/// <reference types="node" />
/// <reference types="serve-static" />

import * as chokidar from "chokidar";
import * as fs from "fs";
import * as http from "http";
import * as mm from "micromatch";
import { ServeStaticOptions } from "serve-static";

declare namespace browserSync {
    interface Options {
        /**
         * Browsersync includes a user-interface that is accessed via a separate port.
         * The UI allows to controls all devices, push sync updates and much more.
         * @default false
         */
        ui?: UIOptions | boolean | undefined;
        /**
         * Browsersync can watch your files as you work. Changes you make will either
         * be injected into the page (CSS & images) or will cause all browsers to do
         * a full-page refresh.
         * @default false
         */
        files?: string | Array<string | FileCallback | object> | undefined;
        /**
         * Specify which file events to respond to.
         * Available events: `add`, `change`, `unlink`, `addDir`, `unlinkDir`
         * @default ["change"]
         * @since 2.18.8
         */
        watchEvents?: WatchEvents | string[] | undefined;
        /**
         * Watch files automatically - this should be used as an
         * alternative to the `files` option. When this option is used, some directories
         * will be ignored automatically such as `node_modules` `bower_components` `.sass-cache`
         * `.vscode` `.git` `.idea`
         * @default false
         * @since 2.23.0
         */
        watch?: boolean | undefined;
        /**
         * Patterns for any watchers to ignore. Anything provided here
         * will end up inside `watchOptions.ignored`
         * @default []
         * @since 2.23.0
         */
        ignore?: string[] | undefined;
        /**
         * Serve an index.html file for all non-asset routes. Useful
         * when using client-routers
         * @default false
         * @since 2.23.0
         */
        single?: boolean | undefined;
        /**
         * File watching options that get passed along to [Chokidar](https://github.com/paulmillr/chokidar).
         * Check their docs for available options
         * @default undefined
         * @since 2.6.0
         */
        watchOptions?: chokidar.WatchOptions | undefined;
        /**
         * Use the built-in static server for basic HTML/JS/CSS websites.
         * @default false
         */
        server?: string | boolean | string[] | ServerOptions | undefined;
        /**
         * Proxy an EXISTING vhost. Browsersync will wrap your vhost with a proxy URL to view your site.
         * @default false
         */
        proxy?: string | ProxyOptions | undefined;
        /**
         * Use a specific port (instead of the one auto-detected by Browsersync)
         * @default 3000
         */
        port?: number | undefined;
        /**
         * Functions or actual plugins used as middleware.
         * @default false
         */
        middleware?: MiddlewareHandler | PerRouteMiddleware | Array<MiddlewareHandler | PerRouteMiddleware> | undefined;
        /**
         * Add additional directories from which static
         * files should be served. Should only be used in `proxy` or `snippet`
         * mode.
         * @default []
         * @since 2.8.0
         */
        serveStatic?: StaticOptions[] | string[] | undefined;
        /**
         * Options that are passed to the serve-static middleware
         * when you use the string[] syntax: eg: `serveStatic: ['./app']`. Please see
         * [serve-static](https://github.com/expressjs/serve-static) for details
         * @since 2.17.0
         */
        serveStaticOptions?: ServeStaticOptions | undefined;
        /**
         * Enable https for localhost development. **Note** - this is not needed for proxy
         * option as it will be inferred from your target url.
         * @default undefined
         * @since 1.3.0
         */
        https?: boolean | HttpsOptions | undefined;
        /**
         * Override http module to allow using 3rd party server modules (such as http2)
         * *Note*: these modules are not included in the Browsersync package - you need
         * to 'npm install' any that you'd like to use.
         * @default undefined
         * @since 2.18.0
         */
        httpModule?: string | undefined;
        /**
         * Current working directory
         * @since 2.23.0
         */
        cwd?: string;
        /**
         * Register callbacks via a regular option - this can be used
         * to get access the Browsersync instance in situations where you
         * cannot provide a callback via the normal API (for example, in a Gruntfile)
         *
         * **Note**: Only the `ready` callback is currently supported here.
         */
        callbacks?: CallbacksOptions;
        /**
         * Clicks, Scrolls & Form inputs on any device will be mirrored to all others.
         * clicks - Default: true
         * scroll - Default: true
         * forms - Default: {
                submit: true,
                inputs: true,
                toggles: true
            }
         */
        ghostMode?: GhostOptions | boolean | undefined;
        /**
         * Can be either "info", "debug", "warn", or "silent"
         * @default "info"
         */
        logLevel?: LogLevel | undefined;
        /**
         * Change the console logging prefix. Useful if you're creating your
         * own project based on Browsersync
         * @default "Browsersync"
         * @since 1.5.1
         */
        logPrefix?: string | undefined;
        /**
         * Whether or not to log connections
         * @default false
         */
        logConnections?: boolean | undefined;
        /**
         * Whether or not to log information about changed files
         * @default true
         */
        logFileChanges?: boolean | undefined;
        /**
         * Log the snippet to the console when you're in snippet mode (no proxy/server)
         * @default true
         * @since 1.5.2
         */
        logSnippet?: boolean | undefined;
        /**
         * You can prevent Browsersync from injecting the connection snippet
         * by passing `snippet: false`.
         * @default undefined
         */
        snippet?: boolean | undefined;
        /**
         * You can control how the snippet is injected
         * onto each page via a custom regex + function.
         * You can also provide patterns for certain urls
         * that should be ignored from the snippet injection.
         * @since 2.0.0
         */
        snippetOptions?: SnippetOptions | undefined;
        /**
         * Add additional HTML rewriting rules.
         * @since 2.4.0
         * @default false
         */
        rewriteRules?: boolean | RewriteRules[] | undefined;
        /**
         * Tunnel the Browsersync server through a random Public URL
         * @default null
         */
        tunnel?: string | boolean | undefined;
        /**
         * Some features of Browsersync (such as `xip` & `tunnel`) require an internet connection, but if you're
         * working offline, you can reduce start-up time by setting this option to `false`
         * @default undefined
         */
        online?: boolean | undefined;
        /**
         * Decide which URL to open automatically when Browsersync starts. Defaults to "local" if none set.
         * Can be `true`, `local`, `external`, `ui`, `ui-external`, `tunnel` or `false`
         * @default true
         */
        open?: OpenOptions | boolean | undefined;
        /**
         * The browser(s) to open
         * @default "default"
         */
        browser?: string | string[] | undefined;
        /**
         * Add HTTP access control (CORS) headers to assets served by Browsersync.
         * @default false
         * @since 2.16.0
         */
        cors?: boolean | undefined;
        /**
         * Requires an internet connection - useful for services such as [Typekit](https://typekit.com/)
         * as it allows you to configure domains such as `*.xip.io` in your kit settings
         * @default false
         */
        xip?: boolean | undefined;
        /**
         * ¯\_(ツ)_/¯
         * @default false
         */
        hostnameSuffix?: boolean | undefined;
        /**
         * Reload each browser when Browsersync is restarted.
         * @default false
         */
        reloadOnRestart?: boolean | undefined;
        /**
         * The small pop-over notifications in the browser are not always needed/wanted.
         * @default true
         */
        notify?: boolean | undefined;
        /**
         * scrollProportionally: false // Sync viewports to TOP position
         * @default true
         */
        scrollProportionally?: boolean | undefined;
        /**
         * How often to send scroll events
         * @default 0
         */
        scrollThrottle?: number | undefined;
        /**
         * Decide which technique should be used to restore
         * scroll position following a reload.
         * Can be `window.name` or `cookie`
         * @default "window.name"
         */
        scrollRestoreTechnique?: string | undefined;
        /**
         * Sync the scroll position of any element
         * on the page. Add any amount of CSS selectors
         * @default []
         * @since 2.9.0
         */
        scrollElements?: string[] | undefined;
        /**
         * Sync the scroll position of any element
         * on the page - where any scrolled element
         * will cause all others to match scroll position.
         * This is helpful when a breakpoint alters which element
         * is actually scrolling
         * @default []
         * @since 2.9.0
         */
        scrollElementMapping?: string[] | undefined;
        /**
         * Time, in milliseconds, to wait before
         * instructing the browser to reload/inject following a
         * file change event
         * @default 0
         */
        reloadDelay?: number | undefined;
        /**
         * Wait for a specified window of event-silence before
         * sending any reload events.
         * @default 500
         * @since 2.6.0
         */
        reloadDebounce?: number | undefined;
        /**
         * Emit only the first event during sequential time windows
         * of a specified duration.
         * @default 0
         * @since 2.13.0
         */
        reloadThrottle?: number | undefined;
        /**
         * User provided plugins
         * @default []
         * @since 2.6.0
         */
        plugins?: any[] | undefined;
        /**
         * Whether to inject changes (rather than a page refresh)
         * @default true
         */
        injectChanges?: boolean | undefined;
        /**
         * The initial path to load
         * @default null
         */
        startPath?: string | undefined | null;
        /**
         * Whether to minify the client script
         * @default true
         */
        minify?: boolean | undefined;
        /**
         * Override host detection if you know the correct IP to use
         * @default null
         */
        host?: string | undefined | null;
        /**
         * Specify a host to listen on. Use this if you want to
         * prevent binding to all interfaces.
         *
         * **Note**: When you specify this option, it overrides the 'host' option
         * @default undefined
         */
        listen?: string;
        /**
         * Support environments where dynamic hostnames are not required
         * (ie: electron)
         * @default false
         * @since 2.14.0
         */
        localOnly?: boolean | undefined;
        /**
         * Send file-change events to the browser
         * @default true
         */
        codeSync?: boolean | undefined;
        /**
         * Append timestamps to injected files
         * @default true
         */
        timestamps?: boolean | undefined;
        /**
         * When ghostMode is setup the events
         * listed here will be emitted and able to hook into.
         * @default [
         * "scroll",
         * "scroll:element",
         * "input:text",
         * "input:toggles",
         * "form:submit",
         * "form:reset",
         * "click"
         * ]
         */
        clientEvents?: string[] | undefined;
        /**
         * Alter the script path for complete control over where the Browsersync
         * Javascript is served from. Whatever you return from this function
         * will be used as the script path.
         * @default undefined
         * @since 1.5.0
         */
        scriptPath?: ((path: string) => string) | undefined;
        /**
         * Configure the Socket.IO path and namespace & domain to avoid collisions.
         * path - Default: "/browser-sync/socket.io"
         * clientPath - Default: "/browser-sync"
         * namespace - Default: "/browser-sync"
         * domain - Default: undefined
         * port - Default: undefined
         * clients.heartbeatTimeout - Default: 5000
         * @since 1.6.2
         */
        socket?: SocketOptions | undefined;
        /**
         * Configure the script domain
         * @since 2.14.0
         */
        script?: ScriptOptions | undefined;
        tagNames?: TagNamesOptions | undefined;
        /**
         * @default ["css", "png", "jpg", "jpeg", "svg", "gif", "webp", "map"]
         */
        injectFileTypes?: string[] | undefined;
        /**
         * @default false
         */
        injectNotification?: boolean | undefined;
        /**
         * @default [
         * "js",
         * "css",
         * "pdf",
         * "map",
         * "svg",
         * "ico",
         * "woff",
         * "json",
         * "eot",
         * "ttf",
         * "png",
         * "jpg",
         * "jpeg",
         * "webp",
         * "gif",
         * "mp4",
         * "mp3",
         * "3gp",
         * "ogg",
         * "ogv",
         * "webm",
         * "m4a",
         * "flv",
         * "wmv",
         * "avi",
         * "swf",
         * "scss"
         * ]
         */
        excludeFileTypes?: string[] | undefined;
    }

    type WatchEvents = "add" | "change" | "unlink" | "addDir" | "unlinkDir";

    type LogLevel = "info" | "debug" | "warn" | "silent";

    type OpenOptions = "local" | "external" | "ui" | "ui-external" | "tunnel";

    interface Hash<T> {
        [path: string]: T;
    }

    interface UIOptions {
        /** set the default port */
        port?: number | undefined;
        /** set the default weinre port */
        weinre?: {
            port?: number | undefined;
        } | undefined;
    }

    interface FileCallback {
        match?: string | string[] | undefined;
        fn: (event: string, file: string) => any;
        options?: chokidar.WatchOptions | undefined;
    }

    interface ServerOptions {
        /** set base directory */
        baseDir?: string | string[] | undefined;
        /** enable directory listing */
        directory?: boolean | undefined;
        /** set index filename */
        index?: string | undefined;
        /**
         * key-value object hash, where the key is the url to match,
         * and the value is the folder to serve (relative to your working directory)
         */
        routes?: Hash<string> | undefined;
        /** configure custom middleware */
        middleware?: Array<MiddlewareHandler | PerRouteMiddleware> | undefined;
        serveStaticOptions?: ServeStaticOptions | undefined;
    }

    interface ProxyOptions {
        target?: string | undefined;
        middleware?: MiddlewareHandler | undefined;
        ws?: boolean | undefined;
        reqHeaders?: ((config: object) => Hash<object>) | undefined;
        proxyRes?: ProxyResponseMiddleware | ProxyResponseMiddleware[] | undefined;
        proxyReq?: Array<(res: http.IncomingMessage) => void> | ((res: http.IncomingMessage) => void) | undefined;
        error?: ((err: NodeJS.ErrnoException, req: http.IncomingMessage, res: http.ServerResponse) => void) | undefined;
    }

    interface ProxyResponseMiddleware {
        (
            proxyRes: http.ServerResponse | http.IncomingMessage,
            res: http.ServerResponse,
            req: http.IncomingMessage,
        ): void;
    }

    interface HttpsOptions {
        key?: string | undefined;
        cert?: string | undefined;
    }

    interface StaticOptions {
        route: string | string[];
        dir: string | string[];
    }

    interface MiddlewareHandler {
        (req: http.IncomingMessage, res: http.ServerResponse, next: () => void): any;
    }

    interface PerRouteMiddleware {
        id?: string | undefined;
        route: string;
        handle: MiddlewareHandler;
    }

    interface CallbacksOptions {
        ready: (err: Error, bs: BrowserSyncInstance) => void;
    }

    interface GhostOptions {
        clicks?: boolean | undefined;
        scroll?: boolean | undefined;
        forms?: FormsOptions | boolean | undefined;
    }

    interface FormsOptions {
        inputs: boolean;
        submit: boolean;
        toggles: boolean;
    }

    interface SnippetOptions {
        async?: boolean | undefined;
        whitelist?: string[] | undefined;
        blacklist?: string[] | undefined;
        rule?: {
            match?: RegExp | undefined;
            fn?: ((snippet: string, match: string) => any) | undefined;
        } | undefined;
    }

    interface SocketOptions {
        path?: string | undefined;
        clientPath?: string | undefined;
        namespace?: string | undefined;
        domain?: string | undefined;
        port?: number | undefined;
        clients?: { heartbeatTimeout?: number | undefined } | undefined;
    }

    interface ScriptOptions {
        domain?: string | undefined;
    }

    interface TagNamesOptions {
        less?: string | undefined;
        scss?: string | undefined;
        css?: string | undefined;
        jpg?: string | undefined;
        jpeg?: string | undefined;
        png?: string | undefined;
        svg?: string | undefined;
        gif?: string | undefined;
        js?: string | undefined;
    }

    interface RewriteRules {
        match: RegExp;
        replace?: string | undefined;
        fn?: ((req: http.IncomingMessage, res: http.ServerResponse, match: string) => string) | undefined;
    }

    interface StreamOptions {
        once?: boolean | undefined;
        match?: mm.Pattern | mm.Pattern[] | undefined;
    }

    interface BrowserSyncStatic extends BrowserSyncInstance {
        /**
         * Start the Browsersync service. This will launch a server, proxy or start the snippet mode
         * depending on your use-case.
         */
        (config?: Options, callback?: (err: Error, bs: BrowserSyncInstance) => any): BrowserSyncInstance;
        /** */
        instances: BrowserSyncInstance[];
        /**
         * Create a Browsersync instance
         * @param name an identifier that can used for retrieval later
         */
        create(name?: string, emitter?: NodeJS.EventEmitter): BrowserSyncInstance;
        /**
         * Get a single instance by name. This is useful if you have your build scripts in separate files
         * @param name the identifier used for retrieval
         */
        get(name: string): BrowserSyncInstance;
        /**
         * Check if an instance has been created.
         * @param name the name of the instance
         */
        has(name: string): boolean;
        /**
         * Reset the state of the module.
         * (should only be needed for test environments)
         */
        reset(): void;
    }

    interface BrowserSyncInstance {
        /** the name of this instance of browser-sync */
        name: string;
        /**
         * Start the Browsersync service. This will launch a server, proxy or start the snippet mode
         * depending on your use-case.
         */
        init(config?: Options, callback?: (err: Error, bs: BrowserSyncInstance) => any): BrowserSyncInstance;
        /**
         * This method will close any running server, stop file watching & exit the current process.
         */
        exit(): void;
        /**
         * Helper method for browser notifications
         * @param message Can be a simple message such as 'Connected' or HTML
         * @param timeout How long the message will remain in the browser. @since 1.3.0
         */
        notify(message: string, timeout?: number): void;
        /**
         * Method to pause file change events
         */
        pause(): void;
        /**
         * Method to resume paused watchers
         */
        resume(): void;
        /**
         * Reload the browser
         * The reload method will inform all browsers about changed files and will either cause the browser
         * to refresh, or inject the files where possible.
         */
        reload(): void;
        /**
         * Reload a single file
         * The reload method will inform all browsers about changed files and will either cause the browser
         * to refresh, or inject the files where possible.
         */
        reload(file: string): void;
        /**
         * Reload multiple files
         * The reload method will inform all browsers about changed files and will either cause the browser
         * to refresh, or inject the files where possible.
         */
        reload(files: string[]): void;
        /**
         * The reload method will inform all browsers about changed files and will either cause the browser
         * to refresh, or inject the files where possible.
         */
        reload(options: { stream: boolean }): NodeJS.ReadWriteStream;
        /**
         * The stream method returns a transform stream and can act once or on many files.
         * @param opts Configuration for the stream method
         */
        stream(opts?: StreamOptions): NodeJS.ReadWriteStream;
        /**
         * Instance Cleanup.
         */
        cleanup(fn?: (error: NodeJS.ErrnoException, bs: BrowserSyncInstance) => void): void;
        /**
         * Register a plugin.
         * Must implement at least a 'plugin' property that returns
         * callable function.
         *
         * @method use
         * @param {object} module The object to be `required`.
         * @param {object} options The
         * @param {any} cb A callback function that will return any errors.
         */
        use(
            module: { "plugin:name"?: string | undefined; plugin: (opts: object, bs: BrowserSyncInstance) => any },
            options?: object,
            cb?: any,
        ): void;
        /**
         * Callback helper to examine what options have been set.
         * @param {string} name The key to search options map for.
         */
        getOption(name: string): any;
        /**
         * Stand alone file-watcher. Use this along with Browsersync to create your own, minimal build system
         */
        watch(
            patterns: string,
            opts?: chokidar.WatchOptions,
            fn?: (event: string, file: fs.Stats) => any,
        ): NodeJS.EventEmitter;
        /**
         * The internal Event Emitter used by the running Browsersync instance (if there is one). You can use
         * this to emit your own events, such as changed files, logging etc.
         */
        emitter: NodeJS.EventEmitter;
        /**
         * A simple true/false flag that you can use to determine if there's a currently-running Browsersync instance.
         */
        active: boolean;
        /**
         * A simple true/false flag to determine if the current instance is paused
         */
        paused: boolean;
    }
}

declare const browserSync: browserSync.BrowserSyncStatic;
export = browserSync;