import type FavaLibMediator from '../../FavaLibMediator.mjs';
import Command from '../BaseCommand.mjs';
import type { DeviceId, DeviceInfo } from '../../interfaces/SyncTypes.mjs';
import type { PublicKey, SigningPublicKey } from '../../interfaces/CryptoLib.mjs';
export interface AddSyncDeviceData {
    deviceId: DeviceId;
    publicKey: PublicKey;
    signingPublicKey: SigningPublicKey;
    deviceInfo: DeviceInfo;
}
/**
 * Represents a command that when executed add an entry to the vault.
 */
declare class AddSyncDeviceCommand extends Command<AddSyncDeviceData> {
    /**
     * Creates a new AddSyncDeviceCommand instance.
     * @inheritdoc
     * @param data - The data of the entry to be added.
     */
    constructor(data: AddSyncDeviceData, id?: string, timestamp?: number, version?: string, fromRemote?: boolean, fromDeviceId?: DeviceId);
    /**
     * Executes the command to add a sync device
     * @inheritdoc
     * @throws {InvalidCommandError} If the command data is invalid.
     */
    execute(mediator: FavaLibMediator): Promise<void>;
    /**
     * @inheritdoc
     */
    createUndoCommand(): Command;
    /**
     * Says why the command data is unusable.
     *
     * A shape gate only, matching the tier AddEntryCommand applies to a remote
     * entry. It does **not** by itself make device enrolment safe: a well formed
     * record carrying an attacker's public keys passes every check here.
     *
     * The checks that matter are elsewhere and deliberately so. This command must
     * arrive signed by a device already in the peer list
     * (`SyncManager.verifyCommandEnvelope`), so enrolment is closed to anyone
     * merely holding a public key; and `SyncManager.addSyncDevice` pins keys on
     * first receipt, refuses a device this vault removed, and announces a
     * peer-introduced device rather than letting it arrive silently. Peer trust
     * is flat, so a peer enrolling a device is surfaced rather than blocked.
     * @returns Null when the data is usable, otherwise the reason it is not.
     */
    invalidReason(): string | null;
    /**
     * Validates the command data.
     * @returns True if the command data is valid, false otherwise.
     */
    validate(): boolean;
}
export default AddSyncDeviceCommand;