ehoandClaude Opus 4.8
19f2e9b734
Anti-drift snippets: `?raw` isn't supported by Angular's esbuild build, so real code is exposed via // #region showcase:<name> markers in source (registration/remote-data/ postcode/change-request.machine/intake.machine) → scripts/gen-snippets.mjs → committed snippets.generated.ts, with a CI drift gate so the shown code is the shipped code. The /concepts page renders the 5 real snippets (union/fold/parse/machine/steps) with a source caption + a tiny dependency-free highlightTs (+spec); deliberately-wrong illustrations stay authored. Teaching motion: active state node pops on transition + parse result animates in (existing reduced-motion-safe toolkit). Generated file prettier-ignored (like api-client). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
50 lines
2.7 KiB
Markdown
50 lines
2.7 KiB
Markdown
# WP-39 — Showcase: linked code snippets + teaching animations
|
|
|
|
Status: done
|
|
Phase: 8 — platform/DX/showcase
|
|
Priority: P1
|
|
|
|
## Outcome
|
|
|
|
`?raw` imports are NOT supported by Angular's esbuild build (verified), so anti-drift is done via
|
|
a generator (mirrors `gen:api`): `// #region showcase:<name>` markers in real source
|
|
(registration.ts, remote-data.ts, postcode.ts, change-request.machine.ts, intake.machine.ts) →
|
|
`scripts/gen-snippets.mjs` (`npm run gen:snippets`) → committed `src/app/showcase/snippets.generated.ts`.
|
|
A CI drift gate (`gen:snippets && git diff --exit-code`) forces a regen after any edit, so the shown
|
|
code IS the shipped code. The showcase renders the 5 real snippets (union/fold/parse/machine/steps)
|
|
each with a `↳ <source file>` caption, highlighted by a tiny dependency-free `highlightTs` (+spec);
|
|
the deliberately-wrong illustrations stay authored (no real source to link). Teaching animation: the
|
|
active state node pops (scale) as the wizard transitions, and the parse result animates in
|
|
(`animate.enter`), reusing the existing reduced-motion-safe toolkit. Generated file is
|
|
prettier-ignored (like api-client.ts) so the drift gate and format:check don't conflict.
|
|
|
|
## Why
|
|
|
|
The `/concepts` showcase shows live components, but its code snippets are hand-authored
|
|
`innerHTML` strings with manual highlighting — they drift from the real code. And the animation
|
|
toolkit (`withViewTransitions`, native `animate.enter/leave`, reduced-motion-safe keyframes in
|
|
`styles.scss`) is proven in dashboard/upload but unused for teaching motion.
|
|
|
|
## Decisions
|
|
|
|
- **Anti-drift snippets:** load _real_ source excerpts via Vite `?raw` imports with `// #region name`
|
|
markers + a tiny pure extractor; render with lightweight highlighting. No more `innerHTML` literals.
|
|
- On the Storybook/MDX side, use `<Source>`/Canvas "show code" consistently (extend beyond the
|
|
current 4 of 14 pages).
|
|
- **Reuse** the existing motion toolkit (no new animation lib): `animate.enter/leave` on the
|
|
fold/union demos + a "step through `reduce`" animation for the TEA loop; keep reduced-motion-safe.
|
|
|
|
## Files
|
|
|
|
- `src/app/showcase/concepts.page.ts` — replace `innerHTML` snippets with `?raw`+region excerpts;
|
|
apply animations.
|
|
- New tiny extractor util (pure) + spec (region slicing).
|
|
- `src/docs/machines.mdx`, `fp-in-ui.mdx`, `remote-data.mdx` — reference the live linked snippets.
|
|
|
|
## Acceptance criteria
|
|
|
|
- [x] The good-side snippets are sourced from real files via region markers (edit source → regen →
|
|
snippet updates); a CI drift gate enforces it. Bad-pattern illustrations stay authored.
|
|
- [x] The state machine + parse demos animate (reduced-motion respected globally); no new dependency.
|
|
- [x] `npm run ci` green.
|