import type { AuditLog } from "./audit.js";
import type { ConsentRecord } from "./types.js";
/**
 * Manages consent persistence at .bober/medical/consent.json.
 *
 * Fail-closed: a missing or corrupt consent.json returns false/undefined —
 * the engine refuses rather than proceeding without consent.
 *
 * Depends on AuditLog to record a 'consent' entry on recordConsent().
 *
 * bober: JSON file sidecar; if multi-session concurrent access is needed,
 *        migrate to the SQLite FactStore (see src/state/facts.ts).
 */
export declare class ConsentGate {
    private readonly projectRoot;
    private readonly audit;
    constructor(projectRoot: string, audit: AuditLog);
    private path;
    /**
     * Fail-closed: missing or corrupt file returns false. Never throws.
     * Reads .bober/medical/consent.json via node:fs/promises.
     */
    hasConsent(): Promise<boolean>;
    /**
     * Returns the parsed ConsentRecord, or undefined if missing/corrupt.
     * Validates required fields — a partial/corrupt record returns undefined.
     */
    current(): Promise<ConsentRecord | undefined>;
    /**
     * Persist a ConsentRecord (mode 0600) AND append a 'consent' audit entry.
     *
     * @param record - The consent record to persist.
     * @param nowIso - INJECTED ISO 8601 timestamp — never wall-clock.
     */
    recordConsent(record: ConsentRecord, nowIso: string): Promise<void>;
}
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