import { cn } from '@/lib/utils'
import Link from 'next/link'

interface ButtonProps {
  children: React.ReactNode
  variant?: 'primary' | 'secondary' | 'outline' | 'ghost'
  size?: 'sm' | 'md' | 'lg'
  href?: string
  className?: string
  onClick?: () => void
  type?: 'button' | 'submit' | 'reset'
  disabled?: boolean
}

const variants = {
  primary: 'bg-primary-600 text-white hover:bg-primary-500 shadow-sm',
  secondary: 'bg-gray-900 text-white hover:bg-gray-800 shadow-sm',
  outline: 'border-2 border-primary-600 text-primary-600 hover:bg-primary-50',
  ghost: 'text-gray-700 hover:bg-gray-100',
}

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

export function Button({
  children,
  variant = 'primary',
  size = 'md',
  href,
  className,
  onClick,
  type = 'button',
  disabled = false,
}: ButtonProps) {
  const baseStyles = cn(
    'inline-flex items-center justify-center font-semibold rounded-lg transition-colors focus:outline-none focus:ring-2 focus:ring-primary-500 focus:ring-offset-2 disabled:opacity-50 disabled:cursor-not-allowed',
    variants[variant],
    sizes[size],
    className
  )

  if (href) {
    return (
      <Link href={href} className={baseStyles}>
        {children}
      </Link>
    )
  }

  return (
    <button
      type={type}
      onClick={onClick}
      disabled={disabled}
      className={baseStyles}
    >
      {children}
    </button>
  )
}