Raw-IndexedDB cache (lotus-search-cache: messages keyed [roomId,eventId] + per-room coverage) merged into local search with in-memory-wins dedupe. OPT-IN (default off) via a standalone atom — stores decrypted text at rest, so it ships with a privacy note, a Clear button, and an unconditional wipe on logout (initMatrix). All IDB errors degrade to cache-miss. +8 tests (1 IDB skip in node). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
25 lines
1002 B
TypeScript
25 lines
1002 B
TypeScript
import {
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atomWithLocalStorage,
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getLocalStorageItem,
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setLocalStorageItem,
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} from './utils/atomWithLocalStorage';
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const SEARCH_CACHE_ENABLED = 'searchCacheEnabled';
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/**
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* P4-8 — persistent encrypted-search cache opt-in flag (default `false`).
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*
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* Standalone, `localStorage`-backed boolean atom kept separate from
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* `state/settings.ts` on purpose. When `true`, encrypted-room search persists a
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* decrypted plaintext index to IndexedDB (`lotus-search-cache`) so coverage
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* survives reloads. Because this writes decrypted plaintext at rest it must be
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* explicitly opted into; the cache is clearable from the search UI and wiped on
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* logout. Toggling this atom off stops all reads/writes but does NOT wipe
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* existing data — that is the explicit "Clear cached index" button / logout.
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*/
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export const searchCacheEnabledAtom = atomWithLocalStorage<boolean>(
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SEARCH_CACHE_ENABLED,
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(key) => getLocalStorageItem<boolean>(key, false),
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(key, value) => setLocalStorageItem(key, value),
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);
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