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';
import { Loader } from 'lucide-react';

const buttonVariants = cva(
  "inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-lg text-sm font-medium transition-all disabled:pointer-events-none disabled:opacity-50 [&_svg]:pointer-events-none [&_svg:not([class*='size-'])]:size-4 shrink-0 [&_svg]:shrink-0 outline-none focus-visible:border-ring focus-visible:ring-ring/10 active:scale-[0.99] focus-visible:ring-[3px] aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive",
  {
    variants: {
      variant: {
        default: 'bg-primary text-primary-foreground shadow-xs hover:bg-primary/90',
        destructive:
          'bg-destructive text-white shadow-xs hover:bg-destructive/90 focus-visible:ring-destructive/20 dark:focus-visible:ring-destructive/40 dark:bg-destructive/60',
        outline:
          'border bg-background shadow-xs hover:bg-accent hover:text-accent-foreground dark:bg-input/30 dark:border-input dark:hover:bg-input/50',
        secondary: 'bg-secondary text-secondary-foreground shadow-xs hover:bg-secondary/80',
        ghost: 'hover:bg-accent hover:text-accent-foreground dark:hover:bg-accent/50',
        link: 'text-primary underline-offset-4 hover:underline',
      },
      size: {
        default: 'h-9 px-4 py-2 has-[>svg]:px-3',
        sm: 'h-8 rounded-sm text-xs gap-1.5 px-2.5 has-[>svg]:px-2.5',
        lg: 'h-10 min-h-10 rounded-md px-6 has-[>svg]:px-4 rounded-lg',
        icon: 'size-9',
      },
    },
    defaultVariants: {
      variant: 'default',
      size: 'default',
    },
  },
);

function Button({
  className,
  variant,
  size,
  asChild = false,
  isLoading = false,
  children,
  disabled,
  type,
  ...props
}: React.ComponentProps<'button'> &
  VariantProps<typeof buttonVariants> & {
    asChild?: boolean;
    isLoading?: boolean;
  }) {
  const Comp = asChild ? Slot : 'button';

  return (
    <Comp
      data-slot="button"
      className={cn(buttonVariants({ variant, size, className }))}
      {...props}
      type={type || 'button'}
      disabled={disabled || isLoading}
    >
      {isLoading ? (
        <span className="flex items-center gap-2">
          <Loader className="animate-spin" />
          {children}
        </span>
      ) : (
        children
      )}
    </Comp>
  );
}

export { Button, buttonVariants };