medusa-store/packages/utils/src/common/map-object-to.ts

type RemapInputObject = Record<string, unknown[]>
type RemapConfig = { mapTo: string; valueFrom: string }
export type MapToConfig = {
  [key: string]: RemapConfig[]
}

/**
 * Create a new object with the keys remapped and the values picked from the original object based
 * on the map config
 *
 * @param object input object
 * @param mapTo configuration to map the output object
 * @param removeIfNotRemapped if true, the keys that are not remapped will be removed from the output object
 * @param pick if provided, only the keys in the array will be picked from the output object
 */
export function mapObjectTo<
  TResult = any,
  T extends RemapInputObject = RemapInputObject
>(
  object: T,
  mapTo: MapToConfig,
  {
    removeIfNotRemapped,
    pick,
  }: { removeIfNotRemapped?: boolean; pick?: string[] } = {}
): TResult {
  removeIfNotRemapped ??= false

  const newObject: Record<string, any> = {}

  for (const key in object) {
    const remapConfig = mapTo[key as string]!

    if (!remapConfig) {
      if (!removeIfNotRemapped) {
        newObject[key] = object[key]
      }
      continue
    }

    remapConfig.forEach((config) => {
      if (pick?.length && !pick.includes(config.mapTo)) {
        return
      }

      newObject[config.mapTo] = object[key]
        .map((obj: any) => obj[config.valueFrom])
        .filter(Boolean)
    })
  }

  return newObject as TResult
}