Add study data client adapter

CHANGELOG.md

@@ -3,6 +3,7 @@
 ## Unreleased
 
 - Recorded the active development direction: use the local HotView/hot-reload setup for iterative app work and defer web/local builds and hosted deployment unless explicitly requested.
+- Started Phase 4 shared app core cleanup by adding an explicit `StudyDataClient` contract and browser/Tauri data adapters behind the existing study client API.
 
 ## 0.1.31 - 2026-07-15
 

ROADMAP.md

@@ -118,9 +118,11 @@ Definition of done:
 
 Goal: stop treating local preview, hosted web, and Tauri as separate code paths.
 
+Current foundation note: `src/studyDataClient.ts` now defines the app-level resource/query contract, and `src/studyClient.ts` routes existing UI calls through browser and Tauri adapters. The browser adapter still owns the HotView JSON/JSONL package loading path, but the UI no longer needs to know which adapter is active.
+
 Tasks:
 
-- Extract a client/service interface for translations, pages, Strong's links, notes, commentaries, dictionaries, maps, audio, sessions, settings, and timelines.
+- Extract a client/service interface for translations, pages, Strong's links, notes, commentaries, dictionaries, maps, audio, sessions, settings, and timelines. Started with `StudyDataClient` for resource/query behavior.
 - Keep UI components pointed at that interface instead of hardcoding browser static paths or direct Tauri commands.
 - Define the session schema once: active translation, page anchor, selected verse, enabled resources, visual settings, notes, timeline, and exports.
 - Add a migration path from `localStorage` sessions to hosted persistence and Tauri SQLite persistence.

src/studyClient.ts

@@ -1,6 +1,7 @@
 import { invoke } from '@tauri-apps/api/core'
 import JSZip from 'jszip'
 import { buildVerseSearchIndex } from './searchIndex'
+import type { StudyDataClient, TranslationNotesByVerse } from './studyDataClient'
 import type {
   AudioBibleContext,
   AudioBibleSegment,
@@ -352,9 +353,7 @@ function allBrowserTags() {
   return [...unique.values()].sort((a, b) => a.label.localeCompare(b.label))
 }
 
-export async function getTranslations(): Promise<TranslationResource[]> {
-  if (inTauri()) return []
-
+async function getBrowserTranslations(): Promise<TranslationResource[]> {
   const catalog = await loadBrowserCatalog()
   return catalog.resources
     .filter((resource) => resource.resource_type === 'translation')
@@ -369,22 +368,18 @@ export async function getTranslations(): Promise<TranslationResource[]> {
     }))
 }
 
-export async function getLibraryState(translationId = defaultTranslationId): Promise<LibraryState> {
-  if (inTauri()) {
-    return invoke<LibraryState>('get_library_state')
-  }
-
+async function getBrowserLibraryState(translationId = defaultTranslationId): Promise<LibraryState> {
   return {
     verses: await loadBrowserVersesForTranslation(translationId),
     tags: allBrowserTags(),
   }
 }
 
-export async function getTranslationNotesForVerses(
+async function getBrowserTranslationNotesForVerses(
   translationId: string,
   verses: Verse[],
-): Promise<Map<string, { footnotes: Footnote[]; studyNotes: Footnote[] }>> {
-  if (inTauri() || verses.length === 0) return new Map()
+): Promise<TranslationNotesByVerse> {
+  if (verses.length === 0) return new Map()
 
   const chapterKeys = [
     ...new Set(
@@ -411,25 +406,17 @@ export async function getTranslationNotesForVerses(
   return notesByVerse
 }
 
-export async function searchVerses(query: string, translationId = defaultTranslationId): Promise<Verse[]> {
-  if (inTauri()) {
-    return invoke<Verse[]>('search_verses', { query })
-  }
-
+async function searchBrowserVerses(query: string, translationId = defaultTranslationId): Promise<Verse[]> {
   const searchIndex = await loadBrowserSearchIndex(translationId)
   return searchIndex.search(query)
 }
 
-export async function addTagToVerse(
+async function addBrowserTagToVerse(
   verseId: number,
   label: string,
   color: string,
   translationId = defaultTranslationId,
 ) {
-  if (inTauri()) {
-    return invoke<Verse>('add_tag_to_verse', { verseId, label, color })
-  }
-
   const tagsByVerse = readBrowserTags()
   const current = tagsByVerse[verseId] ?? []
   const existing = current.find((tag) => tag.label.toLowerCase() === label.toLowerCase())
@@ -443,9 +430,7 @@ export async function addTagToVerse(
   return verse
 }
 
-export async function getCommentaryForVerse(verse: Verse): Promise<CommentaryEntry[]> {
-  if (inTauri()) return []
-
+async function getBrowserCommentaryForVerse(verse: Verse): Promise<CommentaryEntry[]> {
   const commentary = await loadBrowserCommentary()
   const chapterEntries = commentary.get(commentaryKey(verse.book, verse.chapter)) ?? []
   return chapterEntries.filter(
@@ -453,9 +438,7 @@ export async function getCommentaryForVerse(verse: Verse): Promise<CommentaryEnt
   )
 }
 
-export async function getDictionaryEntriesForTerms(terms: string[]): Promise<DictionaryEntry[]> {
-  if (inTauri()) return []
-
+async function getBrowserDictionaryEntriesForTerms(terms: string[]): Promise<DictionaryEntry[]> {
   const dictionary = await loadBrowserDictionary()
   const seen = new Set<string>()
   const entries: DictionaryEntry[] = []
@@ -472,14 +455,10 @@ export async function getDictionaryEntriesForTerms(terms: string[]): Promise<Dic
   return entries
 }
 
-export async function getMapContextForVerses(
+async function getBrowserMapContextForVerses(
   selectedVerse: Verse,
   pageVerses: Verse[],
 ): Promise<MapContext> {
-  if (inTauri()) {
-    return { selectedPlaces: [], pagePlaces: [], relatedRoutes: [] }
-  }
-
   const versePlaces = await loadBrowserVersePlaces()
   const selectedVerseId = browserVerseKey(selectedVerse)
   const pageVerseIds = new Set(pageVerses.map((verse) => browserVerseKey(verse)).filter(Boolean))
@@ -496,12 +475,10 @@ export async function getMapContextForVerses(
   }
 }
 
-export async function getAudioContextForVerse(
+async function getBrowserAudioContextForVerse(
   translationId: string,
   verse: Verse,
 ): Promise<AudioBibleContext | null> {
-  if (inTauri()) return null
-
   const catalog = await loadBrowserCatalog()
   const resource = catalog.resources.find(
     (item) =>
@@ -547,7 +524,7 @@ export async function getAudioContextForVerse(
   }
 }
 
-export async function getAudioObjectUrl(segment: AudioBibleSegment): Promise<string> {
+async function getBrowserAudioObjectUrl(segment: AudioBibleSegment): Promise<string> {
   const cacheKey = `${segment.audioZipUrl}#${segment.audioEntryPath}`
   if (!browserAudioObjectUrlCache.has(cacheKey)) {
     browserAudioObjectUrlCache.set(
@@ -566,6 +543,95 @@ export async function getAudioObjectUrl(segment: AudioBibleSegment): Promise<str
   return browserAudioObjectUrlCache.get(cacheKey)!
 }
 
+const emptyMapContext: MapContext = {
+  selectedPlaces: [],
+  pagePlaces: [],
+  relatedRoutes: [],
+}
+
+const browserStudyDataClient: StudyDataClient = {
+  getTranslations: getBrowserTranslations,
+  getLibraryState: getBrowserLibraryState,
+  getTranslationNotesForVerses: getBrowserTranslationNotesForVerses,
+  searchVerses: searchBrowserVerses,
+  addTagToVerse: addBrowserTagToVerse,
+  getCommentaryForVerse: getBrowserCommentaryForVerse,
+  getDictionaryEntriesForTerms: getBrowserDictionaryEntriesForTerms,
+  getMapContextForVerses: getBrowserMapContextForVerses,
+  getAudioContextForVerse: getBrowserAudioContextForVerse,
+  getAudioObjectUrl: getBrowserAudioObjectUrl,
+}
+
+const tauriStudyDataClient: StudyDataClient = {
+  getTranslations: async () => [],
+  getLibraryState: () => invoke<LibraryState>('get_library_state'),
+  getTranslationNotesForVerses: async () => new Map(),
+  searchVerses: (query) => invoke<Verse[]>('search_verses', { query }),
+  addTagToVerse: (verseId, label, color) => invoke<Verse>('add_tag_to_verse', { verseId, label, color }),
+  getCommentaryForVerse: async () => [],
+  getDictionaryEntriesForTerms: async () => [],
+  getMapContextForVerses: async () => emptyMapContext,
+  getAudioContextForVerse: async () => null,
+  getAudioObjectUrl: async () => {
+    throw new Error('Audio object URLs are not available in the Tauri data adapter yet.')
+  },
+}
+
+export function getStudyDataClient(): StudyDataClient {
+  return inTauri() ? tauriStudyDataClient : browserStudyDataClient
+}
+
+export function getTranslations(): Promise<TranslationResource[]> {
+  return getStudyDataClient().getTranslations()
+}
+
+export function getLibraryState(translationId = defaultTranslationId): Promise<LibraryState> {
+  return getStudyDataClient().getLibraryState(translationId)
+}
+
+export function getTranslationNotesForVerses(
+  translationId: string,
+  verses: Verse[],
+): Promise<TranslationNotesByVerse> {
+  return getStudyDataClient().getTranslationNotesForVerses(translationId, verses)
+}
+
+export function searchVerses(query: string, translationId = defaultTranslationId): Promise<Verse[]> {
+  return getStudyDataClient().searchVerses(query, translationId)
+}
+
+export function addTagToVerse(
+  verseId: number,
+  label: string,
+  color: string,
+  translationId = defaultTranslationId,
+) {
+  return getStudyDataClient().addTagToVerse(verseId, label, color, translationId)
+}
+
+export function getCommentaryForVerse(verse: Verse): Promise<CommentaryEntry[]> {
+  return getStudyDataClient().getCommentaryForVerse(verse)
+}
+
+export function getDictionaryEntriesForTerms(terms: string[]): Promise<DictionaryEntry[]> {
+  return getStudyDataClient().getDictionaryEntriesForTerms(terms)
+}
+
+export function getMapContextForVerses(selectedVerse: Verse, pageVerses: Verse[]): Promise<MapContext> {
+  return getStudyDataClient().getMapContextForVerses(selectedVerse, pageVerses)
+}
+
+export function getAudioContextForVerse(
+  translationId: string,
+  verse: Verse,
+): Promise<AudioBibleContext | null> {
+  return getStudyDataClient().getAudioContextForVerse(translationId, verse)
+}
+
+export function getAudioObjectUrl(segment: AudioBibleSegment): Promise<string> {
+  return getStudyDataClient().getAudioObjectUrl(segment)
+}
+
 async function loadBrowserCatalog(): Promise<ImportedCatalog> {
   browserCatalogCache ??= fetchJson<ImportedCatalog>(`${libreBibleDevRoot}/catalog.json`)
   return browserCatalogCache

src/studyDataClient.ts

@@ -0,0 +1,26 @@
+import type {
+  AudioBibleContext,
+  AudioBibleSegment,
+  CommentaryEntry,
+  DictionaryEntry,
+  Footnote,
+  LibraryState,
+  MapContext,
+  TranslationResource,
+  Verse,
+} from './types'
+
+export type TranslationNotesByVerse = Map<string, { footnotes: Footnote[]; studyNotes: Footnote[] }>
+
+export type StudyDataClient = {
+  getTranslations(): Promise<TranslationResource[]>
+  getLibraryState(translationId?: string): Promise<LibraryState>
+  getTranslationNotesForVerses(translationId: string, verses: Verse[]): Promise<TranslationNotesByVerse>
+  searchVerses(query: string, translationId?: string): Promise<Verse[]>
+  addTagToVerse(verseId: number, label: string, color: string, translationId?: string): Promise<Verse>
+  getCommentaryForVerse(verse: Verse): Promise<CommentaryEntry[]>
+  getDictionaryEntriesForTerms(terms: string[]): Promise<DictionaryEntry[]>
+  getMapContextForVerses(selectedVerse: Verse, pageVerses: Verse[]): Promise<MapContext>
+  getAudioContextForVerse(translationId: string, verse: Verse): Promise<AudioBibleContext | null>
+  getAudioObjectUrl(segment: AudioBibleSegment): Promise<string>
+}