/**
 * Durable store of owner decisions (specs/2026-10-01-decision-cards.md §1).
 *
 * One JSON file under CREWLY_HOME with a monotonically increasing id
 * counter, so `D-7` is never reused. All writes are serialised and atomic.
 * Settled decisions are pruned after {@link DECISION_CONSTANTS.RESOLVED_KEEP_MS}.
 *
 * @module services/decisions/decision-store
 */
import type { OwnerDecision } from '../../types/decision.types.js';
/** Statuses still in front of the owner. */
export declare const PENDING_DECISION_STATUSES: ReadonlySet<OwnerDecision['status']>;
/**
 * Persistent decision store.
 */
export declare class DecisionStore {
    private readonly filePath;
    private readonly now;
    private data;
    private chain;
    /**
     * @param filePath - JSON file
     * @param now - Clock (tests)
     */
    constructor(filePath: string, now?: () => Date);
    /**
     * Store under a CREWLY_HOME.
     *
     * @param crewlyHome - CREWLY_HOME
     * @returns The store
     */
    static inHome(crewlyHome: string): DecisionStore;
    /**
     * Add a decision, assigning its id.
     *
     * @param draft - Decision without id/timestamps
     * @returns The stored decision
     */
    create(draft: Omit<OwnerDecision, 'id' | 'createdAt' | 'updatedAt'>): Promise<OwnerDecision>;
    /**
     * Change a decision under the write lock.
     *
     * @param id - Decision id
     * @param fn - Returns the patch, or null to leave it alone
     * @returns The updated decision, or null when missing / unchanged
     */
    update(id: string, fn: (d: OwnerDecision) => Partial<OwnerDecision> | null): Promise<OwnerDecision | null>;
    /**
     * One decision.
     *
     * @param id - Decision id
     * @returns Copy, or null
     */
    get(id: string): Promise<OwnerDecision | null>;
    /**
     * All decisions, newest first, optionally filtered.
     *
     * @param filter - Predicate
     * @returns Copies
     */
    list(filter?: (d: OwnerDecision) => boolean): Promise<OwnerDecision[]>;
    /**
     * The open decision whose card is this message (or whose thread this is).
     *
     * @param slackChannelId - Channel
     * @param ts - Card ts or thread ts
     * @returns Decision, or null
     */
    findByCard(slackChannelId: string, ts: string): Promise<OwnerDecision | null>;
    /**
     * Drop settled decisions older than the keep window.
     *
     * @returns How many were dropped
     */
    prune(): Promise<number>;
    private load;
    private save;
    private serial;
}
//# sourceMappingURL=decision-store.d.ts.map