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julien eb8b65c7bc feat(shared-charts): foundations + bar / donut / stacked-bar components (#171)
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## Summary

Implementation of [ADR-0023](docs/decisions/0023-charts-d3-observable-plot.md) — the foundations of the workspace's chart library. PR 2 of the chantier:

| PR | Périmètre |
| --- | --- |
| PR 1  | ADR-0023 — decision + a11y contract + bundle plan. |
| **PR 2 (this one)** | `libs/shared/charts/` foundations + `<lib-bar-chart>`, `<lib-donut-chart>`, `<lib-stacked-bar-chart>`. |
| PR 3 | Integration on the `/audit` page — daily-volume bar + outcome-breakdown donut + event-type-over-time stacked bar. |

## What lands

### Workspace deps

```
d3                       — top-level toolkit, types via @types/d3
d3-shape                 — used directly by <lib-donut-chart>
d3-scale-chromatic       — colour-blind-safe palette source
@observablehq/plot       — declarative layer over D3, used by bar + stacked-bar
```

All four (+ matching `@types/*`) land in the workspace root `devDependencies`. Tree-shaken at build time per ADR-0023's bundle plan.

### New lib `libs/shared/charts/`

```
libs/shared/charts/src/lib/
├── _internal/                   ← single source of truth for the a11y contract
│   ├── a11y.ts                  ← chartId, findChartSvg, injectSvgTitleDesc, prefersReducedMotion, resolveTheme
│   ├── chart-envelope.scss      ← shared figure / caption / fallback / dark-mode rules
│   ├── chart-types.ts           ← `ChartBaseInputs<T>` extended by each component
│   └── palette.ts               ← Viridis / Cividis (sequential) + ColorBrewer Set2 (categorical)
├── bar-chart/                   ← Plot.barY
├── donut-chart/                 ← raw d3-shape (pie + arc); Plot has no donut mark
└── stacked-bar-chart/           ← Plot.barY with `fill: <seriesKey>` (auto-stacked, legend on)
```

### A11y contract baked in for v1

Per ADR-0023's six commitments, every chart component produces (and unit-tests for):

1. `<figure role="img" aria-labelledby aria-describedby>` wrapping the SVG.
2. SVG `<title>` + `<desc>` as the **first two children** — injected post-render via `injectSvgTitleDesc` because Plot doesn't emit them itself. `findChartSvg` handles both Plot output shapes (bare SVG, or `<figure>` wrapping a legend + SVG for `legend: true` configs).
3. A `<details>` disclosure with a `<table>` rendering every data point — the keyboard-navigable / screen-reader-friendly fallback for non-visual users.
4. Palette from `_internal/palette.ts` only — Viridis / Cividis for sequential, ColorBrewer Set2 for categorical. Both colour-blind-safe.
5. AA-contrast axis text via `:where(.dark)` flips in `_internal/chart-envelope.scss`.
6. `prefers-reduced-motion` → `data-no-transitions` marker on the SVG, CSS strips animations + transitions.

A custom ESLint rule in [`libs/shared/charts/eslint.config.mjs`](libs/shared/charts/eslint.config.mjs) bans direct imports of `d3-scale-chromatic` outside `_internal/palette.ts` so a future contributor can't bypass the colour-blind-safe contract.

### Component contract

Every `<lib-*-chart>` exposes the same Signal-based shape per ADR-0023:

```ts
[data]: readonly T[];
[caption]: string;
[description]: string;
[ariaLabel]: string;
[colorScheme]?: 'sequential' | 'categorical';
// + chart-specific keys (xKey, yKey, categoryKey, valueKey, seriesKey, …)
```

Re-renders triggered by Angular's `effect()` on input changes; the previous SVG is `replaceChildren`-d out so there's no DOM accumulation across data updates.

## Notes for the reviewer

- **Why three SCSS files importing one shared envelope?** Extracted at the third consumer per CLAUDE.md's "three similar lines is better than a premature abstraction" rule — bar + donut + stacked-bar share ~70 LOC of figure / caption / fallback / dark-mode chrome. `_internal/chart-envelope.scss` is the consolidation; each chart's `.scss` is now 4-20 LOC of chart-specific tweaks.
- **Why is `<lib-donut-chart>` raw D3 rather than Plot?** Plot's design philosophy explicitly excludes pie/donut marks ("a bar chart is almost always more legible"). The audit-log outcome breakdown reads naturally as a donut (the centre carries the total). Raw `d3-shape` is the lower-level fallback ADR-0023 reserves precisely for this kind of case; the component's API is identical to the Plot-backed siblings.
- **Why does the donut also stamp per-slice `<title>`?** Belt-and-suspenders. The top-level SVG `<title>` reads the caption; per-slice `<title>` reads "category: value" on hover (the SVG-native tooltip convention) for keyboard / screen-reader users who land on a specific slice.
- **Why no `pnpm.overrides` adjustment for `d3-*` transitives?** None of the new deps brought a vulnerability in this install. The `pnpm audit --audit-level=moderate` gate from #161 stays green.
- **What's deliberately deferred to PR 3?** The `/audit`-page integration — data aggregation from the current page (`AdminAuditPage` rows already loaded), the actual `<lib-*-chart>` placements above the existing table, the i18n strings for the captions / descriptions / aria-labels. No mock SAMPLE data shipped in this PR — every test uses local fixtures so the lib stays decoupled from any specific consumer.

## Test plan

- [x] `pnpm nx test shared-charts` — **13 specs pass** across the three components.
- [x] `pnpm nx lint shared-charts` — clean, including the custom `no-restricted-imports` guard on `d3-scale-chromatic`.
- [x] `pnpm nx build shared-charts` — clean (TS strict + ng-packagr).
- [x] `pnpm nx run-many -t lint test build --projects=shared-charts,portal-shell,portal-admin` — 12/12 tasks green.
- [x] `pnpm nx build portal-shell --configuration=production` — i18n-strict prod build clean. The lib ships no i18n marks (axis labels are caller-supplied per ADR-0023's i18n posture), so no xlf entry change here.
- [ ] **Visual smoke (deferred to PR 3 when the components are placed on `/audit`)** — `<figure>` + caption visible, SVG `<title>` exposed by VoiceOver / NVDA, `<details>` fallback expands to a table, dark-mode toggle flips axis text + Cividis palette, `prefers-reduced-motion` strips Plot's fade-in.

## What's next

PR 3 wires the three components onto the `/audit` page: aggregates `AdminAuditPage.items` client-side into the three required shapes (daily totals, outcome counts, daily-by-event-type pivots), places them above the existing filter form, ships the i18n strings for the captions and descriptions in `messages.fr.xlf`. Bundle impact on the lazy `audit` chunk gets verified there (the ~65 KB gzip plan from the ADR).

---------

Co-authored-by: Julien Gautier <julien.gautier@apf.asso.fr>
Reviewed-on: #171
2026-05-16 21:56:28 +02:00
julien cb69a692e7 chore(ts): drop deprecated baseUrl from tsconfig.base.json (#101)
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## Summary

Remove the deprecated `baseUrl: "."` from [`tsconfig.base.json`](tsconfig.base.json). TypeScript 5.x flags it as deprecated; it stops functioning in TS 7.0. Since TS 5.0, `paths` keys are resolved relative to the tsconfig file where they are declared when `baseUrl` is absent — and the repo root is exactly what `baseUrl: "."` was pointing at.

## Why this is a no-op

Our `paths` entries already start with `./libs/shared/.../src/index.ts` (relative to the repo root, which is `tsconfig.base.json`'s directory). With or without `baseUrl: "."`, the resolver lands on the same files. No other tsconfig in the workspace declares `baseUrl` (only `tsconfig.base.json` did), and the only path imports across the codebase are the workspace aliases (`shared-ui`, `shared-state`, `shared-tokens`, `shared-util`, `feature-auth`).

`rootDir: "."` stays — it is independent of the deprecation and removing it would change `dist/` layout semantics across the workspace. Revisit only if a future TS version flags it.

## Verification

`pnpm exec nx run-many -t lint test build --projects=portal-shell,portal-admin,shared-ui,shared-state,shared-tokens,shared-util` — green across 6 projects.

The IDE deprecation warning is gone.

---------

Co-authored-by: Julien Gautier <julien.gautier@apf.asso.fr>
Reviewed-on: #101
2026-05-12 02:06:23 +02:00
julien 8329fa133d refactor(libs): graduate Icon / LayoutStateService / brand tokens to libs/shared/* (#99)
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## Summary

Per ADR-0020 §"Shared-libs graduation": the three primitives that `portal-shell` (today) and `portal-admin` (next) will both share move out of `apps/portal-shell/src/` and into the workspace libs. Mechanical move — no behaviour change, prepares the ground for the admin-app PR.

## Graduated

| Primitive | Old location | New location |
|---|---|---|
| `Icon` component (+ `IconName` type) | `apps/portal-shell/src/app/components/icon/` | [`libs/shared/ui/src/lib/icon/`](libs/shared/ui/src/lib/icon/) |
| `LayoutStateService` (+ `ThemeMode` type) | `apps/portal-shell/src/app/state/` | [`libs/shared/state/src/lib/`](libs/shared/state/src/lib/) |
| Brand-palette `@theme` block | `apps/portal-shell/src/styles.css` | [`libs/shared/tokens/src/brand-tokens.css`](libs/shared/tokens/src/brand-tokens.css) |

## Notable changes

- **Icon selector renamed `app-icon` → `lib-icon`.** Required by the lib's ESLint `@angular-eslint/component-selector` rule (prefix `lib` for shared libs). All ~20 usages in `portal-shell` templates updated in one sweep.
- **New `shared-state` library** generated via `nx g @nx/angular:library libs/shared/state`. Mirrors the existing `feature-auth` / `shared-ui` shape (vite + Angular + spec setup). `tsconfig.base.json` path alias `shared-state` added by the generator.
- **Lib tags rebalanced** to satisfy the module-boundary lint rule:
  - `shared-state`: new lib → `scope:shared, type:shared`.
  - `shared-ui`: was `scope:portal-shell` (scaffold default) → `scope:shared, type:shared`.
- **`shared-tokens` is now CSS-only.** The placeholder TS function is gone; `index.ts` is an empty `export {}` with a TODO note. Vitest config flips `passWithNoTests: true` so the test target stops failing on the empty lib.
- **`portal-shell`'s `styles.css`** drops the inline `@theme {}` block and instead `@import`s `../../../libs/shared/tokens/src/brand-tokens.css`. Both apps will read the same source.
- Placeholder scaffolded files in `shared-ui/src/lib/shared-ui/` removed.

## Verification

- `nx run-many -t lint test build` across `portal-shell, shared-ui, shared-state, shared-tokens` — green.
- Tests redistributed: **portal-shell 28**, **shared-state 9**, **shared-ui 3**, **shared-tokens 0** = 40 total (same as before the move).
- Production build: **128.7 KB gzip** initial per locale (was 128.5 KB on `main` — noise-level delta).
- Brand-color CSS variables (`--color-brand-primary-500: #12546c`, …) still inlined in the produced `styles-*.css`.
- `dist/.../browser/{en,fr}/` emitted as expected.

## What this PR explicitly does NOT do

- Move other components (Header, Sidebar, Footer, ThemeSwitcher, LocaleSwitcher). Those are app-specific shell concerns; if `portal-admin` ends up needing them, they graduate in their own PR.
- Set up `portal-admin`. That's the next PR on the admin track — and now imports from `shared-ui` / `shared-state` / `shared-tokens` will Just Work.
- Refactor `feature-auth`'s tagging. It still says `scope:portal-shell`; revisit when the auth implementation actually lands and the dual-audience design (per ADR-0008) makes the right scope obvious.

## Test plan

- [x] Per-project run-many — green.
- [x] Production build emits both locales with brand tokens applied.
- [ ] Manual: `pnpm exec nx serve portal-shell` — the dev experience is unchanged.
- [ ] Manual: serve-static + locale switcher / theme switcher / sidebar collapse / navigation — all the behaviours the moved primitives drive still work in production.

---------

Co-authored-by: Julien Gautier <julien.gautier@apf.asso.fr>
Reviewed-on: #99
2026-05-12 01:17:30 +02:00
Julien Gautier 8de19320c5 chore: generate shared and feature libs with module boundaries per ADR-0003
Generate the four phase-4 libraries:

- libs/shared/tokens (project name shared-tokens) - plain TS lib via
  @nx/js:library; will host the a11y design tokens (palette,
  contrast tiers, spacing, motion) once Tailwind lands in phase 5;
  consumable by both apps; tagged scope:shared, type:shared.
- libs/shared/util (shared-util) - plain TS lib for cross-cutting
  utility code; tagged scope:shared, type:shared.
- libs/shared/ui (shared-ui) - Angular standalone library that will
  host the spartan-ng components copy-pasted in phase 5; Angular-only
  so tagged scope:portal-shell, type:shared. unitTestRunner=
  vitest-analog because vitest-angular requires a buildable lib.
- libs/feature/auth (feature-auth) - placeholder Angular standalone
  feature lib to demonstrate the type:feature pattern; tagged
  scope:portal-shell, type:feature.

@nx/enforce-module-boundaries depConstraints replaced (root
eslint.config.mjs) with the rules from ADR-0003:

  scope:portal-shell -> scope:portal-shell, scope:shared
  scope:portal-bff   -> scope:portal-bff,   scope:shared
  scope:shared       -> scope:shared
  type:app           -> type:feature, type:shared
  type:feature       -> type:feature, type:shared
  type:shared        -> type:shared

This forbids portal-shell from importing portal-bff code (and vice
versa) and prevents shared libs from depending on feature libs.

Project names follow the convention of ADR-0003 (feature-<name> /
shared-<scope>) by passing --name explicitly to the generator; the Nx
22 default takes only the last directory segment.

Sanity check: pnpm nx run-many -t lint and -t test pass for the 8
projects (4 apps/e2e + 4 libs).

Side effects from the generators: tsconfig.base.json paths populated
with the lib import aliases; nx.json gains vite/playwright plugin
entries; .gitignore picks up vitest.config.*.timestamp* (Vitest temp
files); package.json gains @analogjs/vitest-angular and related
devDeps; pnpm-lock.yaml regenerated. Two eslint-disable comments in
portal-bff-e2e support files were trimmed by lint --fix - those files
already lint clean without the directive.
2026-04-30 17:37:29 +02:00
Julien Gautier bea5e1954f chore: generate portal-shell and portal-bff apps per ADR-0004 / ADR-0005
Add the @nx/angular, @nx/nest, @nx/vite, @nx/eslint plugins, then
generate the two apps. Adjust the empty-template tsconfig.base.json
to be Angular-compatible (drop project references and customConditions
that the empty-template defaults to but Angular doesn't support; keep
the strict-TS extensions from ADR-0004).

apps/portal-shell (Angular 21):
- standalone APIs, routing, SCSS, esbuild
- vitest-angular as unitTestRunner, playwright for e2e
- strict mode
- tags scope:portal-shell, type:app
- app.config.ts wired with provideZonelessChangeDetection() per
  ADR-0004 (Angular 21 + Nx 22 generates without zone.js by default)

apps/portal-bff (NestJS 11):
- Express adapter (default per ADR-0005)
- Jest as unitTestRunner
- tags scope:portal-bff, type:app
- main.ts wired with a global ValidationPipe configured
  whitelist + forbidNonWhitelisted + transform per ADR-0005
- Phase-2 security additions (helmet, CORS, sessions, CSRF, rate
  limit, auth guards, error filter) deferred to their respective
  ADRs - placeholder comment in main.ts

Workspace dependencies: class-validator + class-transformer added
(required by NestJS ValidationPipe at runtime). Nx-generated
.gitignore additions (.angular, __screenshots__) merged into ours.
.vscode/extensions.json and launch.json added by Nx are kept (do not
override our existing settings.json).
2026-04-30 16:12:42 +02:00
Julien Gautier 64ea72b321 chore: bootstrap Nx workspace per ADR-0002
Initialize the Nx 22 monorepo via copy-from-scratch (the
create-nx-workspace 'apps' preset is now mapped to nrwl/empty-template
in Nx 22). Workspace files extracted from a scratch generation and
adapted to the project:

- package.json: name 'apf-portal' (renamed from @org/source default)
- tsconfig.base.json: customConditions aligned to apf-portal; strict TS
  extended per ADR-0004 with noUncheckedIndexedAccess,
  exactOptionalPropertyTypes, noPropertyAccessFromIndexSignature
- nx.json: nxCloudId stripped (on-prem, no Nx Cloud SaaS)
- .prettierrc: project convention (singleQuote, semi, printWidth 100)
- pnpm-workspace.yaml: apps/* and libs/** for the integrated layout
- pnpm-lock.yaml committed

Plugins for Angular, NestJS, Vite, ESLint will be added in the next
phase when apps are generated. The auto-generated CLAUDE.md / AGENTS.md
/ .claude/ / .github/ from the bootstrap were intentionally not
carried over (we keep our own CLAUDE.md and use Gitea, not GitHub).
2026-04-30 16:07:11 +02:00