/**
 * Standalone Cap.js widget for proof-of-work challenges.
 *
 * Creates and mounts a `<cap-widget>` element inside the given container.
 * The widget handles challenge creation, solving, and redemption via
 * the provided `AutomationClient`. After a successful solve the widget
 * auto-destroys and calls `onSolve` with the redeemed token.
 *
 * **Styling:** The widget is themed through CSS custom properties
 * (`--mb-cap-*` on the `.mb-adapt-cap` wrapper -> mapped to Cap.js `--cap-*`
 * variables). Avoid styling Cap.js internals directly; this wrapper only
 * touches Cap's attribution node so Adapt embeds do not show Cap branding.
 *
 * @example
 * ```typescript
 * import { AdaptCapWidget } from "@mochabug/adapt-web";
 * import { createConnectClient } from "@mochabug/adapt-core/connect";
 *
 * const widget = new AdaptCapWidget({
 *   container: "cap-container",
 *   automationId: "my-automation",
 *   client: createConnectClient({ id: "my-automation" }),
 *   onSolve: (token, expires) => {
 *     console.log("Solved:", token);
 *   },
 * });
 *
 * // Toggle dark mode at runtime
 * widget.setDarkMode(true);
 * ```
 */
import type { AutomationClient } from "@mochabug/adapt-core";
import type { CapWidgetI18n } from "./types.js";
import "@cap.js/widget";
/**
 * Options for creating an {@link AdaptCapWidget}.
 */
export interface AdaptCapWidgetOptions {
    /**
     * Where to mount the widget. Accepts an element ID string or an `HTMLElement`.
     *
     * @example
     * ```typescript
     * container: "cap-container"      // by ID
     * container: document.body        // by reference
     * ```
     */
    container: string | HTMLElement;
    /**
     * The automation ID used to create and redeem challenges.
     */
    automationId: string;
    /**
     * The automation client used for challenge API calls.
     * Create via `createConnectClient({ id })` from `@mochabug/adapt-core/connect`.
     */
    client: AutomationClient;
    /**
     * Called when the challenge is successfully solved.
     * Pass the token to `startSession` / `run` as `challengeToken`.
     *
     * @param token - Redeemed challenge token
     * @param expires - When the token expires
     */
    onSolve: (token: string, expires: Date) => void;
    /**
     * Called when challenge solving fails.
     */
    onError?: (error: Error) => void;
    /**
     * Number of Web Workers used by Cap.js to solve challenges in parallel.
     * @default navigator.hardwareConcurrency || 8
     */
    workerCount?: number;
    /**
     * Name of the hidden token input generated by Cap.js.
     * @default "cap-token"
     */
    hiddenFieldName?: string;
    /**
     * Custom URL for Cap.js's troubleshooting link when instrumentation blocks a user.
     */
    troubleshootingUrl?: string;
    /**
     * Disable Cap.js haptic feedback for this widget.
     */
    disableHaptics?: boolean;
    /**
     * Custom label overrides for the Cap.js widget UI.
     */
    i18n?: CapWidgetI18n;
}
/**
 * Standalone Cap.js widget for proof-of-work challenges.
 *
 * This component can be used independently of AdaptWebClient to handle
 * PoW challenges. After solving, the token can be used with any session
 * starting method in @mochabug/adapt-core.
 */
export declare class AdaptCapWidget {
    private containerElement;
    private widgetContainer;
    private widgetElement;
    private attributionObserver;
    private destroyed;
    private options;
    constructor(options: AdaptCapWidgetOptions);
    private injectStyles;
    private mountWidget;
    private hideCapAttribution;
    /**
     * Enable or disable dark mode styling.
     */
    setDarkMode(dark: boolean): void;
    /**
     * Clean up and remove the widget from DOM.
     * Called automatically after successful solve.
     */
    destroy(): void;
}