/**
 * LevelDB-backed pinner state storage.
 *
 * Replaces state.json bulk serialization with
 * individual key-value operations. Each mutation
 * is persisted immediately — no dirty flags or
 * debounced writes needed.
 *
 * Key scheme:
 *   /kn/<ipnsName>     → "" (presence = known)
 *   /tip/<ipnsName>    → CID string
 *   /app/<ipnsName>    → appId string
 *   /seen/<ipnsName>   → timestamp ms (string)
 *   /res/<ipnsName>    → timestamp ms (string)
 *   /deact/<ipnsName>  → "" (presence = deactivated)
 */
export interface PinnerStore {
    open(): Promise<void>;
    close(): Promise<void>;
    /** Add a known IPNS name. */
    addName(name: string): Promise<void>;
    /** Remove a known IPNS name and all associated
     * keys (tip, app, seen). */
    removeName(name: string): Promise<void>;
    /** Check if a name is known. */
    hasName(name: string): Promise<boolean>;
    /** All known IPNS names. */
    getNames(): Promise<Set<string>>;
    /** Set the tip CID for a name. */
    setTip(name: string, cid: string): Promise<void>;
    /** Get the tip CID for a name, or null. */
    getTip(name: string): Promise<string | null>;
    /** All tips as a Map. */
    getTips(): Promise<Map<string, string>>;
    /** Set the appId for a name. */
    setAppId(name: string, appId: string): Promise<void>;
    /** Get the appId for a name, or null. */
    getAppId(name: string): Promise<string | null>;
    /** All appId mappings as a Map. */
    getAppIds(): Promise<Map<string, string>>;
    /** Set last-seen timestamp for a name. */
    setLastSeen(name: string, ts: number): Promise<void>;
    /** Get last-seen timestamp, or null. */
    getLastSeen(name: string): Promise<number | null>;
    /** All last-seen timestamps as a Map. */
    getLastSeenAll(): Promise<Map<string, number>>;
    /** Set last-resolved timestamp for a name. */
    setLastResolved(name: string, ts: number): Promise<void>;
    /** Get last-resolved timestamp, or null. */
    getLastResolved(name: string): Promise<number | null>;
    /** All last-resolved timestamps as a Map. */
    getLastResolvedAll(): Promise<Map<string, number>>;
    /** Mark a name as deactivated (passive phase). */
    setDeactivated(name: string): Promise<void>;
    /** Clear deactivated status for a name. */
    clearDeactivated(name: string): Promise<void>;
    /** All deactivated names. */
    getDeactivatedNames(): Promise<Set<string>>;
    /** Batch-import state (for migration). */
    importState(state: {
        knownNames: string[];
        tips: Record<string, string>;
        nameToAppId?: Record<string, string>;
        lastSeenAt?: Record<string, number>;
    }): Promise<void>;
}
export declare function createPinnerStore(path: string): Promise<PinnerStore>;
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