import React from 'react';

interface ButtonProps extends React.ButtonHTMLAttributes<HTMLButtonElement> {
  variant?: 'primary' | 'secondary' | 'outline' | 'ghost';
  size?: 'sm' | 'md' | 'lg';
  children: React.ReactNode;
  fullWidth?: boolean;
}

/**
 * Reusable Button component with multiple variants and sizes
 * Follows accessibility best practices with proper ARIA attributes
 */
export const Button: React.FC<ButtonProps> = ({
  variant = 'primary',
  size = 'md',
  children,
  fullWidth = false,
  className = '',
  ...props
}) => {
  const baseStyles = 'inline-flex items-center justify-center font-semibold rounded-lg transition-all duration-200 focus:outline-none focus:ring-2 focus:ring-offset-2 disabled:opacity-50 disabled:cursor-not-allowed';
  
  const variants = {
    primary: 'bg-primary-500 text-neutral-900 hover:bg-primary-400 focus:ring-primary-500 shadow-md hover:shadow-lg',
    secondary: 'bg-secondary-300 text-neutral-900 hover:bg-secondary-400 focus:ring-secondary-500',
    outline: 'border-2 border-primary-500 text-neutral-900 hover:bg-primary-50 focus:ring-primary-500',
    ghost: 'text-neutral-900 hover:bg-primary-50 focus:ring-primary-500'
  };
  
  const sizes = {
    sm: 'px-4 py-2 text-sm',
    md: 'px-6 py-3 text-base',
    lg: 'px-8 py-4 text-lg'
  };
  
  const widthClass = fullWidth ? 'w-full' : '';
  
  return (
    <button
      className={`${baseStyles} ${variants[variant]} ${sizes[size]} ${widthClass} ${className}`}
      {...props}
    >
      {children}
    </button>
  );
};