1 files changed, 78 insertions, 0 deletions
diff --git a/src/client/javascript/schedule.js b/src/client/javascript/schedule.js
new file mode 100644
index 0000000..38ad66d
--- /dev/null
+++ b/src/client/javascript/schedule.js
@@ -0,0 +1,78 @@
+/* global VALID_WEEK_NUMBERS */
+
+const EventEmitter = require('events')
+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._getURLOfUser = function (week, user) {
+  return `/get/${user.type}/${user.value}?week=${week}`
+}
+
+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 if (VALID_WEEK_NUMBERS.indexOf(week) === -1) {
+    self._handleError({ target: { status: 404 } });
+    return
+  } else {
+    const url = self._getURLOfUser(week, selectedUser)
+
+    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