# Tasks: enterprise-server-pdf

**Change ID**: enterprise-server-pdf
**Package**: `@suaveplan/pdf`
**Target path**: `server/services/pdf`
**Prerequisites on Verdaccio**: `@suaveplan/error`, `@suaveplan/types`, `@suaveplan/templates`, `@suaveplan/logger`

---

## 0. Pre-flight (non-negotiable)

- [ ] 0.1 Confirm clean working tree (`git status` reports nothing) and no in-flight worktrees with uncommitted work (`git worktree list` then `git status` in each)
- [ ] 0.2 If any worktrees exist under `.claude/worktrees/`, account for each one: still-active agent, work-pending-merge, or stale-and-prune. Stale worktrees MUST be removed (`git worktree remove`) before opening a new one — code that has been lost twice on main is the failure mode this guards against.
- [ ] 0.3 Confirm the package set in `MANIFEST.md` matches `find packages -maxdepth 3 -name package.json` count. Drift here means a prior change archived without regenerating the manifest.

## 1. Scaffold

- [ ] Create directory tree per `proposal.md`.
- [ ] `package.json` at `0.1.0`, `"sideEffects": false`, exports `"."` + `builder` + `renderers/puppeteer` + `renderers/pdfkit`.
- [ ] Deps: all workspace + catalog deps listed in proposal. Mark `puppeteer-core` and `pdfkit` as `optionalDependencies`.
- [ ] DevDeps: `vitest catalog:testing`, `@vitest/coverage-istanbul catalog:testing`, `@suaveplan/testing workspace:^`.
- [ ] `tsconfig.json` extending `library-node.json`; `vitest.config.ts` with `pool: 'forks'`.
- [ ] Scripts: `lint`, `typecheck`, `test`, `test:coverage`, `build`, `docs:check`.

## 2. Types and errors

- [ ] Define all interfaces and Zod schemas in `src/types/pdf.types.ts`.
- [ ] Write `pdf.types.md` (≥200 words, both examples, API reference).
- [ ] `src/error-codes.ts`: four codes; `registerPdfErrorCodes()`; eager call.

## 3. PDF builder

- [ ] Implement `PdfBuilder` in `src/builder/pdf-builder/pdf-builder.ts`:
  - Fluent API using internal `currentPage: PdfPage` accumulator.
  - `page(options?)`: push current page (if populated) and start a new one.
  - `text`, `heading`, `table`, `image`, `spacer`, `footer`, `header`: append elements to `currentPage.elements`.
  - `build()`: flush current page; return `PdfDocument`.
  - Validate non-empty content on `build()`; throw `PDF_INVALID_CONTENT` if no pages.
- [ ] Write `pdf-builder.types.ts` with `PdfPage`, `PdfElement` discriminated union.
- [ ] Write `pdf-builder.test.ts` (≤500 lines): multi-page build; all element types; empty build throws; metadata.
- [ ] Write `pdf-builder.md` (≥200 words, simple + advanced, API reference).

## 4. PdfKit renderer

- [ ] Implement `PdfKitRenderer` in `src/renderers/pdfkit-renderer/pdfkit-renderer.ts`:
  - Convert `PdfDocument` elements to PDFKit calls; collect output in `PassThrough` stream; return as `Uint8Array`.
  - Support: text, heading (larger font), table (basic grid), image (from URL or bytes), spacer, header, footer.
  - Guard import of `pdfkit` with a try/catch; throw `PDF_RENDERER_UNAVAILABLE` if not installed.
  - AbortSignal: check signal between pages.
  - OTel span `pdf.render` with `renderer: 'pdfkit'`; histogram `pdf.render_duration_ms`.
- [ ] Write `pdfkit-renderer.test.ts` (≤500 lines): all element types produce non-empty PDF bytes; abort signal; unavailable pdfkit error.
- [ ] Write `pdfkit-renderer.md` (≥200 words).

## 5. Puppeteer renderer

- [ ] Implement `PuppeteerRenderer` in `src/renderers/puppeteer-renderer/puppeteer-renderer.ts`:
  - Convert `PdfDocument` to an HTML string using `@suaveplan/templates`.
  - Launch headless Chrome via `puppeteer-core`; navigate to data URL; call `page.pdf()`.
  - `dispose()`: close browser.
  - Guard import of `puppeteer-core`; throw `PDF_RENDERER_UNAVAILABLE` if absent.
  - AbortSignal: abort browser navigation.
  - OTel span with `renderer: 'puppeteer'`.
- [ ] Write `puppeteer-renderer.test.ts` (≤500 lines): skip if `SKIP_PUPPETEER=1`; basic render produces valid PDF bytes; dispose closes browser; `{ timeout: 30000 }`.
- [ ] Write `puppeteer-renderer.md` (≥200 words).

## 6. Integration tests

- [ ] `tests/integration.test.ts`: build a multi-page invoice with table + text + image; render with PdfKit; verify output size > 1000 bytes; `{ timeout: 30000 }`.

## 7. Docs + verify + publish

- [ ] Root `README.md`: quick-start invoice example, renderer comparison table, template customisation, API table.
- [ ] `bunx turbo lint --filter=@suaveplan/pdf` — zero errors.
- [ ] `bunx turbo typecheck --filter=@suaveplan/pdf` — zero errors.
- [ ] `bunx turbo test --filter=@suaveplan/pdf` — all pass.
- [ ] `bunx turbo test:coverage --filter=@suaveplan/pdf` — 100%.
- [ ] `bun scripts/publish.ts --package @suaveplan/pdf`.
- [ ] Update `CLAUDE.md`; archive to `openspec/archive/2026-04-24-enterprise-server-pdf/`.