import { ButtonHTMLAttributes, forwardRef } from 'react';
import { cn } from '@/utils/cn';

type Variant = 'primary' | 'secondary' | 'outline' | 'ghost' | 'danger';
type Size = 'sm' | 'md' | 'lg';

interface ButtonProps extends ButtonHTMLAttributes<HTMLButtonElement> {
  variant?: Variant;
  size?: Size;
}

const variants: Record<Variant, string> = {
  primary: 'bg-brand-600 text-white hover:bg-brand-700 shadow-sm',
  secondary: 'bg-ink-900 text-white hover:bg-ink-800',
  outline: 'border border-ink-200 text-ink-700 hover:bg-ink-50',
  ghost: 'text-ink-600 hover:bg-ink-100',
  danger: 'bg-red-600 text-white hover:bg-red-700',
};

const sizes: Record<Size, string> = {
  sm: 'h-8 px-3 text-sm',
  md: 'h-10 px-4 text-sm',
  lg: 'h-12 px-6 text-base',
};

export const Button = forwardRef<HTMLButtonElement, ButtonProps>(
  ({ className, variant = 'primary', size = 'md', ...props }, ref) => (
    <button
      ref={ref}
      className={cn(
        'inline-flex items-center justify-center gap-2 rounded-lg font-medium transition-colors',
        'focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-brand-500 focus-visible:ring-offset-2',
        'disabled:opacity-50 disabled:pointer-events-none',
        variants[variant],
        sizes[size],
        className,
      )}
      {...props}
    />
  ),
);
Button.displayName = 'Button';