import type { SlackCall } from "./slack-access.js";
export declare const SLACK_THREAD_STATUS_HEARTBEAT_MS = 90000;
export declare const SLACK_THREAD_LOADING_MESSAGES: readonly ["Schlepping...", "Combobulating...", "Vibing...", "Noodling...", "Percolating...", "Ruminating...", "Consulting the void...", "Asking the electrons...", "Reticulating splines...", "Consulting the rubber duck..."];
export declare const DEFAULT_SLACK_THREAD_STATUS = "is thinking\u2026";
export declare const SLACK_THREAD_SAFE_STATUSES: readonly ["is thinking…", "Reading context…", "Calling tool…", "Drafting reply…", "Checking Slack…"];
export interface SlackThreadStatusInput {
    slack: SlackCall;
    token: string;
    channelId: string;
    threadTs: string;
    status: string;
    loadingMessages?: readonly string[];
}
export declare function setSlackThreadStatus(input: SlackThreadStatusInput): Promise<void>;
export interface SlackThreadStatusManagerDeps {
    slack: SlackCall;
    getBotToken: () => string;
    formatError: (error: unknown) => string;
    setInterval?: typeof setInterval;
    clearInterval?: typeof clearInterval;
    heartbeatMs?: number;
    logger?: Pick<Console, "error">;
    maxActiveThreads?: number;
    maxConsecutiveFailures?: number;
}
export declare function normalizeSlackThreadStatus(status: string | undefined): string;
export declare class SlackThreadStatusManager {
    private readonly deps;
    private readonly active;
    constructor(deps: SlackThreadStatusManagerDeps);
    begin(channelId: string, threadTs: string, status?: string): Promise<void>;
    update(channelId: string, threadTs: string, status: string, options?: {
        startHeartbeat?: boolean;
    }): Promise<void>;
    clear(channelId: string, threadTs: string): Promise<void>;
    clearAll(): Promise<void>;
    private heartbeat;
    private evictOldestIfNeeded;
    private stopHeartbeat;
    private trySet;
}