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

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

const Button: React.FC<ButtonProps> = ({ 
  children, 
  variant = 'primary', 
  size = 'md', 
  isLoading = false, 
  icon, 
  className = '', 
  disabled,
  ...props 
}) => {
  const baseStyles = "inline-flex items-center justify-center rounded-lg font-medium transition-colors focus:outline-none focus:ring-2 focus:ring-offset-2 disabled:opacity-50 disabled:cursor-not-allowed";
  
  const variants = {
    primary: "bg-blue-600 text-white hover:bg-blue-700 focus:ring-blue-500",
    secondary: "bg-white dark:bg-slate-700 text-slate-700 dark:text-slate-200 border border-slate-300 dark:border-slate-600 hover:bg-slate-50 dark:hover:bg-slate-600 focus:ring-slate-500",
    danger: "bg-red-600 text-white hover:bg-red-700 focus:ring-red-500",
    ghost: "bg-transparent text-slate-600 dark:text-slate-300 hover:bg-slate-100 dark:hover:bg-slate-800",
    outline: "bg-transparent border border-blue-600 text-blue-600 hover:bg-blue-50 dark:hover:bg-blue-900/20"
  };

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

  return (
    <button 
      className={`${baseStyles} ${variants[variant]} ${sizes[size]} ${className}`}
      disabled={isLoading || disabled}
      {...props}
    >
      {isLoading && <Loader2 className="w-4 h-4 mr-2 animate-spin" />}
      {!isLoading && icon && <span className="mr-2">{icon}</span>}
      {children}
    </button>
  );
};

export default Button;