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use crate::prelude::*;
use crate::error::WebsocketResult;
use tokio_tungstenite::{connect_async, WebSocketStream, MaybeTlsStream};
pub use tokio_tungstenite::tungstenite::Error;
use tokio::net::TcpStream;
use futures_util::SinkExt;
use std::sync::{Arc, Mutex};
use crate::message::Message;
use futures_util::StreamExt;
use futures_util::stream::{SplitSink, SplitStream};
impl From<tokio_tungstenite::tungstenite::Message> for Message {
fn from(message: tokio_tungstenite::tungstenite::Message) -> Self {
match message {
tokio_tungstenite::tungstenite::Message::Binary(binary) => {
Message::Binary(binary)
},
tokio_tungstenite::tungstenite::Message::Text(text) => {
Message::Text(text)
},
tokio_tungstenite::tungstenite::Message::Close(close) => {
let close = close.map(|close| close.reason.to_string());
Message::Close(close)
},
_ => unimplemented!("Some message types aren't implemented yet: {:#?}", message)
}
}
}
#[derive(Derivative)]
#[derivative(Debug)]
pub struct WebSocket {}
#[derive(Derivative, Clone)]
#[derivative(Debug)]
pub struct WebSocketSender {
#[derivative(Debug="ignore")]
sender: Arc<Mutex<SplitSink<WebSocketStream<MaybeTlsStream<TcpStream>>, tokio_tungstenite::tungstenite::Message>>>
}
#[derive(Derivative)]
#[derivative(Debug)]
pub struct WebSocketReceiver {
#[derivative(Debug="ignore")]
receiver: SplitStream<WebSocketStream<MaybeTlsStream<TcpStream>>>
}
impl WebSocket {
pub async fn new(url: &str) -> WebsocketResult<(WebSocketSender, WebSocketReceiver)> {
connect_async(url)
.await
.map(|(socket, _response)| {
let (sender, receiver) = socket.split();
let sender = Arc::new(Mutex::new(sender));
(WebSocketSender { sender }, WebSocketReceiver { receiver })
})
.map_err(|error| crate::error::Error::ConnectionError(error))
}
}
impl WebSocketSender {
pub async fn send(&mut self, message: &Message) -> WebsocketResult<()> {
match message {
Message::Text(text) => {
let text = text.clone().into();
self.sender.lock().expect("Failed to lock sender.").send(text).await.map_err(|error| crate::error::Error::SendError(error))
},
Message::Binary(binary) => {
let binary = binary.clone().into();
self.sender.lock().expect("Failed to lock sender.").send(binary).await.map_err(|error| crate::error::Error::SendError(error))
},
Message::Close(_close) => {
self.sender.lock().expect("Failed to lock sender.").close().await.map_err(|error| crate::error::Error::SendError(error))
}
}
}
pub async fn close(&mut self, message: Option<String>) -> WebsocketResult<()> {
self.send(&Message::Close(message)).await
}
}
impl WebSocketReceiver {
pub async fn next(&mut self) -> Option<WebsocketResult<Message>> {
self.receiver.next().await.map(|result| {
result
.map(|result| {
result.into()
})
.map_err(|error| {
crate::error::Error::ReceiveError(error)
})
})
}
}