# CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

## Commands

This project uses **pnpm 11** (see `packageManager` in `package.json`). Use `pnpm install` to set up; `npm`/`yarn` will produce a divergent tree from `pnpm-lock.yaml`.

- `pnpm test` — run vitest once
- `pnpm test:watch` — vitest in watch mode
- `pnpm coverage` — vitest with coverage
- `pnpm lint` / `pnpm lint:fix` — oxlint (config in `.oxlintrc.json`)
- `pnpm format` / `pnpm format:check` — oxfmt (config in `.oxfmtrc.json`)
- `pnpm run build` — clean `dist/`, run `tsc`, then `vite build` (produces ES + CJS bundles plus `.d.ts` declarations)

Run a single test by name: `pnpm exec vitest run -t "page title should be 'Page Title'"`.

Approved postinstall scripts live in `pnpm-workspace.yaml` under `allowBuilds` (currently just `esbuild`, needed by vitest). pnpm 11 blocks postinstalls by default; if a new dep needs one, run `pnpm approve-builds <pkg>` and commit the resulting `pnpm-workspace.yaml` change.

## Architecture

This is a tiny single-purpose npm package: given a Notion API object, return a human-readable title string. The full public surface is `getNotionObjectTitle(notionObject, { emoji?: boolean })` exported from `src/get-notion-object-title.ts`.

Dispatch in `getNotionObjectTitle` is by object kind, in this order:

1. **Page** (`isFullPage`): scans `page.properties` for the first key in `['title', 'Page', 'Name', 'Topic']` whose value yields text via `getTitleFromProperty` (which handles both `title` and `rich_text` shaped properties). If none of those keys match, it falls back to concatenating the text of _all_ properties in reverse key order — this is what lets `unknown-prop-key.json` resolve. Page icon emoji is prepended unless `emoji: false`.
2. **Database** (`isFullDatabase`): uses the top-level `title` rich-text array. Same icon rule.
3. **Block-like** (anything with a `.type`): delegated to `getTextFromBlock` in `src/getTextFromBlock.js` — this file is vendored from `makenotion/notion-sdk-js`'s `parse-text-from-any-block-type` example and intentionally kept as JS. Touch it sparingly; updates should track upstream.
4. Otherwise returns `'Untitled'`.

`Icon` is re-exported as an alias for `PageIconResponse | null` from `@notionhq/client`. For non-renderable variants (`custom_emoji`, Noticon `icon`), the SDK's `name` field is returned as a fallback.

## Tests

Vitest lives alongside the source. Fixtures in `src/__mocks/*.json` are real-shape Notion API responses — when adding behavior, add a fixture rather than hand-constructing objects in the test.

## Release

Publishing is automated via `semantic-release` from `main` (see `.releaserc.json` and `.github/`). Commit messages drive the version bump, so use Conventional Commits (`fix:`, `feat:`, `build(deps):`, etc. — see recent `git log`).