import type { MainToWorkerMessage, ProctoringConfig, WorkerToMainMessage } from "@a4anthony/proctorkit-types";
import { EventQueue } from "../queue/event-queue.js";
import { Uploader } from "../uploader/uploader.js";
export interface WorkerHost {
    postMessage(msg: WorkerToMainMessage): void;
    onMessage(handler: (msg: MainToWorkerMessage) => void): void;
}
export interface WorkerCoreDeps {
    queueFactory?: (sessionId: string) => EventQueue;
    uploaderFactory?: (queue: EventQueue, config: ProctoringConfig) => Uploader;
    newEventId?: () => string;
    now?: () => number;
    /** Internal test seam; never exposed through ProctoringConfig. */
    deliveryCanaryTimeoutMs?: number;
}
export declare class WorkerCore {
    private readonly host;
    private queue;
    private uploader;
    private config;
    private candidate;
    private readonly deps;
    constructor(host: WorkerHost, deps?: WorkerCoreDeps);
    private handle;
    private init;
    private emit;
    private createEvent;
    private stop;
}
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