import { type AtprotoProtectedResourceMetadata } from '@atcute/oauth-types';
import { CachedGetter, type GetCachedOptions } from '../utils/cached-getter.ts';
import type { Store } from '../utils/store.ts';
/** protected resource metadata cache, keyed by resource origin */
export type ProtectedResourceMetadataCache = Store<string, AtprotoProtectedResourceMetadata>;
export interface ProtectedResourceMetadataResolverOptions {
    /** metadata cache, keyed by resource origin */
    cache: ProtectedResourceMetadataCache;
    /** allow http:// resources (for development only) */
    allowHttp?: boolean;
    /** custom fetch implementation */
    fetch?: typeof globalThis.fetch;
}
/**
 * resolves OAuth protected resource metadata.
 *
 * @see {@link https://www.rfc-editor.org/rfc/rfc9728.html}
 */
export declare class ProtectedResourceMetadataResolver extends CachedGetter<string, AtprotoProtectedResourceMetadata> {
    private readonly allowHttp;
    private readonly fetch;
    constructor(options: ProtectedResourceMetadataResolverOptions);
    /**
     * resolves metadata for a protected resource (PDS).
     *
     * @param resource protected resource URL or origin
     * @param options fetch options
     * @returns validated protected resource metadata
     */
    resolve(resource: string | URL, options?: GetCachedOptions): Promise<AtprotoProtectedResourceMetadata>;
    private fetchMetadata;
}
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