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script.js
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script.js
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async function websiteUp(url) {
// TODO Fix CORS
try {
const response = await fetch(url, { method: 'options' });
return response.ok;
} catch (error) {
console.error(`An error occurred while checking the URL '${url}': ${error.message}`);
}
}
async function check(destination, container, dot, message, button) {
dot.className = 'dot orange';
message.textContent = 'Checking availability...';
button.style.visibility = 'hidden';
const destinationUp = await websiteUp(destination);
if (destinationUp) {
console.log('Destination is back up');
dot.className = 'dot green';
message.textContent = 'URL is back online.';
button.textContent = "Go to URL.";
button.onclick = function () {
window.location.href = destination;
};
} else {
dot.className = 'dot red';
message.textContent = 'URL is still down.';
button.textContent = "Check again.";
button.onclick = function () {
check(destination, container, dot, message, button);
};
}
button.style.visibility = 'visible';
}
function createCheckButton(destination) {
const dot = document.createElement('span');
const message = document.createElement('span');
const button = document.createElement('button');
const container = document.getElementById('checkContainer');
container.appendChild(dot);
container.appendChild(message);
container.appendChild(button);
check(destination, container, dot, message, button);
}
function createTryAgainButton(destination) {
const button = document.createElement('button');
button.textContent = 'Try Again';
button.onclick = function () {
window.location.href = destination;
}
document.getElementById('checkContainer').appendChild(button);
}
function checkDestination() {
const url = window.location.search;
const searchParams = new URLSearchParams(url);
const destination = searchParams.get('destination');
if (destination) {
createTryAgainButton(destination);
}
}
checkDestination();