index.js

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

/* 
 * vid2tweet  utility
 * processes vimeo data into tweets
 *
 * relies on the following:
 * - https://www.npmjs.com/package/commander
 *
 * 2018-12
 * mamund
 */

var program = require('commander');
var fs = require('fs');

var settings = {};
settings.template = "";
settings.list = "";
settings.tweetList = [];
settings.tweetTemplate = "tweet-template.txt";
settings.writeFile = "tweet-list.txt";

// top-level routine
program
  .arguments('<file>')
  .action(function(file){work(file)})
  .parse(process.argv);

// the work  
function work(file) {
  if(readFile(settings.tweetTemplate, "template")) {
    if(readFile(file, "list")) {
      genTweets();
    }
  }
}

// generate tweets
function genTweets() {
  var list; 

  list = parseList();
  list.forEach(function(item) {
    settings.tweetList.push(makeTweet(item));
  });  
  writeFile(settings.writeFile,settings.tweetList);
}


// make a tweet
function makeTweet(item) {
  var output = "";

  output = settings.template;
  output = output.replace("{speaker}", item.title);
  output = output.replace("{title}", item.speaker);
  output = output.replace("{link}", item.link);
  output = output.replace("{handle}", item.handle);

  return output;
}

// parse the input file
function parseList() {
  var rtn = [];
  var items = [];
  var tweet = {};

  items = settings.list.split("\n");
  items.forEach(function(item) {
    if(item.length!==0) {
      tweet = {};
      tweet.title = item.split("::")[0];
      tweet.speaker = item.split("::")[1];
      tweet.link = item.split("::")[2];
      tweet.handle = item.split("::")[3];
      rtn.push(tweet);
    }
  });

  return rtn;
}

// write string file
function writeFile(name,list) {
  var output = "";

  list.forEach(function(item) {
    output = output + item + "\n";
  });
  fs.writeFileSync(name,output);

  return true;
}

// read string file
function readFile(file, name) {
  var rtn = "";

  if(fs.existsSync(file)) {
    settings[name] = fs.readFileSync(file,'utf8');
    rtn = true;
  } 
  else {
    console.log("File not found or invalid: "+file);
    rtn = false;
  }  

  return rtn;  
}

// EOF