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Archive map-core-package, sync spec to main

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All 28 tasks complete. Spec synced to openspec/specs/map-core/.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Ullrich Schäfer 2026-04-12 22:32:54 +02:00
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openspec/changes/map-core-package/design.md
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## Context
The Planner's map configuration is spread across multiple files:
- `packages/map/src/layers.ts` — base tile layer URLs and overlay tile configs
- `apps/planner/app/components/ColoredRoute.tsx` — 7 color palettes (surface, highway, smoothness, tracktype, cycleway, bikeroute, grade) + elevation color function
- `apps/planner/app/lib/poi-categories.ts` — 9 POI categories with Overpass queries, icons, colors, profile mappings
- `apps/planner/app/lib/z-index.ts` — marker z-index layering constants
- `apps/planner/app/lib/poi-snap.ts` — snap distance threshold
All of this is renderer-specific (Leaflet) and app-specific (Planner). A mobile app using MapLibre would need to duplicate all of it.
## Decisions
### D1: Package structure
```
packages/map-core/
src/
index.ts — re-exports everything
tiles.ts — base layers + overlay layers (URLs, attribution, zoom)
colors/
surface.ts — SURFACE_COLORS, DEFAULT_SURFACE_COLOR
highway.ts — HIGHWAY_COLORS, DEFAULT_HIGHWAY_COLOR
smoothness.ts — SMOOTHNESS_COLORS, DEFAULT_SMOOTHNESS_COLOR
tracktype.ts — TRACKTYPE_COLORS, DEFAULT_TRACKTYPE_COLOR
cycleway.ts — CYCLEWAY_COLORS, DEFAULT_CYCLEWAY_COLOR
bikeroute.ts — BIKEROUTE_COLORS, DEFAULT_BIKEROUTE_COLOR
elevation.ts — elevationColor(), routeGradeColor()
maxspeed.ts — maxspeedColor()
index.ts — re-exports all color maps
poi.ts — PoiCategory type + all category configs
z-index.ts — Z_WAYPOINT, Z_POI_MARKER, etc.
snap.ts — SNAP_DISTANCE_METERS
```
### D2: No rendering code
`map-core` contains zero rendering code — no React, no Leaflet, no MapLibre. Just TypeScript constants, types, and pure functions. This ensures it works in any environment (web, mobile, Node.js, tests).
### D3: Backwards-compatible migration
The existing `packages/map/` package re-exports `baseLayers` and `overlayLayers` from `map-core` so existing imports continue to work. Planner components are updated to import directly from `@trails-cool/map-core` where possible. No breaking changes to public APIs.
## Risks / Trade-offs
- **More packages in the monorepo** — one more thing to maintain. Mitigated by the package being pure data with no dependencies.
- **Import path changes** — Planner components need updated imports. Straightforward find-and-replace.