import React from 'react'
import { cva, type VariantProps } from 'class-variance-authority'
import { cn } from '@/lib/utils/cn'
import { Loader2 } from 'lucide-react'

const buttonVariants = cva(
  'inline-flex items-center justify-center rounded-lg text-sm font-medium transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:opacity-50 disabled:pointer-events-none ring-offset-background',
  {
    variants: {
      variant: {
        default: 'bg-blue-600 text-white hover:bg-blue-700',
        destructive: 'bg-red-600 text-white hover:bg-red-700',
        outline: 'border border-gray-300 bg-transparent hover:bg-gray-50',
        secondary: 'bg-gray-100 text-gray-900 hover:bg-gray-200',
        ghost: 'hover:bg-gray-100 hover:text-gray-900',
        link: 'underline-offset-4 hover:underline text-blue-600'
      },
      size: {
        default: 'h-10 py-2 px-4',
        sm: 'h-8 px-3 text-xs',
        lg: 'h-12 px-8',
        icon: 'h-10 w-10'
      }
    },
    defaultVariants: {
      variant: 'default',
      size: 'default'
    }
  }
)

export interface ButtonProps
  extends React.ButtonHTMLAttributes<HTMLButtonElement>,
    VariantProps<typeof buttonVariants> {
  loading?: boolean
  loadingText?: string
}

const Button = React.forwardRef<HTMLButtonElement, ButtonProps>(
  ({ className, variant, size, loading, loadingText, children, disabled, ...props }, ref) => {
    return (
      <button
        className={cn(buttonVariants({ variant, size, className }))}
        ref={ref}
        disabled={disabled || loading}
        {...props}
      >
        {loading && (
          <Loader2 className="mr-2 h-4 w-4 animate-spin" />
        )}
        {loading ? loadingText || children : children}
      </button>
    )
  }
)
Button.displayName = 'Button'

export { Button, buttonVariants }