import type { JSX, ValidComponent } from "@solidjs/web";
/**
 * `<Menu.Group>` — groups related menu items with a label. Mirrors
 * `packages/react/src/menu/group/MenuGroup.tsx`.
 */

import { dynamic } from "@solidjs/web";
import { createSignal, omit } from "solid-js";
import { mergeRootProps } from "../../internals/merge-root-props";
import { resolveClassStyle } from "../../internals/resolve-class-style";
import type { BaseUIComponentProps } from "../../internals/types";
import {
	MenuGroupContext,
	type MenuGroupContextValue,
} from "./menu-group-context";

export type MenuGroupState = Record<string, never>;

export interface MenuGroupProps
	extends BaseUIComponentProps<"div", MenuGroupState> {
	/**
	 * Tag/component to render. Defaults to `"div"`. Replaces the
	 * pre-spike `render` prop (axis G).
	 */
	as?: ValidComponent;
	children?: JSX.Element;
}

export function MenuGroup(props: MenuGroupProps): JSX.Element {
	const [labelId, setLabelId] = createSignal<string | undefined>(undefined, {
		ownedWrite: true,
	});

	const contextValue: MenuGroupContextValue = { setLabelId };

	const internal = {
		role: "group",
		get "aria-labelledby"() {
			// Seed "" so Solid's spread subscribes to the key.
			return labelId() ?? "";
		},
	};

	const userClassStyle = resolveClassStyle(props, () => ({}));

	const userProps = omit(props, "as", "class", "style", "attrs", "children");

	let merged: Record<string, unknown> = mergeRootProps(
		internal,
		userClassStyle,
	);
	merged = mergeRootProps(merged, userProps);

	const Tag = dynamic(() => props.as ?? "div");
	return (
		<Tag {...merged}>
			<MenuGroupContext value={contextValue}>{props.children}</MenuGroupContext>
		</Tag>
	);
}