/**
 * Consent Manager
 *
 * Tracks and manages user consent for data processing activities.
 * Implements GDPR Article 6 legal basis requirements.
 *
 * Added by Pantheon Security for enterprise compliance support.
 */
import type { ConsentRecord, ConsentPurpose, LegalBasis } from "./types.js";
/**
 * Consent Manager class
 */
export declare class ConsentManager {
    private static instance;
    private consentFile;
    private consents;
    private loaded;
    private consentVersion;
    private requireConsent;
    private constructor();
    /**
     * Get singleton instance
     */
    static getInstance(): ConsentManager;
    /**
     * Load consents from storage
     */
    private load;
    /**
     * Save consents to storage
     */
    private save;
    /**
     * Check if this is the first run (no consent recorded)
     */
    isFirstRun(): Promise<boolean>;
    /**
     * Check if consent is required for this installation
     */
    isConsentRequired(): boolean;
    /**
     * Grant consent for specified purposes
     */
    grantConsent(purposes: ConsentPurpose[], options?: {
        legalBasis?: LegalBasis;
        method?: "explicit" | "implicit" | "contractual";
        evidence?: string;
        expiresAt?: string;
    }): Promise<ConsentRecord>;
    /**
     * Revoke consent
     */
    revokeConsent(consentId: string, reason?: string): Promise<boolean>;
    /**
     * Check if consent exists for a specific purpose
     */
    hasConsent(purpose: ConsentPurpose): Promise<boolean>;
    /**
     * Get all active (non-revoked, non-expired) consents
     */
    getActiveConsents(): Promise<ConsentRecord[]>;
    /**
     * Get full consent history (for DSAR)
     */
    getConsentHistory(): Promise<ConsentRecord[]>;
    /**
     * Export consent records for DSAR
     */
    exportConsents(): Promise<string>;
    /**
     * Check if privacy notice needs to be shown (new version or first run)
     */
    needsPrivacyNotice(): Promise<boolean>;
    /**
     * Record acknowledgment of privacy notice
     */
    acknowledgePrivacyNotice(): Promise<ConsentRecord>;
    /**
     * Get consent status summary
     */
    getConsentSummary(): Promise<{
        firstRun: boolean;
        consentVersion: string;
        activeConsents: number;
        revokedConsents: number;
        purposes: Record<ConsentPurpose, boolean>;
        lastConsentDate?: string;
    }>;
    /**
     * Delete all consent records (for data erasure)
     */
    deleteAllConsents(): Promise<number>;
    /**
     * Determine appropriate legal basis for purposes
     */
    private determineLegalBasis;
    /**
     * Validate that all required consents are in place
     */
    validateConsents(): Promise<{
        valid: boolean;
        missing: ConsentPurpose[];
    }>;
}
/**
 * Get the consent manager instance
 */
export declare function getConsentManager(): ConsentManager;
/**
 * Check if this is the first run
 */
export declare function isFirstRun(): Promise<boolean>;
/**
 * Check if consent exists for a purpose
 */
export declare function hasConsent(purpose: ConsentPurpose): Promise<boolean>;
/**
 * Grant consent for purposes
 */
export declare function grantConsent(purposes: ConsentPurpose[], options?: {
    legalBasis?: LegalBasis;
    method?: "explicit" | "implicit" | "contractual";
    evidence?: string;
    expiresAt?: string;
}): Promise<ConsentRecord>;
/**
 * Revoke a consent
 */
export declare function revokeConsent(consentId: string, reason?: string): Promise<boolean>;