wulf-pulse/components/ui/status-light.tsx

/* StatusLight — 8px colored square indicator.
 *
 * The defining geometry of /status: square, not circle, faintly
 * outlined so it reads on white.  Five states map to the brand
 * status palette.  Optional pulse is for "in flight" / "running" rows. */

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

export type StatusLightState = 'ok' | 'warn' | 'error' | 'idle' | 'pending';

interface StatusLightProps {
  state: StatusLightState;
  size?: 'sm' | 'md' | 'lg';
  pulse?: boolean;
  label?: string;
  className?: string;
}

const sizeMap = {
  sm: 'h-1.5 w-1.5',
  md: 'h-2 w-2',
  lg: 'h-3 w-3',
} as const;

const stateMap: Record<StatusLightState, string> = {
  ok: 'bg-emerald-500',
  warn: 'bg-amber-500',
  error: 'bg-destructive',
  idle: 'bg-muted-foreground/40',
  pending: 'bg-primary',
};

export function StatusLight({
  state,
  size = 'md',
  pulse = false,
  label,
  className,
}: StatusLightProps) {
  return (
    <span
      role="status"
      aria-label={label ?? state}
      className={cn(
        'inline-block ring-1 ring-foreground/10 align-middle',
        sizeMap[size],
        stateMap[state],
        pulse && state === 'pending' && 'animate-pulse',
        className,
      )}
    />
  );
}