MM-62751: [Shared Channels] Allow remote users to be discoverable in the create DM/GM modal (#30918)

server/channels/store/sqlstore/remote_cluster_store.go

@@ -44,6 +44,7 @@ func remoteClusterFields(prefix string) []string {
 		prefix + "CreatorId",
 		prefix + "PluginID",
 		prefix + "Options",
+		prefix + "LastGlobalUserSyncAt",
 	}
 }
 
@@ -99,7 +100,8 @@ func (s sqlRemoteClusterStore) Update(remoteCluster *model.RemoteCluster) (*mode
 			DefaultTeamId = :DefaultTeamId,
 			Topics = :Topics,
 			PluginID = :PluginID,
-			Options = :Options
+			Options = :Options,
+			LastGlobalUserSyncAt = :LastGlobalUserSyncAt
 			WHERE RemoteId = :RemoteId AND Name = :Name`
 
 	if _, err := s.GetMaster().NamedExec(query, remoteCluster); err != nil {
@@ -310,3 +312,24 @@ func (s sqlRemoteClusterStore) SetLastPingAt(remoteClusterId string) error {
 	}
 	return nil
 }
+
+func (s sqlRemoteClusterStore) UpdateLastGlobalUserSyncAt(remoteID string, syncAt int64) error {
+	query := s.getQueryBuilder().
+		Update("RemoteClusters").
+		Set("LastGlobalUserSyncAt", syncAt).
+		Where(sq.Eq{"RemoteId": remoteID})
+
+	result, err := s.GetMaster().ExecBuilder(query)
+	if err != nil {
+		return errors.Wrap(err, "failed to update LastGlobalUserSyncAt for RemoteCluster")
+	}
+
+	count, err := result.RowsAffected()
+	if err != nil {
+		return errors.Wrap(err, "failed to determine rows affected")
+	}
+	if count == 0 {
+		return fmt.Errorf("remote cluster not found: %s", remoteID)
+	}
+	return nil
+}

server/channels/store/sqlstore/user_store.go

@@ -584,8 +584,15 @@ func (us SqlUserStore) GetEtagForAllProfiles() string {
 
 func (us SqlUserStore) GetAllProfiles(options *model.UserGetOptions) ([]*model.User, error) {
 	isPostgreSQL := us.DriverName() == model.DatabaseDriverPostgres
+
+	// Determine ordering based on Sort option - default to Username ASC for backwards compatibility
+	orderBy := "Users.Username ASC"
+	if options.Sort == "update_at_asc" {
+		orderBy = "Users.UpdateAt ASC"
+	}
+
 	query := us.usersQuery.
-		OrderBy("Users.Username ASC").
+		OrderBy(orderBy).
 		Offset(uint64(options.Page * options.PerPage)).Limit(uint64(options.PerPage))
 
 	query = applyViewRestrictionsFilter(query, options.ViewRestrictions, true)
@@ -599,6 +606,10 @@ func (us SqlUserStore) GetAllProfiles(options *model.UserGetOptions) ([]*model.U
 		query = query.Where("Users.DeleteAt = 0")
 	}
 
+	if options.UpdatedAfter > 0 {
+		query = query.Where(sq.Gt{"Users.UpdateAt": options.UpdatedAfter})
+	}
+
 	users := []*model.User{}
 	if err := us.GetReplica().SelectBuilder(&users, query); err != nil {
 		return nil, errors.Wrap(err, "failed to get User profiles")