From 696687f60c81d695e37082ef177e6544d4ad21bc Mon Sep 17 00:00:00 2001
From: Tulir Asokan <tulir@maunium.net>
Date: Sat, 15 Mar 2025 12:32:31 +0200
Subject: [PATCH] hicli/sync: ignore failing to recalculate preview

---
 pkg/hicli/database/room.go | 3 +++
 pkg/hicli/sync.go          | 9 +++++----
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/pkg/hicli/database/room.go b/pkg/hicli/database/room.go
index 31eeb5f..8c000c8 100644
--- a/pkg/hicli/database/room.go
+++ b/pkg/hicli/database/room.go
@@ -132,6 +132,9 @@ func (rq *RoomQuery) UpdatePreviewIfLaterOnTimeline(ctx context.Context, roomID
 
 func (rq *RoomQuery) RecalculatePreview(ctx context.Context, roomID id.RoomID) (rowID EventRowID, err error) {
 	err = rq.GetDB().QueryRow(ctx, recalculateRoomPreviewEventQuery, roomID).Scan(&rowID)
+	if errors.Is(err, sql.ErrNoRows) {
+		err = nil
+	}
 	return
 }
 
diff --git a/pkg/hicli/sync.go b/pkg/hicli/sync.go
index 2acf12d..0d8e86c 100644
--- a/pkg/hicli/sync.go
+++ b/pkg/hicli/sync.go
@@ -969,10 +969,11 @@ func (h *HiClient) processStateAndTimeline(
 		updatedRoom.PreviewEventRowID, err = h.DB.Room.RecalculatePreview(ctx, room.ID)
 		if err != nil {
 			return fmt.Errorf("failed to recalculate preview event: %w", err)
-		}
-		_, err = addOldEvent(updatedRoom.PreviewEventRowID, "")
-		if err != nil {
-			return fmt.Errorf("failed to get preview event: %w", err)
+		} else if updatedRoom.PreviewEventRowID != 0 {
+			_, err = addOldEvent(updatedRoom.PreviewEventRowID, "")
+			if err != nil {
+				return fmt.Errorf("failed to get preview event: %w", err)
+			}
 		}
 	}
 	// Calculate name from participants if participants changed and current name was generated from participants, or if the room name was unset