/**
 * Button Component
 * 
 * Accessible, styled button following Shinecode design system
 */

import { type ButtonHTMLAttributes, type ReactNode } from 'react';

export interface ButtonProps extends ButtonHTMLAttributes<HTMLButtonElement> {
  variant?: 'primary' | 'outline' | 'ghost' | 'soft';
  size?: 'sm' | 'md' | 'lg';
  children: ReactNode;
}

export function Button({
  variant = 'primary',
  size = 'md',
  className = '',
  children,
  disabled,
  ...props
}: ButtonProps) {
  const baseStyles =
    'inline-flex items-center justify-center gap-2 font-semibold transition-all duration-200 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-brand-500 focus-visible:ring-offset-2 disabled:opacity-50 disabled:cursor-not-allowed disabled:pointer-events-none';

  const variants = {
    primary:
      'bg-brand-600 text-white shadow-brand hover:bg-brand-700 active:bg-brand-800',
    outline:
      'border-2 border-border-strong bg-surface text-ink hover:border-brand-500 hover:bg-surface-soft active:border-brand-600',
    ghost: 'text-ink hover:bg-surface-soft active:bg-border',
    soft: 'bg-brand-50 text-brand-700 hover:bg-brand-100 active:bg-brand-200',
  };

  const sizes = {
    sm: 'px-3 py-1.5 text-sm rounded-lg',
    md: 'px-5 py-2.5 text-base rounded-xl',
    lg: 'px-6 py-3 text-lg rounded-xl',
  };

  return (
    <button
      className={`${baseStyles} ${variants[variant]} ${sizes[size]} ${className}`}
      disabled={disabled}
      {...props}
    >
      {children}
    </button>
  );
}