Local-first chat between people whose web of trust is still forming is a
natural phishing/scam vector, so messages may not contain URLs. A
conservative `containsUrl` rule (explicit scheme, www., or a common-TLD
domain — but not "3.5kg" or "12.30") gates it: the composer warns and
keeps the text for editing, and MessagesCubit.send drops any URL as a
backstop. Incoming text was already non-tappable (plain selectable text).
- Anchor the message list to the bottom (`reverse: true`) so new messages
stay in view instead of landing below the fold.
- Move chat history from the OS keystore (O(n²) JSON blob, silent 200-msg
cap) to a separate encrypted Drift/SQLCipher DB (`ChatDatabase`):
indexed append, uncapped history, dedup as a unique-key invariant. It's
an ephemeral per-device cache, isolated from the inventory schema, its
migrations, and its sync. No data migration (pre-release).
- Add day separators (Today/Yesterday/locale date) and a per-bubble time,
all via ICU (12/24h per locale; Localizations locale maps Asturian →
Spanish for intl date symbols).
- Add peer avatars (deterministic colour from the pubkey + name initial),
surface send failures that were previously silent, and make bubble text
selectable (addresses, links).
- New i18n keys in en/es/pt/ast; tests for grouping, formatting, avatars,
scroll anchoring, storage and send errors.
Docs: docs/design/chat-storage.md + open-decisions.md.
Duplicated bubbles came from the cubit emitting every inbox event to the
screen regardless of whether it was already shown. On opening a chat the
saved message loads from history AND the live subscription hands back the
same stored gift wrap the relay re-delivers — two bubbles. (The store was
already idempotent, but the cubit ignored that for display.)
MessagesCubit now keeps a seen-set (sender+timestamp+text): a re-delivered
or already-loaded message is skipped, and pre-existing duplicates in old
saved history collapse on load too. Arrival order preserved (no resort).
Tests: re-delivered wrap shown once; history-raced-by-live shown once.
Messages were in-memory only — gone on leaving the conversation.
- MessageStore: keystore-backed (no plaintext), a capped per-peer JSON list
(last 200). Simple; the encrypted Drift DB is the eventual home at scale.
- MessagesCubit: loads saved history on start (subscribes FIRST, then loads, so
a message arriving during the load isn't dropped) and persists every sent and
received message. Wired via DI + TaneApp(messageStore).
Tests (plain 'test', no hang risk): MessageStore round-trip/per-peer/cap, and a
cubit test that reopens a fresh cubit and sees the saved conversation. Analyzer
clean; run 'flutter test' locally to confirm.
- MessagesCubit: 1:1 conversation over MessageTransport. Filters the shared
inbox to the peer; tags our own sends with our pubkey (NIP-17 wraps don't come
back to the sender) so the UI can align bubbles; degrades gracefully offline.
- ChatScreen (mockup 10): message bubbles (mine right / peer left) + a composer;
opens a session lazily, shows 'set up sharing' when there's no relay.
- Entry point: a 'Message' button on each offer card (hidden on your own
listings) → /chat/:pubkey.
- Routing + i18n en/es/pt.
Tests: 5 cubit (send/receive/order/filter/offline) + chat offline + market, green.
