camelize.ts

export type CamelizeString<ObjectProperty extends string> =
  ObjectProperty extends `${infer F}_${infer R}`
  ? `${F}${Capitalize<CamelizeString<R>>}`
  : ObjectProperty;

export type Camelize<GenericObject> = {
  [ObjectProperty in keyof GenericObject as CamelizeString<ObjectProperty & string>]:
    GenericObject[ObjectProperty] extends Array<infer ArrayItem>
    ? ArrayItem extends Record<string, unknown>
      ? Array<Camelize<ArrayItem>>
      : GenericObject[ObjectProperty]
    : GenericObject[ObjectProperty] extends Record<string, unknown>
      ? Camelize<GenericObject[ObjectProperty]>
      : GenericObject[ObjectProperty];
};