Create csv.js

scripts/core/csv.js

@@ -0,0 +1,62 @@
+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
+	}
+}
+
+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)
+}
+
+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
+}