askirmas / react-classnaming

import type { ClassNames, ReactRelated, ClassNamesMap } from "./defs"

type GetClassNames<Source extends string | ReactRelated = string> = "classNames" extends keyof ClassNames<Source>

? ClassNames<Source>["classNames"]

: never

export default classNamesCheck

/**

 * Propagates argument's shape.

 * For checking equality add `typeof css_module` as second generic parameter

*/

function classNamesCheck<T extends ClassNamesMap<string>>(classNames: T): T

//TODO On assignment

/** Checks equality

 * @example classNamesCheck<typeof App, typeof require("./module.css")>(module?) // Will return notation as array of not used classes

 * @todo On parameter:

 * @example classNamesCheck<typeof App>(require("./module.css"))

*/

function classNamesCheck<

  K extends string | ReactRelated,

  T extends GetClassNames<K> = GetClassNames<K>

>(classNames?: T): string extends keyof T ? GetClassNames<K>

: keyof T extends keyof GetClassNames<K> ? T

// For Verbosing redundant keys

: Exclude<keyof T, keyof GetClassNames<K>>[]

function classNamesCheck(classNames = EMPTY_OBJECT) {

  return classNames

}