# leaflet_svelte

Weather-balloon trajectory planner. Static SvelteKit SPA that talks to a Django
REST backend.

## Quick start

```bash
npm install

# dev against a local Django on :8000 (see .env.example)
npm run dev

# dev with a fake backend (no Django needed)
VITE_USE_MOCK_API=true npm run dev

# type-check + production build (emits static files to ./build)
npm run check
npm run build
```

Serve `build/` from any static host. Route fallback is `index.html`.

## Documentation

- [`docs/ARCHITECTURE.md`](docs/ARCHITECTURE.md) — module layout and data flow.
- [`docs/CONVENTIONS.md`](docs/CONVENTIONS.md) — naming, styling, component patterns.
- [`docs/ADDING_A_FEATURE.md`](docs/ADDING_A_FEATURE.md) — walkthrough for adding
  a new panel/feature.
- [`mocks/`](mocks/) — Vite dev-server mock backend.

## Stack

- **SvelteKit + Vite** (TypeScript, Svelte 5 runes) — built as a pure SPA with
  `@sveltejs/adapter-static`.
- **MapLibre GL JS** via the `$map` abstraction — the app never imports
  `maplibre-gl` directly outside `src/lib/map/`.
- **Sveltestrap** + Bootstrap 5 for UI chrome.
- **Chart.js** for the ascent/descent profile editor.
- **@vincjo/datatables** for editor tables.