check internet connection

function checkSpeed(){
		var internetSpeedTest = {
			run: function(callback) {
				var startTime = new Date().getTime();
				fetch(location.pathname, { method: "HEAD" })
				.then(response => {
					var endTime = new Date().getTime();
					var duration = (endTime - startTime);
					var latency = duration;
					callback(latency);
				})
				.catch(error => {
					console.error("Error during speed test:", error);
					callback(null);
				});
			}
			};

			internetSpeedTest.run(function(latency) {
			if (latency !== null) {
				console.log("Latensi Koneksi: " + latency + " ms");
				if (latency < 500) {
					console.log("Koneksi Cepat");
				} else if (latency < 800) {
					console.log("Koneksi Menengah");
				} else {
					console.log("Koneksi Lambat");
				}
			} else {
				console.log("Tidak dapat mengukur kecepatan koneksi.");
			}
		});
	}



let isAlertShown = false;
		setInterval(function() {
			if (!window.navigator.onLine && !isAlertShown) {
				isAlertShown = true;
				Swal.fire({
					title: "Tidak ada koneksi internet",
					text: "Pastikan koneksi internet-mu tersambung dan coba kembali",
					icon: "warning",
					showCancelButton: false,
					showConfirmButton: false,
					confirmButtonColor: "#3085d6",
					allowOutsideClick: false,
					allowEscapeKey: false,
				});
			} else if (window.navigator.onLine && isAlertShown) {
				Swal.close();
				isAlertShown = false;
			}
		}, 1000);