/** Matches `@charcuterie/server`'s default build-marker URL. */
export declare const DEFAULT_DEPLOYMENT_PATH = "/__charcuterie/deployment";
/** Matches `@charcuterie/server`'s default SSE URL. */
export declare const DEFAULT_DEPLOYMENT_EVENTS_PATH = "/__charcuterie/deployment/events";
export type UseDeploymentUpdateOptions = {
    deploymentPath?: string;
    deploymentEventsPath?: string;
    /** `0` disables polling. SSE is normally enough. */
    pollIntervalMs?: number;
    /** Disable when an app calls `checkForUpdate` after its own SSE reconnects. */
    isEventSourceEnabled?: boolean;
};
export type DeploymentUpdate = {
    isUpdateAvailable: boolean;
    /** Revalidate the marker now. Safe to call after an app SSE reconnects. */
    checkForUpdate: () => Promise<boolean>;
    /** Reload after the user has saved or finished their current work. */
    reload: () => void;
};
/**
 * Detects a replacement static SPA without taking control away from
 * the app. It never reloads by itself: a tab can contain unsaved
 * form state, so the app shows its own accessible update action and
 * calls `reload` only when the user is ready.
 *
 * `createStaticHandler` supplies both endpoints by default. Existing
 * app SSE can keep its one connection: set `isEventSourceEnabled` to
 * `false`, then call `checkForUpdate` in its post-reconnect callback.
 */
export declare const useDeploymentUpdate: ({ deploymentEventsPath, deploymentPath, isEventSourceEnabled, pollIntervalMs, }?: UseDeploymentUpdateOptions) => DeploymentUpdate;
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