77 lines
2.3 KiB
JavaScript
77 lines
2.3 KiB
JavaScript
const Promise = require('bluebird');
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const pump = require('pump');
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const papaparse = require('papaparse');
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const fs = require('fs-extra');
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module.exports = (path, mapping, defaultLabels = []) => {
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return new Promise(function (resolve, reject) {
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const csvFileStream = fs.createReadStream(path);
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const csvParserStream = papaparse.parse(papaparse.NODE_STREAM_INPUT, {
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header: true,
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transformHeader(_header) {
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let header = _header;
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if (mapping && Reflect.has(mapping, _header)) {
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header = mapping[_header];
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}
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if (header === 'subscribed_to_emails') {
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return 'subscribed';
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}
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return header;
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},
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transform(value, header) {
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if (header === 'labels') {
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if (value && typeof value === 'string') {
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return value.split(',').map(name => ({name}));
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}
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}
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if (header === 'subscribed') {
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return value.toLowerCase() !== 'false';
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}
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if (header === 'complimentary_plan') {
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return value.toLowerCase() === 'true';
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}
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if (value === '') {
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return null;
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}
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if (value === 'undefined') {
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return null;
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}
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if (value.toLowerCase() === 'false') {
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return false;
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}
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if (value.toLowerCase() === 'true') {
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return true;
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}
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return value;
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}
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});
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const rows = [];
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const parsedCSVStream = pump(csvFileStream, csvParserStream, (err) => {
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if (err) {
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return reject(err);
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}
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resolve(rows);
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});
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parsedCSVStream.on('data', (row) => {
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if (row.labels) {
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row.labels = row.labels.concat(defaultLabels);
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} else {
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row.labels = defaultLabels;
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}
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rows.push(row);
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});
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});
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};
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// @TODO do we need this???
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module.exports.readCSV = ({path, mapping, defaultLabels}) => module.exports(path, mapping, defaultLabels);
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