A stop counted as the booked night whenever a stay began at its place on its day, so a hotel on its check-in day twice (the booking's own stop and a rest the traveller planned there) was read as two nights. Both were held to the check-in: the rest waited for the room or was set back to it, and with a check-in far from its arrival the rest and every stop behind it moved onto the next day's card. oneNightPerStay in shared keeps the night and its check-in on the last visit of the place and turns the earlier ones into ordinary stops, still a hotel. The browser and calculate_roadtrip both run it, the stored ride slot times only that row by the check-in, and opening an earlier visit in road trip mode opens the stop rather than the night. Refs #2636
@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): viapathsinserver/tsconfig.json. - Client (
vite): viaresolve.aliasinclient/vite.config.ts(+pathsfor 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.