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document.addEventListener("DOMContentLoaded", function() {
const departureList = document.getElementById('departurelist');
const syncFailedMarker = document.getElementById('syncfailedmarker');
const showDepartures = (departureText) => {
departureList.innerHTML = departureText;
};
const updateOfflineDepartures = () => {
const listEntries = departureList.children;
const now = Math.floor(Date.now() / 1000);
for (const listEntry of listEntries) {
const departureTimestamp = listEntry.dataset.timestamp;
if (departureTimestamp < now) {
departureList.removeChild(listEntry);
} else {
countdownNodes = listEntry.querySelectorAll(".time");
for (i = 0; i < countdownNodes.length; i++) {
for (const countdown of countdownNodes[i].childNodes) {
if ((countdown.nodeType == document.TEXT_NODE) && (countdown.textContent.includes("min"))) {
if (departureTimestamp - 60 < now) {
countdown.textContent = "sofort";
} else {
countdown.textContent = Math.floor((departureTimestamp - now) / 60) + " min";
}
}
}
}
}
}
};
const fetchDepartures = () => {
var fetchUrl = window.location.href;
if (fetchUrl.includes("?")) {
fetchUrl += "&ajax=1";
} else {
fetchUrl += "?ajax=1";
}
fetch(fetchUrl)
.then(response => {
if (!response.ok) {
throw Error(response.statusText);
}
return response.text()
})
.then(departureText => {
syncFailedMarker.style.display = "none";
showDepartures(departureText);
})
.catch(err => {
syncFailedMarker.style.display = "inline-block";
updateOfflineDepartures();
});
};
setInterval(fetchDepartures, 60000);
});
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