send chat members list on connection

src/core/player.rs

@@ -20,7 +20,7 @@ use tokio::{
 };
 
 use crate::{
-    core::room::{RoomId, RoomRegistry},
+    core::room::{RoomId, RoomRegistry, RoomInfo},
     prelude::*,
     util::table::{AnonTable, Key as AnonKey},
 };
@@ -44,7 +44,7 @@ impl PlayerConnection {
             .await
     }
 
-    pub async fn join_room(&mut self, room_id: RoomId) {
+    pub async fn join_room(&mut self, room_id: RoomId) -> Result<RoomInfo> {
         self.player_handle.join_room(room_id).await
     }
 }
@@ -84,8 +84,10 @@ impl PlayerHandle {
             .await;
     }
 
-    pub async fn join_room(&self, room_id: RoomId) {
-        self.tx.send(PlayerCommand::JoinRoom { room_id }).await;
+    pub async fn join_room(&self, room_id: RoomId) -> Result<RoomInfo> {
+        let (promise, deferred) = oneshot();
+        self.tx.send(PlayerCommand::JoinRoom { room_id, promise }).await;
+        Ok(deferred.await?)
     }
 
     pub async fn receive_message(
@@ -125,6 +127,7 @@ enum PlayerCommand {
     },
     JoinRoom {
         room_id: RoomId,
+        promise: Promise<RoomInfo>,
     },
     SendMessage {
         room_id: RoomId,
@@ -206,9 +209,11 @@ impl Player {
                         let connection_id = self.sockets.insert(sender);
                         promise.send(ConnectionId(connection_id));
                     }
-                    PlayerCommand::JoinRoom { room_id } => {
-                        let mut room = rooms.get_or_create_room(room_id);
+                    PlayerCommand::JoinRoom { room_id, promise } => {
+                        let mut room = rooms.get_or_create_room(room_id.clone());
                         room.subscribe(player_id.clone(), handle.clone()).await;
+                        let members = room.get_members().await;
+                        promise.send(RoomInfo { id: room_id, members, topic: b"some topic lol".to_vec() });
                     }
                     PlayerCommand::SendMessage {
                         room_id,

src/core/room.rs

@@ -71,7 +71,7 @@ impl RoomHandle {
     }
 
     pub async fn send_message(
-        &mut self,
+        &self,
         player_id: PlayerId,
         connection_id: ConnectionId,
         body: String,
@@ -79,6 +79,11 @@ impl RoomHandle {
         let lock = self.0.read().await;
         lock.send_message(player_id, connection_id, body).await;
     }
+
+    pub async fn get_members(&self) -> Vec<PlayerId> {
+        let lock = self.0.read().await;
+        lock.subscriptions.keys().map(|x| x.clone()).collect::<Vec<_>>()
+    }
 }
 
 struct Room {
@@ -105,3 +110,9 @@ impl Room {
         }
     }
 }
+
+pub struct RoomInfo {
+    pub id: RoomId,
+    pub members: Vec<PlayerId>,
+    pub topic: ByteVec,
+}

src/prelude.rs

@@ -3,6 +3,7 @@ pub use std::future::Future;
 pub use tokio::pin;
 pub use tokio::select;
 pub use tokio::task::JoinHandle;
+pub use tokio::sync::oneshot::{channel as oneshot, Receiver as Deferred, Sender as Promise};
 
 pub mod log {
     pub use tracing::{debug, error, info, warn};

src/projections/irc/mod.rs

@@ -287,7 +287,7 @@ async fn handle_join(
 ) -> Result<()> {
     match chan {
         Chan::Global(ref room) => {
-            user_handle.join_room(RoomId(room.clone())).await;
+            let room_info = user_handle.join_room(RoomId(room.clone())).await?;
             ServerMessage {
                 tags: vec![],
                 sender: Some(user.nickname.clone()),
@@ -301,18 +301,27 @@ async fn handle_join(
                 body: ServerMessageBody::N332Topic {
                     client: user.nickname.clone(),
                     chat: chan.clone(),
-                    topic: b"chan topic lol".to_vec(),
+                    topic: room_info.topic,
                 },
             }
             .write_async(writer)
             .await?;
+            let mut members = if let Some(head) = room_info.members.first() {
+                head.0.clone()
+            } else {
+                user.nickname.clone()
+            };
+            for i in &room_info.members[1..] {
+                members.push(b' ');
+                members.extend(&i.0);
+            }
             ServerMessage {
                 tags: vec![],
                 sender: Some(config.server_name.as_bytes().to_vec()),
                 body: ServerMessageBody::N353NamesReply {
                     client: user.nickname.clone(),
                     chan: chan.clone(),
-                    members: user.nickname.clone(),
+                    members,
                 },
             }
             .write_async(writer)