Introduce automatic healing for stale PDF parse states in API routes. Add
`isDocumentParseStateStale` utility and use a shared `COMPUTE_OP_STALE_MS`
environment variable (with config getter) to control the stale window for both
worker op replacement and app-side parse-state healing. Update documentation and
environment variable references to reflect new config.
Enables automatic marking of stuck parses as failed, improving reliability and
retry behavior in distributed compute environments.
- Deleted mergeTextWithRegions.ts, LICENSE.txt, manifest.json, parsePdf.ts, renderPage.ts, runLayoutModel.ts, stitchCrossPageBlocks.ts, and types.ts as they are no longer needed.
- Updated unit tests to reflect new import paths from @openreader/compute-core.
- Adjusted tsconfig.json to include new paths for pdf-layout module.
Standardize compute job concurrency configuration by introducing a shared
COMPUTE_JOB_CONCURRENCY setting, replacing separate PDF and Whisper concurrency
controls. Add cross-platform CPU core detection and thread budgeting utilities,
and update both ONNX model execution and concurrency limiters to use dynamic
thread allocation per job. Refactor environment variable docs and examples to
reflect unified concurrency management. Streamline PDF.js font path resolution
for improved reliability across environments.
Introduce detailed progress reporting for PDF layout parsing, exposing phase and page-level updates to clients. Replace legacy parseStatus with a structured parseState field in the database schema, updating all relevant backend and API logic. Add SSE endpoint for real-time parse progress updates. Update client hooks and UI to reflect granular progress and improve user feedback during document parsing. Includes migration scripts and new parse-state utility module.
Migrate worker and backend contract to an operation-centric model, introducing opKey-based deduplication for Whisper alignment and PDF layout parsing. Add new operation request/state types and update worker endpoints to accept generic operation requests and expose operation status via SSE. Refactor client and server logic to support operation flows. Update deployment docs, environment examples, and Dockerfile to reflect new architecture and dependency management.
Add ability to fetch parsed documents using a stored S3 key, enabling more flexible blob access patterns. Update API route to prefer `parsedJsonKey` if present, falling back to legacy lookup. Introduce `COMPUTE_WORKER_WAIT_TIMEOUT_MS` environment variable for customizing worker job wait time, with a new default of 120 seconds. Update documentation and examples to reflect these changes.
Update worker server to prioritize platform-specific PORT environment variable
when setting the compute worker port. Add robust normalization for
COMPUTE_WORKER_URL, ensuring proper scheme and validation, and trim trailing
slashes for consistency. This enhances reliability in diverse deployment
environments.
Update backend creation logic to consistently determine compute mode using
a local variable, ensuring correct handling when the mode is undefined. This
improves clarity and robustness in backend selection.
Update compute backend interfaces and job logic to consistently handle parsed
PDF layout results as either direct data or S3 object key references. Refactor
result types, local and worker backends, and job processing to support this
pattern. Improves flexibility for large document parsing and object storage
integration.
Restructure compute core by extracting job contracts and runtime logic into separate
modules (`contracts.ts`, `local-runtime.ts`) for improved modularity and clearer
API boundaries. Update exports and imports across worker, server, and local
compute backends to use the new modules. Enhance Next.js config to support
dynamic backend selection via build-time constants and aliasing, enabling
seamless switching between local and worker compute modes. Adjust TypeScript
paths and Dockerfile entrypoint to align with the new structure.
Refactor compute backend initialization to use asynchronous loading and promise caching, replacing previous synchronous singleton pattern. Update all consumers—including TTS segment alignment and PDF layout parsing jobs—to await compute backend resolution before invoking methods. This change improves compatibility with dynamic imports and future-proofs backend selection logic.
Eliminate the "none" compute mode and all related code paths, including the NoneComputeBackend, "unsupported" parse status, and PDF margin settings. Parsing is now always available if the app starts successfully, and configuration is limited to "local" or "worker" compute modes. Update types, API routes, client adapters, and documentation to reflect this simplification.
BREAKING CHANGE: "none" is no longer a valid COMPUTE_MODE; only "local" and "worker" are supported. "unsupported" parse status and PDF margin settings are removed.
Introduce WorkerJobTiming interface to capture queue wait, S3 fetch, and compute
durations for compute worker jobs. Update job result and status response types
to include timing data. Enhance worker implementation to record and attach
timing metrics for alignment jobs, improving observability of job processing
latency. Update exports and type usage to support new timing fields.
Introduce support for external compute worker mode (`COMPUTE_MODE=worker`) using a new `WorkerComputeBackend`. This enables offloading heavy ONNX Whisper alignment and PDF layout parsing to a standalone worker service (Redis + BullMQ), improving scalability and compatibility with serverless/limited environments.
- Add `@openreader/compute-core` as a shared package for ONNX inference and PDF parsing logic.
- Implement `WorkerComputeBackend` and worker contract/types for remote job execution.
- Update compute backend selection logic and remove previous worker mode guards.
- Extend `WhisperAlignInput` and `PdfLayoutInput` types to support object keys for remote data access.
- Refactor local compute backend to use `@openreader/compute-core` and support both buffer and object key inputs.
- Update job runner, TTS segment alignment, and PDF layout parsing flows to use new compute backend APIs.
- Add scripts, Docker workflow, and documentation for deploying and running the compute worker.
- Update environment variable docs and examples for worker mode, including storage requirements and configuration.
- Document published images and stack changes to reflect the new compute worker architecture.
BREAKING CHANGE: `COMPUTE_MODE=worker` now requires an external compute worker service and S3-compatible object storage. Embedded SeaweedFS (`weed mini`) is not supported in worker mode. See the new documentation for deployment and configuration details.
- Replace `OPENREADER_COMPUTE_MODE` and related variables with `COMPUTE_MODE`
- Replace `OPENREADER_*` PDF/Whisper model URLs with `PDF_LAYOUT_MODEL_BASE_URL` and `WHISPER_MODEL_BASE_URL`
- Remove legacy `NEXT_PUBLIC_*` runtime config seeds in favor of `RUNTIME_SEED_*`
- Update documentation, code, and environment references to match new variable names
- Remove deprecated `scripts/fetch-models.mjs` and related npm script
- Update runtime config SSR injection from `window.__OPENREADER_RUNTIME_CONFIG__` to `window.__RUNTIME_CONFIG__`
- Adjust Next.js config to use new compute mode env var and optimize output file tracing for ONNX dependencies
BREAKING CHANGE: Environment variable names for compute mode, model URLs, and runtime config seeding have changed. Update `.env` files and deployment configs to use `COMPUTE_MODE`, `PDF_LAYOUT_MODEL_BASE_URL`, `WHISPER_MODEL_BASE_URL`, and `RUNTIME_SEED_*` as appropriate. Legacy `OPENREADER_*` and `NEXT_PUBLIC_*` variables are no longer supported.
Replace the previous whisper.cpp-based word alignment with a fully ONNX-based
implementation using onnxruntime-node and @huggingface/tokenizers. Add new
Whisper ONNX model management, alignment mapping, and spectral analysis modules.
Remove all code and documentation referencing whisper.cpp, update environment
variables, Dockerfile, and docs to reflect ONNX-only alignment. Add unit tests
for alignment and ONNX model logic.
Enhance PDF cross-page block stitching to move only sentence continuations and
preserve remaining text on the following page. Update TTS segment planning to
support strict source boundary enforcement, ensuring segments do not cross
block or paragraph-title boundaries. Add new tests for both features and
refactor PDF text item normalization to filter out skewed or rotated runs.
Remove temporary working directory usage and in-place file writes from preview
generation, simplifying logic for both PDF and EPUB previews. Change default
preview image variant from 480px to 400px width, updating related constants and
cache schema version to maintain consistency across client and server code.
Remove hardcoded defaults for preview variant and width in database schemas to allow more flexible preview generation. Bump preview cache schema version and add versioning to cache rows for consistency. Switch preview image generation to 480px JPEGs with updated file naming and content type. Refactor PDF preview rendering to support configurable output format and quality, and update all preview consumers to use unified "image" buffer property instead of "png". Add migration scripts and update metadata for both Postgres and SQLite.
BREAKING CHANGE: Preview variant and width defaults removed from database; preview cache and image handling updated across system.
Switch PDF layout parsing to use the PP-DocLayoutV3 ONNX model, replacing the previous Docling-based approach. Update all environment variables, model fetching, and manifest handling for the new model and its artifacts. Refactor block kind taxonomy throughout the codebase, tests, and UI to align with PP-DocLayoutV3 labels, including expanded and renamed block types. Revise document settings, block filtering, and stitching logic to support the new set of block kinds. Update documentation and environment variable references to reflect the model transition.
BREAKING CHANGE: PDF parsing now requires PP-DocLayoutV3 ONNX model and updated environment variables; block kind names and settings have changed throughout the system.
Migrate PDF parsing to use ONNX Docling layout model for structured block extraction, enabling improved TTS segmentation and chaptering. Add compute backend abstraction for heavy tasks (alignment, layout parsing) with configuration via `OPENREADER_COMPUTE_MODE`. Integrate block-level locators and document settings for per-document PDF parsing options. Update S3 storage for parsed PDF JSON, add migration and schema changes, and extend client and server APIs for parsed data and settings. Remove legacy word highlight flag in favor of compute capability detection.
- Add ONNX model download, local/none compute modes, and `onnxruntime-node` dependency
- Update PDF viewer and TTS pipeline to use parsed blocks and block-level locators
- Add document settings storage and APIs for per-document PDF options
- Update S3 storage layout for parsed PDF JSON
- Add admin/config/docs updates for new compute and parsing features
- Remove obsolete word highlight runtime flag and UI
BREAKING CHANGE: PDF parsing and word highlighting now require `OPENREADER_COMPUTE_MODE=local` and ONNX model; document settings and S3 layout updated; legacy word highlight flag removed.
Update GitHub Actions workflows to latest action versions and improve pnpm usage by introducing per-package workspace configs. Add docs-site/pnpm-workspace.yaml and update Dockerfile/package.json for better monorepo support. Upgrade dependencies across main and docs-site packages for compatibility and security. Refine TypeScript types and hooks for improved type safety and maintainability.
Add explicit runtime checks to prevent runtime config functions from being called on the client. This guards against accidental client-side invocation by throwing errors if executed outside the server environment.
Move runtime config resolution logic to a new `runtime-config-rsc.ts` module for use in React Server Components. Update public layout and landing page to consume the RSC-specific resolver, improving compatibility and separation of concerns.
Introduce `enableUserSignups` runtime setting to allow administrators to control
whether new accounts can be created. Update environment variable and documentation
references to support this feature. UI elements for account creation are now
conditionally rendered based on this flag. Signup attempts are blocked server-side
when disabled, including email, OAuth, and anonymous upgrades.
Add `assertUserSignupAllowed` utility for consistent enforcement and corresponding
unit tests to verify policy behavior.
Refactor chapter API to use new coerceAudiobookGenerationSettings utility for
validating and migrating audiobook metadata. Add src/lib/server/audiobooks/settings.ts
with shared logic and introduce corresponding unit tests to ensure correct
settings migration and validation.
Integrate changelog version check on settings open, triggering the changelog
panel when a new app version is detected. Refactor user preferences storage to
support metadata via payload utilities, enabling version tracking and future
extensibility. Add API endpoint for changelog version check and related tests
for changelog and preferences payload logic.
Introduce changelog feed manifest support, including client and shared
utilities for fetching and parsing changelog data. Add a new
Settings modal panel for viewing changelog entries, with version
detection based on the current app version. Expose a configurable
changelog feed URL in both environment variables and admin panel
runtime settings. Update documentation and deployment workflow to
support changelog feed generation and consumption. Include unit tests
for changelog utilities.
Eliminate the showAllDeepInfraModels runtime/admin config and all code paths
that allowed restricting Deepinfra's model catalog. Deepinfra now always
shows the full model list regardless of API key or environment variable.
Update documentation, environment examples, admin panels, runtime config,
provider catalog logic, and tests to reflect this change.
Remove fallbackProviderRef usage from settings and config context to streamline
provider resolution. Adjust normalizeLegacyProviderRef to retain 'default-openai'
unless a non-default fallback is explicitly provided. Update provider listing to
enforce deterministic ordering by updatedAt, createdAt, and slug. Expand unit tests
to verify provider ordering, legacy ref normalization, and selection logic.
Transition all TTS-related logic, types, and UI to use the new providerRef/providerType model in place of legacy ttsProvider fields. Introduce a centralized tts-provider-policy module to encapsulate provider/model capability checks, default value resolution, and compatibility logic. Update all API routes, contexts, hooks, components, and tests to use providerRef and providerType, ensuring consistent handling of built-in and shared TTS providers. Remove legacy defaultTtsModel config in favor of per-provider defaults and shared provider admin control. Add the showAllProviderModels runtime flag to restrict users to provider default models when desired.
BREAKING CHANGE: ttsProvider fields are replaced by providerRef/providerType throughout the codebase; defaultTtsModel config is removed in favor of per-provider defaults.
Add database-backed runtime configuration for feature flags and TTS provider credentials, editable via a new admin UI panel. Replace static NEXT_PUBLIC_* and TTS provider env vars with admin-managed settings stored in the database and injected at SSR for client access. Implement admin-only panels for managing shared TTS provider credentials (with encrypted API keys) and live site feature flags. Add schema migrations, API routes, React contexts, and hooks for SSR-injected runtime config and live updates. Update client and server logic to resolve configuration from the database at runtime, enforcing admin restrictions and supporting migration from legacy env-based config.
BREAKING CHANGE: Feature flags and TTS provider credentials are now managed at runtime via the admin UI. Environment variables are only used for initial seeding and are ignored after first boot. Existing deployments must migrate configuration to the admin panel.
Move daily quota exceeded problem response logic to a dedicated utility in `lib/server/rate-limit/problem-response`. Refactor API routes to use the new builder and remove duplicated formatting code. Update all relevant imports for consistency. This improves maintainability and ensures uniform error responses across TTS endpoints.
Redesign TTS segment storage by decomposing the `tts_segments` table into two normalized tables: `tts_segment_entries` for unique segment identity and locator projection, and `tts_segment_variants` for per-settings audio variants. Update schema, queries, and API routes to use the new structure, including manifest pagination and segment resolution logic. Refactor segment locator handling to use stable projections and manifest cursors. Migrate tests and data cleanup utilities to support the new model.
BREAKING CHANGE: Database schema for TTS segments is now split into entry and variant tables; all code and consumers must use the new structure. Persisted data and APIs relying on the old `tts_segments` table are incompatible.
Implement strict validation for EPUB TTS segment locators, requiring stable spine coordinates (`spineHref`, `spineIndex`, `charOffset`) and rejecting legacy CFI-only locators. Introduce `segmentKey` as a normalized identity derived from segment text, used for robust merging and deduplication of synthesized and persisted segments. Update database schemas, API routes, and manifest logic to support the new locator format and segmentKey. Add helpers for locator resolution and segmentKey construction, with comprehensive unit tests for identity, normalization, and manifest grouping.
BREAKING CHANGE: Persisted EPUB TTS segment locators must now include stable spine coordinates; legacy CFI-only locators are no longer accepted. Consumers must handle the new `segmentKey` field for segment identity and merging.
Refactor TTS segment identification to support canonical segment keys, decoupling segment IDs from locator and index for more robust deduplication and handoff. Add `segmentKey` to segment types, manifest, and ensure route. Implement natural sorting for EPUB CFI locations and segment locators using new comparison utilities. Update sidebar and manifest helpers to use locator-aware sorting. Add foundational modules for EPUB word highlighting, TTS segment planning, and EPUB handoff logic. Expand types and tests to cover new canonical segment and locator behaviors.
BREAKING CHANGE: TTS segment IDs now support canonical segment keys; APIs and manifest consumers must handle `segmentKey` and updated locator comparison logic.
Introduce configurable segment preloading depth, sentence lookahead, and TTS segment max block length for both PDF and EPUB readers. Add new settings to user preferences, config context, and document settings UI. Refactor TTS segment splitting logic to support per-user max block length and propagate these options through PDF/EPUB adapters and TTS segment generation. Update API, manifest pagination, and segment deduplication for improved performance and correctness. Add tests for new NLP options and manifest logic.
BREAKING CHANGE: TTS segment splitting and manifest APIs now require max block length and preloading parameters; user config schema updated.
Introduce SegmentsSidebar component and supporting reader UI for segment-level
navigation and inspection. Add TTS segments manifest and clear API endpoints to
enable efficient retrieval and management of segment variants. Update TTS
segment schema to include settings_hash for improved lookup and indexing,
and adjust indexes to use settings_hash instead of settings_json. Update
contexts and types to support segment variant display and interaction.
This enhances document navigation and TTS segment management for end users.
