WIP: roster retrieval

luz/src/error.rs

@@ -11,6 +11,7 @@ pub enum Error {
     SendMessage(Reason),
     AlreadyDisconnected,
     LostConnection,
+    CacheUpdate(Reason),
 }
 
 #[derive(Debug)]

luz/src/lib.rs

@@ -314,7 +314,7 @@ impl CommandMessage {
         // TODO: jid could lose resource by the end
         jid: Arc<Mutex<JID>>,
         db: Db,
-        sender: mpsc::Sender<UpdateMessage>,
+        update_sender: mpsc::Sender<UpdateMessage>,
         pending_iqs: Arc<Mutex<HashMap<String, oneshot::Sender<Result<Stanza, Reason>>>>>,
     ) {
         match self {
@@ -367,16 +367,21 @@ impl CommandMessage {
                 match iq_recv.await {
                     Ok(Ok(stanza)) => match stanza {
                         Stanza::Iq(Iq {
-                            from,
+                            from: _,
                             id,
-                            to,
+                            to: _,
                             r#type,
-                            lang,
-                            query: Some(iq::Query::Roster(stanza::roster::Query { ver, items })),
-                            errors,
+                            lang: _,
+                            query: Some(iq::Query::Roster(stanza::roster::Query { ver: _, items })),
+                            errors: _,
                         }) if id == iq_id && r#type == IqType::Result => {
                             let contacts: Vec<Contact> =
                                 items.into_iter().map(|item| item.into()).collect();
+                            if let Err(e) = db.replace_cached_roster(contacts.clone()).await {
+                                update_sender
+                                    .send(UpdateMessage::Error(Error::CacheUpdate(e.into())))
+                                    .await;
+                            };
                             result_sender.send(Ok(contacts));
                             return;
                         }

luz/src/roster.rs

@@ -9,7 +9,7 @@ pub enum ContactUpdate {
     RemoveFromGroup(String),
 }
 
-#[derive(Debug, sqlx::FromRow)]
+#[derive(Debug, sqlx::FromRow, Clone)]
 pub struct Contact {
     // jid is the id used to reference everything, but not the primary key
     pub user_jid: JID,
@@ -23,7 +23,7 @@ pub struct Contact {
     pub groups: HashSet<String>,
 }
 
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 pub enum Subscription {
     None,
     PendingOut,