/**
 * ID Manager for Grain Analytics
 * Generates and manages user IDs based on consent mode
 *
 * Privacy-first implementation:
 * - Cookieless mode: Daily rotating IDs (no persistence)
 * - GDPR Strict: Permanent IDs only with consent
 * - GDPR Opt-out: Permanent IDs by default
 */
export type IdMode = 'cookieless' | 'permanent';
export interface IdConfig {
    mode: IdMode;
    tenantId: string;
    useLocalStorage?: boolean;
}
/**
 * ID Manager class
 * Handles both daily rotating IDs and permanent IDs
 */
export declare class IdManager {
    private config;
    private cachedDailyId;
    private dailyIdDate;
    private dailyRandomSeed;
    private permanentId;
    constructor(config: IdConfig);
    /**
     * Generate a daily rotating ID
     * Rotates at midnight in user's local timezone
     * Provides same-day continuity without persistent tracking
     */
    generateDailyRotatingId(): string;
    /**
     * Generate or retrieve permanent user ID
     * Only used when consent is given
     */
    generatePermanentId(): string;
    /**
     * Get the current user ID based on mode
     */
    getCurrentUserId(): string;
    /**
     * Switch ID mode (e.g., when consent is granted/revoked)
     */
    setMode(mode: IdMode): void;
    /**
     * Load permanent ID from localStorage
     */
    private loadPermanentId;
    /**
     * Save permanent ID to localStorage
     */
    private savePermanentId;
    /**
     * Clear permanent ID from localStorage
     */
    private clearPermanentId;
    /**
     * Load daily random seed from sessionStorage
     */
    private loadDailySeed;
    /**
     * Save daily random seed to sessionStorage
     */
    private saveDailySeed;
    /**
     * Clear daily seed from sessionStorage
     */
    private clearDailySeed;
    /**
     * Get info about current ID for debugging
     */
    getIdInfo(): {
        mode: IdMode;
        id: string;
        isDailyRotating: boolean;
    };
}
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