fix crash by fusing oneshot

luz/.gitignore

@@ -1 +1,2 @@
 luz.db
+.sqlx/

luz/src/lib.rs

@@ -8,6 +8,7 @@ use chat::{Body, Chat, Message};
 use connection::{write::WriteMessage, SupervisorSender};
 use db::Db;
 use error::{ConnectionError, Reason, RosterError, StatusError};
+use futures::{future::Fuse, FutureExt};
 use jabber::JID;
 use presence::{Offline, Online, Presence};
 use roster::{Contact, ContactUpdate};
@@ -47,7 +48,7 @@ pub struct Luz {
     db: Db,
     sender: mpsc::Sender<UpdateMessage>,
     /// if connection was shut down due to e.g. server shutdown, supervisor must be able to mark client as disconnected
-    connection_supervisor_shutdown: oneshot::Receiver<()>,
+    connection_supervisor_shutdown: Fuse<oneshot::Receiver<()>>,
     // TODO: will need to have an auto reconnect state as well (e.g. in case server shut down, to try and reconnect later)
     // TODO: will grow forever at this point, maybe not required as tasks will naturally shut down anyway?
     tasks: JoinSet<()>,
@@ -60,7 +61,7 @@ impl Luz {
         jid: Arc<Mutex<JID>>,
         password: String,
         connected: Arc<Mutex<Option<(WriteHandle, SupervisorHandle)>>>,
-        connection_supervisor_shutdown: oneshot::Receiver<()>,
+        connection_supervisor_shutdown: Fuse<oneshot::Receiver<()>>,
         db: SqlitePool,
         sender: mpsc::Sender<UpdateMessage>,
     ) -> Self {
@@ -82,9 +83,8 @@ impl Luz {
         loop {
             let msg = tokio::select! {
                 // this is okay, as when created the supervisor (and connection) doesn't exist, but a bit messy
-                // THIS IS NOT OKAY LOLLLL
+                // THIS IS NOT OKAY LOLLLL - apparently fusing is the best option???
                 _ = &mut self.connection_supervisor_shutdown => {
-                    info!("got this");
                     *self.connected.lock().await = None;
                     continue;
                 }
@@ -130,6 +130,7 @@ impl Luz {
                                         self.password.clone(),
                                         self.pending_iqs.clone(),
                                     );
+                                    let shutdown_recv = shutdown_recv.fuse();
                                     self.connection_supervisor_shutdown = shutdown_recv;
                                     // TODO: get roster and send initial presence
                                     let (send, recv) = oneshot::channel();
@@ -237,7 +238,7 @@ impl Luz {
                         }
                     };
                 }
-                CommandMessage::Disconnect(_offline) => {
+                CommandMessage::Disconnect(offline) => {
                     match self.connected.lock().await.as_mut() {
                         None => {
                             let _ = self
@@ -247,15 +248,19 @@ impl Luz {
                         }
                         mut c => {
                             // TODO: send unavailable presence
-                            if let Some((_write_handle, supervisor_handle)) = c.take() {
+                            if let Some((write_handle, supervisor_handle)) = c.take() {
+                                let offline_presence: stanza::client::presence::Presence =
+                                    offline.clone().into();
+                                let stanza = Stanza::Presence(offline_presence);
+                                // TODO: timeout and error check
+                                write_handle.write(stanza).await;
                                 let _ = supervisor_handle.send(SupervisorCommand::Disconnect).await;
-                                c = None;
+                                let _ = self.sender.send(UpdateMessage::Offline(offline)).await;
                             } else {
                                 unreachable!()
                             };
                         }
                     }
-                    info!("lock released")
                 }
                 _ => {
                     match self.connected.lock().await.as_ref() {
@@ -1004,6 +1009,7 @@ impl LuzHandle {
         let (update_sender, update_receiver) = mpsc::channel(20);
         // might be bad, first supervisor shutdown notification oneshot is never used (disgusting)
         let (sup_send, sup_recv) = oneshot::channel();
+        let mut sup_recv = sup_recv.fuse();
 
         let actor = Luz::new(
             command_sender.clone(),

luz/src/main.rs

@@ -12,9 +12,13 @@ use tracing::info;
 #[tokio::main]
 async fn main() {
     tracing_subscriber::fmt::init();
-    let db = SqlitePool::connect("./luz.db").await.unwrap();
-    let (luz, mut recv) =
-        LuzHandle::new("test@blos.sm".try_into().unwrap(), "slayed".to_string(), db);
+    let (luz, mut recv) = LuzHandle::new(
+        "test@blos.sm".try_into().unwrap(),
+        "slayed".to_string(),
+        "./luz.db",
+    )
+    .await
+    .unwrap();
 
     tokio::spawn(async move {
         while let Some(msg) = recv.recv().await {

luz/src/presence.rs

@@ -91,3 +91,22 @@ impl From<Online> for stanza::client::presence::Presence {
         }
     }
 }
+
+impl From<Offline> for stanza::client::presence::Presence {
+    fn from(value: Offline) -> Self {
+        Self {
+            from: None,
+            id: None,
+            to: None,
+            r#type: Some(stanza::client::presence::PresenceType::Unavailable),
+            lang: None,
+            show: None,
+            status: value.status.map(|status| stanza::client::presence::Status {
+                lang: None,
+                status: String1024(status),
+            }),
+            priority: None,
+            errors: Vec::new(),
+        }
+    }
+}