/**
 * Video Manager
 *
 * Manages Video Overview generation in NotebookLM notebooks.
 * Video overviews are AI-generated visual summaries of notebook content,
 * available through the Studio panel in NotebookLM.
 *
 * Selectors derived from live NotebookLM DOM inspection (Feb 2026):
 * - Studio panel is visible by default (toggle: .toggle-studio-panel-button)
 * - Tiles are DIVs with role="button" and class="create-artifact-button-container"
 * - Video tile: aria-label="Video Overview", class includes "green"
 * - Clicking tile opens a mat-dialog-container with format/style radio groups
 * - Generate button: mat-dialog-actions button.button-color--primary
 * - Artifacts appear in .artifact-library-container with .artifact-item-button
 * - Generating state: .shimmer-blue class + .rotate icon + "Generating" title
 */
import { StudioManagerBase } from "./studio-manager-base.js";
/**
 * Visual styles for video overviews (matches actual NotebookLM UI)
 */
export type VideoStyle = "auto-select" | "custom" | "classic" | "whiteboard" | "kawaii" | "anime" | "watercolour" | "retro-print" | "heritage" | "paper-craft";
/**
 * Video format/length options
 */
export type VideoFormat = "explainer" | "brief";
export interface VideoStatus {
    status: "not_started" | "generating" | "ready" | "failed" | "unknown";
    progress?: number;
    duration?: number;
}
export interface GenerateVideoResult {
    success: boolean;
    status: VideoStatus;
    error?: string;
}
export declare class VideoManager extends StudioManagerBase {
    protected readonly logName = "video-manager";
    /**
     * Ensure the Studio panel is visible (expand if collapsed).
     *
     * Live DOM inspection (Feb 2026) confirms:
     *   - Toggle button: .toggle-studio-panel-button
     *   - Tiles container: .create-artifact-button-container (present only when panel is open)
     *
     * Locale-agnostic strategy — no aria-label text matching:
     * 1. Wait for either tiles or toggle button to appear in the DOM (guards timing issues)
     * 2. If tiles are visible the panel is open — return true immediately
     * 3. If tiles absent but toggle button found, click it to open — no aria-label check needed
     */
    private ensureStudioPanelOpen;
    /**
     * Check video artifact status in the artifact library.
     *
     * Video artifacts can appear with different icons depending on state:
     * - Generating: "sync" icon (rotating), title contains "Generating Video Overview"
     * - Ready: "subscriptions" icon, title is the generated video name
     * We match by title text containing "video" to be robust across states.
     */
    private checkVideoStatusInternal;
    /**
     * Click the Video Overview tile in the Studio panel
     */
    private clickVideoTile;
    /**
     * Wait for the customise dialog to appear
     */
    private waitForDialog;
    /**
     * Select a video format in the dialog (Explainer or Brief)
     */
    private selectFormat;
    /**
     * Select a video style in the dialog carousel
     */
    private selectStyle;
    /**
     * Click the Generate button in the dialog
     */
    private clickDialogGenerate;
    /**
     * Generate a video overview for a notebook
     */
    generateVideoOverview(notebookUrl: string, style?: VideoStyle, format?: VideoFormat): Promise<GenerateVideoResult>;
    /**
     * Check the current video status for a notebook
     */
    getVideoStatus(notebookUrl: string): Promise<VideoStatus>;
}