import { PackageRef } from './packageRef.js';
import type { PackageCache, HttpClient, PeerMeta } from './types.js';
export type Semver = string & {
    __semverBrand?: never;
};
export type PackageMeta = {
    name: string;
    version: string;
    dependencies?: Record<string, string>;
    peerDependencies?: Record<string, string>;
    peerDependenciesMeta?: Record<string, PeerMeta>;
};
export declare function normalizeRelative(rel: string): string;
export declare function ensureLeadingDotSlash(rel: string): string;
export declare class CdnClient {
    private cache;
    private http;
    private readonly pinMs;
    private readonly versionsIndexMs;
    private readonly metaTtlMs;
    private readonly pinCache;
    constructor(cache: PackageCache, http: HttpClient);
    baseDir(input: string | PackageRef): string;
    file(input: string | PackageRef, rel: string): string;
    packageJson(input: string | PackageRef): string;
    buildEsmUrl(pkg: string, options?: {
        target?: string;
        bundle?: boolean;
        external?: string[];
    }): string;
    resolveExactVersion(pkg: string): Promise<Semver | undefined>;
    private tryResolveFromUrls;
    fetchVersionsIndex(name: string): Promise<{
        versions: string[];
        distTags: Record<string, string> | undefined;
    } | undefined>;
    private parseVersionFromUrl;
    fetchPackageMeta(name: string, version: string): Promise<PackageMeta | undefined>;
}
//# sourceMappingURL=cdnClient.d.ts.map