const transliteration = require('transliteration') const iso6393 = require('@freearhey/iso-639-3') const categories = require('./categories') const regions = require('./regions') const utils = {} const intlDisplayNames = new Intl.DisplayNames(['en'], { style: 'narrow', type: 'region' }) utils.name2id = function (name) { return transliteration .transliterate(name) .replace(/\+/gi, 'Plus') .replace(/[^a-z\d]+/gi, '') } utils.code2flag = function (code) { code = code.toUpperCase() switch (code) { case 'UK': return '🇬🇧' case 'INT': return '🌍' case 'UNDEFINED': return '' default: return code.replace(/./g, char => String.fromCodePoint(char.charCodeAt(0) + 127397)) } } utils.region2codes = function (region) { region = region.toUpperCase() return regions[region] ? regions[region].codes : [] } utils.code2name = function (code) { try { code = code.toUpperCase() if (regions[code]) return regions[code].name if (code === 'US') return 'United States' if (code === 'INT') return 'International' return intlDisplayNames.of(code) } catch (e) { return null } } utils.language2code = function (name) { const lang = iso6393.find(l => l.name === name) return lang && lang.code ? lang.code : null } utils.sortBy = function (arr, fields) { return arr.sort((a, b) => { for (let field of fields) { let propA = a[field] ? a[field].toLowerCase() : '' let propB = b[field] ? b[field].toLowerCase() : '' if (propA === 'undefined') return 1 if (propB === 'undefined') return -1 if (propA === 'other') return 1 if (propB === 'other') return -1 if (propA < propB) return -1 if (propA > propB) return 1 } return 0 }) } utils.removeProtocol = function (string) { return string.replace(/(^\w+:|^)\/\//, '') } utils.filterPlaylists = function (arr, include = '', exclude = '') { if (include) { const included = include.split(',').map(filename => `channels/${filename}.m3u`) return arr.filter(i => included.indexOf(i.url) > -1) } if (exclude) { const excluded = exclude.split(',').map(filename => `channels/${filename}.m3u`) return arr.filter(i => excluded.indexOf(i.url) === -1) } return arr } module.exports = utils