/**
 * Factory for creating skill HTTP cache instances.
 *
 * @module skill/cache/skill-http-cache.factory
 */
import type { FrontMcpLogger } from '../../common/index.js';
import { type SkillHttpCache } from './skill-http-cache.js';
/**
 * Redis configuration options for the cache.
 *
 * Supports 'redis' (uses ioredis under the hood) and 'vercel-kv' providers.
 */
export interface SkillHttpCacheRedisOptions {
    /** Redis provider type */
    provider: 'redis' | 'vercel-kv' | '@vercel/kv';
    /** Redis host */
    host?: string;
    /** Redis port */
    port?: number;
    /** Redis password */
    password?: string;
    /** Redis database number */
    db?: number;
}
/**
 * Options for creating a skill HTTP cache.
 */
export interface SkillHttpCacheOptions {
    /**
     * Redis configuration for distributed caching.
     * If not provided, falls back to memory cache.
     */
    redis?: SkillHttpCacheRedisOptions;
    /**
     * Cache TTL in milliseconds.
     * @default 60000 (1 minute)
     */
    ttlMs?: number;
    /**
     * Key prefix for Redis cache.
     * @default 'frontmcp:skills:cache:'
     */
    keyPrefix?: string;
    /**
     * Optional logger for cache operations.
     */
    logger?: FrontMcpLogger;
}
/**
 * Result of creating a skill HTTP cache.
 */
export interface SkillHttpCacheResult {
    /** The cache instance */
    cache: SkillHttpCache;
    /** The cache type that was created */
    type: 'memory' | 'redis';
}
/**
 * Create a skill HTTP cache from configuration.
 *
 * If Redis configuration is provided, creates a Redis-backed cache.
 * Otherwise, falls back to an in-memory cache.
 *
 * @param options - Cache configuration
 * @returns Cache instance and type
 *
 * @example Memory cache (default)
 * ```typescript
 * const { cache, type } = await createSkillHttpCache({ ttlMs: 30000 });
 * // type === 'memory'
 * ```
 *
 * @example Redis cache
 * ```typescript
 * const { cache, type } = await createSkillHttpCache({
 *   redis: { provider: 'redis', host: 'localhost', port: 6379 },
 *   ttlMs: 60000,
 * });
 * // type === 'redis'
 * ```
 */
export declare function createSkillHttpCache(options?: SkillHttpCacheOptions): Promise<SkillHttpCacheResult>;
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