import type { ServerResponse } from "node:http";
import type { StudioDownloadEvent, StudioDownloadJob } from "./types.js";
export declare class StudioDownloadStore {
    private readonly projectRoot;
    private readonly emitter;
    private loaded;
    private storageAvailable;
    private storageError;
    private jobs;
    private events;
    constructor(projectRoot: string);
    init(): Promise<void>;
    list(): StudioDownloadJob[];
    get(id: string): StudioDownloadJob | null;
    eventsFor(id: string): StudioDownloadEvent[];
    metrics(): {
        total: number;
        active: number;
        queued: number;
        storageAvailable: boolean;
        storageError: string | null;
    };
    installNoteJob(input: {
        noteId?: string | null;
        source?: string | null;
        version?: string | null;
        catalogUrl?: string | null;
    }): Promise<StudioDownloadJob>;
    writeEventsSSE(id: string, res: ServerResponse): void;
    private runInstall;
    private updateJob;
    private pushEvent;
    private persist;
    private downloadsDir;
    private storePath;
}