thi-ng/umbrella

import type { IObjectOf, Nullable } from "@thi.ng/api";
import { isPlainObject } from "@thi.ng/checks/is-plain-object";
import { meldObjWith, mergeObjWith } from "./merge-with.js";

export const mergeDeepObj = (
    dest: IObjectOf<any>,
    ...objects: Nullable<IObjectOf<any>>[]
): any =>
    mergeObjWith(
        (a, b) =>
            isPlainObject(a) && isPlainObject(b) ? mergeDeepObj(a, b) : b,
        dest,
        ...objects
    );

export const meldDeepObj = (
    dest: IObjectOf<any>,
    ...objects: Nullable<IObjectOf<any>>[]
): any =>
    meldObjWith(
        (a, b) =>
            isPlainObject(a) && isPlainObject(b) ? meldDeepObj(a, b) : b,
        dest,
        ...objects
    );