Magnetic Button

"use client";
import * as React from "react";
import { cn } from "./utils";
import { motion, useReducedMotion, useSpring } from "motion/react";
import { Button, type ButtonProps } from "./button";
export function MagneticButton({ children, className, ...props }: ButtonProps) {
  const reduce = useReducedMotion();
  const x = useSpring(0, { stiffness: 260, damping: 20 });
  const y = useSpring(0, { stiffness: 260, damping: 20 });
  const reset = () => {
    x.set(0);
    y.set(0);
  };
  React.useEffect(() => {
    if (reduce || props.disabled || props.loading) {
      x.jump(0);
      y.jump(0);
    }
  }, [reduce, props.disabled, props.loading, x, y]);
  return (
    <span
      className={cn("inline-block p-3", className)}
      onPointerMove={(e) => {
        if (
          reduce ||
          props.disabled ||
          props.loading ||
          e.pointerType !== "mouse"
        )
          return;
        const r = e.currentTarget.getBoundingClientRect();
        x.set(
          Math.max(
            -10,
            Math.min(10, (e.clientX - r.left - r.width / 2) * 0.18),
          ),
        );
        y.set(
          Math.max(-8, Math.min(8, (e.clientY - r.top - r.height / 2) * 0.18)),
        );
      }}
      onPointerLeave={reset}
      onPointerCancel={reset}
      onBlur={reset}
    >
      <motion.span className="inline-block" style={{ x, y }}>
        <Button {...props}>{children}</Button>
      </motion.span>
    </span>
  );
}

import { clsx, type ClassValue } from "clsx";
import { twMerge } from "tailwind-merge";
export function cn(...values: ClassValue[]) {
  return twMerge(clsx(values));
}

"use client";
import * as React from "react";
import { Slot } from "radix-ui";
import { LoaderCircle } from "lucide-react";
import { cn } from "./utils";
export type ButtonProps = React.ButtonHTMLAttributes<HTMLButtonElement> & {
  variant?: "primary" | "secondary" | "outline" | "ghost" | "danger";
  size?: "sm" | "md" | "lg";
  loading?: boolean;
  asChild?: boolean;
};
export function Button({
  variant = "primary",
  size = "md",
  loading,
  asChild,
  className,
  children,
  disabled,
  ...props
}: ButtonProps) {
  const Comp = asChild ? Slot.Root : "button";
  return (
    <Comp
      type={asChild ? undefined : "button"}
      disabled={asChild ? undefined : disabled || loading}
      aria-disabled={disabled || loading || undefined}
      aria-busy={loading || undefined}
      className={cn(
        "relative inline-flex shrink-0 items-center justify-center gap-2 whitespace-nowrap rounded-lg border border-transparent text-sm font-medium leading-none transition-[background-color,border-color,box-shadow,transform] duration-150 focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-primary active:scale-[.98] disabled:pointer-events-none disabled:opacity-45 aria-disabled:pointer-events-none [&_svg]:shrink-0",
        {
          "bg-primary text-primary-foreground shadow-[inset_0_1px_0_#ffffff26,0_1px_2px_#00000012] hover:bg-primary/90":
            variant === "primary",
          "border-border/60 bg-muted text-foreground hover:bg-muted/70":
            variant === "secondary",
          "border-border bg-background text-foreground shadow-sm hover:bg-muted/60":
            variant === "outline",
          "text-muted-foreground hover:bg-muted hover:text-foreground":
            variant === "ghost",
          "bg-danger text-danger-foreground hover:bg-danger/90":
            variant === "danger",
        },
        {
          "h-8 px-3 text-xs": size === "sm",
          "h-10 px-4": size === "md",
          "h-12 px-6": size === "lg",
        },
        className,
      )}
      {...props}
    >
      {asChild ? (
        children
      ) : (
        <>
          <span
            className={cn(
              "inline-flex min-w-0 flex-1 items-center justify-center gap-2",
              loading && "invisible",
            )}
          >
            {children}
          </span>
          {loading && (
            <LoaderCircle
              aria-hidden="true"
              className="absolute size-4 animate-spin motion-reduce:animate-none"
            />
          )}
        </>
      )}
    </Comp>
  );
}