/// <reference types="node" />
import { Agent } from 'https';
import { APIMethods } from './schemas/methods';
import { APIRequest } from './request';
import { ExecuteError } from '../errors';
import { CallbackService } from '../utils/callback-service';
export interface IAPIOptions {
    /**
     * Access token
     */
    token: string;
    /**
     * The return data language
     */
    language?: 'ru' | 'uk' | 'be' | 'en' | 'es' | 'fi' | 'de' | 'it';
    /**
     * HTTPS agent
     *
     * @see https://nodejs.org/api/https.html#https_class_https_agent
     */
    agent: Agent;
    /**
     * Determines how requests will be collected
     * - `sequential` - in order
     * - `parallel` - all requests are sent through execute
     * - `parallel_selected` - only the specified methods in `apiExecuteMethods`
     * are collected in `execute`, other methods as in `sequential` mode
     *
     * @defaultValue `sequential`
     */
    apiMode: 'sequential' | 'parallel' | 'parallel_selected';
    /**
     * Determines how requests will be sent
     *
     * - `sequential` - through the interval
     * - `burst` - in parallel,
     * the maximum number of requests (attention, may cause an EAI_AGAIN error)
     *
     * @defaultValue `sequential`
     */
    apiRequestMode: 'sequential' | 'burst';
    /**
     * Time to wait before re-querying
     *
     *  @defaultValue `3000`
     */
    apiWait: number;
    /**
     * Requests per second
     *
     * @defaultValue `3`
     */
    apiLimit: number;
    /**
     * VK API version
     *
     * @see https://vk.com/dev/versions
     */
    apiVersion: string;
    /**
     * Base API URL
     *
     * @defaultValue `https://api.vk.com/method`
     */
    apiBaseUrl: string;
    /**
     * The number of retries at calling
     *
     * @defaultValue `3`
     */
    apiRetryLimit: number;
    /**
     * Wait time for one request
     *
     * @defaultValue `10000`
     */
    apiTimeout: number;
    /**
     * Headers sent to the API
     *
     * @defaultValue `{ User-Agent': 'vk-io/${version} (+https://github.com/negezor/vk-io)' }`
     */
    apiHeaders: Record<string, string>;
    /**
     * Number of requests per execute
     *
     * @defaultValue `25`
     */
    apiExecuteCount: number;
    /**
     * Methods for call execute (apiMode=parallel_selected)
     *
     * @defaultValue `['messages.send']`
     */
    apiExecuteMethods: string[];
    /**
     * Methods that are not supported in execute (apiMode=parallel & apiMode=parallel_selected)
     *
     * Basically it's upload methods
     * @defaultValue ```ts
     * [
     * 'photos.save',
     * 'photos.saveWallPhoto',
     * 'photos.saveOwnerPhoto',
     * 'photos.saveMessagesPhoto',
     * 'messages.setChatPhoto',
     * 'photos.saveMarketPhoto',
     * 'photos.saveMarketAlbumPhoto',
     * 'audio.save',
     * 'docs.save',
     * 'photos.saveOwnerCoverPhoto',
     * 'stories.save',
     * 'polls.savePhoto'
     * ]
     * ```
     */
    apiExecuteUnsupportedMethods: string[];
    callbackService?: CallbackService;
}
export interface IExecuteResponse<T> {
    response: T;
    errors: ExecuteError[];
}
/**
 * Working with API methods
 */
declare class API {
    options: IAPIOptions;
    private worker;
    /**
     * Constructor
     */
    constructor(options: Partial<IAPIOptions> & {
        token: string;
    });
    /**
     * Returns custom tag
     */
    get [Symbol.toStringTag](): string;
    /**
     * Call execute method
     */
    execute<T = any>(params: Record<string, unknown> & {
        code: string;
    }): Promise<IExecuteResponse<T>>;
    /**
     * Call execute procedure
     */
    procedure<T = any>(name: string, params: object): Promise<IExecuteResponse<T>>;
    /**
     * Call raw method
     */
    call<T = any>(method: string, params: object): Promise<T>;
    /**
     * Adds request for queue
     */
    callWithRequest<T = any>(request: APIRequest): Promise<T>;
    private getWorker;
    updateWorker(): void;
}
interface API extends APIMethods {
}
export { API };