/**
 * @fileoverview BanListCache interface for the network trust system.
 *
 * Each node maintains a local cache of the active ban list, updated via
 * gossip announcements. Enforcement points (gossip, discovery, reconciliation,
 * block store) check this cache with O(1) lookups.
 *
 * @see Network Trust and Ban Mechanism spec
 */
import { HexString, PlatformID } from '@digitaldefiance/ecies-lib';
import { IBanRecord } from './banRecord';
/**
 * Interface for the local ban list cache.
 * Implementations must provide O(1) lookup for isBanned().
 *
 * @template TID - Platform ID type
 */
export interface IBanListCache<TID extends PlatformID = Uint8Array> {
    /** Check if a member is banned — must be O(1) */
    isBanned(memberId: TID): boolean;
    /** Add a verified ban record to the cache */
    addBan(record: IBanRecord<TID>): void;
    /** Remove a ban record (unban) */
    removeBan(memberId: TID): void;
    /** Get all active ban records */
    getAll(): IBanRecord<TID>[];
    /** Get a specific ban record by member ID, or null if not banned */
    getBan(memberId: TID): IBanRecord<TID> | null;
    /** Bulk load ban records (used on startup/reconnect sync) */
    loadFrom(records: IBanRecord<TID>[]): void;
    /** Number of currently banned members */
    readonly size: number;
    /**
     * Verify a ban record's BrightTrust signatures against known public keys.
     * Returns true if the record has at least `requiredSignatures` valid signatures.
     */
    verifySignatures(record: IBanRecord<TID>, brightTrustPublicKeys: Map<HexString, Uint8Array>): Promise<boolean>;
}
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