/**
 * Cache configuration constants and utilities
 *
 * FIX P3-2: TTL values are now configurable via configureCacheTTL()
 * This allows backends to pass their own TTL configuration instead of using hardcoded defaults.
 *
 * @module cache-config
 */
/**
 * Current (potentially customized) Cache TTL values
 * FIX P3-2: Mutable to allow runtime configuration
 */
export declare let CACHE_TTL: {
    STANDARD: number;
};
/**
 * Current (potentially customized) Revalidation time values
 * FIX P3-2: Mutable to allow runtime configuration
 */
export declare let REVALIDATE_AFTER: {
    STANDARD: number;
    RUNTIME: number;
};
/**
 * Cache TTL configuration options
 */
export interface CacheTTLConfig {
    /** TTL for standard endpoints in seconds (default: 30 days) */
    standardTTL?: number;
    /** Revalidation time for standard endpoints in seconds (default: 1 hour) */
    standardRevalidate?: number;
    /** Revalidation time for runtime endpoints in seconds (default: 5 minutes) */
    runtimeRevalidate?: number;
}
/**
 * Configures cache TTL values at runtime
 *
 * FIX P3-2: Allows backends to pass their own TTL configuration
 * Call this during initialization before making any cache operations.
 *
 * @param config - TTL configuration options
 *
 * @example
 * ```typescript
 * import { configureCacheTTL } from '@contiva/sap-integration-suite-client';
 *
 * // Use backend's configured TTL values
 * configureCacheTTL({
 *   standardTTL: parseInt(process.env.CACHE_TTL_SECONDS, 10) || 2592000,
 *   standardRevalidate: parseInt(process.env.CACHE_REVALIDATE_SECONDS, 10) || 3600,
 *   runtimeRevalidate: parseInt(process.env.CACHE_RUNTIME_REVALIDATE_SECONDS, 10) || 300,
 * });
 * ```
 */
export declare function configureCacheTTL(config: CacheTTLConfig): void;
/**
 * Resets cache TTL values to defaults
 * Useful for testing or when reconfiguration is needed
 */
export declare function resetCacheTTL(): void;
/**
 * Gets current TTL configuration (for debugging/logging)
 */
export declare function getCacheTTLConfig(): {
    ttl: typeof CACHE_TTL;
    revalidate: typeof REVALIDATE_AFTER;
};
/**
 * Background revalidation timeout in milliseconds
 * Increased from 5s to 30s to allow queue processing more time to complete
 */
export declare const REVALIDATION_TIMEOUT_MS = 30000;
/**
 * Checks if a URL should be cached
 *
 * @param url - The URL to check
 * @returns true if the URL is cacheable, false otherwise
 */
export declare function isCacheableUrl(url: string): boolean;
/**
 * Determines if a URL is a runtime API that needs shorter revalidation
 *
 * @param url - The URL to check
 * @returns true if it's a runtime API, false otherwise
 */
export declare function isRuntimeApi(url: string): boolean;
/**
 * Gets the appropriate revalidation time for a URL
 *
 * @param url - The URL to get revalidation time for
 * @returns Revalidation time in seconds
 */
export declare function getRevalidationTime(url: string): number;