import React from 'react';

interface SpinnerProps {
  className?: string;
  size?: 'sm' | 'md' | 'lg';
  finished?: boolean;
}

export default function Spinner({ className = '', size = 'md', finished = false }: SpinnerProps) {
  if (finished) {
    // Return a checkmark or completed state
    return (
      <div className={`${className}`}>
        ✓
      </div>
    );
  }
  const sizeClasses = {
    sm: 'h-4 w-4',
    md: 'h-6 w-6',
    lg: 'h-8 w-8'
  };

  return (
    <div className={`${sizeClasses[size]} ${className}`}>
      <svg 
        className="animate-spin" 
        xmlns="http://www.w3.org/2000/svg" 
        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>
    </div>
  );
}