69 lines
2 KiB
Rust
69 lines
2 KiB
Rust
use crate::AppState;
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use axum::{
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extract::{
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ws::{Message, WebSocket},
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ConnectInfo, State, WebSocketUpgrade,
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},
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response::IntoResponse,
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};
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use futures::{SinkExt, StreamExt};
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use std::{net::SocketAddr, sync::Arc};
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pub mod message_handler;
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use crate::message_handler::*;
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fn greeting(state: &Arc<AppState>) -> String {
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format!(
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"{:#?} Card packs loaded\n\
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{:#?} Current active games",
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state.all_cards.lock().unwrap().len(),
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state.games.lock().unwrap().len(),
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)
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}
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pub async fn websocket(stream: WebSocket, state: Arc<AppState>, who: SocketAddr) {
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// By splitting, we can send and receive at the same time.
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let (mut sender, mut receiver) = stream.split();
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// sup
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let _greeting = sender.send(Message::Text(greeting(&state))).await;
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// subscribe to broadcast channel
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let mut rx = state.tx.subscribe();
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// ANNOUNCE THY PRESENCE
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let msg = format!("{who} is here, bitches!");
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tracing::debug!("{msg}");
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let _ = state.tx.send(msg);
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// handle broadcasting further awesome messages
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let mut send_task = tokio::spawn(async move {
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while let Ok(msg) = rx.recv().await {
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if sender.send(Message::Text(msg)).await.is_err() {
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break;
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}
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}
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});
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// handle new incoming messages
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let mut recv_task = tokio::spawn(async move {
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while let Some(Ok(message)) = receiver.next().await {
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message_handler(message, &state, who).await
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}
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});
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// if either task completes then abort the other
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tokio::select! {
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_ = (&mut send_task) => recv_task.abort(),
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_ = (&mut recv_task) => send_task.abort(),
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};
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}
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pub async fn websocket_handler(
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ws: WebSocketUpgrade,
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// user_agent: Option<TypedHeader<headers::UserAgent>>,
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ConnectInfo(addr): ConnectInfo<SocketAddr>,
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State(state): State<Arc<AppState>>,
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) -> impl IntoResponse {
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tracing::debug!("New connection from {addr}");
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ws.on_upgrade(move |socket| websocket(socket, state, addr))
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}
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