/**
 * WhatsApp pairing service — manages Baileys sessions for QR code authentication.
 *
 * This service is separate from `@elizaos/plugin-whatsapp` because the plugin
 * initializes during runtime startup (too late for interactive QR flow).
 * Once pairing succeeds, the auth state is persisted to disk so the plugin
 * can reconnect automatically on subsequent startups.
 */
/** Validate accountId to prevent path traversal. Only allows alphanumeric, dash, underscore. */
export declare function sanitizeAccountId(raw: string): string;
export type WhatsAppPairingStatus = "idle" | "initializing" | "waiting_for_qr" | "connected" | "disconnected" | "timeout" | "error";
export interface WhatsAppPairingEvent {
    type: "whatsapp-qr" | "whatsapp-status";
    accountId: string;
    qrDataUrl?: string;
    expiresInMs?: number;
    status?: WhatsAppPairingStatus;
    phoneNumber?: string;
    error?: string;
}
export interface WhatsAppPairingOptions {
    authDir: string;
    accountId: string;
    onEvent: (event: WhatsAppPairingEvent) => void;
}
export declare class WhatsAppPairingSession {
    private socket;
    private status;
    private options;
    private qrAttempts;
    private readonly MAX_QR_ATTEMPTS;
    private restartTimer;
    constructor(options: WhatsAppPairingOptions);
    start(): Promise<void>;
    stop(): void;
    getStatus(): WhatsAppPairingStatus;
    private setStatus;
}
export declare function whatsappAuthExists(workspaceDir: string, accountId?: string): boolean;
export declare function whatsappLogout(workspaceDir: string, accountId?: string): Promise<void>;
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