Initial open-source self-hosted Songs2YT edition

components/ScrollReveal.tsx

@@ -0,0 +1,58 @@
+"use client";
+
+import { useEffect, useRef, useState, type ReactNode } from "react";
+
+type Direction = "up" | "left" | "right";
+
+type Props = {
+  children: ReactNode;
+  className?: string;
+  delay?: number;
+  direction?: Direction;
+};
+
+const OFFSET: Record<Direction, string> = {
+  up: "translate-y-10",
+  left: "-translate-x-10",
+  right: "translate-x-10",
+};
+
+export function ScrollReveal({
+  children,
+  className = "",
+  delay = 0,
+  direction = "up",
+}: Props) {
+  const ref = useRef<HTMLDivElement>(null);
+  const [visible, setVisible] = useState(false);
+
+  useEffect(() => {
+    const el = ref.current;
+    if (!el) return;
+
+    const observer = new IntersectionObserver(
+      ([entry]) => {
+        if (entry.isIntersecting) {
+          setVisible(true);
+          observer.unobserve(el);
+        }
+      },
+      { threshold: 0.15, rootMargin: "0px 0px -40px 0px" },
+    );
+
+    observer.observe(el);
+    return () => observer.disconnect();
+  }, []);
+
+  return (
+    <div
+      ref={ref}
+      className={`transition-all duration-700 ease-out ${className} ${
+        visible ? "translate-x-0 translate-y-0 opacity-100" : `opacity-0 ${OFFSET[direction]}`
+      }`}
+      style={{ transitionDelay: `${delay}ms` }}
+    >
+      {children}
+    </div>
+  );
+}