/**
 * Runtime Configuration Service
 *
 * Provides runtime configuration fetched from the server.
 * This allows the application to use environment variables set at deployment
 * time rather than build time.
 */
export interface RuntimeConfig {
    /** Base URL for the FlowDrop API */
    apiBaseUrl: string;
    /** Theme preference */
    theme: 'light' | 'dark' | 'auto';
    /** Request timeout in milliseconds */
    timeout: number;
    /** Authentication type */
    authType: 'none' | 'bearer' | 'api_key' | 'custom';
    /** Authentication token */
    authToken?: string;
    /** Application version */
    version: string;
    /** Environment name */
    environment: string;
}
/**
 * Fetch runtime configuration from the server
 *
 * @param force - Force fetch even if cached
 * @returns Promise resolving to runtime configuration
 */
export declare function fetchRuntimeConfig(force?: boolean): Promise<RuntimeConfig>;
/**
 * Get runtime configuration synchronously from cache
 *
 * @returns Cached runtime configuration or null if not loaded
 */
export declare function getRuntimeConfig(): RuntimeConfig | null;
/**
 * Clear the runtime configuration cache
 */
export declare function clearRuntimeConfigCache(): void;
/**
 * Initialize runtime configuration
 * Should be called once when the application starts
 *
 * @returns Promise resolving to runtime configuration
 */
export declare function initRuntimeConfig(): Promise<RuntimeConfig>;