export interface SheetRow {
    [key: string]: any;
}
export interface SheetSchema {
    name: string;
    type: string;
}
export interface SheetMetadata {
    spreadsheetId: string;
    sheetName: string;
    rowCount: number;
    columnCount: number;
}
export interface AuthConfig {
    backendUrl?: string;
    storageKey?: string;
    userIdKey?: string;
}
export interface SheetPickerConfig {
    jwt: string;
    onSuccess?: (result: {
        spreadsheetId: string;
        sheetName: string;
    }) => void;
    onCancel?: () => void;
    width?: number;
    height?: number;
}
/**
 * LiveSheetsAuth - Helper class for OAuth authentication
 */
export declare class LiveSheetsAuth {
    private static readonly DEFAULT_BACKEND_URL;
    private static readonly DEFAULT_JWT_KEY;
    private static readonly DEFAULT_USER_KEY;
    private backendUrl;
    private jwtKey;
    private userIdKey;
    constructor(config?: AuthConfig);
    /**
     * Start OAuth flow
     * @param returnUrl - Optional return URL after OAuth completion
     */
    startOAuth(returnUrl?: string): void;
    /**
     * Get JWT from storage or URL hash
     */
    getJWT(): string | null;
    /**
     * Check if user is authenticated
     */
    isAuthenticated(): boolean;
    /**
     * Clear authentication data
     */
    logout(): void;
    /**
     * Get or generate user ID
     */
    private getUserId;
}
/**
 * LiveSheetsClient SDK
 *
 * Example usage:
 *
 *   import { LiveSheetsClient } from "livesheets-sdk";
 *   const client = new LiveSheetsClient("<your_jwt>");
 *   const rows = await client.listRows();
 *   const schema = await client.getSchema();
 *   const metadata = await client.getMetadata();
 */
export declare class LiveSheetsClient {
    private baseUrl;
    private jwt;
    private static auth;
    constructor(jwt?: string | null, baseUrl?: string);
    /**
     * Get or create auth helper instance
     */
    static getAuth(config?: AuthConfig): LiveSheetsAuth;
    /**
     * Open sheet picker in popup window
     */
    static openSheetPicker(config: SheetPickerConfig): Promise<void>;
    private request;
    listRows(): Promise<SheetRow[]>;
    getSchema(): Promise<SheetSchema[]>;
    getMetadata(): Promise<SheetMetadata>;
}
export declare function readSheet(jwtOrParams?: string | {
    jwt?: string;
    sheetId?: string;
    sheet?: string;
}, sheetIdOrOptions?: string | {
    sheetId?: string;
    sheet?: string;
}): Promise<SheetRow[]>;
export declare const auth: LiveSheetsAuth;
export { LiveSheetsClient as livesheets };
export default LiveSheetsClient;