import React from 'react';

export const Card = ({ children, className = '', ...props }) => (
  <div
    className={`bg-white overflow-hidden shadow-sm border border-gray-200 rounded-xl transition-all duration-200 hover:shadow-md ${className}`}
    {...props}
  >
    {children}
  </div>
);

export const CardHeader = ({ children, className = '', ...props }) => (
  <div className={`px-6 py-4 border-b border-gray-200 ${className}`} {...props}>
    {children}
  </div>
);

export const CardContent = ({ children, className = '', ...props }) => (
  <div className={`px-6 py-4 ${className}`} {...props}>
    {children}
  </div>
);

export const CardTitle = ({ children, className = '', ...props }) => (
  <h3 className={`text-lg font-semibold text-gray-900 ${className}`} {...props}>
    {children}
  </h3>
);

export const CardDescription = ({ children, className = '', ...props }) => (
  <p className={`text-sm text-gray-600 mt-1 ${className}`} {...props}>
    {children}
  </p>
);

export const Button = ({ 
  children, 
  variant = 'primary', 
  size = 'md', 
  className = '', 
  disabled = false,
  loading = false,
  ...props 
}) => {
  const baseStyles = 'inline-flex items-center justify-center rounded-lg font-medium 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-blue-600 text-white hover:bg-blue-700 focus:ring-blue-500 shadow-sm hover:shadow-md',
    secondary: 'bg-gray-100 text-gray-900 hover:bg-gray-200 focus:ring-gray-500 border border-gray-300',
    outline: 'border border-gray-300 text-gray-700 bg-white hover:bg-gray-50 focus:ring-blue-500',
    ghost: 'text-gray-700 hover:bg-gray-100 focus:ring-gray-500',
    danger: 'bg-red-600 text-white hover:bg-red-700 focus:ring-red-500',
  };

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

  return (
    <button
      className={`${baseStyles} ${variants[variant]} ${sizes[size]} ${className}`}
      disabled={disabled || loading}
      {...props}
    >
      {loading && (
        <svg className="animate-spin -ml-1 mr-2 h-4 w-4" 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>
  );
};

export const Input = ({ label, error, className = '', ...props }) => (
  <div className="space-y-1">
    {label && (
      <label className="block text-sm font-medium text-gray-700">
        {label}
      </label>
    )}
    <input
      className={`block w-full rounded-lg border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 transition-colors ${
        error ? 'border-red-300 focus:border-red-500 focus:ring-red-500' : ''
      } ${className}`}
      {...props}
    />
    {error && (
      <p className="text-sm text-red-600">{error}</p>
    )}
  </div>
);

export const Textarea = ({ label, error, className = '', ...props }) => (
  <div className="space-y-1">
    {label && (
      <label className="block text-sm font-medium text-gray-700">
        {label}
      </label>
    )}
    <textarea
      className={`block w-full rounded-lg border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500 transition-colors ${
        error ? 'border-red-300 focus:border-red-500 focus:ring-red-500' : ''
      } ${className}`}
      {...props}
    />
    {error && (
      <p className="text-sm text-red-600">{error}</p>
    )}
  </div>
);

export const Badge = ({ children, variant = 'default', className = '' }) => {
  const variants = {
    default: 'bg-gray-100 text-gray-800',
    success: 'bg-green-100 text-green-800',
    warning: 'bg-yellow-100 text-yellow-800',
    error: 'bg-red-100 text-red-800',
    info: 'bg-blue-100 text-blue-800',
  };

  return (
    <span className={`inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium ${variants[variant]} ${className}`}>
      {children}
    </span>
  );
};

export const Alert = ({ children, variant = 'info', className = '' }) => {
  const variants = {
    info: 'bg-blue-50 border-blue-200 text-blue-800',
    success: 'bg-green-50 border-green-200 text-green-800',
    warning: 'bg-yellow-50 border-yellow-200 text-yellow-800',
    error: 'bg-red-50 border-red-200 text-red-800',
  };

  return (
    <div className={`border-l-4 p-4 rounded-lg ${variants[variant]} ${className}`}>
      {children}
    </div>
  );
};

export const Tabs = ({ children, value, onValueChange }) => (
  <div className="w-full">
    <div className="border-b border-gray-200">
      <nav className="-mb-px flex space-x-8">
        {React.Children.map(children, (child, index) => 
          React.cloneElement(child, { 
            isActive: value === index,
            onClick: () => onValueChange(index)
          })
        )}
      </nav>
    </div>
  </div>
);

export const TabsTrigger = ({ children, isActive, onClick }) => (
  <button
    onClick={onClick}
    className={`whitespace-nowrap py-2 px-1 border-b-2 font-medium text-sm transition-colors ${
      isActive
        ? 'border-blue-500 text-blue-600'
        : 'border-transparent text-gray-500 hover:text-gray-700 hover:border-gray-300'
    }`}
  >
    {children}
  </button>
);

export const TabsContent = ({ children, isActive }) => (
  <div className={`pt-6 ${isActive ? 'block' : 'hidden'}`}>
    {children}
  </div>
);