Files
TREK/shared
Maurice ea9e997338 feat(tours): show the known SAC grades along a hike (MAP-03)
A hike in the planner, being edited or viewed as an import, now has an
"SAC grades" card. Switched on, it asks the router which OpenStreetMap
ways lie under the line (matched on foot, every grade of path open) and
the server reads their sac_scale through the Overpass mirrors, the same
trail-grades read the mountain bike grades use. The grades are drawn
along the route on the planner map in one ramp of a single hue, T1 to
T6, and listed by share and length; a row draws its class alone. Each
row names its source in a tooltip: the SAC hiking scale and the
sac_scale value OpenStreetMap wrote.

What is not known stays unknown and says why, never T1: a way without
a grade, a grade that names no single step (handed on as written), a
stretch with no way clearly under the tour's line, or a way that could
not be asked about. For imported tracks and stretches drawn by hand a
matched way only counts where it keeps within 25 m of the tour's own
line, so the original line is kept and nothing is guessed. The router's
own reading of the scale is not asked for, since it may be normalised.

The routing limit of a planned hike sits apart as a setting with its
own badge, and a known step above it is marked. Nothing about the tour,
its places or its days changes; switched off, the map is as it was.
No regional colour categories and no grade derived from slope, height
or trail markings.
2026-10-20 15:17:23 +02:00
..
2026-06-16 22:22:45 +02:00
2026-06-16 22:22:45 +02:00
2026-08-27 13:22:39 +02:00

@trek/shared

Single source of truth for TREK's API contracts, expressed as Zod schemas and consumed by both the server (request validation + inferred DTO types) and the client (typed requests/responses).

This package is part of the incremental NestJS + React 19 migration (see the "Brownfield Rewrite" board). It is intentionally dormant until modules start importing it — adding it changes nothing for users.

Rules

  • One folder per domain: src/<domain>/<domain>.schema.ts (+ .spec.ts).
  • Domain-agnostic building blocks live in src/common/.
  • A route is only considered migrated once its contract lives here.
  • Schemas are the source of truth; server DTOs and client types are inferred from them (z.infer<typeof schema>), never hand-duplicated.

Consumption (dev)

Both apps resolve @trek/shared to this package's TypeScript source:

  • Server (tsx): via paths in server/tsconfig.json.
  • Client (vite): via resolve.alias in client/vite.config.ts (+ paths for the type-checker).

Production packaging (Docker / workspace wiring) is introduced in card F2, when the server first depends on this package at runtime. Until then prod builds are untouched.

Not yet here

The canonical error envelope is finalised in card F5 (it must match TREK's current Express error responses byte-for-byte), so it is deliberately not invented in F1.