@fulldevlabs/fullui/src/utils/transform/transformCasing.ts

A component library built for Astro

import { flatten, unflatten } from 'flat'
import { camel, isObject } from 'radash'
import { isArray, isString, mapKeys } from 'remeda'

export const transformCasing = (data: any) => {
  if (!isObject(data) && !isArray(data)) return data

  const flat: any = flatten(data)
  const transformedData = mapKeys(flat, (key) => {
    if (!isString(key)) return key
    const parts = (key as string).split('.')
    const result = parts.map((part) => {
      const leadingUnderscores = part.match(/^_+/) || ['']
      const withoutLeadingUnderscores = part.replace(/^_+/, '')
      const camelCased = camel(withoutLeadingUnderscores)
      const result = leadingUnderscores + camelCased
      return result
    })
    return result.join('.')
  })

  const nested = unflatten(transformedData)
  return nested
}