfg(all(feature = "rustls", feature = "uri"))]
#[actix_rt::test]
async fn test_rustls_uri() {
    use std::convert::TryFrom;

    let srv = TestServer::with(|| {
        fn_service(|io: TcpStream| async {
            let mut framed = Framed::new(io, BytesCodec);
            framed.send(Bytes::from_static(b"test")).await?;
            Ok::<_, io::Error>(())
        })
    });

    let conn = actix_connect::default_connector();
    let addr = http::Uri::try_from(format!("https://localhost:{}", srv.port())).unwrap();
    let con = conn.call(addr.into()).await.unwrap();
    assert_eq!(con.peer_addr().unwrap(), srv.addr());
}