import { P1ContentClient, PRODUCTION_BASE_URL } from '@pantheon-systems/css-client';
import type { AuthMode } from '../auth/P1AuthProvider.js';
export interface P1Config {
    baseUrl: string;
    clientBaseUrl?: string;
    siteId: string;
    branchId?: string;
    authMode: AuthMode;
    enableRealtime?: boolean;
    wsBaseUrl?: string;
    enablePresence?: boolean;
    autoSaveDelay?: number;
    maxRetries?: number;
}
export { PRODUCTION_BASE_URL };
/**
 * An env var set to "" or "   " is as good as unset. Whitespace matters: a blank-but-
 * truthy branch id would slip past the `!branchId` guards downstream, and on the content
 * path it reaches `?branch=` and 404s every published page.
 *
 * Exported for the data layer's own normalization; deliberately not part of the package's
 * public surface.
 */
export declare function nonEmpty(value: string | undefined): string | undefined;
export declare function createP1Config(envSource: Record<string, string | undefined>, options?: {
    prefix?: string;
    overrides?: Partial<P1Config>;
}): P1Config;
export declare function createNextConfig(overrides?: Partial<P1Config>): P1Config;
export declare function createNextContentClient(overrides?: {
    baseUrl?: string;
    apiToken?: string;
    siteId?: string;
    branchId?: string;
}): P1ContentClient | null;