buddyworks-cli/src/output.js

Command line tool for managing pipelines in Buddy Works

const chalk = require('chalk');
const cliui = require('cliui');
const readline = require('readline');

function Output() {
  /**
   * @param {string} txt
   */
  const outputText = (txt) => {
    const ui = cliui({
      width: 100,
    });
    ui.div(txt);
    console.log(ui.toString());
  };
  /**
   * @param {object} obj
   */
  const outputJson = obj => console.log(JSON.stringify(obj, null, 2));
  /**
   * @param {string} txt
   */
  const errorText = txt => outputText(chalk.red(txt));
  /**
   * @param {string} txt
   */
  const errorJson = txt => outputJson({ success: false, message: txt });
  /**
   * @param {string} txt
   */
  const okText = txt => outputText(chalk.green(txt));
  /**
   * @param {string} txt
   */
  const okJson = txt => outputJson({ success: true, message: txt });
  /**
   * @param {Array} arr
   */
  const tableText = (arr) => {
    let txt = '';
    for (let row = 0; row < arr.length; row += 1) {
      if (row > 0) txt += '\n';
      for (let column = 0; column < arr[row].length; column += 1) {
        if (column > 0) txt += ' \t';
        if (typeof (arr[row][column]) !== 'undefined' && arr[row][column] !== null) txt += arr[row][column];
        else txt += '';
      }
    }
    outputText(txt);
  };
  /**
   * @param {Array} arr
   */
  const tableJson = arr => outputJson(arr);
  /**
   * @param {Object} obj
   */
  const propsJson = obj => outputJson(obj);
  /**
   * @param {Object} obj
   * @param {Boolean} [useRealKey]
   */
  const propsText = (obj, useRealKey) => {
    let txt = 'KEY\tVALUE\n';
    let was = false;
    Object.keys(obj).forEach((key) => {
      if (was) txt += '\n';
      const name = !useRealKey ? key.split('_').map(n => n.charAt(0).toUpperCase() + n.slice(1)).join(' ') : key;
      let val;
      if (typeof (obj[key]) !== 'undefined' && obj[key] !== null) val = obj[key];
      else val = '';
      txt += `${name} \t${val}`;
      was = true;
    });
    outputText(txt);
  };
  /**
   * @param {boolean} json
   * @param {string} txt
   */
  this.error = (json, txt) => {
    if (json) errorJson(txt);
    else errorText(txt);
    process.exit(1);
  };
  /**
   * @param {boolean} json
   * @param {string} txt
   */
  this.ok = (json, txt) => {
    if (json) okJson(txt);
    else okText(txt);
  };
  /**
   * @param {boolean} json
   * @param {Array} arr
   */
  this.table = (json, arr) => {
    if (json) tableJson(arr);
    else tableText(arr);
  };
  /**
   * @param {boolean} json
   * @param {object} obj
   * @param {boolean} [useRealKey]
   */
  this.props = (json, obj, useRealKey) => {
    if (json) propsJson(obj);
    else propsText(obj, useRealKey);
  };
  /**
   * @param {function} done
   */
  this.askForMore = (done) => {
    const rl = readline.createInterface({
      input: process.stdin,
      output: process.stdout,
    });
    rl.question('(Hit enter for more)', () => {
      readline.moveCursor(rl, 0, -1);
      readline.clearLine(rl, 0);
      rl.write('\r');
      rl.close();
      done();
    });
  };
}

module.exports = new Output();