re-roll if name is taken

server/src/websocket.rs

@@ -37,20 +37,29 @@ pub async fn websocket_on_connection(stream: WebSocket, state: Arc<AppState>, ad
     let mut map = HashMap::new();
     map.insert(addr, dm_tx.clone());
 
-    state
-        .users_tx
-        .send(UserHandlerMessage::NewUser(
-            User::new(
-                format!(
+    // Roll for username and re-roll if taken
+    let mut username;
+
+    loop {
+        username = format!(
             "{} {}",
             state.first_names.choose(&mut rand::thread_rng()).unwrap(),
             state.last_names.choose(&mut rand::thread_rng()).unwrap(),
-                ),
-                dm_tx.clone(),
-            ),
+        );
+
+        if !state.reserved_names.read().unwrap().contains(&username) {
+            break;
+        }
+    }
+
+    state
+        .users_tx
+        .send(UserHandlerMessage::NewUser(
+            User::new(username, dm_tx.clone()),
             addr,
         ))
-        .await.expect("User handler is down");
+        .await
+        .expect("User handler is down");
 
     // Subscribe to receive from global broadcast channel
     let mut rx = state.broadcast_tx.subscribe();