import React from 'react';
import { clsx } from 'clsx';
import { twMerge } from 'tailwind-merge';

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

export function Button({
  variant = 'primary',
  size = 'md',
  className,
  children,
  ...props
}: ButtonProps) {
  const baseStyles =
    'inline-flex items-center justify-center font-medium rounded-lg transition-all duration-200 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-offset-slate-900 disabled:opacity-50 disabled:cursor-not-allowed active:scale-[0.98]';

  const variants = {
    primary:
      'bg-indigo-600 hover:bg-indigo-500 text-white shadow-lg shadow-indigo-500/25 focus:ring-indigo-500',
    secondary:
      'bg-slate-800 hover:bg-slate-700 text-slate-100 border border-slate-700/60 focus:ring-slate-500',
    outline:
      'border border-slate-700 hover:border-slate-500 text-slate-300 hover:text-white bg-transparent focus:ring-slate-500',
    danger:
      'bg-rose-600 hover:bg-rose-500 text-white shadow-lg shadow-rose-500/25 focus:ring-rose-500',
    ghost:
      'text-slate-400 hover:text-white hover:bg-slate-800/60 focus:ring-slate-500',
  };

  const sizes = {
    sm: 'px-2.5 py-1.5 text-xs gap-1.5',
    md: 'px-4 py-2 text-sm gap-2',
    lg: 'px-5 py-2.5 text-base gap-2.5',
  };

  return (
    <button
      className={twMerge(clsx(baseStyles, variants[variant], sizes[size], className))}
      {...props}
    >
      {children}
    </button>
  );
}