/**
 * Studio Manager Base
 *
 * Shared page-lifecycle plumbing for the NotebookLM "Studio" managers
 * (audio, video, data table). These managers all open a notebook page,
 * validate authentication, drive a Studio-panel artifact flow, then close
 * the page. The navigation and teardown logic is identical across them and
 * lives here; the artifact-specific flows stay in each subclass.
 *
 * Behavior is preserved exactly:
 *   - navigateToNotebook: getOrCreateContext → validateWithRetry (throws
 *     "Not authenticated. Run setup_auth first." when false) → newPage →
 *     goto(domcontentloaded) → waitForLoadState("networkidle") (errors
 *     swallowed) → per-subclass randomDelay → return page.
 *   - closePage: close the page, swallowing errors, then null the handle.
 *
 * Per-subclass differences are expressed as protected properties so that no
 * call site needs to thread arguments:
 *   - navigateDelay: video & data table use 2000–3000ms, audio uses 1500–2500ms.
 *   - logName: the log-prefix used in the swallowed close-error debug line.
 */
import type { Page } from "patchright";
import { AuthManager } from "../auth/auth-manager.js";
import { SharedContextManager } from "../session/shared-context-manager.js";
/** Opaque DOM element handle used only in `as`-casts inside page.evaluate bodies. */
export type BrowserDomElement = unknown;
/** Minimal `document` shape used inside page.evaluate bodies. Common to all managers. */
export interface BrowserDocumentContext {
    document: {
        querySelector(selector: string): BrowserDomElement | null;
        querySelectorAll(selector: string): Iterable<BrowserDomElement>;
    };
}
export declare abstract class StudioManagerBase {
    protected authManager: AuthManager;
    protected contextManager: SharedContextManager;
    protected page: Page | null;
    /**
     * Trailing delay applied after navigation settles. Video & data table use the
     * default (2000–3000ms); audio overrides to 1500–2500ms.
     */
    protected readonly navigateDelay: {
        min: number;
        max: number;
    };
    /** Log prefix used in the swallowed close-error debug line (kept per-manager). */
    protected abstract readonly logName: string;
    constructor(authManager: AuthManager, contextManager: SharedContextManager);
    /**
     * Navigate to a notebook and ensure we're on the right page
     */
    protected navigateToNotebook(notebookUrl: string): Promise<Page>;
    /**
     * Close the page if open
     */
    protected closePage(): Promise<void>;
}