/**
 * [[include:core/decorators/cache/README.md]]
 * @packageDocumentation
 * @module decorators/cache
 */

import { error } from 'jodit/core/helpers';
import type { IDictionary } from 'jodit/types';

export interface CachePropertyDescriptor<T, R> extends PropertyDescriptor {
	get?: (this: T) => R;
}

export function cache<T, R>(
	target: object,
	name: PropertyKey,
	descriptor: CachePropertyDescriptor<T, R>
): void {
	const getter = descriptor.get;

	if (!getter) {
		throw error('Getter property descriptor expected');
	}

	descriptor.get = function (this: T): R {
		const value = getter.call(this);

		if (value && (value as IDictionary).noCache === true) {
			return value;
		}

		Object.defineProperty(this, name, {
			configurable: descriptor.configurable,
			enumerable: descriptor.enumerable,
			writable: false,
			value
		});

		return value;
	};
}