import type { JSX, ValidComponent } from "@solidjs/web";
import { dynamic } from "@solidjs/web";
import { 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 {
	type ProgressRootState,
	useProgressRootContext,
} from "../progress-root-context.ts";

export interface ProgressTrackState extends ProgressRootState {}

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

/**
 * Contains the progress bar indicator. Renders a `<div>` (or `as` override).
 *
 * §1 wave 2: replaces `renderElement` with `dynamic(() => props.as ?? "div")`.
 * The progress status (`indeterminate` | `progressing` | `complete`) projects
 * to `data-indeterminate` / `data-progressing` / `data-complete` via inline
 * reactive getters on the internal slot bag.
 */
export function ProgressTrack(props: ProgressTrackProps): JSX.Element {
	const context = useProgressRootContext();

	// Resolve `class`/`style` here so function values (stateful styling) are
	// invoked with the progress state — otherwise a `class={(state) => …}` is
	// spread to the DOM raw and never applied (no class attribute at all).
	const userClassStyle = resolveClassStyle(props, () => ({
		status: context.status(),
	}));
	const userProps = omit(props, "as", "class", "style", "attrs");

	const internalSlot = {
		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 ?? "div");
	return <Tag {...merged} />;
}