/**
 * Consent management for Grain Analytics v2.0
 * Privacy-first, cookieless by default
 *
 * Consent Modes:
 * - cookieless: Default mode, daily rotating IDs, no consent needed
 * - gdpr-strict: Requires explicit consent, falls back to cookieless
 * - gdpr-opt-out: Permanent IDs by default, cookieless on opt-out
 */
export type ConsentMode = 'COOKIELESS' | 'GDPR_STRICT' | 'GDPR_OPT_OUT';
export interface ConsentState {
    granted: boolean;
    categories: string[];
    timestamp: Date;
    version: string;
}
export declare const DEFAULT_CONSENT_CATEGORIES: string[];
export declare const CONSENT_VERSION = "1.0.0";
/**
 * Consent manager for handling user consent state
 * v2.0: Cookieless by default, privacy-first approach
 */
export declare class ConsentManager {
    private consentState;
    private consentMode;
    private storageKey;
    private listeners;
    constructor(tenantId: string, consentMode?: ConsentMode);
    /**
     * Load consent state from localStorage
     *
     * GDPR Compliance: localStorage only used for storing consent preferences
     * (not for tracking), which is a legitimate interest for compliance.
     */
    private loadConsentState;
    /**
     * Save consent state to localStorage
     */
    private saveConsentState;
    /**
     * Grant consent with optional categories
     */
    grantConsent(categories?: string[]): void;
    /**
     * Revoke consent (opt-out)
     */
    revokeConsent(categories?: string[]): void;
    /**
     * Get current consent state
     */
    getConsentState(): ConsentState | null;
    /**
     * Check if user has granted consent for permanent IDs
     */
    hasConsent(category?: string): boolean;
    /**
     * Check if permanent IDs are allowed
     */
    shouldUsePermanentId(): boolean;
    /**
     * Check if we should strip query parameters from URLs
     * Query params stripped unless:
     * - Mode is gdpr-opt-out, OR
     * - Mode is gdpr-strict AND consent given
     */
    shouldStripQueryParams(): boolean;
    /**
     * Check if we can track events (always true in v2.0)
     * Even cookieless mode allows basic analytics with daily IDs
     */
    canTrack(): boolean;
    /**
     * Check if we should wait for consent before tracking
     * Only relevant for GDPR Strict mode
     */
    shouldWaitForConsent(): boolean;
    /**
     * Add consent change listener
     */
    addListener(listener: (state: ConsentState) => void): void;
    /**
     * Remove consent change listener
     */
    removeListener(listener: (state: ConsentState) => void): void;
    /**
     * Notify all listeners of consent state change
     */
    private notifyListeners;
    /**
     * Clear all consent data
     */
    clearConsent(): void;
    /**
     * Get current consent mode
     */
    getConsentMode(): ConsentMode;
    /**
     * Get ID mode based on consent state
     * Returns 'cookieless' or 'permanent' for IdManager
     */
    getIdMode(): 'cookieless' | 'permanent';
}
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