When finding or extracting text in EPUB/KEPUB DOM trees, inline
formatting elements like <em>, <strong>, <i>, <b>, <span>, etc. should
not break text continuity. A reader sees 'Vokalia and Consonantia' as
one phrase regardless of the <em> wrappers around each word.
Add inline formatting element set and helper functions:
- isInlineFormatting: checks if an element is an inline phrasing element
- collectInlineText: flattens text across formatting elements within
a block-level parent, returning segments that map back to original
text nodes
- findBlockParent: walks up from a text node to find the nearest
block-level ancestor (used to scope text collection)
- findTextAcrossInlineElements: fallback for findTextInNode that
concatenates text within each block element (transparently crossing
formatting elements) and maps match positions back to actual nodes
- collectBlockElements: gathers all block-level elements containing text
The key invariant: text collection NEVER crosses block-level element
boundaries (<p>, <div>, <h1>-<h6>, <li>, etc.) to avoid concatenating
text from different paragraphs.
The findTextInNode function now tries single-text-node matching first
(fast path, unchanged), then falls back to cross-element matching only
when needed. This preserves performance for the common case.
Test coverage for KEPUBCFIConverter with programmatically generated
EPUB and KEPUB zip fixtures:
- KEPUB->Standard text search conversion (exact precision)
- Standard->KEPUB text search conversion with round-trip verification
- Multi-position round-trip (3 phrases across different paragraphs)
- Cross-chapter conversion (spine index 1)
- No-context-text conversion (extracts surrounding text from resolved node)
- Invalid CFI handling (falls back to percentage)
- Percentage fallback for unresolvable CFIs
- 5-paragraph round-trip covering different document positions
- CFI structural difference verification (koboSpan adds DOM steps)
- Spine index consistency between EPUB and KEPUB
- Real book conversion test (skips if file not present)
- extractSurroundingText unit tests
Add KEPUBCFIConverter in internal/sync that converts between KEPUB CFIs
(which include extra koboSpan DOM steps) and standard EPUB CFIs at sync
time, so only standard epubcfi values are stored in the database.
The converter works by:
1. Resolving the source CFI in the source document (EPUB or KEPUB)
2. Extracting surrounding text at the resolved position
3. Searching for that same text in the target document
4. Building a new CFI pointing to the matched text in the target
This text-content bridging handles the DOM structural differences
between EPUB (text nodes at depth 2) and KEPUB (text nodes wrapped in
<span class="koboSpan"> at depth 3).
Falls back to percentage-based positioning when text search fails,
matching the pattern used by the existing CRE converter.
No changes to existing cfi_converter.go or KOReader conversion code.
Same-package access to unexported functions (resolveCFIToNode, buildCFI,
findTextInNode, etc.) via internal/sync package placement.
- UpdateSystemConfiguration: when base_url changes, automatically
update opds_base_url and api_base_url derived configs
- convertPending: format time.Time as RFC3339 string instead of
relying on string type assertion which would panic
- Add <title> and <author><name> elements to Atom feed for compatibility
- Remove doubled /opds/opds/ path prefix in feed URLs
- Include ?token= auth param on all OPDS URLs
- Serve kepub links only for Kobo devices
- Fix URL construction for entries and acquisitions
Previously device creation happened in CheckRegistrationStatus (polling
endpoint), which was racy. Now the admin's ApproveDevice handler
creates the device record and stores auth token + device ID on the
registration entry. CheckRegistrationStatus just returns the pre-created
credentials.
Also adds approved/authToken/deviceID/syncEndpoints fields to
PendingRegistration struct.
When resolving a conflict, the last_sync_source is now set to the
winner's actual source name (koreader, web, etc.) rather than always
'manual'. This prevents subsequent saves from re-triggering conflicts.
Also removes the strict oneof validation on the winner field since
the source name is dynamic.
Web reader can now send surrounding text at current reading position.
Stored in reading_progress.context_text for use as CFI resolution
fallback when converting epubcfi to CREngine XPointer.
Forward (push): When KOReader pushes a CREngine XPointer, convert it
to standard epubcfi before storing. Uses CFIConverter.ConvertCREToStandard
with context_text for text search fallback.
Reverse (pull): When KOReader pulls progress, convert stored standard
epubcfi back to CREngine XPointer via CFIConverter.ConvertStandardToCRE.
Returns as koreader_xpointer field in GetMetadata response.
Other changes:
- updateProgressForBook: pass context_text to SaveProgress
- enqueueProgressForBook: pass context_text to queue
- KOReaderProgressData: add KoreaderXPointer field
- New convertCFIToXPointer helper method
- Wire libraryService in main.go for EPUB path resolution
- SaveProgressRequest: add ContextText field
- SaveProgress: carry existing ContextText from DB, overwrite when provided
- ProgressUpdate: add ContextText field for checkpoint sync
- SyncQueueProcessor: serialize/deserialize context_text in sync data
- buildProgressSnapshot: include context_text in snapshot data
Stores surrounding text (~100 chars) at the reader's current position.
Used as fallback for CFI resolution when converting between epubcfi
and CREngine XPointer formats.
Updates:
- schema.sql: add context_text TEXT column, update stored procedure
- queries.sql: add context_text to GetUniversalProgress and
UpdateUniversalProgress queries
- Regenerate sqlc Go code (models.go, querier.go, queries.sql.go)
Implements ConvertCREToStandard which converts CREngine XPointers
(e.g. /body/DocFragment[6]/body/div/p[47]/text().2399) to standard
epubcfi format (e.g. epubcfi(/6/12!/4/2[id]/4/1:7)).
Key components:
- indexChildNodes: faithful port of foliate-js's epubcfi.js algorithm
for computing CFI-compatible child node indices including virtual
positions, null positions between adjacent elements, and text chunks
- preprocessXHTML: converts XHTML self-closing tags (e.g. <a id="x"/>)
to open/close pairs so Go's HTML parser produces the same DOM as the
browser's XHTML parser
- buildCFI: walks up from a text node to body, computing CFI indices
at each level using indexChildNodes
- findTextInNode: regex-based whitespace-flexible text search for
context_text fallback positioning
- convertByPercentageOffset: estimates position via book-wide character
counts when no context_text is available
- ConvertCREToStandard: orchestrates text search → percentage fallback
Supports CREngine XPointer format, CREngine fragment ID format
(#_doc_fragment_N_anchor), and includes round-trip test coverage for
1984 and Crime and Punishment EPUBs.
The cases.Title caser panicked with 'slice bounds out of range' when
processing certain Unicode characters that expand during case transformation
(e.g. ß → SS). This panic crashed the entire server during scanning, causing
WebSocket disconnections and failed scan requests.
Regenerated database code after sqlc version upgrade from v1.30.0 to
v1.31.1. No functional changes — only the version header in generated
files was updated.
Files: db.go, models.go, querier.go, queries.sql.go
- helpers.go: Promote getText() from a local closure in frontend.go
to a package-level function so it can be used by resolveLibrary.
Add resolveLibrary(c, cfg, user.ID) helper that:
1. Reads library_id query param (explicit navigation wins)
2. Falls back to selectedLibrary cookie — validates __all__
sentinel or real UUID, rejects garbage values silently
3. Falls back to user's first visible library
Returns LibraryResolution struct with LibraryID, IsAll, LibUUID,
Libraries, and FirstID — eliminating repeated boilerplate across
all SSR routes.
- frontend.go: Replace manual library resolution boilerplate in 5
SSR route handlers (series, tags/detail, bookshelf, dashboard,
collections/:id) with resolveLibrary(). Each route now gets cookie-
aware library selection for free. Collection detail correctly
handles All Libraries mode for both system and user collections.
Dashboard no longer makes a redundant second GetUserVisibleLibraries
call.
- dashboard.go: library_id query param is now optional. Empty/missing
library_id is passed as pgtype.UUID{Valid: false} to the service
layer, enabling All Libraries mode.
- series.go: library_id is optional for series listing. GetSeriesBooks
no longer receives a libraryID — it always returns all books in a
series regardless of library.
- collections.go: Restructure GetCollection to handle system
collections (query_type != "") with an optional libraryID. When
libraryID is empty (All Libraries), GetDashboardSections receives
pgtype.UUID{Valid: false} so no library filter is applied.
- dashboard_service.go: Change libraryID parameter from uuid.UUID to
pgtype.UUID across GetDashboardSections, GetDashboardPreferences,
and all helper methods. pgtype.UUID{Valid: false} now signals
"no library filter" (All Libraries), which gets passed through
to sqlc.narg() in the SQL layer.
- series_service.go: Drop libraryID parameter from GetSeriesBooks
entirely. Series are not library-specific — all books in a series
are shown regardless of which library they belong to.
Convert 12 SQL queries to use sqlc.narg('library_id') instead of
direct @library_id parameters. This allows passing a NULL/invalid
pgtype.UUID to mean "no library filter" (i.e., All Libraries),
making the SQL layer correctly handle the optional filter via:
(sqlc.narg('library_id')::uuid IS NULL
OR mi.library_id = sqlc.narg('library_id')::uuid)
Also remove the library_id filter from GetSeriesBooks entirely —
a series is a series regardless of library.
Queries affected:
- GetDashboardSections, GetRecentlyAdded, GetInProgress
- GetHighestRated, GetMostRead, GetAbandonedBooks
- GetLeastRead, GetBooksByTag, GetCollectionItemsForDashboard
- SearchMediaItemsUnified, GetSeriesCardsData
Generated code (queries.sql.go, querier.go) regenerated via sqlc.
Update frontend route handlers for /collections and /collections/:id
to fetch user-visible libraries and pass libData + currentLibraryID
to templates, enabling the library switcher dropdown.
/collections handler:
- Fetch GetUserVisibleLibraries for the current user
- Derive currentLibraryID from query param, falling back to first library
- Convert to []templates.LibraryData and pass to Collection template
/collections/:id handler:
- Fetch GetUserVisibleLibraries alongside existing book fetching
- Pass libData to CollectionDetail template alongside existing libraryID
- Refactored to use shared libraryID variable across system/user paths
Add optional library_id query parameter support to GetCollections and
GetCollection API handlers for library-scoped book filtering.
GetCollections (GET /api/collections?library_id=X):
- When library_id is provided, include per-library book_count in the
response by querying GetCollectionItemsForDashboard for each collection
- When omitted, returns all collections as before (backward compatible)
- Added BookCount field to CollectionResponse struct
GetCollection (GET /api/collections/:id?library_id=X):
- System collections (non-empty QueryType): uses DashboardService to
fetch library-scoped sections, matching the existing SSR handler logic
- User collections: uses GetCollectionItemsForDashboard for
library-filtered results, excluding soft-deleted items
- When library_id is omitted, returns all books as before
The MessageTypeScanComplete constant existed but was never actually sent by
the worker. This meant the frontend had no way to know when a scan finished.
- After a JobTypeScan completes, broadcast scan_complete to the job's user
via WebSocket ConnectionManager
- Includes job_id, files_scanned, new_items, and errors in the payload
- Only broadcasts for JobTypeScan (not other job types) when connManager
is available and job.UserID is set
When an admin was deleted, the ON DELETE SET NULL foreign key would set
created_by_admin_id to NULL on all their libraries. This caused the scanner
to fail to find an admin ID for broadcasting scan-complete WebSocket messages.
- On admin deletion, reassign all libraries and media items to the next admin
- Prevents created_by_admin_id from ever being NULL on active libraries
- Uses new ReassignLibraries and ReassignMediaItems DB queries
AllowedExtensions in Go was the intended single source of truth for library
type file extensions, but it was never synced to the database. This caused
missing extensions like .pdf for manga to be absent from library_types.
- Add SyncAllowedExtensions() to sync Go AllowedExtensions map to DB
- Call SyncAllowedExtensions() from cmd/server/main.go on startup
- Ensure .pdf is included in manga extensions
The root cause of scanner failures in Podman containers was NOT that
inotify doesn't work through bind mounts (it does — same kernel, same
inodes). The real bug was SetFolders() only watching root directories.
Linux has no recursive inotify — every subdirectory must be added
individually to the watcher.
Changes:
- SetFolders() now walks all subdirectories and adds each to the watcher
(same approach as Audiobookshelf/Kavita)
- Remove broken mtime-based detection: seedDirectoryMtimes,
pollDirectoryChanges, detectChangedRoots, checkDirectoryMtimes,
SyncFilesystemWithDatabase — all unreliable in container overlay mounts
- Replace StartPolling with startBackupScan: enqueues full JobTypeScan
every 5 minutes (down from 30) as a safety-net fallback
- enqueueLibraryScan() sets job.UserID from admin ID so the worker can
broadcast WebSocket messages
- performInitialScan() sets job.UserID for the same reason
- Add [WATCHER] prefix logging to all fsnotify event loop messages
- Add defense-in-depth: fallback to GetFirstAdmin() when library has
no created_by_admin_id (NULL from test cleanup)
- Fix processDirectoryScanJob to use prefix-match (GetLibraryByFolderPathPrefix)
- Fix nil context panic: all jobs now set Context: context.Background()
- Remove mtime-related tests; update default interval test from 30m to 5m
The created_at column stores file modification time (intentional for preserving
original metadata), but this makes 'Recently Added' sorting unreliable for
imported files. Add imported_at column that records the actual database insert
timestamp.
Changes:
- Add imported_at TIMESTAMPTZ column to media_items (nullable)
- Update GetRecentlyAddedItems to sort by imported_at DESC NULLS LAST first
- Add ReassignLibraries and ReassignMediaItems queries for admin deletion handover
- Add SyncLibraryTypeExtensions query for startup extension sync
- Update all media_items SELECT queries to include imported_at column
Podman rootless containers with overlay storage do not propagate inotify
events through bind mounts, making the fsnotify file watcher ineffective.
This caused new files added on the host to go undetected until the
5-minute full-filesystem-walk polling fallback caught them.
Add a lightweight directory mtime polling mechanism that runs every 10
seconds, checking stat() on all subdirectories under watched library
folders against a cached mtime value. When a directory's mtime changes
(indicating files were added/removed/renamed), it feeds into the existing
markDirectoryDirty() → processDirtyDirectories() → job queue pipeline.
Changes:
- Add dirMtimes cache + mutex to MediaScanner struct
- Add seedDirectoryMtimes() to populate cache on startup (prevents
false-positive flood on first poll)
- Add pollDirectoryChanges() goroutine (10s ticker) and
checkDirectoryMtimes() (walks directories, compares mtimes)
- Launch mtime poller from WatchChanges() alongside existing goroutines
- Rename StartPolling logs to [ORPHAN-CLEANUP] to clarify its role
- Change default poll interval from 60s → 30m (new file detection now
handled by the fast mtime poll; full sync focuses on orphan cleanup)
- Update GetScanSettings default from 60 → 1800 seconds
- Add 5 tests: seed cache, skip nonexistent, detect new dir, skip
unchanged, detect modified dir
Expected result: new files detected in ~20 seconds (10s poll + 10s
debounce) regardless of inotify/container support.
FieldValue struct had no json tags, so Go marshaled fields as uppercase
(Value, Count, Score) but frontend expected lowercase (value, count).
This caused all autocomplete dropdowns (tags, author, series, language)
to silently fail — tagSuggestions[].value was undefined, crashing
toLowerCase() calls and producing empty dropdowns.
Replace the single-purpose SeriesDetail template with a parameterized
BrowseDetail component that accepts badge icon/label, title, page title,
back URL/label, empty state icon/message, and book list. Both series
detail and new tag detail pages use the same template with different
params, eliminating duplication.
Series detail: 📚 Series, back to /series, "All Series"
Tag detail: 🏷️ Tag, back to /bookshelf, "Bookshelf"
Deleted series_detail.templ and series_detail_templ.go.
Updated frontend.go series route to call BrowseDetail with series params.
Added /tags/detail route calling BrowseDetail with tag params.
updateMediaItem (used by force rescan) was missing 22 fields including
Language, Genre, PageCount, CopyrightYear, GoodreadsID, and all 14 new
columns from the SQL query fix. Now wires all 37 UpdateMediaItemParams.
Also adds hasSiblingBookFile() early exit in processMediaFile: if a file
is an image (jpg/png/webp/etc) and its directory contains an actual book
file (epub/pdf/cbz/etc), skip importing the image as a standalone media
item. This prevents cover images and interior art from appearing as
duplicate library entries.
The UpdateMediaItem SQL query only SET 23 of 37 media_items columns,
causing all 3 call sites (admin PUT, bulk update, force rescan) to
silently NULL out the 14 unwired fields on every update.
Added: manga_type, reading_direction, series_count, volume, imprint,
age_rating, web_url, metadata_notes, community_rating, story_arc,
is_black_and_white, alternate_info, scan_information, summary.
Regenerated sqlc Go code (queries.sql.go) with 37-param
UpdateMediaItemParams struct.
Remove the library selector dropdown from the series detail page
since the page is scoped to the library from the browse page.
Replace it with a simple '← All Series' back link in the sticky bar.
Add title attributes to the shared BookCard template so the full
book title and author are visible on hover (useful for truncated
text with line-clamp).
Create a new /series/detail?name=X&library_id=Y SSR page that shows
all books in a specific series, replacing the broken approach of
linking to /bookshelf?series_filter=X (the bookshelf SSR handler
ignores all filter query params).
The series detail page features:
- Back link to /series browse page
- Library selector dropdown (full page navigation on change)
- Series name header with book count badge
- Book grid using the shared BookCard template
- Empty state for series with no books
Update all links to point to the new page:
- Series cards on /series browse page
- Series badge on book detail page
- JS-rendered cards in series.ts switchLibrary
Add seriesDetailPage Alpine component for the detail page's
library switcher (simple navigation, no AJAX needed).
Unit tests:
- series_service_test.go: test continueSeriesRowToMediaItems conversion
with valid fields, null fields, and comprehensive field mapping
- series_test.go: test handler initialization and textToString helper
Integration tests (series_integration_test.go):
- GET /api/series: requires library_id, rejects invalid UUID, returns
empty array for empty library, pagination params, limit clamped to
100, response structure validation, special characters in names
- GET /api/series/books: requires library_id and name, handles
nonexistent series, unauthorized access
- Restore Continue Series system collection
- Dashboard sections include all 5 collections (including continue-series)
Update test helpers:
- Add SeriesHandler to setupTestServer router config
- Add 5th Continue Series collection to createDefaultCollectionsForUser
- Update dashboard integration test for 5 collections
Create SeriesHandler with two API endpoints:
- GET /api/series (paginated series list with covers)
- GET /api/series/books (books in a specific series)
Uses query param ?name=X instead of path param to avoid URL encoding
issues with special characters in series names.
Add GetSeriesCardsData helper returning services.SeriesInfo for use
by the SSR route (avoids handlers→templates import cycle).
Register /api/series routes via registerSeriesRoutes in router.
Add /series SSR route in frontend.go with library-scoped pagination
and error handling, matching the dashboard/bookshelf patterns.
Add SeriesHandler to router Config and instantiate in main.go.
Add SeriesCardData type to templates/types.go.
Add Continue Series as the 5th valid system collection in
dashboard handler and auth handler's CreateDefaultCollectionsForUser.
Create SeriesService with methods for paginated series listing, cover
path resolution, series book listing, and a conversion helper for
GetContinueSeriesItemsRow to MediaItems.
Wire the continue-series query type into DashboardService's
getCollectionItemsByQueryType switch and add its metadata to the
RestoreSystemCollection default collection map.
Add five new sqlc queries to support the series browse page and
continue-series dashboard collection:
- GetDistinctSeries: list unique series with book counts, sorted by
most recent entry, with pagination
- GetDistinctSeriesCount: total distinct series count for pagination
- GetSeriesCovers: fetch up to N cover image paths for a series,
ordered by series_number
- GetSeriesBooks: fetch all books in a series ordered by series_number
- GetContinueSeriesItems: CTE-based query using DISTINCT ON to find
the next unread book per series for a given user/library, sorted
by most recent last_read_at
Add .epub and .pdf to comics type, add .pdf to manga type, and ensure
avif/tiff/tif extensions are consistently included in manga across all
layers. Update test fixtures to match the canonical extension lists.
Replaced the 8 US-centric timezone options with 24 entries covering
every populated UTC offset worldwide (UTC-10 through UTC+12). Each
option is labeled by regional name with UTC offset in parentheses,
e.g. 'Central European (UTC+1/+2)'. DST-shifting zones show both
standard and daylight offsets.
Covers: Hawaii, Alaska, Pacific, Mountain, Mountain-no DST, Central,
Eastern, Brasilia, British, Central European, Eastern European,
Moscow, Iran, Gulf, Pakistan, India, Bangladesh, Indochina, China,
Japan/Korea, Australian Central, Australian Eastern, New Zealand.
Backend already validates all IANA zones via time.LoadLocation(), so
users with uncommon zones can still set them via the API.
Updated in three locations:
- templates/profile_form.templ (user profile dropdown)
- templates/admin_settings.templ (admin settings dropdown)
- internal/handlers/sidecar.go (HTMX save response HTML)
The admin settings timezone dropdown was incomplete: it had no
pre-selection of the current value, was missing consistent styling,
and the form submission did not persist timezone changes.
Changes:
- frontend.go: load default_timezone from system_settings into the
systemConfig map passed to the template
- admin_settings.templ: match card styling used by the Base URL
section; pre-select current timezone with selected?= attribute
- sidecar.go: handle default_timezone in UpdateSystemConfiguration
by writing to system_settings table instead of system_config;
update HTMX response to include timezone section with current value
- Add selectedAttr() helper for HTMX HTML string response
The GetUser query did not select the timezone column, so the router
helper could not access userDB.Timezone. Added u.timezone to the
SELECT list so the per-user timezone is available in the template
user context.
The timezone update block in UpdateProfile() referenced undefined
variables ctx and userUUID, causing a compile error. Fixed to use
c.Request().Context() and targetUserUUID which are the correct
variables in that handler scope.
Also added Timezone field to AdminUpdateUserRequest struct so the
timezone value is properly bound from JSON requests, since
UpdateProfile() binds to AdminUpdateUserRequest rather than
UpdateProfileRequest.
Consistently format dates and times across all templates and API
handlers using MM-DD-YYYY with 12-hour clock (03:04 PM):
- analytics.go: date keys, lastSync, lastRead timestamps
- progress.go: lastUpdated timestamp in GetAllProgress
- book_detail.templ: LastReadAt, DatePublished
- book_detail_modals.templ: progress sync timestamps, LastReadAt
- devices.templ: LastSync, LastSeen
- conflicts.templ: CreatedAt
- admin_users.templ: user CreatedAt date
- Add FormatInTimezone and FormatTimestamptzInTimezone helpers
in templates/utils.go for timezone-aware time display
- Add Timezone field to templates.User struct
- Pass user timezone from DB to template context in helpers.go
- Add timezone update handling in auth.go UpdateProfile with
validation via time.LoadLocation
- Add UpdateTimezoneSettings handler in system_settings.go for
admin system-wide default timezone using UpdateSystemSetting
- Add timezone column (VARCHAR(50) DEFAULT 'UTC') to users table
- Add default_timezone row to system_settings seed data
- Add idx_users_timezone index for user timezone lookups
- Add UpdateUserTimezone and GetSystemTimezone queries
- Regenerate sqlc code (models, querier, queries.sql.go)
- Reuse existing UpdateSystemSetting for system timezone updates
instead of creating a redundant UpdateSystemTimezone query
- Remove GET /progress/:id and POST /progress/:id from progress routes.
These were superseded by the media-item progress routes. Only
GET /progress/:id/history remains.
- Add ProgressService to router.Config so sync.go can inject it into
KoboHandler via SetProgressService().
- Inject ProgressService into KoboHandler at route registration time
rather than requiring a separate setup step.
- Update comment from 'Legacy progress routes' to 'Progress routes'.
All four progress write paths now delegate to ProgressService.SaveProgress:
- MediaHandler: UpdateMediaReadingProgress uses ProgressService for web
saves with richer request body (reading_mode, zoom_level, scroll). GET
now uses GetUniversalProgress query that JOINs media_items for
format_group, total_characters, chapter_count.
- KOReaderHandler: updateProgressForBook delegates to ProgressService.
Fixed device ID bug (was using userID, now uses deviceID). Removed
duplicate UpdateDeviceLastSync with zero UUID. Added pgtype helper
functions (textPtrToPgText, intPtrToPgInt4, int64PtrToPgInt8).
- KoboHandler: all four progress write points (Markup ReadingSync, Markup
last-read-place, AnalyticsGettests, SyncFromServer) delegate to
ProgressService. Fixed empty epubcfi string now correctly set to
Valid: false. SyncFromServer preserves last_sync_source=bookhoard
and Broadcast: false.
- QueueProcessor: syncProgress delegates to ProgressService.
- main.go: creates ProgressService after ConnectionManager, injects via
SetProgressService() on all handlers and queue processor.
Handler tests cover pgtype conversion helpers (textPtrToPgText, etc.)
and device icon mapping.
Introduces a centralized ProgressService that handles all reading progress
writes across web, KOReader, and Kobo clients. The service implements:
- Merge strategy: reads existing progress first, then only overwrites
non-nil fields from the incoming request. This fixes the data loss bug
where partial updates (e.g., Kobo last-read-place sending only epubcfi
and chapter) would NULL out percentage, character_offset, etc.
- Enrichment: computes missing fields from available data:
- character_offset from percentage + total_characters
- current_page from percentage + total_pages
- percentage from current_page + total_pages (reverse)
- percentage from character_offset + total_characters (reverse)
- Conflict detection: when a different source writes progress within 5
minutes with >1% difference, records a sync_conflicts row and broadcasts
a WebSocket notification for real-time UI alerts.
- Broadcast control: SaveProgressRequest.Broadcast flag lets Kobo
last-read-place and SyncFromServer skip WebSocket broadcasts.
- Pointer fields on SaveProgressRequest: nil means preserve existing,
non-nil means overwrite. Eliminates ambiguity between zero values
and not-provided fields.
Also adds unit tests for buildProgressSnapshot helper function.
john-okeefe