effect-record-rename-keys.ts

import { Record } from "effect";

function renameKeys<T extends Record<string | symbol, unknown>, M extends Record<string, string>>(
  input: T,
  map: M,
): { [Property in keyof T as Property extends keyof M ? M[Property] : Property]: T[Property] } {
  return Record.mapKeys(input, (key) => (key in map ? map[key as keyof M] : key)) as any;
}

function renameKey<
  T extends Record<string | symbol, unknown>,
  K extends keyof T,
  K2 extends string,
>(input: T, key: K, newKey: K2) {
  return renameKeys(input, { [key]: newKey } as Record<K, K2>);
}