askirmas / react-classnaming

import { ClassHash, ClassNamesProperty, CssModule } from "./defs";

import {resolver} from "./core"

const {keys: $keys} = Object

export default classNamesMap

function classNamesMap<

  Target extends ClassNamesProperty<CssModule>,

  Source extends ClassNamesProperty<CssModule>,

>(map: {

  [T in keyof Target["classnames"]]:

    {[S in keyof Source["classnames"]]?: ClassHash}

  }

): {classnames: {[T in keyof Target["classnames"]]: string}} {

  const keys = $keys(map) as (keyof Target["classnames"])[]

  , classnames = {} as {[T in keyof Target["classnames"]]: string}

  for (let i = keys.length; i--;) {

    const key = keys[i]

    classnames[key] = resolver(undefined, map[key]).join(" ")

  }

  return {classnames}

}