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const EventEmitter = require('events')
const leftPad = require('left-pad')
const search = require('./search')
const self = new EventEmitter()
self._nodes = {
schedule: document.querySelector('#schedule')
}
self._parseMeetingpointHTML = function (htmlStr) {
const html = document.createElement('html')
html.innerHTML = htmlStr
const centerNode = html.querySelector('center')
return centerNode
}
self._handleLoad = function (event) {
const request = event.target
if (request.status < 200 || request.status >= 400) {
self._handleError(event)
return
}
const document = self._parseMeetingpointHTML(request.response)
self._removeChilds()
self._nodes.schedule.appendChild(document)
self._nodes.schedule.classList.remove('error')
self.emit('load')
}
self._handleError = function (event) {
const request = event.target
let error
if (request.status === 404) {
error = 'Sorry, er is (nog) geen rooster voor deze week.'
} else {
error = 'Sorry, er is iets mis gegaan tijdens het laden van deze week.'
}
self._removeChilds()
self._nodes.schedule.textContent = error
self._nodes.schedule.classList.add('error')
self.emit('load')
}
self._getURLOfUsers = function (week, type, index) {
const id = index + 1
const meetingpointURL =
`Roosters-AL/doc/dagroosters/${leftPad(week, 2, '0')}/${type}/` +
`${type}${leftPad(id, 5, '0')}.htm`
return `/meetingpointProxy/${window.encodeURIComponent(meetingpointURL)}`
}
self._removeChilds = function () {
while (self._nodes.schedule.firstChild) {
self._nodes.schedule.removeChild(self._nodes.schedule.firstChild)
}
}
self.viewItem = function (week, selectedUser) {
if (selectedUser == null) {
self._removeChilds()
search.updateDom(selectedUser)
} else {
const url = self._getURLOfUsers(week, selectedUser.type,
selectedUser.index)
self._removeChilds()
const request = new window.XMLHttpRequest()
request.addEventListener('load', self._handleLoad)
request.addEventListener('error', self._handleError)
request.open('GET', url, true)
request.send()
search.updateDom(selectedUser)
}
}
module.exports = self
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