index.js

#!/usr/bin/env node

const chalk = require('chalk');
const program = require('commander');
const request = require('request');

const consoleWidth = () => {
  return parseInt(process.stdout.columns);
};

const printResults = (resList) => {
  resList.forEach((result) => {
    if (typeof (result.definition) !== undefined) {
      console.log(chalk.bold.cyan('Word: ') + result.word);
      console.log(chalk.bold.cyan('Definition: ') + result.definition);
      console.log(chalk.bold.cyan('Score: ') + (result.thumbs_up - result.thumbs_down));
      console.log(chalk.bold.green('Ayys: ') + result.thumbs_up + ' | ' + chalk.bold.red('Nayys: ') + result.thumbs_down);
      console.log('='.repeat(consoleWidth()));
    }
  });
};

const getDefinition = (word) => {
  const options = {
    method: 'GET',
    url: 'http://api.urbandictionary.com/v0/define',
    qs: {
      term: word
    },
    headers: {
      'Cache-Control': 'no-cache',
      Accept: 'application/json'
    }
  };

  request(options, function (err, res, body) {
    if (err) throw new Error(err);
    var trimRes;
    const results = JSON.parse(body).list;
    const resultsToDisplay = 3;

    console.log('='.repeat(consoleWidth()));

    if (results.length === 0) {
      console.log(chalk.red('No results were found, please try another phrase'));
    } else {
      if (results.length > resultsToDisplay) {
        trimRes = results.slice(0, resultsToDisplay);
      } else {
        trimRes = results;
      }

      printResults(trimRes);
    }
  });
};

program
  .version('0.4.3')
  .option('-R, --random', 'Display top results for a random word (up to 3), cannot be used when passing a phrase')
  .arguments('<phrase>')
  .action((slng) => {
    getDefinition(slng);
  });

program
  .on('--help', function () {
    console.log('');
    console.log('  Examples:');
    console.log('    $ slng gucci');
    console.log('    $ slng \'square up\'');
    console.log('');
  });

program.parse(process.argv);

if (!process.argv.slice(2).length) {
  program.outputHelp();
}

if(program.random && process.argv.slice(2).length === 1) {
  const options = {
    method: 'GET',
    url: 'http://api.urbandictionary.com/v0/random',
    headers: {
      'Cache-Control': 'no-cache',
      Accept: 'application/json'
    }
  };

  request(options, function (err, res, body) {
    const results = JSON.parse(body).list;
    const randomWord = results[0].word;

    if (err) throw new Error(err);

    getDefinition(randomWord);
  });
}