fix: element android did not reset notification counts

src/api/client_server/account.rs

@@ -4,8 +4,8 @@ use ruma::{
     api::client::{
         account::{
             change_password, deactivate, get_3pids, get_username_availability, register,
-            request_3pid_management_token_via_email, request_3pid_management_token_via_msisdn, whoami,
-            ThirdPartyIdRemovalStatus,
+            request_3pid_management_token_via_email, request_3pid_management_token_via_msisdn,
+            whoami, ThirdPartyIdRemovalStatus,
         },
         error::ErrorKind,
         uiaa::{AuthFlow, AuthType, UiaaInfo},

src/api/client_server/directory.rs

@@ -87,10 +87,7 @@ pub async fn set_room_visibility_route(
 
     if !services().rooms.metadata.exists(&body.room_id)? {
         // Return 404 if the room doesn't exist
-        return Err(Error::BadRequest(
-            ErrorKind::NotFound,
-            "Room not found",
-        ));
+        return Err(Error::BadRequest(ErrorKind::NotFound, "Room not found"));
     }
 
     match &body.visibility {
@@ -116,13 +113,9 @@ pub async fn set_room_visibility_route(
 pub async fn get_room_visibility_route(
     body: Ruma<get_room_visibility::v3::IncomingRequest>,
 ) -> Result<get_room_visibility::v3::Response> {
-
     if !services().rooms.metadata.exists(&body.room_id)? {
         // Return 404 if the room doesn't exist
-        return Err(Error::BadRequest(
-            ErrorKind::NotFound,
-            "Room not found",
-        ));
+        return Err(Error::BadRequest(ErrorKind::NotFound, "Room not found"));
     }
 
     Ok(get_room_visibility::v3::Response {

src/api/client_server/sync.rs

@@ -282,9 +282,8 @@ async fn sync_helper(
         let send_notification_counts = !timeline_pdus.is_empty()
             || services()
                 .rooms
-                .edus
-                .read_receipt
-                .last_privateread_update(&sender_user, &room_id)?
+                .user
+                .last_notification_read(&sender_user, &room_id)?
                 > since;
 
         let mut timeline_users = HashSet::new();

src/database/key_value/rooms/user.rs

@@ -7,12 +7,20 @@ impl service::rooms::user::Data for KeyValueDatabase {
         let mut userroom_id = user_id.as_bytes().to_vec();
         userroom_id.push(0xff);
         userroom_id.extend_from_slice(room_id.as_bytes());
+        let mut roomuser_id = room_id.as_bytes().to_vec();
+        roomuser_id.push(0xff);
+        roomuser_id.extend_from_slice(user_id.as_bytes());
 
         self.userroomid_notificationcount
             .insert(&userroom_id, &0_u64.to_be_bytes())?;
         self.userroomid_highlightcount
             .insert(&userroom_id, &0_u64.to_be_bytes())?;
 
+        self.roomuserid_lastnotificationread.insert(
+            &roomuser_id,
+            &services().globals.next_count()?.to_be_bytes(),
+        )?;
+
         Ok(())
     }
 
@@ -44,6 +52,23 @@ impl service::rooms::user::Data for KeyValueDatabase {
             .unwrap_or(Ok(0))
     }
 
+    fn last_notification_read(&self, user_id: &UserId, room_id: &RoomId) -> Result<u64> {
+        let mut key = room_id.as_bytes().to_vec();
+        key.push(0xff);
+        key.extend_from_slice(user_id.as_bytes());
+
+        Ok(self
+            .roomuserid_lastnotificationread
+            .get(&key)?
+            .map(|bytes| {
+                utils::u64_from_bytes(&bytes).map_err(|_| {
+                    Error::bad_database("Count in roomuserid_lastprivatereadupdate is invalid.")
+                })
+            })
+            .transpose()?
+            .unwrap_or(0))
+    }
+
     fn associate_token_shortstatehash(
         &self,
         room_id: &RoomId,

src/database/mod.rs

@@ -98,6 +98,7 @@ pub struct KeyValueDatabase {
 
     pub(super) userroomid_notificationcount: Arc<dyn KvTree>, // NotifyCount = u64
     pub(super) userroomid_highlightcount: Arc<dyn KvTree>,    // HightlightCount = u64
+    pub(super) roomuserid_lastnotificationread: Arc<dyn KvTree>, // LastNotificationRead = u64
 
     /// Remember the current state hash of a room.
     pub(super) roomid_shortstatehash: Arc<dyn KvTree>,
@@ -317,6 +318,7 @@ impl KeyValueDatabase {
 
             userroomid_notificationcount: builder.open_tree("userroomid_notificationcount")?,
             userroomid_highlightcount: builder.open_tree("userroomid_highlightcount")?,
+            roomuserid_lastnotificationread: builder.open_tree("userroomid_highlightcount")?,
 
             statekey_shortstatekey: builder.open_tree("statekey_shortstatekey")?,
             shortstatekey_statekey: builder.open_tree("shortstatekey_statekey")?,

src/service/rooms/user/data.rs

@@ -8,6 +8,9 @@ pub trait Data: Send + Sync {
 
     fn highlight_count(&self, user_id: &UserId, room_id: &RoomId) -> Result<u64>;
 
+    // Returns the count at which the last reset_notification_counts was called
+    fn last_notification_read(&self, user_id: &UserId, room_id: &RoomId) -> Result<u64>;
+
     fn associate_token_shortstatehash(
         &self,
         room_id: &RoomId,

src/service/rooms/user/mod.rs

@@ -22,6 +22,10 @@ impl Service {
         self.db.highlight_count(user_id, room_id)
     }
 
+    pub fn last_notification_read(&self, user_id: &UserId, room_id: &RoomId) -> Result<u64> {
+        self.db.last_notification_read(user_id, room_id)
+    }
+
     pub fn associate_token_shortstatehash(
         &self,
         room_id: &RoomId,