/**
 *****************************************
 * Created by edonet@163.com
 * Created on 2021-03-21 14:28:09
 *****************************************
 */
'use strict';


/**
 *****************************************
 * 加载依赖
 *****************************************
 */
import { Extend } from './d';


/**
 *****************************************
 * 代理对象
 *****************************************
 */
type Proto = Record<string, unknown>;
type Proxy<T, P> = Extend<P, T>;


/**
 *****************************************
 * 生成代码对象
 *****************************************
 */
function proxy<T>(target: T): T;
function proxy<T, P extends Proto>(target: T, proto?: P): Proxy<T, P>
function proxy<T, P extends Proto>(target: T, proto?: P): Proxy<T, P> {
    const ob = Object.create(typeof proto !== 'undefined' ? proto : target as Proto);

    // 不存在属性
    if (!target || typeof target !== 'object') {
        return ob;
    }

    // 解析属性
    Object.keys(target).forEach(key => {
        Object.defineProperty(ob, key, {
            enumerable: true,
            configurable: true,
            set(value: unknown) {
                target[key as keyof T] = value as T[keyof T];
            },
            get() {
                return target[key as keyof T];
            },
        });
    });

    // 返回结果
    return ob;
}


/**
 *****************************************
 * 抛出接口
 *****************************************
 */
export { proxy };