import ' rollup-plugin-inject-process-env';
/**
 * Shape of the `externalWidget` block on a booking-handoff form step.
 *
 * This mirrors `FormStepExternalWidget["externalWidget"]` from
 * `stentor-models@1.75.0`. See the local type-extension note in
 * `FormStepDisplay.tsx` for why it is redeclared here instead of imported.
 */
export interface ExternalWidgetConfig {
    anchorId: string;
    scriptSrc: string;
    configGlobal: string;
    config: Record<string, string | number | boolean>;
    successCallbackKey?: string;
    cacheBust?: boolean;
    renderTimeoutMs?: number;
    fallbackStep?: string;
}
export type ExternalWidgetOutcome = "pending" | "rendered" | "no_render" | "error";
export interface UseExternalWidgetOptions {
    /**
     * Fired once the anchor renders a bookable `#step-*` (any step other than a
     * no-match or loading step, e.g. `step-schedule` or the returning-visitor
     * `step-review`).
     */
    onRendered?: (provider: string) => void;
    /**
     * Fired when the anchor renders a no-match step (no coverage), or stays empty
     * with no `#step-loading` past the backstop `renderTimeoutMs`.
     */
    onNoRender?: (provider: string) => void;
    /**
     * Fired at most once per mounted handoff, the first time the partner script invokes
     * the configured success callback. Later invocations within the same handoff are
     * suppressed, reported to the console and counted (see `suppressedScheduledCount`)
     * -- CostGuide confirmed (2026-08-13) that it fires "whenever an appointment gets
     * scheduled", so a single handoff can produce more than one fire and a duplicate
     * dispatch double-counts the booking downstream.
     *
     * Suppression is deliberately NOT its own analytics event: a new eventType needs a
     * matching server-side eventName mapping in stentor-api, which is out of scope here.
     * The console error is the signal that works today in a visitor's browser, and
     * `suppressedScheduledCount` is there for a caller that wants to act on it.
     *
     * `payload` is whatever (if anything) the partner passes to it. CostGuide passes
     * nothing today -- it is a bare trigger with no appointment id, time or contractor --
     * but the parameter is kept tolerant in case that changes.
     */
    onScheduled?: (provider: string, payload?: unknown) => void;
    /**
     * Fired when the script fails to load, or the scriptSrc is rejected.
     */
    onError?: (provider: string) => void;
    /**
     * Fired alongside onNoRender/onError when `externalWidget.fallbackStep` is set,
     * so the caller can navigate there. Not fired when fallbackStep is unset --
     * the caller is expected to render an inline fallback message instead.
     */
    onFallback?: (fallbackStep: string) => void;
}
type AnchorState = "rendered" | "no_coverage" | "loading" | "empty";
/**
 * Classifies the current state of the anchor from the partner step id it shows.
 *
 * - a no-match step id  -> "no_coverage" (a real screen, but no bookable coverage)
 * - `step-loading`      -> "loading" (still working; do not fail yet)
 * - any other `step-*`  -> "rendered" (e.g. `step-schedule`, or the
 *                          returning-visitor `step-review` -- do NOT assume one)
 * - no `step-*` present -> "empty" (not rendered yet)
 */
export declare function classifyAnchor(anchor: HTMLElement): AnchorState;
/**
 * Derives the analytics `provider` string from the partner script's hostname.
 */
export declare function getExternalWidgetProvider(scriptSrc: string | undefined): string;
/**
 * Drives the mount sequence for a third-party booking-widget handoff step:
 * assigns the merged config to `window[configGlobal]` (including the wired-up
 * success callback), appends the partner's embed script, and watches the
 * anchor for a render-timeout outcome.
 *
 * The mount sequence runs at most once per component lifetime (guarded by a
 * ref) the first time `externalWidget` is defined. If the config object is
 * later replaced with a new reference (e.g. a slower FORM_SUBMIT response
 * merging server values in after the step already rendered), the global is
 * re-assigned with the latest values but the script is not re-appended and
 * the timer is not restarted.
 */
export declare function useExternalWidget(externalWidget: ExternalWidgetConfig | undefined, options?: UseExternalWidgetOptions): {
    outcome: ExternalWidgetOutcome;
    suppressedScheduledCount: number;
};
export {};