todo-app/tool
Krzysztof kuhy Rudnicki b9d9ac6521 Migrate notes storage from sqlite_crdt to the shared crdt_sync LogStore
NoteRepository is rewritten on crdt_sync's LogStore: each Note is stored *as*
a Record (per-field LWW + sticky tombstone), so the on-disk log IS the sync
wire format. Its public API is unchanged (upsert/delete/listNotes/watchNotes/
watchCount/importNotes/changes/nodeId), so the UI and most tests are
untouched; only the internals, the two sync methods (getChangeset/merge ->
exportLog/importLog over a Log), and the changeset-specific tests change.
Filtering/sorting now run in Dart over the in-memory log; watchNotes/watchCount
seed synchronously in onListen to avoid a subscription race.

SyncService moves from per-device sqlite changesets to per-device crdt_sync
Logs under a new todo-sync/notes/ path (clean format cutover; old clients
can't misread a new file). todo's own GitHubClient transport is kept.

One-time migration in NoteRepository.open: reads the legacy sqlite DB (kept
untouched as a safety net; the dep stays only for this), seeds every note --
tombstones included -- into the log with each field's HLC derived from its
updated_at (so a pre-cutover edit still wins by real edit time across two
independently-migrating devices), reuses the legacy node id, and sets a
persisted "migrated" flag so it never re-runs.

Verified: flutter analyze + dart format clean; 178 tests at 100% coverage
(incl. migration, tombstone, restore-race, and corrupt-peer cases). Device
verified on dev.kuhy.todo: real backlog of 27 live notes (+5 tombstones)
migrated intact -- confirmed against a pulled sqlite backup, the pulled
LogStore JSON, and the app's own "27 saved" -- notes render with status/
priority/dates, no crash, migration one-time.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019KwUCPESvE5CjCtmUFz8xQ
2026-07-11 23:28:54 +02:00
..
device_flow_check.dart Point notes sync at the consolidated syncs monorepo 2026-07-10 14:04:05 +02:00
sync_smoke.dart Migrate notes storage from sqlite_crdt to the shared crdt_sync LogStore 2026-07-11 23:28:54 +02:00