/**
 * Data Table Manager
 *
 * Manages Data Table extraction in NotebookLM notebooks.
 * Data Tables are structured tabular representations of information
 * extracted from notebook sources, available through the Studio panel.
 *
 * Selectors derived from live NotebookLM DOM inspection (Feb 2026):
 * - Studio panel toggle: .toggle-studio-panel-button (jslog="243457")
 * - Data table tile: icon text "table_view" inside .create-artifact-button-container[role="button"]
 *   jslog="282298" (locale-independent). Note: data-create-button-type removed by Google Feb 2026.
 * - Clicking tile immediately starts generation (no customise dialog)
 * - Generating state: .artifact-item-button.shimmer-blue with .rotate sync icon
 * - Artifact title during generation: "Generating data table…"
 * - Chat-embedded tables use standard <table><tr><th>/<td> (no <tbody>)
 */
import { StudioManagerBase } from "./studio-manager-base.js";
export interface DataTable {
    headers: string[];
    rows: string[][];
    totalRows: number;
    totalColumns: number;
}
export interface DataTableStatus {
    status: "not_started" | "generating" | "ready" | "failed" | "unknown";
    progress?: number;
}
export interface GenerateDataTableResult {
    success: boolean;
    status: DataTableStatus;
    error?: string;
}
export interface GetDataTableResult {
    success: boolean;
    table?: DataTable;
    error?: string;
}
export declare class DataTableManager extends StudioManagerBase {
    protected readonly logName = "data-table-manager";
    /**
     * Ensure the Studio panel is visible (expand if collapsed).
     *
     * Live DOM inspection (Feb 2026) confirms:
     *   - Toggle button: .toggle-studio-panel-button, aria-label="Collapse/Expand studio panel"
     *   - Tiles container: .create-artifact-button-container (visible when panel is open)
     *
     * Strategy:
     * 1. If tiles are already visible the panel is open — return true immediately
     * 2. Try the toggle button via a prioritised selector chain (guards against future renames)
     * 3. Click the button if tiles not visible — no aria-label text check (locale-agnostic)
     */
    private ensureStudioPanelOpen;
    /**
     * Check data table artifact status in the artifact library.
     * Looks for artifacts with the "table_view" icon (data table artifacts).
     */
    private checkDataTableStatusInternal;
    /**
     * Click the Data Table tile in the Studio panel.
     * This immediately triggers generation (no customise dialog).
     */
    private clickDataTableTile;
    /**
     * Click on an existing data table artifact to open/display it
     */
    private clickDataTableArtifact;
    /**
     * Generate a data table for a notebook
     */
    generateDataTable(notebookUrl: string): Promise<GenerateDataTableResult>;
    /**
     * Get an existing data table from a notebook.
     * Clicks on the data table artifact to display it, then extracts table data.
     */
    getDataTable(notebookUrl: string): Promise<GetDataTableResult>;
    /**
     * Extract structured table data from all tables on the page.
     * NotebookLM tables use <table> with direct <tr> children (no <tbody>).
     * Returns the largest table found.
     */
    private extractTableData;
    /**
     * Sanitize extracted table content through the shared response validator.
     * Each cell originates from untrusted document sources, so any prompt
     * injection / malicious content is redacted before the table is returned
     * to the calling model.
     */
    private sanitizeTable;
}