## Error handling
Requested: a centralized error-handling service on the API, custom error
codes shared across apps, and a client-side error service for i18n labels.
- packages/shared/src/errors/error-codes.ts — ErrorCode enum + ApiErrorResponse
contract. Single source of truth: neither side hardcodes a raw error string
the other has to guess at.
- apps/api: HttpError now carries an ErrorCode (not just a message).
ErrorHandlerService (new) centralizes every "how do we turn a thrown error
into an HTTP response" decision — app.ts's error middleware is now a thin
adapter calling into it. API messages reverted to English/dev-facing (they
were French from an earlier pass) since user-facing text is now generated
client-side from the code.
- apps/web: ApiClient (class, singleton instance) throws ApiError carrying
the code. ErrorMessageService (new) maps every ErrorCode to a localized
label, structured with a Locale type from the start (only "fr" exists, but
adding a language later is "add a locale to the map", not "hunt down every
hardcoded string"). LoginPage/SignupPage now display
errorMessageService.getLabel(err.code), never err.message directly.
- Tests strengthened to assert on `code`, not just HTTP status (Mocha +
Cucumber, new "the response error code should be" step). Cypress mocks
updated to the new {code, message} response shape.
## Code quality pass
Per explicit feedback: heavy JSDoc on every interface/type/class/function/
method/member touched in this PR, explicit public/private visibility on
every class member (ApiClient, ErrorMessageService, ErrorHandlerService,
HttpError), no HTML/logic mixing (styling extracted out of components
entirely, never inline).
ApiClient/ErrorMessageService were initially written as static-only classes;
switched to instance-based singletons (matching ErrorHandlerService's
existing pattern) after Biome's noStaticOnlyClass rule flagged the
static-only shape as an anti-pattern — same "class with visibility
modifiers" outcome, without fighting the linter.
## SCSS + theming
- apps/web/src/styles/_theme.scss — design tokens as CSS custom properties
on :root (colors, spacing, typography), not plain Sass variables — makes
them available at runtime, not just compile time, so a future theme
switch (e.g. dark mode) is "redefine these variables" rather than
rebuilding stylesheets.
- apps/web/src/styles/global.scss replaces the old single index.css:
reset + theme import only, loaded once from main.tsx.
- Per-page/component styles colocated (HomePage.tsx + HomePage.scss);
styles shared by multiple pages within one feature live in that feature's
folder (features/auth/auth-form.scss, used by both Login/SignupPage) —
not duplicated per page, not dumped in the global stylesheet either.
- Component-level .scss files intentionally don't `@use` the theme
partial: they only consume CSS custom properties (global at runtime via
global.scss), not Sass-level symbols, so importing it would do nothing —
documented inline rather than left as a silently-redundant import.
- vite.config.ts opts into Sass's modern compiler API to silence a
legacy-js-api deprecation warning on every build.
## specs/ updates
- New specs/error-handling.md — the ErrorCode/ApiErrorResponse contract,
both services, with a flow diagram.
- New specs/frontend-architecture.md — apps/web folder structure, routing/
auth-guard flow, SCSS/theming conventions.
- specs/batch-cooking-architecture.md links to both (original doc content
otherwise untouched — it's the user's own hand-authored source doc).
## Verification
Full lint/mocha/cucumber/build green. Manually re-verified the whole auth
flow in a real browser against native dev servers (not just the automated
suites): signup, the EMAIL_ALREADY_IN_USE → "Cet email est déjà utilisé"
translation end-to-end (confirmed the raw API response carries the English
dev message + code, and the UI shows the French label), wrong-password
INVALID_CREDENTIALS → its label, and confirmed the theme tokens actually
apply (computed button background-color matches --color-primary, card
max-width matches the token value) rather than trusting the build succeeding.
* Scaffold generic pnpm monorepo (api + web + shared)
Sets up the initial project infrastructure only, no business modules yet:
- apps/api: Express/TypeScript backend skeleton (healthcheck route, zod-validated
env config, error handling, Prisma initialized with no models yet, Postgres
as the target DB)
- apps/web: React/Vite/TypeScript frontend skeleton, Capacitor-ready for the
future mobile app
- packages/shared: empty placeholder for types/schemas shared between api and
web once the data model is defined
- Tooling: Biome (lint/format), Mocha+Chai+Supertest (api tests), Cypress
(web e2e smoke test), GitHub Actions CI (lint + test + build + e2e)
- docker-compose.yml for local Postgres
- README documents setup steps, including the Cypress binary caveat (pnpm
install doesn't always fetch the native binary — needs `cypress install`
run locally per machine)
Fixes along the way:
- apps/web/cypress.config.ts: disable GPU on browser launch for
headless/sandboxed environments
- apps/web/tsconfig.*: split into solution/app/node tsconfig files (standard
Vite pattern) — the previous single-file setup caused `tsc -b` to emit
compiled .js/.d.ts next to vite.config.ts and cypress.config.ts
* Remove hardcoded credentials from committed env/compose files
.env.example and apps/api/.env.example had a real usable default
credential pair (batchcooking/batchcooking) baked in, and
docker-compose.yml fell back to the same values via ${VAR:-default}
if .env was missing. Neither should ship a working credential:
- .env.example / apps/api/.env.example now use "changeme" placeholders
that must be edited before use.
- docker-compose.yml uses ${VAR:?...} instead of ${VAR:-default} for
POSTGRES_USER/PASSWORD/DB, so compose fails loudly if .env isn't set
up rather than silently falling back to a guessable credential.
Healthcheck reads the container's own env var ($$POSTGRES_USER)
instead of duplicating the value in the compose file.
- README updated to say .env.example must be edited, not just copied.
Verified: `docker compose config` fails with a clear message when
.env is absent, and resolves correctly once .env is filled in.
* Fix CI: remove pnpm version conflict with packageManager field
pnpm/action-setup@v4 errored with "Multiple versions of pnpm
specified" because the workflow pinned version: 10 while
package.json's packageManager field pins pnpm@10.12.4. The action
already reads packageManager automatically, so drop the redundant
version input.
* Fix CI: install Cypress binary explicitly before running e2e
Same root cause as the README caveat: pnpm install doesn't reliably
trigger Cypress's postinstall binary download, so `cypress run` failed
in CI with "The cypress npm package is installed, but the Cypress
binary is missing." Add an explicit `cypress install` step, and cache
~/.cache/Cypress keyed on the lockfile so subsequent runs don't
re-download it.
* Fix Cypress config loading: give the solution tsconfig a module system
apps/web/tsconfig.json (the tsc -b "solution" file) had no
compilerOptions, only files/references. Cypress's bundled ts-node
picks the nearest tsconfig.json to transpile cypress.config.ts, and
with no "module" specified it defaulted to CommonJS while
package.json declares "type": "module" — causing:
ReferenceError: exports is not defined in ES module scope
Adding module/moduleResolution to the solution config (harmless for
tsc -b itself, since it only builds the referenced projects) fixes
the mismatch. This regressed after the earlier fix for the stray
vite.config.js emission and was never re-verified against Cypress
until CI caught it.
kyuno053
