import { Debugger } from 'debug';
import * as Puppeteer from './puppeteer';
export interface PluginOptions {
    [key: string]: any;
}
export interface PluginData {
    name: {
        [key: string]: any;
    };
    value: {
        [key: string]: any;
    };
}
export declare type PluginDependencies = Set<string>;
export declare type PluginRequirements = Set<'launch' | 'headful' | 'dataFromPlugins' | 'runLast'>;
/**
 * Base class for `puppeteer-extra` plugins.
 *
 * Provides convenience methods to avoid boilerplate.
 *
 * All common `puppeteer` browser events will be bound to
 * the plugin instance, if a respectively named class member is found.
 *
 * Please refer to the [puppeteer API documentation](https://github.com/GoogleChrome/puppeteer/blob/master/docs/api.md) as well.
 *
 * @example
 * // hello-world-plugin.js
 * const { PuppeteerExtraPlugin } = require('puppeteer-extra-plugin')
 *
 * class Plugin extends PuppeteerExtraPlugin {
 *   constructor (opts = { }) { super(opts) }
 *
 *   get name () { return 'hello-world' }
 *
 *   async onPageCreated (page) {
 *     this.debug('page created', page.url())
 *     const ua = await page.browser().userAgent()
 *     this.debug('user agent', ua)
 *   }
 * }
 *
 * module.exports = function (pluginConfig) { return new Plugin(pluginConfig) }
 *
 *
 * // foo.js
 * const puppeteer = require('puppeteer-extra')
 * puppeteer.use(require('./hello-world-plugin')())
 *
 * ;(async () => {
 *   const browser = await puppeteer.launch({headless: false})
 *   const page = await browser.newPage()
 *   await page.goto('http://example.com', {waitUntil: 'domcontentloaded'})
 *   await browser.close()
 * })()
 *
 */
export declare abstract class PuppeteerExtraPlugin {
    /** @private */
    private _debugBase;
    /** @private */
    private _opts;
    /** @private */
    private _childClassMembers;
    constructor(opts?: PluginOptions);
    /**
     * Plugin name (required).
     *
     * Convention:
     * - Package: `puppeteer-extra-plugin-anonymize-ua`
     * - Name: `anonymize-ua`
     *
     * @example
     * get name () { return 'anonymize-ua' }
     */
    get name(): string;
    /**
     * Plugin defaults (optional).
     *
     * If defined will be ([deep-](https://github.com/jonschlinkert/merge-deep))merged with the (optional) user supplied options (supplied during plugin instantiation).
     *
     * The result of merging defaults with user supplied options can be accessed through `this.opts`.
     *
     * @see [[opts]]
     *
     * @example
     * get defaults () {
     *   return {
     *     stripHeadless: true,
     *     makeWindows: true,
     *     customFn: null
     *   }
     * }
     *
     * // Users can overwrite plugin defaults during instantiation:
     * puppeteer.use(require('puppeteer-extra-plugin-foobar')({ makeWindows: false }))
     */
    get defaults(): PluginOptions;
    /**
     * Plugin requirements (optional).
     *
     * Signal certain plugin requirements to the base class and the user.
     *
     * Currently supported:
     * - `launch`
     *   - If the plugin only supports locally created browser instances (no `puppeteer.connect()`),
     *     will output a warning to the user.
     * - `headful`
     *   - If the plugin doesn't work in `headless: true` mode,
     *     will output a warning to the user.
     * - `dataFromPlugins`
     *   - In case the plugin requires data from other plugins.
     *     will enable usage of `this.getDataFromPlugins()`.
     * - `runLast`
     *   - In case the plugin prefers to run after the others.
     *     Useful when the plugin needs data from others.
     *
     * @example
     * get requirements () {
     *   return new Set(['runLast', 'dataFromPlugins'])
     * }
     */
    get requirements(): PluginRequirements;
    /**
     * Plugin dependencies (optional).
     *
     * Missing plugins will be required() by puppeteer-extra.
     *
     * @example
     * get dependencies () {
     *   return new Set(['user-preferences'])
     * }
     * // Will ensure the 'puppeteer-extra-plugin-user-preferences' plugin is loaded.
     */
    get dependencies(): PluginDependencies;
    /**
     * Plugin data (optional).
     *
     * Plugins can expose data (an array of objects), which in turn can be consumed by other plugins,
     * that list the `dataFromPlugins` requirement (by using `this.getDataFromPlugins()`).
     *
     * Convention: `[ {name: 'Any name', value: 'Any value'} ]`
     *
     * @see [[getDataFromPlugins]]
     *
     * @example
     * // plugin1.js
     * get data () {
     *   return [
     *     {
     *       name: 'userPreferences',
     *       value: { foo: 'bar' }
     *     },
     *     {
     *       name: 'userPreferences',
     *       value: { hello: 'world' }
     *     }
     *   ]
     *
     * // plugin2.js
     * get requirements () { return new Set(['dataFromPlugins']) }
     *
     * async beforeLaunch () {
     *   const prefs = this.getDataFromPlugins('userPreferences').map(d => d.value)
     *   this.debug(prefs) // => [ { foo: 'bar' }, { hello: 'world' } ]
     * }
     */
    get data(): PluginData[];
    /**
     * Access the plugin options (usually the `defaults` merged with user defined options)
     *
     * To skip the auto-merging of defaults with user supplied opts don't define a `defaults`
     * property and set the `this._opts` Object in your plugin constructor directly.
     *
     * @see [[defaults]]
     *
     * @example
     * get defaults () { return { foo: "bar" } }
     *
     * async onPageCreated (page) {
     *   this.debug(this.opts.foo) // => bar
     * }
     */
    get opts(): PluginOptions;
    /**
     *  Convenience debug logger based on the [debug] module.
     *  Will automatically namespace the logging output to the plugin package name.
     *  [debug]: https://www.npmjs.com/package/debug
     *
     *  ```bash
     *  # toggle output using environment variables
     *  DEBUG=puppeteer-extra-plugin:<plugin_name> node foo.js
     *  # to debug all the things:
     *  DEBUG=puppeteer-extra,puppeteer-extra-plugin:* node foo.js
     *  ```
     *
     * @example
     * this.debug('hello world')
     * // will output e.g. 'puppeteer-extra-plugin:anonymize-ua hello world'
     */
    get debug(): Debugger;
    /**
     * Before a new browser instance is created/launched.
     *
     * Can be used to modify the puppeteer launch options by modifying or returning them.
     *
     * Plugins using this method will be called in sequence to each
     * be able to update the launch options.
     *
     * @example
     * async beforeLaunch (options) {
     *   if (this.opts.flashPluginPath) {
     *     options.args.push(`--ppapi-flash-path=${this.opts.flashPluginPath}`)
     *   }
     * }
     *
     * @param options - Puppeteer launch options
     */
    beforeLaunch(options: any): Promise<void>;
    /**
     * After the browser has launched.
     *
     * Note: Don't assume that there will only be a single browser instance during the lifecycle of a plugin.
     * It's possible that `pupeeteer.launch` will be  called multiple times and more than one browser created.
     * In order to make the plugins as stateless as possible don't store a reference to the browser instance
     * in the plugin but rather consider alternatives.
     *
     * E.g. when using `onPageCreated` you can get a browser reference by using `page.browser()`.
     *
     * Alternatively you could expose a class method that takes a browser instance as a parameter to work with:
     *
     * ```es6
     * const fancyPlugin = require('puppeteer-extra-plugin-fancy')()
     * puppeteer.use(fancyPlugin)
     * const browser = await puppeteer.launch()
     * await fancyPlugin.killBrowser(browser)
     * ```
     *
     * @param  browser - The `puppeteer` browser instance.
     * @param  opts.options - Puppeteer launch options used.
     *
     * @example
     * async afterLaunch (browser, opts) {
     *   this.debug('browser has been launched', opts.options)
     * }
     */
    afterLaunch(browser: Puppeteer.Browser, opts?: {
        options: Puppeteer.LaunchOptions;
    }): Promise<void>;
    /**
     * Before connecting to an existing browser instance.
     *
     * Can be used to modify the puppeteer connect options by modifying or returning them.
     *
     * Plugins using this method will be called in sequence to each
     * be able to update the launch options.
     *
     * @param  {Object} options - Puppeteer connect options
     * @return {Object=}
     */
    beforeConnect(options: Puppeteer.ConnectOptions): Promise<void>;
    /**
     * After connecting to an existing browser instance.
     *
     * > Note: Don't assume that there will only be a single browser instance during the lifecycle of a plugin.
     *
     * @param browser - The `puppeteer` browser instance.
     * @param  {Object} opts
     * @param  {Object} opts.options - Puppeteer connect options used.
     *
     */
    afterConnect(browser: Puppeteer.Browser, opts?: {}): Promise<void>;
    /**
     * Called when a browser instance is available.
     *
     * This applies to both `puppeteer.launch()` and `puppeteer.connect()`.
     *
     * Convenience method created for plugins that need access to a browser instance
     * and don't mind if it has been created through `launch` or `connect`.
     *
     * > Note: Don't assume that there will only be a single browser instance during the lifecycle of a plugin.
     *
     * @param browser - The `puppeteer` browser instance.
     */
    onBrowser(browser: Puppeteer.Browser, opts: any): Promise<void>;
    /**
     * Called when a target is created, for example when a new page is opened by window.open or browser.newPage.
     *
     * > Note: This includes target creations in incognito browser contexts.
     *
     * > Note: This includes browser instances created through `.launch()` as well as `.connect()`.
     *
     * @param  {Puppeteer.Target} target
     */
    onTargetCreated(target: Puppeteer.Target): Promise<void>;
    /**
     * Same as `onTargetCreated` but prefiltered to only contain Pages, for convenience.
     *
     * > Note: This includes page creations in incognito browser contexts.
     *
     * > Note: This includes browser instances created through `.launch()` as well as `.connect()`.
     *
     * @param  {Puppeteer.Target} target
     *
     * @example
     * async onPageCreated (page) {
     *   let ua = await page.browser().userAgent()
     *   if (this.opts.stripHeadless) {
     *     ua = ua.replace('HeadlessChrome/', 'Chrome/')
     *   }
     *   this.debug('new ua', ua)
     *   await page.setUserAgent(ua)
     * }
     */
    onPageCreated(page: Puppeteer.Page): Promise<void>;
    /**
     * Called when the url of a target changes.
     *
     * > Note: This includes target changes in incognito browser contexts.
     *
     * > Note: This includes browser instances created through `.launch()` as well as `.connect()`.
     *
     * @param  {Puppeteer.Target} target
     */
    onTargetChanged(target: Puppeteer.Target): Promise<void>;
    /**
     * Called when a target is destroyed, for example when a page is closed.
     *
     * > Note: This includes target destructions in incognito browser contexts.
     *
     * > Note: This includes browser instances created through `.launch()` as well as `.connect()`.
     *
     * @param  {Puppeteer.Target} target
     */
    onTargetDestroyed(target: Puppeteer.Target): Promise<void>;
    /**
     * Called when Puppeteer gets disconnected from the Chromium instance.
     *
     * This might happen because of one of the following:
     * - Chromium is closed or crashed
     * - The `browser.disconnect` method was called
     */
    onDisconnected(): Promise<void>;
    /**
     * **Deprecated:** Since puppeteer v1.6.0 `onDisconnected` has been improved
     * and should be used instead of `onClose`.
     *
     * In puppeteer < v1.6.0 `onDisconnected` was not catching all exit scenarios.
     * In order for plugins to clean up properly (e.g. deleting temporary files)
     * the `onClose` method had been introduced.
     *
     * > Note: Might be called multiple times on exit.
     *
     * > Note: This only includes browser instances created through `.launch()`.
     */
    onClose(): Promise<void>;
    /**
     * After the plugin has been registered in `puppeteer-extra`.
     *
     * Normally right after `puppeteer.use(plugin)` is called
     */
    onPluginRegistered(): Promise<void>;
    /**
     * Helper method to retrieve `data` objects from other plugins.
     *
     * A plugin needs to state the `dataFromPlugins` requirement
     * in order to use this method. Will be mapped to `puppeteer.getPluginData`.
     *
     * @param name - Filter data by `name` property
     *
     * @see [data]
     * @see [requirements]
     */
    getDataFromPlugins(name?: string): PluginData[];
    /**
     * Will match plugin dependencies against all currently registered plugins.
     * Is being called by `puppeteer-extra` and used to require missing dependencies.
     *
     * @param  {Array<Object>} plugins
     * @return {Set} - list of missing plugin names
     *
     * @private
     */
    _getMissingDependencies(plugins: any): Set<string>;
    /**
     * Conditionally bind browser/process events to class members.
     * The idea is to reduce event binding boilerplate in plugins.
     *
     * For efficiency we make sure the plugin is using the respective event
     * by checking the child class members before registering the listener.
     *
     * @param  {<Puppeteer.Browser>} browser
     * @param  {Object} opts - Options
     * @param  {string} opts.context - Puppeteer context (launch/connect)
     * @param  {Object} [opts.options] - Puppeteer launch or connect options
     * @param  {Array<string>} [opts.defaultArgs] - The default flags that Chromium will be launched with
     *
     * @private
     */
    _bindBrowserEvents(browser: Puppeteer.Browser, opts?: any): Promise<void>;
    /**
     * @private
     */
    _onTargetCreated(target: Puppeteer.Target): Promise<void>;
    /**
     * @private
     */
    _register(prototype: any): void;
    /**
     * @private
     */
    _registerChildClassMembers(prototype: any): void;
    /**
     * @private
     */
    _hasChildClassMember(name: string): boolean;
    /**
     * @private
     */
    get _isPuppeteerExtraPlugin(): boolean;
}