Refactor everything

internal/server/public/main.js

@@ -0,0 +1,50 @@
+// Format time in "Jan 02, 2006" format
+function formatDate(date) {
+    let options = {
+        year: 'numeric',
+        month: 'short',
+        day: 'numeric'
+    }
+    if (timeZone !== "Local") { options.timeZone = timeZone }
+    let dateFormat = new Intl.DateTimeFormat([langName, "en"], options)
+    return dateFormat.format(date)
+}
+
+async function graceActive() {
+    const response = await fetch("/api/grace");
+    const active = await response.text();
+    return active === "true"
+}
+
+// Set today's date and grace status
+function updateTime() {
+    document.getElementById("today-date").innerText = formatDate(Date.now());
+    graceActive().then(v => document.getElementById("grace").hidden = !v)
+}
+
+// Start interval to update time at start of every minute
+function callEveryMinute() {
+    setInterval(updateTime, 1000 * 60);
+}
+
+// Begin above interval
+function beginTimeUpdater() {
+    const difference = (60 - new Date().getSeconds()) * 1000;
+    setTimeout(callEveryMinute, difference);
+    setTimeout(updateTime, difference);
+    updateTime();
+}
+
+// This does NOT properly sanitize, and assumes a well-meaning user
+function sanitize(title) {
+    return title
+        .trim()
+        .replace(/ +/g, '-')
+        .replace(/[!*'();:@&=+$,\/?#\[\]]/g, '')
+}
+
+// Open a new note
+function newNote(text_prompt) {
+    name = sanitize(prompt(text_prompt + ':'))
+    window.location.replace('/notes/' + name)
+}