Lyndon Jetten
fda2c306b5
FaC: Das alte Flag von Terminen, die in die Zeiterfassung übernommen worden sind, wird ebenfalls berücksichtigt.
26 lines
810 B
JavaScript
26 lines
810 B
JavaScript
module.exports = function(url = location.href.replace('http', 'ws')){
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const io = emitterify({ attempt: 0 })
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io.ready = io.once('connected')
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io.connect = connect(io, url)
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io.connect()
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io.send = data => io.ready.then(socket => socket.send(data))
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return io
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}
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const emitterify = require('utilise/emitterify')
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, { min, pow } = Math
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const connect = (io, url) => () => {
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const { WebSocket, location, setTimeout } = window
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, socket = new WebSocket(url)
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socket.onopen = d => io.emit('connected', socket)
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socket.onmessage = d => io.emit('recv', d.data)
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socket.onclose = d => {
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io.ready = io.once('connected')
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io.emit('disconnected')
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setTimeout(io.connect, backoff(++io.attempt))
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}
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}
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const backoff = (attempt, base = 100, cap = 10000) =>
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min(cap, base * pow(2, attempt)) |