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author | Noah Loomans <noahloomans@gmail.com> | 2017-09-08 21:44:45 +0200 |
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committer | Noah Loomans <noahloomans@gmail.com> | 2017-09-08 21:44:45 +0200 |
commit | 5aac32f72eca8c66e879583ce653d07bb3c7370f (patch) | |
tree | e529c41a917ce3f7f13183febc3ce666a6f627d4 /lib/getMeetingpointData.js | |
parent | b4a63e917d8e07f0b1422f5f4e145e46e223386e (diff) | |
parent | c8d6527d802a64e19ef5e7141a9c817517d5a99f (diff) |
Merge branch 'master' into beta
Diffstat (limited to 'lib/getMeetingpointData.js')
-rw-r--r-- | lib/getMeetingpointData.js | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/lib/getMeetingpointData.js b/lib/getMeetingpointData.js new file mode 100644 index 0000000..94cf36c --- /dev/null +++ b/lib/getMeetingpointData.js @@ -0,0 +1,83 @@ +'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 |