feat(lib): chat-room protocol (list, join, leave, say) with events

Implement the Soulseek chat-room server messages against soulfind's wire format: - MessageFactory builders: room-list request (64), join (14), leave (15), say (13). - Handlers parsing the server side: RoomList (64) names+counts, JoinRoom (14) membership, SayChatroom (13), UserJoinedRoom (16), UserLeftRoom (17), LeaveRoom (15). - Surface everything to the client as a drained RoomEvent stream plus a room-list snapshot; new Client API: request_room_list, join_room, leave_room, say_in_room, room_list, take_room_events. Unit tests cover each builder and handler; server-gated e2e tests exercise message delivery and room listing against soulfind.
2026-07-19 19:47:58 +02:00
parent ae28f4236a
commit 7bc0ee2c3d
12 changed files with 718 additions and 4 deletions
@@ -0,0 +1,52 @@
+use crate::{
+    actor::server_actor::ServerMessage,
+    message::{Message, MessageHandler},
+};
+use std::sync::mpsc::Sender;
+
+pub struct JoinRoomHandler;
+
+impl MessageHandler<ServerMessage> for JoinRoomHandler {
+    fn get_code(&self) -> u8 {
+        14
+    }
+
+    fn handle(&self, message: &mut Message, sender: Sender<ServerMessage>) {
+        // JoinRoom (code 14): room name, then a vector of member usernames.
+        // Per-user stat vectors follow but are not needed here, so we stop
+        // after reading the names.
+        let room = message.read_string();
+        let user_count = message.read_int32();
+        let mut users = Vec::new();
+        for _ in 0..user_count {
+            users.push(message.read_string());
+        }
+        let _ = sender.send(ServerMessage::RoomJoined { room, users });
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn forwards_room_and_member_list() {
+        let (tx, rx) = std::sync::mpsc::channel();
+        let mut message = Message::new();
+        message.write_raw_bytes(vec![0u8; 8]);
+        message.write_string("nicotine");
+        message.write_int32(2);
+        message.write_string("alice");
+        message.write_string("bob");
+        message.set_pointer(8);
+
+        JoinRoomHandler.handle(&mut message, tx);
+        match rx.try_recv() {
+            Ok(ServerMessage::RoomJoined { room, users }) => {
+                assert_eq!(room, "nicotine");
+                assert_eq!(users, vec!["alice", "bob"]);
+            }
+            other => panic!("unexpected: {other:?}"),
+        }
+    }
+}