indicators

src/chat.rs

@@ -6,10 +6,22 @@ use std::collections::HashMap;
 use tokio::sync::{RwLock, mpsc};
 use uuid::Uuid;
 
+#[derive(Clone)]
+pub struct ChatClient {
+    tx: mpsc::UnboundedSender<ServerEvent>,
+    is_idle: bool,
+}
+
+#[derive(Serialize, Clone)]
+pub struct OnlineUser {
+    pub user_id: Uuid,
+    pub idle: bool,
+}
+
 #[derive(Default)]
 pub struct ChatHub {
-    // user_id -> sender
-    clients: RwLock<HashMap<Uuid, mpsc::UnboundedSender<ServerEvent>>>,
+    // user_id -> client
+    clients: RwLock<HashMap<Uuid, ChatClient>>,
 }
 
 #[derive(Serialize, Clone)]
@@ -26,6 +38,7 @@ pub enum ServerEvent {
     UserPresence {
         user_id: Uuid,
         online: bool,
+        idle: bool,
     },
 }
 
@@ -34,12 +47,13 @@ pub enum ServerEvent {
 enum ClientEvent {
     // Currently no interactive client events for the general chat WS
     Ping,
+    SetIdleStatus { is_idle: bool },
 }
 
 impl ChatHub {
     pub async fn add_client(&self, user_id: Uuid, tx: mpsc::UnboundedSender<ServerEvent>) {
         let mut clients = self.clients.write().await;
-        clients.insert(user_id, tx);
+        clients.insert(user_id, ChatClient { tx, is_idle: false });
     }
 
     pub async fn remove_client(&self, user_id: Uuid) {
@@ -47,33 +61,54 @@ impl ChatHub {
         clients.remove(&user_id);
     }
 
-    pub async fn get_online_users(&self) -> Vec<Uuid> {
+    pub async fn get_online_users(&self) -> Vec<OnlineUser> {
         let clients = self.clients.read().await;
-        clients.keys().cloned().collect()
+        clients
+            .iter()
+            .map(|(id, client)| OnlineUser {
+                user_id: *id,
+                idle: client.is_idle,
+            })
+            .collect()
     }
 
     pub async fn broadcast_all(&self, event: ServerEvent) {
         let clients = self.clients.read().await;
-        for tx in clients.values() {
-            let _ = tx.send(event.clone());
+        for client in clients.values() {
+            let _ = client.tx.send(event.clone());
         }
     }
 
     pub async fn broadcast_to_user(&self, user_id: Uuid, event: ServerEvent) {
         let clients = self.clients.read().await;
-        if let Some(tx) = clients.get(&user_id) {
-            let _ = tx.send(event);
+        if let Some(client) = clients.get(&user_id) {
+            let _ = client.tx.send(event);
         }
     }
 
     pub async fn broadcast_to_many(&self, user_ids: Vec<Uuid>, event: ServerEvent) {
         let clients = self.clients.read().await;
         for user_id in user_ids {
-            if let Some(tx) = clients.get(&user_id) {
-                let _ = tx.send(event.clone());
+            if let Some(client) = clients.get(&user_id) {
+                let _ = client.tx.send(event.clone());
             }
         }
     }
+
+    pub async fn set_idle_status(&self, user_id: Uuid, is_idle: bool) {
+        {
+            let mut clients = self.clients.write().await;
+            if let Some(client) = clients.get_mut(&user_id) {
+                client.is_idle = is_idle;
+            }
+        }
+        self.broadcast_all(ServerEvent::UserPresence {
+            user_id,
+            online: true,
+            idle: is_idle,
+        })
+        .await;
+    }
 }
 
 pub async fn handle_socket(state: AppState, socket: WebSocket, user_id: Uuid) {
@@ -86,6 +121,7 @@ pub async fn handle_socket(state: AppState, socket: WebSocket, user_id: Uuid) {
         .broadcast_all(ServerEvent::UserPresence {
             user_id,
             online: true,
+            idle: false,
         })
         .await;
 
@@ -101,8 +137,16 @@ pub async fn handle_socket(state: AppState, socket: WebSocket, user_id: Uuid) {
     });
 
     while let Some(Ok(msg)) = ws_receiver.next().await {
-        if let Message::Close(_) = msg {
-            break;
+        match msg {
+            Message::Close(_) => break,
+            Message::Text(text) => {
+                if let Ok(ClientEvent::SetIdleStatus { is_idle }) =
+                    serde_json::from_str::<ClientEvent>(&text)
+                {
+                    state.chat.set_idle_status(user_id, is_idle).await;
+                }
+            }
+            _ => {}
         }
     }
 
@@ -113,6 +157,7 @@ pub async fn handle_socket(state: AppState, socket: WebSocket, user_id: Uuid) {
         .broadcast_all(ServerEvent::UserPresence {
             user_id,
             online: false,
+            idle: false,
         })
         .await;
 }