import React from 'react';
import { Loader2 } from 'lucide-react';

interface LoadingButtonProps extends React.ButtonHTMLAttributes<HTMLButtonElement> {
  isLoading?: boolean;
  loadingText?: string;
  children: React.ReactNode;
  variant?: 'primary' | 'secondary' | 'danger' | 'outline';
  size?: 'sm' | 'md' | 'lg';
}

const LoadingButton: React.FC<LoadingButtonProps> = ({
  isLoading = false,
  loadingText,
  children,
  variant = 'primary',
  size = 'md',
  disabled,
  className = '',
  ...props
}) => {
  const variantStyles = {
    primary: 'bg-indigo-600 text-white hover:bg-indigo-700 focus:ring-indigo-500',
    secondary: 'bg-gray-600 text-white hover:bg-gray-700 focus:ring-gray-500',
    danger: 'bg-red-600 text-white hover:bg-red-700 focus:ring-red-500',
    outline: 'border-2 border-indigo-600 text-indigo-600 hover:bg-indigo-50 focus:ring-indigo-500',
  };

  const sizeStyles = {
    sm: 'px-3 py-1.5 text-sm',
    md: 'px-4 py-2 text-base',
    lg: 'px-6 py-3 text-lg',
  };

  const baseStyles =
    'inline-flex items-center justify-center font-medium rounded-lg transition-colors focus:outline-none focus:ring-2 focus:ring-offset-2 disabled:opacity-50 disabled:cursor-not-allowed';

  return (
    <button
      {...props}
      disabled={disabled || isLoading}
      className={`${baseStyles} ${variantStyles[variant]} ${sizeStyles[size]} ${className}`}
      aria-busy={isLoading}
    >
      {isLoading && <Loader2 className="w-4 h-4 mr-2 animate-spin" />}
      {isLoading && loadingText ? loadingText : children}
    </button>
  );
};

export default LoadingButton;