implemen sending messages to a chan

src/core/player.rs

@@ -15,34 +15,51 @@ use std::{
 use prometheus::{IntGauge, Registry as MetricsRegistry};
 use tokio::{
     sync::mpsc::{channel, Receiver, Sender},
+    sync::oneshot::{channel as oneshot, Sender as OneshotSender},
     task::JoinHandle,
 };
 
 use crate::{
     core::room::{RoomId, RoomRegistry},
     prelude::*,
-    util::table::AnonTable,
+    util::table::{AnonTable, Key as AnonKey},
 };
 
 /// Opaque player identifier.
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub struct PlayerId(pub ByteVec);
 
+#[derive(Debug, Clone, PartialEq, Eq, Hash)]
+pub struct ConnectionId(pub AnonKey);
+
 /// Handle to a player actor.
 #[derive(Clone)]
 pub struct PlayerHandle {
     tx: Sender<PlayerCommand>,
 }
 impl PlayerHandle {
-    pub async fn subscribe(&mut self) -> Receiver<Updates> {
+    pub async fn subscribe(&mut self) -> (ConnectionId, Receiver<Updates>) {
         let (sender, rx) = channel(32);
-        self.tx.send(PlayerCommand::AddSocket { sender }).await;
+        let (promise, deferred) = oneshot();
-        rx
+        self.tx
+            .send(PlayerCommand::AddSocket { sender, promise })
+            .await;
+        let connection_id = deferred.await.unwrap();
+        (connection_id, rx)
     }
 
-    pub async fn send_message(&mut self, room_id: RoomId, body: String) {
+    pub async fn send_message(
+        &mut self,
+        room_id: RoomId,
+        connection_id: ConnectionId,
+        body: String,
+    ) {
         self.tx
-            .send(PlayerCommand::SendMessage { room_id, body })
+            .send(PlayerCommand::SendMessage {
+                room_id,
+                connection_id,
+                body,
+            })
             .await;
     }
 
@@ -50,11 +67,18 @@ impl PlayerHandle {
         self.tx.send(PlayerCommand::JoinRoom { room_id }).await;
     }
 
-    pub async fn receive_message(&mut self, room_id: RoomId, author: PlayerId, body: String) {
+    pub async fn receive_message(
+        &mut self,
+        room_id: RoomId,
+        author: PlayerId,
+        connection_id: ConnectionId,
+        body: String,
+    ) {
         self.tx
             .send(PlayerCommand::IncomingMessage {
                 room_id,
                 author,
+                connection_id,
                 body,
             })
             .await;
@@ -63,22 +87,32 @@ impl PlayerHandle {
 
 /// Player update event type which is sent to a connection handler.
 pub enum Updates {
-    RoomJoined { room_id: RoomId },
+    RoomJoined {
-    NewMessage { room_id: RoomId, body: String },
+        room_id: RoomId,
+    },
+    NewMessage {
+        author_id: PlayerId,
+        connection_id: ConnectionId,
+        room_id: RoomId,
+        body: String,
+    },
 }
 enum PlayerCommand {
     AddSocket {
         sender: Sender<Updates>,
+        promise: OneshotSender<ConnectionId>,
     },
     JoinRoom {
         room_id: RoomId,
     },
     SendMessage {
         room_id: RoomId,
+        connection_id: ConnectionId,
         body: String,
     },
     IncomingMessage {
         room_id: RoomId,
+        connection_id: ConnectionId,
         author: PlayerId,
         body: String,
     },
@@ -108,10 +142,14 @@ impl PlayerRegistry {
             sockets: AnonTable::new(),
         };
         let mut inner = self.0.write().unwrap();
-        let (handle, fiber) = player.launch(id.clone(), inner.room_registry.clone());
+        if let Some((handle, _)) = inner.players.get(&id) {
-        inner.players.insert(id, (handle.clone(), fiber));
+            handle.clone()
-        inner.metric_active_players.inc();
+        } else {
-        handle
+            let (handle, fiber) = player.launch(id.clone(), inner.room_registry.clone());
+            inner.players.insert(id, (handle.clone(), fiber));
+            inner.metric_active_players.inc();
+            handle
+        }
     }
 }
 
@@ -138,18 +176,24 @@ impl Player {
         let fiber = tokio::task::spawn(async move {
             while let Some(cmd) = rx.recv().await {
                 match cmd {
-                    PlayerCommand::AddSocket { sender } => {
+                    PlayerCommand::AddSocket { sender, promise } => {
-                        self.sockets.insert(sender);
+                        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);
                         room.subscribe(player_id.clone(), handle.clone()).await;
                     }
-                    PlayerCommand::SendMessage { room_id, body } => {
+                    PlayerCommand::SendMessage {
+                        room_id,
+                        connection_id,
+                        body,
+                    } => {
                         let room = rooms.get_room(room_id);
                         match room {
                             Some(mut room) => {
-                                room.send_message(player_id.clone(), body).await;
+                                room.send_message(player_id.clone(), connection_id, body)
+                                    .await;
                             }
                             None => {
                                 tracing::info!("no room found");
@@ -159,12 +203,16 @@ impl Player {
                     PlayerCommand::IncomingMessage {
                         room_id,
                         author,
+                        connection_id,
                         body,
                     } => {
                         tracing::info!("Handling incoming message");
                         for socket in &self.sockets {
+                            log::info!("Send message to socket");
                             socket
                                 .send(Updates::NewMessage {
+                                    author_id: author.clone(),
+                                    connection_id: connection_id.clone(),
                                     room_id: room_id.clone(),
                                     body: body.clone(),
                                 })

src/core/room.rs

@@ -13,6 +13,8 @@ use crate::{
     prelude::*,
 };
 
+use super::player::ConnectionId;
+
 /// Opaque room id
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub struct RoomId(pub ByteVec);
@@ -37,10 +39,14 @@ impl RoomRegistry {
             subscriptions: HashMap::new(),
         };
         let mut inner = self.0.write().unwrap();
-        let (room_handle, fiber) = room.launch(room_id.clone());
+        if let Some((room_handle, _)) = inner.rooms.get(&room_id) {
-        inner.rooms.insert(room_id, (room_handle.clone(), fiber));
+            room_handle.clone()
-        inner.metric_active_rooms.inc();
+        } else {
-        room_handle
+            let (room_handle, fiber) = room.launch(room_id.clone());
+            inner.rooms.insert(room_id, (room_handle.clone(), fiber));
+            inner.metric_active_rooms.inc();
+            room_handle
+        }
     }
 
     pub fn get_room(&self, room_id: RoomId) -> Option<RoomHandle> {
@@ -73,9 +79,18 @@ impl RoomHandle {
         };
     }
 
-    pub async fn send_message(&mut self, player_id: PlayerId, body: String) {
+    pub async fn send_message(
+        &mut self,
+        player_id: PlayerId,
+        connection_id: ConnectionId,
+        body: String,
+    ) {
         self.tx
-            .send(RoomCommand::SendMessage { player_id, body })
+            .send(RoomCommand::SendMessage {
+                player_id,
+                connection_id,
+                body,
+            })
             .await;
     }
 }
@@ -87,6 +102,7 @@ enum RoomCommand {
     },
     SendMessage {
         player_id: PlayerId,
+        connection_id: ConnectionId,
         body: String,
     },
 }
@@ -105,11 +121,21 @@ impl Room {
                         tracing::info!("Adding a subscriber to room");
                         self.subscriptions.insert(player_id, player);
                     }
-                    RoomCommand::SendMessage { player_id, body } => {
+                    RoomCommand::SendMessage {
+                        player_id,
+                        connection_id,
+                        body,
+                    } => {
                         tracing::info!("Adding a message to room");
                         for (_, sub) in &mut self.subscriptions {
-                            sub.receive_message(room_id.clone(), player_id.clone(), body.clone())
+                            log::info!("Sending a message from room to player");
-                                .await;
+                            sub.receive_message(
+                                room_id.clone(),
+                                player_id.clone(),
+                                connection_id.clone(),
+                                body.clone(),
+                            )
+                            .await;
                         }
                     }
                 }

src/projections/irc.rs

@@ -134,7 +134,7 @@ async fn handle_registered_socket<'a>(
     let mut user_handle = players
         .get_or_create_player(PlayerId(user.nickname.clone()))
         .await;
-    let mut connnection = user_handle.subscribe().await;
+    let (my_connection_id, mut connnection) = user_handle.subscribe().await;
 
     ServerMessage {
         tags: vec![],
@@ -217,8 +217,49 @@ async fn handle_registered_socket<'a>(
                             },
                             ClientMessage::Join(chan) => {
                                 match chan {
-                                    Chan::Global(room) => {
+                                    Chan::Global(ref room) => {
                                         user_handle.join_room(RoomId(room.clone())).await;
+                                        ServerMessage {
+                                            tags: vec![],
+                                            sender: Some(user.nickname.clone()),
+                                            body: ServerMessageBody::Join(chan.clone()),
+                                        }
+                                        .write_async(&mut writer)
+                                        .await?;
+                                        ServerMessage {
+                                            tags: vec![],
+                                            sender: Some(config.server_name.as_bytes().to_vec()),
+                                            body: ServerMessageBody::N332Topic {
+                                                client: user.nickname.clone(),
+                                                chat: chan.clone(),
+                                                topic: b"chan topic lol".to_vec(),
+                                            },
+                                        }
+                                        .write_async(&mut writer)
+                                        .await?;
+                                        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(),
+                                            },
+                                        }
+                                        .write_async(&mut writer)
+                                        .await?;
+                                        ServerMessage {
+                                            tags: vec![],
+                                            sender: Some(config.server_name.as_bytes().to_vec()),
+                                            body: ServerMessageBody::N366NamesReplyEnd {
+                                                client: user.nickname.clone(),
+                                                chan: chan.clone(),
+                                            },
+                                        }
+                                        .write_async(&mut writer)
+                                        .await?;
+
+                                        writer.flush().await?;
                                     },
                                     Chan::Local(_) => {},
                                 };
@@ -227,7 +268,7 @@ async fn handle_registered_socket<'a>(
                                 match recipient {
                                     Recipient::Chan(Chan::Global(room)) => {
                                         match String::from_utf8(body) {
-                                            Ok(body) => user_handle.send_message(RoomId(room.clone()), body.clone()).await,
+                                            Ok(body) => user_handle.send_message(RoomId(room.clone()), my_connection_id.clone(), body.clone()).await,
                                             Err(err) => log::warn!("failed to parse incoming message: {err}"),
                                         }
                                     },
@@ -246,13 +287,15 @@ async fn handle_registered_socket<'a>(
             update = connnection.recv() => {
                 match update.unwrap() {
                     Updates::RoomJoined { room_id } => {},
-                    Updates::NewMessage { room_id, body } => {
+                    Updates::NewMessage { author_id, connection_id, room_id, body } => {
-                        ServerMessage {
+                        if my_connection_id != connection_id {
-                            tags: vec![],
+                            ServerMessage {
-                            sender: None,
+                                tags: vec![],
-                            body: ServerMessageBody::PrivateMessage { target: Recipient::Chan(Chan::Global(room_id.0)), body: body.as_bytes().to_vec() }
+                                sender: Some(author_id.0.clone()),
-                        }.write_async(&mut writer).await?;
+                                body: ServerMessageBody::PrivateMessage { target: Recipient::Chan(Chan::Global(room_id.0)), body: body.as_bytes().to_vec() }
-                        writer.flush().await?
+                            }.write_async(&mut writer).await?;
+                            writer.flush().await?
+                        }
                     },
                 }
             }

src/protos/irc/server.rs

@@ -59,6 +59,7 @@ pub enum ServerMessageBody {
         target: Recipient,
         body: ByteVec,
     },
+    Join(Chan),
     N001Welcome {
         client: ByteVec,
         text: ByteVec,
@@ -81,6 +82,20 @@ pub enum ServerMessageBody {
         client: ByteVec,
         params: ByteVec, // TODO make this a datatype
     },
+    N332Topic {
+        client: ByteVec,
+        chat: Chan,
+        topic: ByteVec,
+    },
+    N353NamesReply {
+        client: ByteVec,
+        chan: Chan,
+        members: ByteVec, // TODO make this a non-empty list with prefixes
+    },
+    N366NamesReplyEnd {
+        client: ByteVec,
+        chan: Chan,
+    },
 }
 
 impl ServerMessageBody {
@@ -112,6 +127,10 @@ impl ServerMessageBody {
                 writer.write_all(b" :").await?;
                 writer.write_all(&body).await?;
             }
+            ServerMessageBody::Join(chan) => {
+                writer.write_all(b"JOIN ").await?;
+                chan.write_async(writer).await?;
+            }
             ServerMessageBody::N001Welcome { client, text } => {
                 writer.write_all(b"001 ").await?;
                 writer.write_all(&client).await?;
@@ -153,6 +172,37 @@ impl ServerMessageBody {
                 writer.write_all(&params).await?;
                 writer.write_all(b" :are supported by this server").await?;
             }
+            ServerMessageBody::N332Topic {
+                client,
+                chat,
+                topic,
+            } => {
+                writer.write_all(b"332 ").await?;
+                writer.write_all(&client).await?;
+                writer.write_all(b" ").await?;
+                chat.write_async(writer).await?;
+                writer.write_all(b" :").await?;
+                writer.write_all(&topic).await?;
+            }
+            ServerMessageBody::N353NamesReply {
+                client,
+                chan,
+                members,
+            } => {
+                writer.write_all(b"353 ").await?;
+                writer.write_all(&client).await?;
+                writer.write_all(b" = ").await?;
+                chan.write_async(writer).await?;
+                writer.write_all(b" :").await?;
+                writer.write_all(&members).await?;
+            }
+            ServerMessageBody::N366NamesReplyEnd { client, chan } => {
+                writer.write_all(b"366 ").await?;
+                writer.write_all(&client).await?;
+                writer.write_all(b" ").await?;
+                chan.write_async(writer).await?;
+                writer.write_all(b" :End of /NAMES list").await?;
+            }
         }
         Ok(())
     }

src/util/table.rs

@@ -1,6 +1,6 @@
 use std::collections::HashMap;
 
-#[derive(PartialEq, Eq, Debug, Clone, Copy)]
+#[derive(PartialEq, Eq, Debug, Clone, Copy, Hash)]
 pub struct Key(u32);
 
 /// Hash map with auto-generated surrogate key.