//#region src/adapters/cache.adapter.d.ts
/**
 * Cache adapter interface
 *
 * Implement this interface to enable caching for subscription/permission lookups.
 * Caching is optional but recommended for performance.
 */
interface CacheAdapter {
  /**
   * Get a value from cache
   * @returns The cached value or null if not found/expired
   */
  get<T>(key: string): Promise<T | null>;
  /**
   * Set a value in cache
   * @param key - Cache key
   * @param value - Value to cache
   * @param ttlSeconds - Time to live in seconds (optional)
   */
  set<T>(key: string, value: T, ttlSeconds?: number): Promise<void>;
  /**
   * Delete a value from cache
   */
  delete(key: string): Promise<void>;
  /**
   * Delete all values matching a pattern
   * @param pattern - Key pattern (e.g., 'sub:tenant:*')
   */
  deletePattern?(pattern: string): Promise<void>;
  /**
   * Atomically increment a numeric value
   * @returns The new value after increment
   */
  incrBy?(key: string, count: number): Promise<number>;
  /**
   * Atomically decrement a numeric value
   * @returns The new value after decrement
   */
  decrBy?(key: string, count: number): Promise<number>;
  /**
   * Check if a key exists
   */
  exists?(key: string): Promise<boolean>;
}
/**
 * Create cache keys for subscription data
 */
declare const CacheKeys: {
  readonly subscription: (subscriberId: string) => string;
  readonly plan: (planId: string) => string;
  readonly plans: () => string;
  readonly activePlans: () => string;
  readonly features: (subscriberId: string) => string;
  readonly usage: (subscriberId: string, feature: string) => string;
  readonly usageAll: (subscriberId: string) => string;
};
/**
 * No-op cache adapter for when caching is disabled
 */
declare const noopCacheAdapter: CacheAdapter;
//#endregion
export { CacheKeys as n, noopCacheAdapter as r, CacheAdapter as t };
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