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authorNoah Loomans <noahloomans@gmail.com>2017-09-08 21:44:45 +0200
committerNoah Loomans <noahloomans@gmail.com>2017-09-08 21:44:45 +0200
commit5aac32f72eca8c66e879583ce653d07bb3c7370f (patch)
treee529c41a917ce3f7f13183febc3ce666a6f627d4 /lib/getMeetingpointData.js
parentb4a63e917d8e07f0b1422f5f4e145e46e223386e (diff)
parentc8d6527d802a64e19ef5e7141a9c817517d5a99f (diff)
Merge branch 'master' into beta
Diffstat (limited to 'lib/getMeetingpointData.js')
-rw-r--r--lib/getMeetingpointData.js83
1 files changed, 83 insertions, 0 deletions
diff --git a/lib/getMeetingpointData.js b/lib/getMeetingpointData.js
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+++ b/lib/getMeetingpointData.js
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+'use strict'
+
+const Promise = require('bluebird')
+const cheerio = require('cheerio')
+const _ = require('lodash')
+const request = Promise.promisify(require('request'))
+
+let meetingpointData
+let lastUpdate
+
+function getUsers (page) {
+ const script = page('script').eq(1).text()
+
+ const regexs = [/var classes = \[(.+)\];/, /var teachers = \[(.+)\];/, /var rooms = \[(.+)\];/, /var students = \[(.+)\];/]
+ const items = regexs.map(function (regex) {
+ return script.match(regex)[1].split(',').map(function (item) {
+ return item.replace(/"/g, '')
+ })
+ })
+
+ return []
+ .concat(items[0].map(function (item, index) {
+ return {
+ type: 'c',
+ value: item,
+ index: index
+ }
+ }))
+ .concat(items[1].map(function (item, index) {
+ return {
+ type: 't',
+ value: item,
+ index: index
+ }
+ }))
+ .concat(items[2].map(function (item, index) {
+ return {
+ type: 'r',
+ value: item,
+ index: index
+ }
+ }))
+ .concat(items[3].map(function (item, index) {
+ return {
+ type: 's',
+ value: item,
+ index: index
+ }
+ }))
+}
+
+function getValidWeekNumbers(page) {
+ const weekSelector = page('select[name="week"]');
+ const weekNumbers = _.map(weekSelector.children(), option => parseInt(option.attribs.value))
+
+ return weekNumbers;
+}
+
+function requestData() {
+ lastUpdate = new Date()
+
+ return request(`http://www.meetingpointmco.nl/Roosters-AL/doc/dagroosters/frames/navbar.htm`, { timeout: 5000 }).then((response) => {
+ const page = cheerio.load(response.body)
+ const users = getUsers(page)
+ const validWeekNumbers = getValidWeekNumbers(page)
+
+ meetingpointData = { users, validWeekNumbers }
+
+ return meetingpointData
+ })
+}
+
+function getMeetingpointData () {
+ if (lastUpdate == null || new Date() - lastUpdate > 10 * 60 * 1000) { // 10 minutes
+ return requestData()
+ } else if (!meetingpointData) {
+ return Promise.reject()
+ } else {
+ return Promise.resolve(meetingpointData)
+ }
+}
+
+module.exports = getMeetingpointData