Button

import * as React from "react";
import { Slot } from "@radix-ui/react-slot";
import { cva, type VariantProps } from "class-variance-authority";
import { cn } from "@/lib/utils";

const buttonVariants = cva(
  "inline-flex items-center justify-center gap-2 rounded-lg text-sm font-medium whitespace-nowrap transition-[color,background-color,box-shadow,scale] duration-150 ease-out outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 focus-visible:ring-offset-background disabled:pointer-events-none disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:size-4 [&_svg]:shrink-0",
  {
    variants: {
      variant: {
        default: "bg-primary text-primary-foreground hover:bg-primary/90",
        secondary: "bg-secondary text-secondary-foreground hover:bg-secondary/80",
        outline:
          "bg-card shadow-border hover:shadow-border-hover dark:bg-secondary/30",
        ghost: "hover:bg-accent hover:text-accent-foreground",
        destructive:
          "bg-destructive text-destructive-foreground hover:bg-destructive/90",
        link: "text-primary underline-offset-4 hover:underline",
      },
      size: {
        // Optical alignment: an icon edge runs 2px tighter than a text edge.
        // :first/:last-child skip text nodes, so a bare label + one icon
        // resolves to a balanced tighter inset on both edges; wrapping the
        // label in a <span> scopes the reduction to the true icon side.
        default:
          "h-9 px-4 has-[>svg:first-child]:pl-3.5 has-[>svg:last-child]:pr-3.5",
        sm: "h-8 px-3 text-[13px] has-[>svg:first-child]:pl-2.5 has-[>svg:last-child]:pr-2.5",
        lg: "h-10 px-5 has-[>svg:first-child]:pl-4 has-[>svg:last-child]:pr-4",
        icon: "size-9",
      },
    },
    defaultVariants: {
      variant: "default",
      size: "default",
    },
  },
);

export interface ButtonProps
  extends React.ComponentProps<"button">,
    VariantProps<typeof buttonVariants> {
  /** Render the child element instead of a <button> (e.g. a framework Link). */
  asChild?: boolean;
  /** Disables press-scale feedback where the motion would distract. */
  static?: boolean;
}

/**
 * The house button. Interruptible press physics (scale retargets from
 * wherever it currently is), enumerated transitions, optical icon
 * alignment on both edges, and a `static` prop for motion opt-out.
 */

function Button({
  className,
  variant,
  size,
  asChild = false,
  static: isStatic = false,
  ...props
}: ButtonProps) {
  const Comp = asChild ? Slot : "button";
  return (
    <Comp
      data-slot="button"
      className={cn(
        buttonVariants({ variant, size }),
        !isStatic && "active:not-disabled:scale-[0.97]",
        className,
      )}
      {...props}
    />
  );
}

export { Button, buttonVariants };