import * as React from 'react'

const buttonVariants = (variant = 'default', size = 'default', className = '') => {
  const base = "inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-md text-sm font-medium transition-all disabled:pointer-events-none disabled:opacity-50 [&_svg]:pointer-events-none [&_svg:not([class*='size-'])]:size-4 shrink-0 [&_svg]:shrink-0 outline-none focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px] aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive";
  
  const variants = {
    default: 'bg-primary text-primary-foreground hover:bg-primary/90',
    destructive: 'bg-destructive text-white hover:bg-destructive/90 focus-visible:ring-destructive/20 dark:focus-visible:ring-destructive/40 dark:bg-destructive/60',
    outline: 'border bg-background shadow-xs hover:bg-accent hover:text-accent-foreground dark:bg-input/30 dark:border-input dark:hover:bg-input/50',
    secondary: 'bg-secondary text-secondary-foreground hover:bg-secondary/80',
    ghost: 'hover:bg-accent hover:text-accent-foreground dark:hover:bg-accent/50',
    link: 'text-primary underline-offset-4 hover:underline',
  };

  const sizes = {
    default: 'h-9 px-4 py-2 has-[>svg]:px-3',
    sm: 'h-8 rounded-md gap-1.5 px-3 has-[>svg]:px-2.5',
    lg: 'h-10 rounded-md px-6 has-[>svg]:px-4',
    icon: 'size-9 flex items-center justify-center',
    'icon-sm': 'size-8 flex items-center justify-center',
    'icon-lg': 'size-10 flex items-center justify-center',
  };

  return `${base} ${variants[variant] || variants.default} ${sizes[size] || sizes.default} ${className}`;
};

const Button = React.forwardRef(({ className, variant, size, asChild = false, ...props }, ref) => {
  const Comp = "button";
  return (
    <Comp
      className={buttonVariants(variant, size, className)}
      ref={ref}
      {...props}
    />
  );
});
Button.displayName = "Button";

export { Button, buttonVariants };