import type { SpotlightMemoryEntry } from "@inupedia/spotlight-protocol";
import type { PackMemoryPaths } from "./paths.js";
export interface ExactMemoryStoreOptions {
    paths: PackMemoryPaths;
    lruMax?: number;
}
/** L0 exact cache: jsonl persistence + in-process LRU + index.json. */
export declare class ExactMemoryStore {
    private readonly paths;
    private readonly lruMax;
    private index;
    private entries;
    private lruKeys;
    constructor(options: ExactMemoryStoreOptions);
    private loadFromDisk;
    private persistIndex;
    private appendEntry;
    private touchLru;
    getExact(cacheKey: string): Promise<SpotlightMemoryEntry | null>;
    hasExact(cacheKey: string): Promise<boolean>;
    putExact(cacheKey: string, entry: SpotlightMemoryEntry): Promise<void>;
    touch(entryId: string): Promise<void>;
    listEntries(limit?: number): Promise<SpotlightMemoryEntry[]>;
    listEntriesSync(limit?: number): SpotlightMemoryEntry[];
    deleteEntry(entryId: string): Promise<boolean>;
    deleteEntrySync(entryId: string): boolean;
    deleteAll(projectId: string): Promise<number>;
    deleteAllSync(projectId: string): number;
    count(): Promise<number>;
    /** @deprecated use async count() */
    countSync(): number;
    private rewriteEntriesFile;
}
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