/** Env + coords only — no mapbox import for lighter non-map pages */

export function getPublicMapApiKey(): string {
  return (process.env.NEXT_PUBLIC_MAP_API_KEY || '').trim()
}

/** Mapbox / Map.ir: [lng, lat]; form uses { lat, lng } */

export function toMapirLngLat(lat: number, lng: number): [number, number] {
  return [lng, lat]
}

/** Backend geo fields: max 6 decimal places */
export const GEO_COORDINATE_DECIMALS = 6

export function roundGeoCoordinate(value: number, decimals: number = GEO_COORDINATE_DECIMALS): number {
  if (!Number.isFinite(value)) return value
  const factor = 10 ** decimals

  return Math.round(value * factor) / factor
}