import { dynamic } from "@solidjs/web";
import { omit, untrack } from "solid-js";
import { useFieldsetContext } from "../../internals/fieldset-context.jsx";
import { mergeRootProps } from "../../internals/merge-root-props.jsx";
import { resolveClassStyle } from "../../internals/resolve-class-style.jsx";
import { useRegisteredLabelId } from "../../internals/use-registered-label-id.jsx";
/**
 * An accessible label that is automatically associated with the fieldset.
 * Renders a `<legend>` element (or `as` override).
 *
 * On mount, registers its id with the root so `aria-labelledby` wires up.
 * On unmount, clears the registration. The root's `legendId` signal opts into
 * `ownedWrite` so the write from `useRegisteredLabelId`'s owned setup/cleanup
 * doesn't trip the Solid 2 write-in-owned-scope check.
 */
export function FieldsetLegend(props) {
  const context = useFieldsetContext();

  // `untrack` silences the dev-mode STRICT_READ_UNTRACKED warning (RFC 08)
  // that fires on any top-level reactive prop read. The id is only consumed
  // once during setup by `useBaseUiId`.
  const idOverride = untrack(() => typeof props.id === "string" ? props.id : undefined);
  // When rendered outside a real `<Fieldset.Root>` (the NOOP context),
  // `setLegendId` is absent — fall back to a no-op so the legend still
  // generates a stable id locally without blowing up.
  const setLegendId = context.setLegendId ?? (_id => {});
  const id = useRegisteredLabelId(idOverride, setLegendId);

  // Strip the consumer's `id` so the authoritative `id` we emit below wins.
  const userStyling = resolveClassStyle(props, () => ({
    disabled: context.disabled()
  }));
  const userHtmlProps = omit(props, "class", "style", "attrs", "as", "id");
  const internalProps = {
    id,
    get "data-disabled"() {
      return context.disabled() ? "" : undefined;
    }
  };
  const styledUserProps = mergeRootProps(userStyling, userHtmlProps);
  const merged = mergeRootProps(internalProps, styledUserProps);
  const Tag = dynamic(() => props.as ?? "legend");
  return <Tag {...merged} />;
}
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