import type { TagsBase, RecordTags } from '@credo-ts/core';
import { BaseRecord } from '@credo-ts/core';
export type ThresholdSessionStatus = 'pending' | 'complete' | 'expired' | 'failed';
export interface CollectedShare {
    /** Share index (1-based) */
    identifier: number;
    /** Base64url-encoded share data */
    data: string;
    /** DID of the participant who provided this share */
    providedBy: string;
    /** When the share was provided */
    providedAt: Date;
}
export type CustomThresholdSessionTags = TagsBase;
export type DefaultThresholdSessionTags = {
    sessionId: string;
    vaultId: string;
    docId: string;
    status: ThresholdSessionStatus;
    initiatedBy: string;
};
export type ThresholdSessionTags = RecordTags<ThresholdSessionRecord>;
export interface ThresholdSessionRecordProps {
    id?: string;
    createdAt?: Date;
    updatedAt?: Date;
    tags?: CustomThresholdSessionTags;
    sessionId: string;
    vaultId: string;
    docId: string;
    threshold: number;
    totalShares: number;
    status: ThresholdSessionStatus;
    shares: CollectedShare[];
    reconstructedCek?: string;
    initiatedBy: string;
    expiresAt?: Date;
    purpose?: string;
}
/**
 * Database record for a threshold share collection session
 *
 * Used to track the collection of Shamir secret shares
 * for threshold (t-of-n) vault decryption
 */
export declare class ThresholdSessionRecord extends BaseRecord<DefaultThresholdSessionTags, CustomThresholdSessionTags> {
    /** Unique session identifier */
    sessionId: string;
    /** Associated vault ID */
    vaultId: string;
    /** Associated document ID */
    docId: string;
    /** Minimum shares required (t) */
    threshold: number;
    /** Total shares (n) */
    totalShares: number;
    /** Current session status */
    status: ThresholdSessionStatus;
    /** Collected shares so far */
    shares: CollectedShare[];
    /** Reconstructed CEK (only set when threshold met) */
    reconstructedCek?: string;
    /** DID of the session initiator */
    initiatedBy: string;
    /** When the session expires */
    expiresAt?: Date;
    /** Purpose of this reconstruction session */
    purpose?: string;
    static readonly type = "ThresholdSessionRecord";
    readonly type = "ThresholdSessionRecord";
    constructor(props: ThresholdSessionRecordProps);
    getTags(): DefaultThresholdSessionTags & CustomThresholdSessionTags;
    /**
     * Check if threshold has been met
     */
    get isThresholdMet(): boolean;
    /**
     * Check if session has expired
     */
    get isExpired(): boolean;
    /**
     * Get number of shares still needed
     */
    get sharesNeeded(): number;
    /**
     * Check if a participant has already provided a share
     */
    hasShareFrom(participantDid: string): boolean;
    /**
     * Add a share to the collection
     */
    addShare(share: CollectedShare): void;
}