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

const badgeVariants = cva(
  'inline-flex items-center rounded-md px-2 py-0.5 text-xs font-medium ring-1 ring-inset transition-colors',
  {
    variants: {
      variant: {
        default:
          'bg-muted text-foreground ring-border',
        primary:
          'bg-primary/10 text-primary ring-primary/20',
        accent:
          'bg-accent/10 text-accent ring-accent/20',
        warning:
          'bg-warning/10 text-warning ring-warning/20',
        destructive:
          'bg-destructive/10 text-destructive ring-destructive/20',
        outline:
          'bg-transparent text-foreground ring-border',
      },
    },
    defaultVariants: {
      variant: 'default',
    },
  },
);

export interface BadgeProps
  extends React.HTMLAttributes<HTMLSpanElement>,
    VariantProps<typeof badgeVariants> {}

/**
 * Badge — nhãn nhỏ dùng để đánh nhãn nội dung.
 * Variants: default | primary | accent | warning | destructive | outline
 */
export function Badge({ className, variant, ...props }: BadgeProps) {
  return <span className={cn(badgeVariants({ variant }), className)} {...props} />;
}