import type { IABModule } from '../../libs/iab-tcf/types';
import type { GlobalVendorList } from '../../types/iab-tcf';
/**
 * IAB configuration for offline/fallback mode GVL fetching.
 */
export interface IABFallbackConfig {
    /**
     * Whether IAB mode is enabled on the client.
     */
    enabled: boolean;
    /**
     * Vendor IDs to fetch from GVL endpoint.
     */
    vendorIds?: number[];
    /**
     * Pre-loaded Global Vendor List for testing or SSR.
     * When provided, skips network fetch entirely.
     */
    gvl?: GlobalVendorList;
    /**
     * Injected IAB module for GVL fetching.
     * @internal
     */
    _module?: IABModule;
}
/**
 * Configuration options for the c15t backend client
 */
export interface C15tInternalClientOptions {
    /**
     * Backend URL for API endpoints. Can be absolute or relative.
     *
     * @default '/api/c15t'
     */
    backendURL: string;
    /**
     * Additional HTTP headers to include in all API requests.
     */
    headers?: Record<string, string>;
    /**
     * A custom fetch implementation to use instead of the global fetch.
     */
    customFetch?: typeof fetch;
    /**
     * CORS mode for fetch requests.
     * @default 'cors'
     */
    corsMode?: RequestMode;
    /**
     * Global retry configuration for fetch requests.
     * Can be overridden per request in `FetchOptions`.
     * @default { maxRetries: 3, initialDelayMs: 100, backoffFactor: 2, retryableStatusCodes: [500, 502, 503, 504] }
     */
    retryConfig?: import('../types').RetryConfig;
    /**
     * Storage configuration for offline fallback
     */
    storageConfig?: import('../../libs/cookie').StorageConfig;
    /**
     * IAB configuration for offline/fallback mode.
     * When the backend is unavailable and IAB is enabled,
     * the client will fetch GVL from gvl.inth.app with these settings.
     */
    iabConfig?: IABFallbackConfig;
}