import type { JSX, ValidComponent } from "@solidjs/web";
import { dynamic } from "@solidjs/web";
import { omit, untrack } from "solid-js";
import { mergeRootProps } from "../../internals/merge-root-props";
import { resolveClassStyle } from "../../internals/resolve-class-style";
import type { BaseUIComponentProps } from "../../internals/types";
import { useRegisteredLabelId } from "../../internals/use-registered-label-id";
import {
	type ProgressRootState,
	useProgressRootContext,
} from "../progress-root-context.ts";

export interface ProgressLabelState extends ProgressRootState {}

export interface ProgressLabelProps
	extends BaseUIComponentProps<"span", ProgressLabelState> {
	/**
	 * Tag/component to render. Defaults to `"span"`. Replaces the
	 * pre-spike `render` prop (axis G).
	 */
	as?: ValidComponent;
}

/**
 * An accessible label for the progress bar. Renders a `<span>` (or `as`
 * override). On mount registers its id with the root so `aria-labelledby`
 * wires up.
 */
export function ProgressLabel(props: ProgressLabelProps): JSX.Element {
	const context = useProgressRootContext();

	const idOverride = untrack(() =>
		typeof props.id === "string" ? props.id : undefined,
	);
	const id = useRegisteredLabelId(idOverride, context.setLabelId);

	// Resolve `class`/`style` so function values (stateful styling) are invoked
	// with the progress state instead of being spread to the DOM raw.
	const userClassStyle = resolveClassStyle(props, () => ({
		status: context.status(),
	}));
	const userProps = omit(props, "as", "id", "class", "style", "attrs");

	const internalSlot = {
		id,
		role: "presentation" as const,
		get "data-indeterminate"(): "" | undefined {
			return context.status() === "indeterminate" ? "" : undefined;
		},
		get "data-progressing"(): "" | undefined {
			return context.status() === "progressing" ? "" : undefined;
		},
		get "data-complete"(): "" | undefined {
			return context.status() === "complete" ? "" : undefined;
		},
	};

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

	const Tag = dynamic(() => props.as ?? "span");
	return <Tag {...merged} />;
}