import { CacheHandlerValue as CacheHandlerValue$1, CacheHandler } from 'next/dist/server/lib/incremental-cache';
import FileSystemCache from 'next/dist/server/lib/incremental-cache/file-system-cache';

type Revalidate = false | number;
/**
 * A set of time periods and timestamps for controlling cache behavior.
 */
type LifespanParameters = {
    /**
     * The Unix timestamp (in seconds) for when the cache entry was last modified.
     */
    readonly lastModifiedAt: number;
    /**
     * The Unix timestamp (in seconds) for when the cache entry entry becomes stale.
     * After this time, the entry is considered staled and may be used.
     */
    readonly staleAt: number;
    /**
     * The Unix timestamp (in seconds) for when the cache entry must be removed from the cache.
     * After this time, the entry is considered expired and should not be used.
     */
    readonly expireAt: number;
    /**
     * Time in seconds before the cache entry becomes stale.
     */
    readonly staleAge: number;
    /**
     * Time in seconds before the cache entry becomes expired.
     */
    readonly expireAge: number;
    /**
     * Value from Next.js revalidate option. May be false if the page has no revalidate option or the revalidate option is set to false.
     */
    readonly revalidate: Revalidate | undefined;
};
type CacheHandlerValue = CacheHandlerValue$1 & {
    /**
     * Timestamp in milliseconds when the cache entry was last modified.
     */
    lastModified: number;
    /**
     * Tags associated with the cache entry. They are used for on-demand revalidation.
     */
    tags: Readonly<string[]>;
    /**
     * The lifespan parameters for the cache entry.
     *
     * Null for pages with `fallback: false` in `getStaticPaths`.
     * Consider these pages as always fresh and never stale.
     */
    lifespan: LifespanParameters | null;
};
type FileSystemCacheContext = ConstructorParameters<typeof FileSystemCache>[0];
type CacheHandlerParametersGet = Parameters<CacheHandler['get']>;
type CacheHandlerParametersSet = Parameters<CacheHandler['set']>;
type CacheHandlerParametersRevalidateTag = Parameters<CacheHandler['revalidateTag']>;

export type { CacheHandlerValue as C, FileSystemCacheContext as F, Revalidate as R, CacheHandlerParametersGet as a, CacheHandlerParametersSet as b, CacheHandlerParametersRevalidateTag as c };