/**
 * Durable Slack ↔ actor account links (Open SWE–style mapping).
 *
 * Stored in the LangGraph Store under `["mda_identity_links"]`, with an
 * in-memory backend for unit tests. Slack Events look up `slack:T:U` before
 * invoke and remap to the linked actor when a record exists.
 */
import { Client } from "@langchain/langgraph-sdk";
export declare const IDENTITY_LINKS_NAMESPACE: readonly ["mda_identity_links"];
export interface IdentityLinkRecord {
    userId: string;
    slackUserId: string;
    slackTeamId?: string;
    /** Fully-qualified Slack user key, e.g. `slack:T123:U456`. */
    slackKey: string;
    email?: string;
    linkedAt: string;
    source: "slack_oauth";
}
export interface IdentityLinkStore {
    getBySlackKey(slackKey: string): Promise<IdentityLinkRecord | null>;
    getByUserId(userId: string): Promise<IdentityLinkRecord | null>;
    upsert(record: IdentityLinkRecord): Promise<void>;
    removeByUserId(userId: string): Promise<void>;
}
/** In-memory store for tests (and as a process-local cache layer). */
export declare class InMemoryIdentityLinkStore implements IdentityLinkStore {
    private readonly bySlack;
    private readonly byUser;
    getBySlackKey(slackKey: string): Promise<IdentityLinkRecord | null>;
    getByUserId(userId: string): Promise<IdentityLinkRecord | null>;
    upsert(record: IdentityLinkRecord): Promise<void>;
    removeByUserId(userId: string): Promise<void>;
}
/** LangGraph Store–backed identity links. */
export declare class LangGraphIdentityLinkStore implements IdentityLinkStore {
    private readonly client;
    constructor(client: Client);
    getBySlackKey(slackKey: string): Promise<IdentityLinkRecord | null>;
    getByUserId(userId: string): Promise<IdentityLinkRecord | null>;
    upsert(record: IdentityLinkRecord): Promise<void>;
    removeByUserId(userId: string): Promise<void>;
    private getItem;
}
/** Override the process-default link store (tests). */
export declare function setIdentityLinkStore(store: IdentityLinkStore | null): void;
/** Resolve the process-default link store (in-memory until a Client is wired). */
export declare function getIdentityLinkStore(): IdentityLinkStore;
/** Build a Store-backed client when a trusted loopback credential is available. */
export declare function createLangGraphIdentityLinkStore(options?: {
    apiUrl?: string;
    apiKey?: string;
    ingressSecret?: string;
}): LangGraphIdentityLinkStore | null;
export declare function slackKeyFromParts(teamId: string, userId: string): string;
export declare function buildIdentityLinkRecord(input: {
    userId: string;
    slackUserId: string;
    slackTeamId?: string;
    email?: string;
}): IdentityLinkRecord;
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