trails/openspec/specs/osm-tile-overlays/spec.md
Ullrich Schäfer bbb729ffdd
Fix OpenSpec validation failures on high-severity specs
- road-type-coloring: add proper ## Purpose/## Requirements structure (redirect file)
- planner-journal-handoff: add inline #### Scenario: blocks to each requirement; add SHALL to JWT token requirement
- osm-tile-overlays: add SHALL keyword to profile-aware requirement body
- shared-packages: add #### Scenario: blocks to ui, api, db, jobs, sentry-config requirements

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-24 11:20:14 +02:00

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Markdown

## Purpose
Tile-based map overlays (hillshading, Waymarked Trails cycling/hiking/MTB routes) with support for multiple simultaneous overlays, proper attribution, and profile-aware auto-enabling.
## Requirements
### Requirement: Hillshading overlay
The Planner map SHALL offer a hillshading tile overlay that visualizes terrain relief.
#### Scenario: Enable hillshading
- **WHEN** a user toggles "Hillshading" in the layer switcher
- **THEN** semi-transparent terrain shading tiles are rendered on top of the base layer
#### Scenario: Hillshading with any base layer
- **WHEN** hillshading is enabled and the user switches base layers
- **THEN** hillshading remains visible on top of the new base layer
### Requirement: Waymarked Trails cycling overlay
The Planner map SHALL offer a Waymarked Trails cycling overlay showing official cycle route networks.
#### Scenario: Enable cycling routes overlay
- **WHEN** a user toggles "Cycling Routes" in the layer switcher
- **THEN** official cycling routes (EuroVelo, national networks) are rendered as colored lines on the map from Waymarked Trails tiles
#### Scenario: Cycling overlay at different zoom levels
- **WHEN** cycling routes overlay is enabled
- **THEN** international routes are visible at low zoom and local routes appear at higher zoom levels
### Requirement: Waymarked Trails hiking overlay
The Planner map SHALL offer a Waymarked Trails hiking overlay showing official hiking trail networks.
#### Scenario: Enable hiking routes overlay
- **WHEN** a user toggles "Hiking Routes" in the layer switcher
- **THEN** official hiking trails (GR routes, national trails) are rendered as colored lines on the map
### Requirement: Waymarked Trails MTB overlay
The Planner map SHALL offer a Waymarked Trails MTB overlay showing official mountain bike trail networks.
#### Scenario: Enable MTB routes overlay
- **WHEN** a user toggles "MTB Routes" in the layer switcher
- **THEN** official MTB trails are rendered as colored lines on the map
### Requirement: Multiple simultaneous overlays
The Planner map SHALL support enabling multiple tile overlays at the same time.
#### Scenario: Hillshading plus cycling routes
- **WHEN** a user enables both "Hillshading" and "Cycling Routes"
- **THEN** both overlays are visible simultaneously, with cycling routes rendered above hillshading
### Requirement: Overlay tile attribution
Each tile overlay SHALL display proper attribution when enabled.
#### Scenario: Attribution updates
- **WHEN** an overlay is toggled on
- **THEN** its attribution text is added to the map attribution control
- **WHEN** the overlay is toggled off
- **THEN** its attribution text is removed
### Requirement: Profile-aware overlay suggestions (not yet implemented)
The Planner SHALL auto-enable relevant tile overlays when the routing profile changes. This is not yet implemented; `profileOverlayDefaults` is exported from `@trails-cool/map-core` but not currently wired in the Planner app. The scenarios below describe the intended behaviour once wired.
#### Scenario: Switch to cycling profile
- **WHEN** the routing profile is changed to a cycling variant
- **THEN** the Waymarked Trails cycling overlay is automatically enabled
#### Scenario: Switch to hiking profile
- **WHEN** the routing profile is changed to a hiking variant
- **THEN** the Waymarked Trails hiking overlay is automatically enabled
#### Scenario: User can disable auto-enabled overlays
- **WHEN** an overlay was auto-enabled by a profile change
- **THEN** the user can manually disable it and it stays disabled until the next profile change