timeWorked.js

// A simple Bookmarklet which calculates the time you have worked at a given day
// 1. Go to https://zeitplan.hcweb.ch
// 2. Log in and select the day you want to evaluate
// 3. Click on the Bookmarklet you created with the code below

// To pulish, first minify / uglify it before you throw it into the book
// marklet create:
// 1. Uglify https://skalman.github.io/UglifyJS-online/
// 2. Bokkmarkify: https://mrcoles.com/bookmarklet/

(() => {
let table = document.querySelector('.polypoint')
	.querySelectorAll('table')[1]

let stempel = Array.from(table.querySelectorAll('tr'))
	.filter((item => item.className.includes('polypoint-zebra')))
	.map(item => {
		temp = item.querySelectorAll('td')

		checkin = ((temp) => temp[0].innerHTML.includes('beginn'))(temp)

		let [hour, minutes] = temp[2].innerText.split(':')
			.map(item => parseInt(item))

		let time = new Date()
		time.setMinutes(minutes)
		time.setHours(hour)

		return {
			checkin,
			time
		}
	})

// Takes two dates and returns the milliseconds passed
// between them
function getTimeDiff(date1, date2) {
	let timeDiff = Math.abs(date2.getTime() - date1.getTime());
	return timeDiff
}

function TimeCounter() {
	milliseconds = 0;

	const millisecondsToHours = (1000 * 60 * 60)
	const milliscondsToMinutes = (1000 * 60)

	const getTime = () => milliseconds
	const addTime = (addedMillisconds) => milliseconds += addedMillisconds
	const getHours = () => Math.floor(milliseconds / millisecondsToHours)
	const getMinutes = () => {
		const millsecondsCountingToMinutes = milliseconds % millisecondsToHours
		return Math.floor(millsecondsCountingToMinutes / milliscondsToMinutes)
	}
	
	return {
		getTime,
		addTime,
		getHours,
		getMinutes
	}
}

timeWorked = TimeCounter()


for (let i = 0; i < stempel.length; i += 2) {
	// Hat es ein Austempel zu diesem Einstempel?
	if (stempel[i+1]) {
		// Ja, nehme die Stempel Zeit
		const diff = getTimeDiff(stempel[i].time, stempel[i+1].time)
		timeWorked.addTime(diff)
	} else {
		// Nein, nimm die aktuelle Zeit
		const diff = getTimeDiff(stempel[i].time, new Date())
		timeWorked.addTime(diff)
	}
}

const message = `You have worked ${timeWorked.getHours()} hours and ${timeWorked.getMinutes()} minutes`
console.log(message);
alert(message)
})()