[eszter007]

Genres only come from Hardcover today, so books Hardcover doesn't know (many German and Japanese titles, in my library) never get any, and a client can't fill them in.

This lets PUT /api/v1/documents/{document}/info take genres as well:

• {"genres": ["Fantasy", "Heist"]} stores them. Names are trimmed and de-duplicated; up to 10 names of at most 64 characters each.
• Genres set this way stick: when the background enricher looks the book up on Hardcover, it still fills moods, series and the rest, but leaves the genres alone. This follows how manual covers and page counts already work.
• {"genres": null} hands them back to Hardcover: the book is looked up again on the next enrichment pass.
• Merging two documents carries the genres over. Genres set by hand win over Hardcover's; otherwise the kept document's stay.

A new column, documents.genres_manual (migration 0033), marks genres set by hand. The response now also returns title, author and genres. The API docs are updated.

My use case: importing reading history from Goodreads and filling in genres from Goodreads shelves for books Hardcover misses.

Testing: test/manual-genres.test.ts fakes Hardcover's search and covers validation, the book list, a Hardcover lookup leaving manual genres alone, and clearing back to Hardcover's. Without the change in cover.ts, the lookup step fails the test. The full suite passes (676 tests) and so does tsc --noEmit.

Example:

This is a nature documentary book and it is classified as young adult, adventure and classics. This is obviously wrong.
A manual update would also later make manual overrides possible in client apps, not only for scripts like mine.

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Caution

Review failed

The pull request is closed.

Walkthrough

The document-info endpoint now accepts and returns genre lists. It stores whether genres were set manually. Hardcover enrichment preserves manual genres until they are cleared.

Changes: Manual Genre Editing

Layer / File(s)	Summary
Genre API and stored state migrations/0033_manual_genres.sql, src/routes/v1/documents.ts, docs/API.md	The endpoint validates, trims, deduplicates, stores, and returns genres. Setting genres marks them manual. Clearing them resets the manual flag and Hardcover check timestamp. The migration adds the flag, and the API docs describe the request and response.
Hardcover preservation and validation src/models/cover.ts, test/manual-genres.test.ts	Hardcover enrichment retains genres marked manual. Tests cover invalid input, normalization, preservation through enrichment and a page-count edit, and clearing genres to allow lookup results again.

Priority: Normal

Estimated code review effort: 2 (Simple) | ~15 minutes

Change: Feature

Sequence Diagram(s)

sequenceDiagram
  participant Client
  participant DocumentsRoute
  participant DocumentsTable
  participant HardcoverEnrichment
  participant saveHardcover
  Client->>DocumentsRoute: Submit genres
  DocumentsRoute->>DocumentsTable: Store genres and manual flag
  HardcoverEnrichment->>saveHardcover: Provide Hardcover genres
  saveHardcover->>DocumentsTable: Preserve manual genres or store Hardcover genres

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Possibly related issues

• Issue 32: The endpoint provides backend genre editing requested for genre tags. This change does not add a web UI or support the issue’s other metadata fields.

Suggested reviewers: itsthisjustin

Merge Risk: Low · up to b0909

Manual genres can be lost when documents are merged. This is a localized risk that should be fixed or explicitly accepted before merging.

Pre-merge checks: 4

Check name	Status	Explanation
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.
Description check		The pull request description directly explains the added genres API support, validation, manual genre persistence, migration, tests, and documentation updates.
Title check		The title clearly and concisely describes the main change: allowing clients to set a book's genres.

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Actionable comments posted: 1

---

• 🪄 Fix comments: Fix CodeRabbit comments on this PR

Prompt to fix review comments

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Inline comments:
Review comments at @src/routes/v1/documents.ts:
- Around line 318-320: Update mergeDocuments so its INSERT ... SELECT copies
genres and genres_manual from the alias, and its ON CONFLICT update fills those
fields only when the canonical document has no genres, preserving existing
canonical genres and their manual flag.

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Commits

Reviewing files that changed from the base of the PR and between a1447e4 and b090906.

Files selected for processing: 5

• docs/API.md
• migrations/0033_manual_genres.sql
• src/models/cover.ts
• src/routes/v1/documents.ts
• test/manual-genres.test.ts

Included review availability: This review used your included allowance. Your plan provides up to 1 included review per hour; 0 remain after this review.

Review details

Additional comments: 5

migrations/0033_manual_genres.sql: 1

1-2: LGTM!

src/routes/v1/documents.ts: 1

274-274: LGTM!

Also applies to: 276-276, 291-295, 301-301, 314-317, 319-319, 321-321, 333-334, 336-337

docs/API.md: 1

626-630: LGTM!

src/models/cover.ts: 1

218-218: LGTM!

Also applies to: 222-222

test/manual-genres.test.ts: 1

1-55: LGTM!