/** Identity and shared tuning for the provider-neutral Street Level layer. */
export const STREET_LEVEL_LAYER_ID = 'street-level';

/** Pick id of the viewer position marker; the core owns it, not a provider. */
export const POSITION_PICK_ID = 'sl:pos';

/** One colour per imagery source: chip, coverage lines, points, cones and legend. */
export const PROVIDER_COLORS = Object.freeze({
  mapillary: '#05cb63',
  google: '#4285f4',
});

/** Colours every provider shares: the selection highlight and the marker. */
export const COLORS = Object.freeze({
  selected: '#00d4ff',
  position: '#ffb300',
});

/** Panorama modes the imagery filter understands. */
export const PANO_MODES = Object.freeze(['all', 'pano', 'flat']);

/** Longest "captured since" window the filter accepts, in days (~100 years). */
export const MAX_SINCE_DAYS = 36_500;

/** Filter every provider starts with: all imagery, any date. */
export const FILTER_DEFAULT = Object.freeze({ pano: 'all', sinceDays: 0 });

/** Nearest-image search radius in metres (Mapillary's graph API caps it at 50 m). */
export const NEAREST_RADIUS_M = 50;

/**
 * The only map stack camera follow is offered on: elsewhere a camera at eye
 * height looks at a smeared texture.
 */
export const FOLLOW_MAP_STACK_ID = 'photoreal';

/** Eye height above the sampled ground when the globe camera follows the viewer. */
export const FOLLOW_EYE_HEIGHT_M = 2.4;

/** Above this, a ground click is a misclick, not a street. */
export const GROUND_CLICK_MAX_HEIGHT_M = 3_000;

export const AIM_AT_GROUND_MESSAGE =
  'Aim the middle of the view at a street to look for imagery there';