Stage 11: account linking & merge (email + Telegram Login Widget) (#12)

backend/internal/session/store.go

@@ -110,6 +110,34 @@ func (s *Store) RevokeByTokenHash(ctx context.Context, tokenHash string, at time
 	return modelToSession(row), true, nil
 }
 
+// RevokeAllForAccount transitions every active session of accountID to revoked
+// and returns the post-update rows (so the caller can evict them from the cache).
+// It backs the account-merge flow, which retires a secondary account's sessions
+// (Stage 11). No matching rows is not an error.
+func (s *Store) RevokeAllForAccount(ctx context.Context, accountID uuid.UUID, at time.Time) ([]Session, error) {
+	stmt := table.Sessions.
+		UPDATE(table.Sessions.Status, table.Sessions.RevokedAt).
+		SET(postgres.String(StatusRevoked), postgres.TimestampzT(at)).
+		WHERE(
+			table.Sessions.AccountID.EQ(postgres.UUID(accountID)).
+				AND(table.Sessions.Status.EQ(postgres.String(StatusActive))),
+		).
+		RETURNING(table.Sessions.AllColumns)
+
+	var rows []model.Sessions
+	if err := stmt.QueryContext(ctx, s.db, &rows); err != nil {
+		if errors.Is(err, qrm.ErrNoRows) {
+			return nil, nil
+		}
+		return nil, fmt.Errorf("session: revoke all for account %s: %w", accountID, err)
+	}
+	out := make([]Session, 0, len(rows))
+	for _, row := range rows {
+		out = append(out, modelToSession(row))
+	}
+	return out, nil
+}
+
 // ListActive loads every active session. Cache.Warm calls this at boot.
 func (s *Store) ListActive(ctx context.Context) ([]Session, error) {
 	stmt := postgres.SELECT(table.Sessions.AllColumns).