# rMaps — Spatial Intelligence

**Module ID:** `rmaps`
**Domain:** `rmaps.online`
**Version:** 0.1.0
**Framework:** Next.js 14 / React 18 / MapLibre GL / Zustand (client-side)
**Status:** Active

## Purpose

Real-time collaborative location sharing and navigation for groups. Room-based ephemeral spaces where participants share GPS locations with configurable privacy levels. Supports indoor navigation via c3nav (CCC events) and outdoor via OSM/MapLibre. Rooms auto-expire after 7 days of inactivity.

## Data Model

### Client-Side Types (no database)

| Type | Key Fields | Description |
|------|-----------|-------------|
| **Room** | slug, settings, participants (map), waypoints[], expiresAt | Collaborative map space |
| **Participant** | id, emoji, color, location, privacySettings, status | User in a room |
| **ParticipantLocation** | lat, lng, accuracy, altitude, heading, speed, source, indoor | GPS/network/manual position |
| **Waypoint** | id, name, type, emoji, lat, lng, createdBy | Named point of interest |
| **Route** | from, to, segments[] | Navigation route with instructions |
| **PrecisionLevel** | exact/building/area/approximate | Privacy granularity |

### Storage

- In-memory rooms (Zustand store)
- Room lifecycle: 7-day auto-expiry
- Future: Automerge CRDT for persistent rooms

## Permission Model

### Space Integration

- **SpaceVisibility:** PUBLIC by default (anyone can join rooms by slug)
- **Default role for open spaces:** PARTICIPANT (can share location, add waypoints)

### Capabilities

| Capability | Required SpaceRole | AuthLevel | Description |
|-----------|-------------------|-----------|-------------|
| `view_map` | VIEWER | BASIC | See map and participant locations |
| `add_markers` | PARTICIPANT | STANDARD | Add waypoints and POIs |
| `share_location` | PARTICIPANT | STANDARD | Broadcast own GPS location |
| `moderate_markers` | MODERATOR | STANDARD | Edit/delete others' waypoints |
| `configure_map` | ADMIN | ELEVATED | Change room settings, expiry, privacy defaults |

### Module-Specific: Privacy Model

Per-participant privacy settings override permission capabilities:
- **PrecisionLevel:** Controls location accuracy (exact → approximate fuzzing)
- **ghostMode:** Hides participant from map entirely
- Privacy is user-controlled, not admin-controlled

### Current Auth Implementation

- EncryptID optional (anonymous join allowed)
- Auth in localStorage (`rmaps-auth`)
- No room-level access control

## API Endpoints

| Method | Path | Auth Required | Capability | Description |
|--------|------|---------------|------------|-------------|
| GET | /api/health | No | — | Health check |
| GET | /api/c3nav/[event] | No | — | Proxy c3nav indoor map data |
| POST | /api/routing | — | — | Route calculation (planned) |

No native CRUD API — rooms are in-memory. Future: WebSocket sync server.

## Canvas Integration

Embeds as shapes on rSpace canvas:
- **`folk-destination`**: Map location marker with emoji
- **`demo-map-marker`**: Interactive map POI
- Click to expand into full map view with participant locations

## Cross-Module Dependencies

| Module | Integration |
|--------|------------|
| **rSpace** | Canvas shape embedding (destination/marker shapes) |
| **rTrips** | Trip itinerary locations feed into map |
| **rCal** | Event locations shown on map timeline |
| **EncryptID** | Optional identity for persistent rooms |

## Local-First / Offline Support

- Fully client-side — works offline (GPS continues)
- Automerge sync planned for room state
- Offline waypoints queued for sync on reconnect

## Migration Plan

1. Add WebSocket sync server for real-time room state
2. Add Automerge CRDT for persistent rooms
3. Add EncryptID auth to WebSocket upgrade
4. Import `RMAPS_PERMISSIONS` from SDK
5. Add `resolveSpaceRole()` + `hasCapability()` at WS level
6. Keep per-participant privacy settings as user-controlled override
