#! /usr/bin/env node

const decrypt = require('decrypt-dlc');
const fs      = require('fs');
const path    = require('path');
const program = require('commander');


program
  .version('1.0.0')
  .usage('[options] <file>')
  .option('-o, --output <file>', 'File to store decrypted urls in. (Default: urls.txt)', path.join(process.cwd(), 'urls.txt'))
  .parse(process.argv);


decrypt(program.args[0], (err, content) => {
  let urls = null;

  if (content.hasOwnProperty('success')) {
    urls = content.success.links.slice(1).join('\n');

    fs.writeFile(program.output, urls, (err) => {
      if (err) throw err;
      console.log(`Successfully stored urls in ${program.output}`);
    });
  }
});