hacker-news-reader/lib/index.js

Hacker News Reader CLI

#! /usr/bin/env node
'use strict';

var _ora = require('ora');

var _ora2 = _interopRequireDefault(_ora);

var _url = require('url');

var _url2 = _interopRequireDefault(_url);

var _chalk = require('chalk');

var _chalk2 = _interopRequireDefault(_chalk);

var _vorpal = require('vorpal');

var _vorpal2 = _interopRequireDefault(_vorpal);

var _open = require('open');

var _open2 = _interopRequireDefault(_open);

var _api = require('./helper/api');

var _array = require('./helper/array');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var vorpal = (0, _vorpal2.default)();
var api = new _api.Api();

/**
 * Get Elapsed Time from posted News to now
 * @param {number} timestamp - Posted TimeStamp News
 * @return {string} Elapsed Time
 */
var getElapsedTime = function getElapsedTime(newsTimeStamp) {
  var NewsTime = new Date(newsTimeStamp * 1000).getTime();
  var currentDate = new Date().getTime();
  var diff = new Date(currentDate - NewsTime);
  /* eslint-disable max-len */
  return diff.getHours() > 0 ? diff.getHours() + ' hour(s) ago' : diff.getMinutes() + ' minute(s) ago';
  /* eslint-enable max-len */
};

/**
 * Display News in terminal
 * @param {object} Vorpal Object
 */
var displayNews = function displayNews(topNewsList, vp) {
  topNewsList.sort(_array.sortByOrder).forEach(function (item) {
    var ItemVM = {
      title: _chalk2.default.cyan(item.title),
      hostname: item.url ? _url2.default.parse(item.url).hostname : '',
      score: _chalk2.default.green(item.score + ' points'),
      by: _chalk2.default.gray('By ' + item.by),
      time: _chalk2.default.white(getElapsedTime(item.time)),
      descendants: _chalk2.default.white(item.descendants + ' comments')
    };
    vp.log(item.order + '. ' + ItemVM.title + ' (' + ItemVM.hostname + ')');
    vp.log('   ' + ItemVM.score + ' ' + ItemVM.by + ' ' + ItemVM.time + ' | ' + ItemVM.descendants);
  });
};

/**
 * Display News in terminal
 * @param {number} News order
 * @param {object} Vorpal Object
 */
var openNews = function openNews(order, vp) {
  if (typeof order === 'number') {
    var selectedNews = api.getTopNewsList.find(function (news) {
      return news.order === order;
    });
    if (selectedNews) {
      (0, _open2.default)(selectedNews.url);
    } else {
      vp.log(_chalk2.default.red('This news doesn\'t exist'));
    }
  } else {
    vp.log(_chalk2.default.red('Please enter a correct news number'));
  }
};

/**
 * Add 'news' command to Vorpal
 */
vorpal.command('news', 'Get top news').action(function act(args, callback) {
  var _this = this;

  var spinner = (0, _ora2.default)('Loading news');
  spinner.start();
  api.getTopNews().then(function (topNewsList) {
    spinner.stop();
    displayNews(topNewsList, _this);
    callback();
  }).catch(function () {
    return callback();
  });
});

/**
 * Add 'read' command to Vorpal
 * Usage : read <newsNumber>
 */
vorpal.command('read <news>', 'Exemple : read 4').action(function act(args, callback) {
  openNews(args.news, this);
  callback();
});

/**
 * Sets the prompt delimiter to say "hnr$" and show it
 */
vorpal.delimiter('hnr$').show();