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"

// Button == lux.cloud's `.btn`: 10px radius, 14px medium label, a hairline
// `border-strong` outline over transparent, lifting to a 5%-ink wash on hover.
// `default` is `.btn.primary` — solid ink, inverted label. Shadows are gone
// for the same reason as on Card: they render as nothing on black and as grime
// on white.
const buttonVariants = cva(
  "inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-lg text-sm font-medium transition-colors focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring 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",
        destructive: "bg-destructive text-destructive-foreground hover:bg-destructive/90",
        outline: "border border-border-strong bg-transparent hover:border-foreground/30 hover:bg-foreground/5",
        secondary: "bg-secondary text-secondary-foreground hover:bg-secondary/80",
        ghost: "hover:bg-foreground/5 hover:text-foreground",
        link: "text-foreground underline-offset-4 hover:underline",
      },
      size: {
        default: "h-9 px-3.5 py-2",
        sm: "h-8 px-3 text-xs",
        lg: "h-10 px-8",
        xl: "h-12 px-10 text-base",
        icon: "h-9 w-9",
      },
    },
    defaultVariants: {
      variant: "default",
      size: "default",
    },
  }
)

export interface ButtonProps
  extends React.ButtonHTMLAttributes<HTMLButtonElement>,
    VariantProps<typeof buttonVariants> {
  asChild?: boolean
}

const Button = React.forwardRef<HTMLButtonElement, ButtonProps>(
  ({ className, variant, size, asChild = false, ...props }, ref) => {
    const Comp = asChild ? Slot : "button"
    return <Comp className={cn(buttonVariants({ variant, size, className }))} ref={ref} {...props} />
  }
)
Button.displayName = "Button"

export { Button, buttonVariants }