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

const buttonVariants = cva(
  "inline-flex items-center justify-center gap-2 rounded-lg text-sm font-medium transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-offset-2 disabled:pointer-events-none disabled:opacity-60",
  {
    variants: {
      variant: {
        default: "bg-primary-600 text-white hover:bg-primary-700 focus-visible:ring-primary-500",
        secondary: "border border-neutral-300 bg-white text-neutral-700 hover:bg-neutral-50 focus-visible:ring-neutral-400",
        destructive: "bg-danger text-white hover:opacity-90 focus-visible:ring-danger",
        success: "bg-success text-white hover:opacity-90 focus-visible:ring-success",
        warning: "border border-warning bg-warning-50 text-warning-700 hover:bg-warning-100 focus-visible:ring-warning",
        ghost: "text-neutral-700 hover:bg-neutral-100 focus-visible:ring-neutral-400",
        link: "text-primary-600 underline-offset-4 hover:underline focus-visible:ring-primary-500",
      },
      size: {
        sm: "h-8 px-3 py-1.5 text-xs",
        md: "h-10 px-4 py-2.5",
        lg: "h-11 px-5 py-3",
        icon: "h-10 w-10",
      },
    },
    defaultVariants: { variant: "default", size: "md" },
  }
);

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

export function Button({ className, variant, size, asChild, ...props }: ButtonProps) {
  const Comp = asChild ? Slot : "button";
  return <Comp className={cn(buttonVariants({ variant, size }), className)} {...props} />;
}

export { buttonVariants };