wet-tool/src/core/translate.js

wet控制台快速翻译

const https = require("https");
const URL = require("url").URL;

const qs = require("querystring");
const md5 = require("js-md5");
const { salt, appid, api, secret } = require("../lib/index.js");

const url = new URL(api);
let client = null;

module.exports = function translate(words = [], dest) {
  // 处理参数和url
  let q = words.join("\n");

  const sign = md5(`${appid}${q}${salt}${secret}`);

  const query = qs.stringify({
    q,
    salt,
    appid,
    sign,
    from: "auto",
    to: dest || "auto" /* 默认 中译英 英译中 */,
  });

  /* 发送网络请求 */
  _translte(query);
};

function _translte(query) {
  url.search = query;
  client = https.get(url.toString(), handle); /* 提供的get不需要手动关闭即end */
  // console.log(url.toString());
  client.on("error", handleErrorForNetwork)
}

function handle(Incoming) {
  let res = "";

  Incoming.on("data", (data) => (res += data.toString()));

  Incoming.on("close", () => {
    res = JSON.parse(res);
    // console.log(res)
    const { error_code, trans_result, from, to } = res;

    error_code ? handleErrorForNative() : handleResult(trans_result, from, to);

    /* 销毁 ClientRequest */
    client = null;
  });
}

/* console.log中的样式不允许使用模板字符串 */
const handleError = (err) => () => {
  console.warn("\033[41;30m WARN：" + err + "\033[0m")
  client = null
}

const handleErrorForNetwork = handleError("网络请求错误!");
const handleErrorForNative = handleError("远程翻译错误啦~");

function handleResult(trans_result, from, to) {
  const [origin, translation] = trans_result.reduce(
    (words, word) => {
      words[0] += " " + word.src;
      words[1] += " " + word.dst;
      return words;
    },
    ["", ""]
  );
  const o = "\x1B[43;30m 原文 " + "\x1B[40;33m " + origin;
  const r =
    "\033[42;30m " + from + " To " + to + " " + "\033[40;32m " + translation;
  console.log(o + "\033[0m");
  console.log(r + "\033[0m");
}