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Split notes into a title + body, with light self-authored markdown
Both NoteSaveForm (create) and the popup's inline Edit form now have
a title input (-> properties.name, shown in the black header, same as
every other waypoint popup) and a separate body textarea (->
properties.description) for more detail than a single line.

New formatNoteBody renders that body with a small self-rolled
markdown subset — **bold**, *italic*, auto-linked URLs (reusing the
existing linkify), newlines to <br> — deliberately a new function, not
a change to formatDescription: that one renders uploaded GPX/park4night
content, which is untrusted, and docs/nps-resources.adoc already has a
specific call not to add markdown rendering to that path. A note's
body is written by the logged-in viewer themselves, not uploaded, so
that concern doesn't apply here — the escape-then-selectively-markup
order (linkify first, since it does its own escaping, then wrap
already-escaped text in real <strong>/<em> tags) keeps it safe either
way.

Verified live: title renders in the popup header, **bold**/*italic*/
a URL in the body all render correctly. Full test suite: 115 runs, 0
failures (unaffected — description is just another property, not
something the backend routes inspect).
2026-09-09 13:03:42 +02:00

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= TODO — implementation ideas
Ideas for offline use in a camper van. Implement incrementally, grouped by topic.
The local server has access to both the vehicle's hardware and offline data — the
vision is to grow it into a complete offline control center: resources, data, and
independence from connectivity.
== Offline data and cartography
* [ ] Offline vector tiles (PMTiles/MBTiles) for Europe/world via Planetiler or MapTiler
* [x] Shaded relief / DEM layer — hillshade toggle in the sidebar, sourced from public Terrarium tiles online; reads `data/terrain.pmtiles` for offline if one's been generated (see docs/development.adoc), otherwise the toggle is online-only for now
** [ ] Terrain slope readout for parking (numeric, not just visual shading)
* [ ] Contour lines from OSM for hikes and mountain passes
* [x] Overpass/OSM scripts to extract POIs (drinking water, dump stations, LPG, public toilets, laundromats, shops, springs) — `rake overpass:pois`, see docs/development.adoc; writes a `.geojson` to drop in `data/gpx/` or upload, not called by the running app itself
* [ ] Import Park4Night / iOverlander / Freecampsites data
* [ ] Kiwix/ZIM offline Wikipedia linked to POI GPS coordinates
* [x] Cache weather forecast when temporarily connected — Open-Meteo 3-day forecast in the Radar flyout, last successful fetch cached in localStorage as a fallback when offline
** [x] Cache the radar tile *images* too — `public/sw.js`, network-falling-back-to-cache for RainViewer tile requests, registered from layout.erb
== NPS visual style
* [ ] Map Park4Night/OSM place types to NPS pictograms (campground, primitive camp, drinking water, dump station, viewpoint, picnic table) for instant recognition without reading text
* [ ] Restyle popovers, side panels, and point detail views after the NPS Unigrid layout system (Massimo Vignelli) with Frutiger/Rawlinson Roadside-style typography
** [x] Top black banner (full width): "MAPTOOL" on the left, live map-center coordinates in the center, offline-data status dot on the right, white sans-serif type — DEM elevation and a hamburger menu skipped (no DEM layer yet; sidebar isn't mobile-collapsed, so nothing for a hamburger to reveal)
** [ ] Point detail/sidepanel: black header banner with white location name and an NPS pictogram in the corner; amenities (water, waste, power, slope) shown as a pictogram grid, no extra text; action buttons for "route here" (Valhalla), "start leveling", "save offline"
** [x] Filter panel as a "Unigrid Matrix" — an icon grid to toggle categories on/off, styled like the legend on an official NPS paper map, instead of plain dropdowns
* [ ] Custom vector style (MVT/MapLibre) using the NPS color palette — muted natural tones for forests, water, and contours — so POIs and routes stand out at high zoom
** [ ] Landuse & protections: distinct styling for national parks, nature reserves (translucent green/gray-green), military zones, and private land (important for wild camping)
** [x] Elevation-tinted terrain — a `color-relief` layer (hypsometric tint, this app's own green→brown→gray palette) under the hillshade layer, same "Terrain shading" toggle
** [x] Road hierarchy: clearly distinguish paved roads from unpaved/gravel/track — critical for knowing if the camper can get there
== Main menu reorganization (4 modules)
* [ ] Explorer: place filters (Park4Night + OSM layers: water, waste, LPG, showers); map layers (contours, hillshade, satellite cache)
* [ ] Navigation & route: offline router (Valhalla) with vehicle dimensions (height, weight, width); route elevation profile and isochrones
* [ ] Offline hub: manager for downloaded PMTiles (country vector maps); downloaded Wikipedia archives; cached radar and weather
* [ ] Camper & HW: level gauge (wheel-chock leveling); solar calculator (sun path on the map); telemetry (Victron / Home Assistant)
== Custom layers & data
* [x] GPX/GeoJSON drag-and-drop import (Wikiloc, Komoot, own GPX tracks — also FIT), auto-styled by category with a generated elevation profile — KML not supported (only GPX/FIT/GeoJSON/.zip)
* [x] User overlay: offline drawing of custom points with notes (e.g. "turning space for a long vehicle", "narrow gate", "good swimming spot") — one click on the map, pick or name a `.geojson` layer, saved into the same GpxStore the Tracks panel already reads (so visibility/popup come for free)
** [x] Save a distance/area shape as a note too — Measure already draws these by hand, so a "Save" button there (not a second click-to-draw UI in the notes tool) reuses that instead of duplicating it; both share one `NoteSaveForm` (notes.js). `gpx.js`'s `_addLayers` now renders Polygon and note-flagged LineString features (fill/outline, dashed line), not just points
** [x] Edit/delete individual notes from their popup (logged-in only) — targets a feature by a client-generated `properties.id` (`GpxStore#update_feature`/`#delete_feature`), not array position
** [x] Measure's vertices are draggable (mousedown + move, `event.preventDefault()` to stop the map's own drag-pan) and deletable (click to select — shown in yellow — then Delete/Backspace)
** [x] Fixed: a note saved before `properties.id` existed (the earliest test notes) had no Edit/Delete-able target — the popup no longer offers them without an id, and `rake gpx:backfill_note_ids` assigns one to any pre-existing Note feature missing it
** [x] Title + body split (name in the black header, body in a separate field) with light self-authored markdown (`**bold**`, `*italic*`, auto-linked URLs) in the body — a *new*, separate `formatNoteBody` (not `formatDescription`, which stays plain/untrusted-safe for uploaded GPX/park4night content per docs/nps-resources.adoc's earlier markdown-rendering call)
** [x] Gated behind login: NotesControl isn't added to the map at all when logged out, Measure's "Save as note" button is hidden (Measure itself stays usable either way)
** [ ] The Unigrid Matrix category filter only re-slices the *points* source (`_applyCategoryFilter`) — toggling the "Note" category off hides point notes but not polygon/line ones sharing that category
* [ ] Offline satellite tile caching (e.g. ESRI) for a selected route area — key for judging surface quality and obstacles when wild camping
== Nice to have (later)
Deprioritized for now — revisit after the sections above land.
=== Vanlife features
* [ ] Offline routing (Valhalla/OSRM) with vehicle parameters (height, weight, width)
* [ ] Solar calculator — sun path for location/date, shadows from surroundings, camper orientation
=== HW integration
* [ ] Level gauge from IMU (ESP32/RPi) — camper tilt, wheel-chock leveling calculation
* [ ] Victron/Home Assistant via MQTT or WebSocket — battery SoC, tank levels, temperatures
* [ ] Plot GPS track with historical battery/speed data