/**
 * Token Cache Interface
 *
 * Abstraction for storing OAuth tokens with TTL support.
 * Implementations: MemoryCache (built in) or an explicitly activated extension.
 */
export interface TokenCacheEntry {
    token: string;
    expiresAt: number;
    scope: "preview" | "production";
    projectSlug?: string;
}
export interface TokenCache {
    get(key: string): Promise<TokenCacheEntry | null>;
    set(key: string, entry: TokenCacheEntry): Promise<void>;
    delete(key: string): Promise<void>;
    clear(): Promise<void>;
    has(key: string): Promise<boolean>;
    stats(): Promise<CacheStats>;
    close(): Promise<void>;
}
export interface CacheStats {
    hits: number;
    misses: number;
    size: number;
    type: "memory" | "extension";
}
export interface MemoryCacheOptions {
    /** Maximum number of entries. Must be between 1 and 100,000. */
    maxSize?: number;
    /** Expiry sweep interval in milliseconds. `0` disables scheduled sweeps. */
    cleanupInterval?: number;
}
export type CacheOptions = {
    type: "memory";
    options?: MemoryCacheOptions;
} | {
    /** Requires a previously registered `TokenCacheStore` extension contract. */
    type: "extension";
    options?: never;
};
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