87 lines
2.0 KiB
JavaScript
87 lines
2.0 KiB
JavaScript
const cheerio = require('cheerio')
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const dayjs = require('dayjs')
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const utc = require('dayjs/plugin/utc')
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const { parseDates } = require('../parser-utils')
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dayjs.extend(utc)
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const parseEventData = (eventData) => {
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const startDate = eventData.startDate ?
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dayjs(eventData.startDate) :
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dayjs.utc(new Date())
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const endDate = eventData.endDate && dayjs.utc(eventData.endDate)
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const { start, duration } = parseDates(startDate, endDate)
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const { location } = eventData || {}
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const { address } = location || {}
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const locationName = location ? location.name : ''
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const addressStr = address ? [
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address.streetAddress || '',
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address.addressLocality || '',
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address.postalCode || '',
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address.addressCountry || '',
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].join(' ') : ''
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const locationStr = [
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locationName,
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addressStr,
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].join(' ')
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const cleanedLocationStr = locationStr.trim().replace(/\r?\n|\r/g, ' ')
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const title = eventData.name || ''
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const url = eventData.url || ''
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const description = eventData.description || ''
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return {
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start,
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duration,
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location: cleanedLocationStr,
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title,
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url,
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description,
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}
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}
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const parseUsingLDJSONData = (html, { logger }) => {
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if (logger) {
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logger.log({
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message: 'Parsing using LDJSON parser',
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level: 'info',
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service: 'parser',
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})
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}
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// NOTE: Mobile web should have serialized
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// event info in one of the script tags
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const $ = cheerio.load(html)
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const $scripts = $('head script[type="application/ld+json"]')
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const rawData = $scripts.toArray().reduce((data, node) => {
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const firstNode = node.children[0]
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if (!firstNode || !firstNode.data) {
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return data
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}
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// NOTE: Handle prefix
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if (firstNode.data.startsWith('//<![CDATA')) {
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return firstNode.data.slice(12, -5)
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}
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if (firstNode.data) {
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return firstNode.data.trim()
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}
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return data
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}, null)
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if (!rawData) {
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return null
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}
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const eventData = JSON.parse(rawData)
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const data = parseEventData(eventData)
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return data
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}
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module.exports = parseUsingLDJSONData
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