smi2vtt/dist/smi2vtt.js

Convert .smi to .vtt

'use strict';

var parse = require('./parse.js');

var fs = require('fs');
var jschardet = require('jschardet');
var iconv = require('iconv-lite');

/**
 * read file and convert UTF-8
 * @param  {String}   file
 * @return {Promise}
 */
function readFile(file) {
  return new Promise(function (resolve, reject) {
    fs.readFile(file, function (err, data) {
      if (err) reject(err);else {
        var _jschardet$detect = jschardet.detect(data),
            encoding = _jschardet$detect.encoding;

        var encodedData = encoding != 'utf-8' ? iconv.decode(data, encoding) : data;

        resolve(encodedData);
      }
    });
  });
}

/**
 * convert smi(file) to vtt(string)
 * @param  {String} smiFile
 * @param  {Promise}
 */
function smi2vtt(smiFile) {
  return new Promise(function (resolve, reject) {
    readFile(smiFile).then(function (data) {
      resolve(parse(data));
    }).catch(function (err) {
      return reject(err);
    });
  });
}

module.exports = smi2vtt;