import { EncryptedBlob, EncryptedBranchPlane, EncryptedScopeEntry } from './types.js';
type DiskStoreDebugWindow = {
    appendCalls: number;
    readCalls: number;
    flushCalls: number;
    totalRecordStringifyMs: number;
    totalAppendMs: number;
    totalReadMs: number;
    totalFlushMs: number;
    maxRecordStringifyMs: number;
    maxAppendMs: number;
    maxReadMs: number;
    maxFlushMs: number;
    maxBlobBytes: number;
    maxRecordBytes: number;
    maxAppendResidentBytes: number;
    maxReadBufferBytes: number;
    maxReadResidentBytes: number;
    maxFlushIndexBytes: number;
    maxAppendHeapDelta: number;
    maxAppendExternalDelta: number;
    maxAppendArrayBuffersDelta: number;
    maxReadHeapDelta: number;
    maxReadExternalDelta: number;
    maxReadArrayBuffersDelta: number;
    maxFlushHeapDelta: number;
    maxFlushExternalDelta: number;
    maxFlushArrayBuffersDelta: number;
};
export declare function enableDiskStoreDebug(enabled?: boolean): void;
export declare function takeDiskStoreDebugWindow(): DiskStoreDebugWindow;
export interface InstanceStore {
    readonly kind: "memory" | "disk";
    getScope(scopeKey: string): EncryptedScopeEntry | undefined;
    getScopeMode(scopeKey: string): "none" | "legacy" | "chunks";
    getAuxiliaryPath(name: string): string | null;
    setScope(scopeKey: string, value: EncryptedScopeEntry): void;
    deleteScope(scopeKey: string): void;
    listScopes(): string[];
    getChunk(scopeKey: string, chunkId: string): EncryptedBlob | undefined;
    setChunk(scopeKey: string, chunkId: string, blob: EncryptedBlob): void;
    listChunks(scopeKey: string): string[];
    deleteChunk(scopeKey: string, chunkId: string): void;
    clear(): void;
    exportData(): EncryptedBranchPlane;
    importData(data: EncryptedBranchPlane): void;
    view(): EncryptedBranchPlane;
    close(): void;
}
export interface DiskStoreOptions {
    baseDir: string;
    maxHotBytes?: number;
    flushEvery?: number;
}
export declare class MemoryStore implements InstanceStore {
    readonly kind: "memory";
    private data;
    getScope(scopeKey: string): EncryptedScopeEntry | undefined;
    getScopeMode(scopeKey: string): "none" | "legacy" | "chunks";
    getAuxiliaryPath(_name: string): string | null;
    setScope(scopeKey: string, value: EncryptedScopeEntry): void;
    deleteScope(scopeKey: string): void;
    listScopes(): string[];
    getChunk(scopeKey: string, chunkId: string): EncryptedBlob | undefined;
    setChunk(scopeKey: string, chunkId: string, blob: EncryptedBlob): void;
    listChunks(scopeKey: string): string[];
    deleteChunk(scopeKey: string, chunkId: string): void;
    clear(): void;
    exportData(): EncryptedBranchPlane;
    importData(data: EncryptedBranchPlane): void;
    view(): EncryptedBranchPlane;
    close(): void;
}
export declare class DiskStore implements InstanceStore {
    readonly kind: "disk";
    private readonly fs;
    private readonly path;
    private readonly baseDir;
    private readonly logPath;
    private readonly indexPath;
    private readonly flushEvery;
    private readonly hot;
    private index;
    private logFd;
    private logSize;
    private writesSinceFlush;
    constructor(options: DiskStoreOptions);
    constructor(baseDir: string, maxHotBytes?: number);
    getScope(scopeKey: string): EncryptedScopeEntry | undefined;
    getScopeMode(scopeKey: string): "none" | "legacy" | "chunks";
    getAuxiliaryPath(name: string): string | null;
    setScope(scopeKey: string, value: EncryptedScopeEntry): void;
    deleteScope(scopeKey: string): void;
    listScopes(): string[];
    getChunk(scopeKey: string, chunkId: string): EncryptedBlob | undefined;
    setChunk(scopeKey: string, chunkId: string, blob: EncryptedBlob): void;
    listChunks(scopeKey: string): string[];
    deleteChunk(scopeKey: string, chunkId: string): void;
    clear(): void;
    exportData(): EncryptedBranchPlane;
    importData(data: EncryptedBranchPlane): void;
    view(): EncryptedBranchPlane;
    close(): void;
    getHotStats(): {
        entries: number;
        usedBytes: number;
        maxBytes: number;
    };
    getIndexStats(): {
        scopes: number;
        chunks: number;
        pointers: number;
    };
    private loadIndex;
    private rebuildIndexFromLog;
    private appendRecord;
    private applyRecord;
    private flushIndex;
    private maybeFlushIndex;
    private readBlob;
    private cacheKey;
    private cacheKeyPrefix;
}
export {};