import * as React from 'react'
import { Slot } from '@radix-ui/react-slot'
import { cva, type VariantProps } from 'class-variance-authority'

import { cn } from '@/lib/utils'

const buttonVariants = cva(
  'inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-md text-sm font-medium ring-offset-background transition-all duration-300 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:pointer-events-none disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:size-4 [&_svg]:shrink-0',
  {
    variants: {
      variant: {
        default:
          'bg-primary text-primary-foreground hover:bg-primary-hover shadow-primary hover:shadow-glow',
        destructive: 'bg-destructive text-destructive-foreground hover:bg-destructive/90',
        outline: 'border border-input bg-background hover:bg-accent hover:text-accent-foreground',
        secondary:
          'bg-secondary text-secondary-foreground hover:bg-secondary-hover shadow-secondary',
        ghost: 'hover:bg-accent hover:text-accent-foreground',
        link: 'text-primary underline-offset-4 hover:underline',
        hero: 'bg-gradient-hero text-primary-foreground hover:scale-105 shadow-glow font-semibold',
        glass: 'bg-gradient-glass backdrop-blur-sm border border-border/50 hover:bg-accent/50',
        success: 'bg-success text-success-foreground hover:bg-success/90',
        premium:
          'bg-gradient-secondary text-secondary-foreground hover:scale-105 shadow-secondary font-semibold',
      },
      size: {
        default: 'h-10 px-4 py-2',
        sm: 'h-9 rounded-md px-3',
        lg: 'h-11 rounded-md px-8',
        xl: 'h-14 rounded-lg px-10 text-base',
        icon: 'h-10 w-10',
      },
    },
    defaultVariants: {
      variant: 'default',
      size: 'default',
    },
  }
)

export interface ButtonProps
  extends React.ComponentProps<'button'>,
    VariantProps<typeof buttonVariants> {
  asChild?: boolean
}

function Button({
  className,
  variant,
  size,
  asChild = false,
  ...props
}: ButtonProps) {
  const Comp = asChild ? Slot : 'button'

  return (
    <Comp
      data-slot="button"
      className={cn(buttonVariants({ variant, size, className }))}
      {...props}
    />
  )
}

export { Button, buttonVariants }
