const csv2json = require('csvtojson') const fs = require('mz/fs') const { Parser, transforms: { flatten }, formatters: { stringQuoteOnlyIfNecessary } } = require('json2csv') const csv2jsonOptions = { checkColumn: true, trim: true, colParser: { countries: listParser, languages: listParser, categories: listParser, broadcast_area: listParser, is_nsfw: boolParser, logo: nullable, subdivision: nullable, city: nullable, network: nullable } } const json2csv = new Parser({ transforms: [flattenArray], formatters: { string: stringQuoteOnlyIfNecessary() } }) const csv = {} csv.load = async function (filepath) { return csv2json(csv2jsonOptions).fromFile(filepath) } csv.save = async function (filepath, data) { const string = json2csv.parse(data) return fs.writeFile(filepath, string) } csv.saveSync = function (filepath, data) { const string = json2csv.parse(data) return fs.writeFileSync(filepath, string) } module.exports = csv function flattenArray(item) { for (let prop in item) { const value = item[prop] item[prop] = Array.isArray(value) ? value.join(';') : value } return item } function listParser(value) { return value.split(';').filter(i => i) } function boolParser(value) { return value === 'true' } function nullable(value) { return value === '' ? null : value }