Refactor notifications (#2688)

This PR changes the handling of notifications
- removes the `StreamEvent` and `ReadUpdate` stream
- listens on the `OutputRoomEvent` stream in the UserAPI to inform the
SyncAPI about unread notifications
- listens on the `OutputReceiptEvent` stream in the UserAPI to set
receipts/update notifications
- sets the `read_markers` directly from within the internal UserAPI

Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>

1 files changed, 12 insertions, 39 deletions

diff --git a/userapi/storage/postgres/notifications_table.go b/userapi/storage/postgres/notifications_table.go
index a27c1125..24a30b2f 100644
--- a/userapi/storage/postgres/notifications_table.go
+++ b/userapi/storage/postgres/notifications_table.go
@@ -20,12 +20,13 @@ import (
 	"encoding/json"
 	"time"
 
+	"github.com/matrix-org/gomatrixserverlib"
+	log "github.com/sirupsen/logrus"
+
 	"github.com/matrix-org/dendrite/internal"
 	"github.com/matrix-org/dendrite/internal/sqlutil"
 	"github.com/matrix-org/dendrite/userapi/api"
 	"github.com/matrix-org/dendrite/userapi/storage/tables"
-	"github.com/matrix-org/gomatrixserverlib"
-	log "github.com/sirupsen/logrus"
 )
 
 type notificationsStatements struct {
@@ -110,7 +111,7 @@ func (s *notificationsStatements) Clean(ctx context.Context, txn *sql.Tx) error
 }
 
 // Insert inserts a notification into the database.
-func (s *notificationsStatements) Insert(ctx context.Context, txn *sql.Tx, localpart, eventID string, pos int64, highlight bool, n *api.Notification) error {
+func (s *notificationsStatements) Insert(ctx context.Context, txn *sql.Tx, localpart, eventID string, pos uint64, highlight bool, n *api.Notification) error {
 	roomID, tsMS := n.RoomID, n.TS
 	nn := *n
 	// Clears out fields that have their own columns to (1) shrink the
@@ -126,7 +127,7 @@ func (s *notificationsStatements) Insert(ctx context.Context, txn *sql.Tx, local
 }
 
 // DeleteUpTo deletes all previous notifications, up to and including the event.
-func (s *notificationsStatements) DeleteUpTo(ctx context.Context, txn *sql.Tx, localpart, roomID string, pos int64) (affected bool, _ error) {
+func (s *notificationsStatements) DeleteUpTo(ctx context.Context, txn *sql.Tx, localpart, roomID string, pos uint64) (affected bool, _ error) {
 	res, err := sqlutil.TxStmt(txn, s.deleteUpToStmt).ExecContext(ctx, localpart, roomID, pos)
 	if err != nil {
 		return false, err
@@ -140,7 +141,7 @@ func (s *notificationsStatements) DeleteUpTo(ctx context.Context, txn *sql.Tx, l
 }
 
 // UpdateRead updates the "read" value for an event.
-func (s *notificationsStatements) UpdateRead(ctx context.Context, txn *sql.Tx, localpart, roomID string, pos int64, v bool) (affected bool, _ error) {
+func (s *notificationsStatements) UpdateRead(ctx context.Context, txn *sql.Tx, localpart, roomID string, pos uint64, v bool) (affected bool, _ error) {
 	res, err := sqlutil.TxStmt(txn, s.updateReadStmt).ExecContext(ctx, v, localpart, roomID, pos)
 	if err != nil {
 		return false, err
@@ -196,40 +197,12 @@ func (s *notificationsStatements) Select(ctx context.Context, txn *sql.Tx, local
 	return notifs, maxID, rows.Err()
 }
 
-func (s *notificationsStatements) SelectCount(ctx context.Context, txn *sql.Tx, localpart string, filter tables.NotificationFilter) (int64, error) {
-	rows, err := sqlutil.TxStmt(txn, s.selectCountStmt).QueryContext(ctx, localpart, uint32(filter))
-
-	if err != nil {
-		return 0, err
-	}
-	defer internal.CloseAndLogIfError(ctx, rows, "notifications.Select: rows.Close() failed")
-
-	if rows.Next() {
-		var count int64
-		if err := rows.Scan(&count); err != nil {
-			return 0, err
-		}
-
-		return count, nil
-	}
-	return 0, rows.Err()
+func (s *notificationsStatements) SelectCount(ctx context.Context, txn *sql.Tx, localpart string, filter tables.NotificationFilter) (count int64, err error) {
+	err = sqlutil.TxStmt(txn, s.selectCountStmt).QueryRowContext(ctx, localpart, uint32(filter)).Scan(&count)
+	return
 }
 
-func (s *notificationsStatements) SelectRoomCounts(ctx context.Context, txn *sql.Tx, localpart, roomID string) (total int64, highlight int64, _ error) {
-	rows, err := sqlutil.TxStmt(txn, s.selectRoomCountsStmt).QueryContext(ctx, localpart, roomID)
-
-	if err != nil {
-		return 0, 0, err
-	}
-	defer internal.CloseAndLogIfError(ctx, rows, "notifications.Select: rows.Close() failed")
-
-	if rows.Next() {
-		var total, highlight int64
-		if err := rows.Scan(&total, &highlight); err != nil {
-			return 0, 0, err
-		}
-
-		return total, highlight, nil
-	}
-	return 0, 0, rows.Err()
+func (s *notificationsStatements) SelectRoomCounts(ctx context.Context, txn *sql.Tx, localpart, roomID string) (total int64, highlight int64, err error) {
+	err = sqlutil.TxStmt(txn, s.selectRoomCountsStmt).QueryRowContext(ctx, localpart, roomID).Scan(&total, &highlight)
+	return
 }