1 files changed, 66 insertions, 0 deletions
diff --git a/src/lib/utils.ts b/src/lib/utils.ts
new file mode 100644
index 0000000..3678464
--- /dev/null
+++ b/src/lib/utils.ts
@@ -0,0 +1,66 @@
+export function formatDate(unixtimestamp: number) {
+  const months = [
+    'Jan',
+    'Feb',
+    'Mar',
+    'Apr',
+    'May',
+    'Jun',
+    'Jul',
+    'Aug',
+    'Sep',
+    'Oct',
+    'Nov',
+    'Dec'
+  ];
+
+  const date = new Date(unixtimestamp * 1000);
+  const day = date.getDate();
+  const month = months[date.getMonth()];
+  const year = date.getFullYear();
+
+  const formattedDate = `${day} ${month} ${year}`;
+  return formattedDate;
+}
+
+let serial = 0;
+
+export function next(): number {
+  serial++;
+  return serial;
+}
+
+export function scrollTabIntoView(el: string | HTMLElement, wait: boolean) {
+  function scrollTab() {
+    const element =
+      typeof el === 'string' ? document.querySelector(`[id^="wikitab-v0-${el}"]`) : el;
+    if (!element) return;
+
+    element.scrollIntoView({
+      behavior: 'smooth',
+      inline: 'start'
+    });
+  }
+
+  if (wait) {
+    setTimeout(() => {
+      scrollTab();
+    }, 1);
+  } else {
+    scrollTab();
+  }
+}
+
+export function isElementInViewport(el: string | HTMLElement) {
+  const element = typeof el === 'string' ? document.querySelector(`[id^="wikitab-v0-${el}"]`) : el;
+  if (!element) return;
+
+  const rect = element.getBoundingClientRect();
+
+  return (
+    rect.top >= 0 &&
+    rect.left >= 0 &&
+    rect.bottom <= (window.innerHeight || document.documentElement.clientHeight) &&
+    rect.right <= (window.innerWidth || document.documentElement.clientWidth)
+  );
+}