import { DeeplyReadonly } from "./types";

/**
 * Recursively freezes an object by iterating over all properties and freezing them.
 * @param obj - The object to freeze.
 * @returns The frozen object.
 */
export const deepFreeze = <T>(value: T): DeeplyReadonly<T> => {
    if (
        value !== null &&
        (typeof value === 'object' || typeof value === 'function')
    ) {
        for (const key of Reflect.ownKeys(value)) {
        const descriptor = Reflect.getOwnPropertyDescriptor(value, key);

        if (descriptor && 'value' in descriptor) {
            deepFreeze(descriptor.value);
        }
        }

        Object.freeze(value);
    }

    return value;
}