154 lines
3.7 KiB
JavaScript
154 lines
3.7 KiB
JavaScript
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const http = require('http')
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const ical = require('ical')
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const MONTH = 30 * 24 * 60 * 60 * 1000
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const Accumulator = {
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init: function (pastLimit, futureLimit) {
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this.entries = {}
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this.futureLimit = futureLimit
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this.pastLimit = pastLimit
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},
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add: function (time, element) {
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if (!this.entries.hasOwnProperty(time)) {
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this.entries[time] = []
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}
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this.entries[time].push(element)
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},
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offer: function (time, element) {
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if (time >= this.pastLimit && time < this.futureLimit) {
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this.add(time, element)
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}
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},
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offerEvent: function (event) {
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const content = document.createElement('p')
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const element = document.createElement('div')
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const formatDate = Intl.DateTimeFormat('fr', { dateStyle: 'long', timeStyle: 'short' }).format
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const header = document.createElement('h3')
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content.innerHTML = event.location
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header.textContent = formatDate(event.date) + ' | ' + event.summary
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element.className = 'event-entry news-entry'
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element.setAttribute('entry-time', event.date.getTime())
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element.appendChild(header)
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element.appendChild(content)
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this.offer(event.date.getTime(), element)
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},
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iterate: function (cb) {
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Object
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.keys(this.entries)
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.sort(function (a, b) { return a < b })
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.forEach(time => { cb(time, this.entries[time]) })
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}
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}
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function createLoader (target) {
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const message = document.createElement('p')
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const spinner = document.createElement('div')
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const wrapper = document.createElement('div')
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wrapper.className = 'loader-wrapper'
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message.innerHTML = 'Chargement du calendrier...'
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wrapper.appendChild(spinner)
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wrapper.appendChild(message)
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target.insertBefore(wrapper, target.firstChild)
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}
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function loadEvents (cb) {
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const events = []
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http.get({
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host: 'www.ti-nuage.fr',
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path: '/donnees/calendrier.php'
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}, function (response) {
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let str = ''
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response.on('data', (chunk) => {
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str += chunk
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})
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response.on('end', () => {
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/* Extract the events. */
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Object.values(ical.parseICS(str)).forEach(event => {
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if (event.type === 'VEVENT') {
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events.push({
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date: event.start,
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location: event.location,
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summary: event.summary
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})
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}
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})
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cb(events)
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})
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response.on('error', (e) => {
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console.error(`Error on calendar response: ${e.message}`)
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cb(events)
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})
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}).on('error', (e) => {
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console.error(`Could not fetch calendar: ${e.message}`)
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cb(events)
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})
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}
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module.exports = {
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fill: function (target) {
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const now = Date.now()
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const accumulator = Object.create(Accumulator)
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accumulator.init(now - 1 * MONTH, now + 3 * MONTH)
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createLoader(target)
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loadEvents(events => {
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events.forEach(event => { accumulator.offerEvent(event) })
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target.innerHTML = ''
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accumulator.iterate((time, elements) => {
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elements.forEach(e => {
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if (time < now) {
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e.className = e.className + ' event-elapsed'
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}
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target.appendChild(e)
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})
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})
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})
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},
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mergeWithNews: function (target) {
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const now = Date.now()
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const accumulator = Object.create(Accumulator)
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const blogElements = target.getElementsByClassName('blog-entry')
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accumulator.init(now, now + 1 * MONTH)
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createLoader(target)
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for (let i = 0; i < blogElements.length; ++i) {
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const item = blogElements.item(i)
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accumulator.add(item.getAttribute('entry-time'), item)
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}
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loadEvents(events => {
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events.forEach(event => { accumulator.offerEvent(event) })
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target.innerHTML = ''
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accumulator.iterate((time, elements) => {
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elements.forEach(e => { target.appendChild(e) })
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})
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})
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}
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}
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