import React from 'react';

export interface ButtonProps extends React.ButtonHTMLAttributes<HTMLButtonElement> {
  variant?: 'primary' | 'secondary' | 'ghost';
  isLoading?: boolean;
}

export const Button = React.forwardRef<HTMLButtonElement, ButtonProps>(
  ({ className = '', variant = 'primary', isLoading, children, disabled, ...props }, ref) => {
    // * Base styles common to all buttons
    // * Removed font-medium from here to allow variants to control weight
    const baseStyles = 'inline-flex items-center justify-center rounded-xl text-sm px-5 py-2.5 transition-all duration-200 focus:outline-none focus:ring-2 focus:ring-offset-2 dark:focus:ring-offset-neutral-900 disabled:opacity-50 disabled:cursor-not-allowed disabled:hover:translate-y-0 disabled:hover:shadow-none';
    
    const variants = {
      // * Primary: Brand orange, semibold, lift effect, colored shadow
      primary: 'bg-brand-orange text-white font-semibold shadow-sm shadow-orange-200 dark:shadow-none hover:shadow-orange-300 dark:hover:shadow-brand-orange/20 hover:-translate-y-0.5 focus:ring-brand-orange',
      
      // * Secondary: White/Dark bg, medium weight, subtle border, hover shadow
      secondary: 'bg-white dark:bg-neutral-900 border border-neutral-200 dark:border-neutral-800 text-neutral-900 dark:text-white font-medium hover:bg-neutral-50 dark:hover:bg-neutral-800 shadow-sm hover:shadow-md dark:shadow-none focus:ring-neutral-200 dark:focus:ring-neutral-700',
      
      // * Ghost: Transparent, medium weight, hover background
      ghost: 'text-neutral-600 dark:text-neutral-400 font-medium hover:text-neutral-900 dark:hover:text-white hover:bg-neutral-100 dark:hover:bg-neutral-800 focus:ring-neutral-200',
    };

    return (
      <button
        ref={ref}
        className={`${baseStyles} ${variants[variant]} ${className}`}
        disabled={disabled || isLoading}
        {...props}
      >
        {isLoading && (
          <svg className="w-4 h-4 mr-2 animate-spin" fill="none" viewBox="0 0 24 24">
            <circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4" />
            <path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z" />
          </svg>
        )}
        {children}
      </button>
    );
  }
);

Button.displayName = 'Button';