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Let users toggle nearby-breweries distances between km and mi

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Aaron Po
2026-08-27 00:46:54 -04:00
parent 365ee9828e
commit 3457646558
3 changed files with 83 additions and 50 deletions
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11
web/frontend/app/features/breweries/utils/distance.ts
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@@ -19,7 +19,12 @@ export const haversineDistanceMetres = (a: Coordinates, b: Coordinates): number
return 2 * EARTH_RADIUS_METRES * Math.asin(Math.sqrt(h));
};
export const formatDistance = (metres: number): string => {
const km = metres / 1000;
return km < 10 ? `${km.toFixed(1)} km` : `${Math.round(km)} km`;
export type DistanceUnit = 'km' | 'mi';
const METRES_PER_MILE = 1609.344;
export const formatDistance = (metres: number, unit: DistanceUnit = 'km'): string => {
const value = unit === 'mi' ? metres / METRES_PER_MILE : metres / 1000;
const rounded = value < 10 ? value.toFixed(1) : String(Math.round(value));
return `${rounded} ${unit}`;
};