/**
 * SDN Storage - IndexedDB-based local storage for SDS data
 */
import { SchemaName } from './schemas';
export interface LogSyncState {
    publisherPeerID: string;
    schema: string;
    lastSyncedSequence: number;
    lastSyncedAt: number;
}
export interface StoredRecord {
    cid: string;
    schema: string;
    peerId: string;
    timestamp: number;
    data: Uint8Array;
    signature: Uint8Array;
}
export interface QueryFilter {
    peerId?: string;
    since?: Date;
    limit?: number;
}
export declare class SDNStorage {
    private db;
    private dbName;
    private constructor();
    /**
     * Open or create the storage database
     */
    static open(dbName?: string): Promise<SDNStorage>;
    private init;
    /**
     * Store a record
     */
    store(schema: SchemaName, data: Uint8Array, peerId: string, signature: Uint8Array): Promise<string>;
    /**
     * Get a record by CID
     */
    get(schema: SchemaName, cid: string): Promise<StoredRecord | null>;
    /**
     * Query records with optional filters
     */
    query(schema: SchemaName, filter?: QueryFilter): Promise<StoredRecord[]>;
    /**
     * Delete a record by CID
     */
    delete(cid: string): Promise<void>;
    /**
     * Get record count by schema
     */
    count(schema: SchemaName): Promise<number>;
    /**
     * Get statistics for all schemas
     */
    stats(): Promise<Record<string, number>>;
    /**
     * Clear old records
     */
    garbageCollect(maxAgeMs: number): Promise<number>;
    /**
     * Close the database
     */
    close(): Promise<void>;
    /**
     * Get the last synced sequence for a (publisher, schema) pair.
     */
    getLogSyncState(publisherPeerID: string, schema: string): Promise<number>;
    /**
     * Update the last synced sequence for a (publisher, schema) pair.
     */
    setLogSyncState(publisherPeerID: string, schema: string, sequence: number): Promise<void>;
    /**
     * Delete the entire database
     */
    static deleteDatabase(dbName?: string): Promise<void>;
}
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