import type { H3Event } from 'h3';
export type { BuildMeta, IndexNowSubmitResult, PageHashMeta } from './indexnow-shared.js';
export interface IndexNowResult {
    success: boolean;
    submitted: number;
    remaining: number;
    error?: string;
    backoff?: boolean;
}
/**
 * Submit URLs to IndexNow API with fallback on rate limit
 * Wrapper around shared implementation with runtime-specific fetch
 */
export declare function submitToIndexNow(routes: string[], config: {
    key: string;
}, siteUrl: string): Promise<{
    success: boolean;
    error?: string;
    host?: string;
}>;
export interface SyncToIndexNowOptions {
    /** Use waitUntil for background DB updates (default: false in cron, true otherwise) */
    useWaitUntil?: boolean;
}
/**
 * Submit pending pages to IndexNow
 * Queries DB for pages needing sync, submits, marks as synced
 * Implements exponential backoff on 429 rate limit errors
 */
export declare function syncToIndexNow(event: H3Event | undefined, limit?: number, options?: SyncToIndexNowOptions): Promise<IndexNowResult>;