47 lines
1001 B
JavaScript
47 lines
1001 B
JavaScript
|
let ws
|
||
|
|
let shouldRetry = false
|
||
|
|
|
||
|
|
function start(location) {
|
||
|
|
shouldRetry = true
|
||
|
|
const port = self.location.port ? `:${self.location.port}` : ""
|
||
|
|
const socket = new WebSocket(`ws://${self.location.hostname}${port}/ws?location=${location}`)
|
||
|
|
socket.onopen = () => {
|
||
|
|
ws = socket
|
||
|
|
}
|
||
|
|
socket.onclose = () => {
|
||
|
|
reconnect()
|
||
|
|
}
|
||
|
|
socket.onerror = () => {
|
||
|
|
reconnect()
|
||
|
|
}
|
||
|
|
socket.onmessage = (event) => {
|
||
|
|
self.registration.showNotification("7am weather summary", {
|
||
|
|
body: event.data
|
||
|
|
})
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function cancel() {
|
||
|
|
shouldRetry = false
|
||
|
|
if (ws) {
|
||
|
|
ws.close()
|
||
|
|
ws = null
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
async function reconnect() {
|
||
|
|
while (shouldRetry) {
|
||
|
|
await new Promise((resolve) => {
|
||
|
|
setTimeout(resolve, 5 * 60 * 1000)
|
||
|
|
})
|
||
|
|
start(location)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
self.addEventListener("message", (event) => {
|
||
|
|
if (event.data === "cancel") {
|
||
|
|
cancel()
|
||
|
|
} else {
|
||
|
|
start(event.data)
|
||
|
|
}
|
||
|
|
})
|