import { readFileSync, writeFileSync } from 'fs';
import { resolve } from 'path';

export interface PackageJSON {
  name: string;
  version: string;
  description: string;
  publishConfig: {
    registry: string;
  };
  scripts: {
    [key: string]: string;
  };
}

export interface OptionsJSON {
  auto: boolean;
  global: boolean;
  [key: string]: unknown;
}

export interface RegistryJSON {
  registry: string;
  _auth: string;
  email: string;
  packageRegistry: string;
}

export interface NrcJSON {
  [key: string]: RegistryJSON;
}

export type NpmJson = RegistryJSON | NrcJSON;

/**
 * 获取用户目录
 */
export const USER_HOME = process.env.HOME || process.env.USERPROFILE;

/**
 * 读取指定路径下 json 文件
 * @param filename json 文件的路径
 */
export function readJsonFile<T>(filename: string): T {
  return JSON.parse(readFileSync(filename, { encoding: 'utf-8', flag: 'r' }));
}

/**
 * 覆写指定路径下的 json 文件
 * @param filename json 文件的路径
 * @param content  json 内容
 */

export function writeJsonFile<T>(filename: string, content: T): void {
  writeFileSync(filename, JSON.stringify(content, null, 2));
}

/**
 * 获取项目绝对路径
 * @param projectName 项目名
 * @param projectPath 项目路径 默认 process.cwd()
 */
export function getProjectPath(
  projectName: string,
  projectPath?: string,
): string {
  const path = projectPath || process.cwd();
  return resolve(path, projectName);
}

/**
 * 打印信息
 * @param msg 信息
 */
export function printMsg(msg: string): void {
  console.log(msg);
}