Initial commit: Rust WebSocket/UDP signaling and media relay server

src/state.rs

@@ -0,0 +1,52 @@
+use dashmap::DashMap;
+use shared::{ControlMsg, UserId};
+use std::net::SocketAddr;
+use std::sync::Arc;
+use tokio::sync::broadcast;
+
+#[derive(Debug, Clone)]
+pub struct AppState {
+    pub rooms: Arc<DashMap<String, Room>>,
+    pub peers_by_addr: Arc<DashMap<SocketAddr, PeerLocation>>,
+}
+
+#[derive(Debug, Clone)]
+pub struct PeerLocation {
+    pub room_id: String,
+    pub user_id: UserId,
+}
+
+#[derive(Debug, Clone)]
+pub struct Room {
+    pub id: String,
+    pub peers: DashMap<UserId, Peer>,
+    // Channel for broadcasting control messages within the room
+    pub tx: broadcast::Sender<ControlMsg>,
+}
+
+#[derive(Debug, Clone)]
+pub struct Peer {
+    pub id: UserId,
+    pub display_name: String,
+    pub addr: Option<SocketAddr>, // UDP address
+}
+
+impl AppState {
+    pub fn new() -> Self {
+        Self {
+            rooms: Arc::new(DashMap::new()),
+            peers_by_addr: Arc::new(DashMap::new()),
+        }
+    }
+}
+
+impl Room {
+    pub fn new(id: String) -> Self {
+        let (tx, _) = broadcast::channel(100);
+        Self {
+            id,
+            peers: DashMap::new(),
+            tx,
+        }
+    }
+}