/**
 * Copyright (c) Microsoft Corporation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { EventEmitter } from 'events';
import * as types from '../types';

export type Binary = string;

export interface Channel extends EventEmitter {
}


export interface PlaywrightChannel extends Channel {
}
export type PlaywrightInitializer = {
  chromium: BrowserTypeChannel,
  firefox: BrowserTypeChannel,
  webkit: BrowserTypeChannel,
  deviceDescriptors: types.Devices,
};


export interface BrowserTypeChannel extends Channel {
  connect(params: types.ConnectOptions): Promise<BrowserChannel>;
  launch(params: types.LaunchOptions): Promise<BrowserChannel>;
  launchServer(params: types.LaunchServerOptions): Promise<BrowserServerChannel>;
  launchPersistentContext(params: { userDataDir: string } & types.LaunchOptions & types.BrowserContextOptions): Promise<BrowserContextChannel>;
}
export type BrowserTypeInitializer = {
  executablePath: string,
  name: string
};


export interface BrowserServerChannel extends Channel {
  on(event: 'close', callback: () => void): this;

  close(): Promise<void>;
  kill(): Promise<void>;
}
export type BrowserServerInitializer = {
  wsEndpoint: string,
  pid: number
};


export interface BrowserChannel extends Channel {
  on(event: 'close', callback: () => void): this;

  close(): Promise<void>;
  newContext(params: types.BrowserContextOptions): Promise<BrowserContextChannel>;

  crNewBrowserCDPSession(): Promise<CDPSessionChannel>;
  crStartTracing(params: { page?: PageChannel, path?: string, screenshots?: boolean, categories?: string[] }): Promise<void>;
  crStopTracing(): Promise<Binary>;
}
export type BrowserInitializer = {};


export interface BrowserContextChannel extends Channel {
  on(event: 'bindingCall', callback: (params: BindingCallChannel) => void): this;
  on(event: 'close', callback: () => void): this;
  on(event: 'page', callback: (params: PageChannel) => void): this;
  on(event: 'route', callback: (params: { route: RouteChannel, request: RequestChannel }) => void): this;

  addCookies(params: { cookies: types.SetNetworkCookieParam[] }): Promise<void>;
  addInitScript(params: { source: string }): Promise<void>;
  clearCookies(): Promise<void>;
  clearPermissions(): Promise<void>;
  close(): Promise<void>;
  cookies(params: { urls: string[] }): Promise<types.NetworkCookie[]>;
  exposeBinding(params: { name: string }): Promise<void>;
  grantPermissions(params: { permissions: string[], origin?: string }): Promise<void>;
  newPage(): Promise<PageChannel>;
  setDefaultNavigationTimeoutNoReply(params: { timeout: number }): void;
  setDefaultTimeoutNoReply(params: { timeout: number }): void;
  setExtraHTTPHeaders(params: { headers: types.Headers }): Promise<void>;
  setGeolocation(params: { geolocation: types.Geolocation | null }): Promise<void>;
  setHTTPCredentials(params: { httpCredentials: types.Credentials | null }): Promise<void>;
  setNetworkInterceptionEnabled(params: { enabled: boolean }): Promise<void>;
  setOffline(params: { offline: boolean }): Promise<void>;

  on(event: 'crBackgroundPage', callback: (params: PageChannel) => void): this;
  on(event: 'crServiceWorker', callback: (params: WorkerChannel) => void): this;
  crNewCDPSession(params: { page: PageChannel }): Promise<CDPSessionChannel>;
}
export type BrowserContextInitializer = {};


export interface PageChannel extends Channel {
  on(event: 'bindingCall', callback: (params: BindingCallChannel) => void): this;
  on(event: 'close', callback: () => void): this;
  on(event: 'console', callback: (params: ConsoleMessageChannel) => void): this;
  on(event: 'crash', callback: () => void): this;
  on(event: 'dialog', callback: (params: DialogChannel) => void): this;
  on(event: 'download', callback: (params: DownloadChannel) => void): this;
  on(event: 'domcontentloaded', callback: () => void): this;
  on(event: 'fileChooser', callback: (params: { element: ElementHandleChannel, isMultiple: boolean }) => void): this;
  on(event: 'frameAttached', callback: (params: FrameChannel) => void): this;
  on(event: 'frameDetached', callback: (params: FrameChannel) => void): this;
  on(event: 'frameNavigated', callback: (params: { frame: FrameChannel, url: string, name: string }) => void): this;
  on(event: 'load', callback: () => void): this;
  on(event: 'pageError', callback: (params: { error: types.Error }) => void): this;
  on(event: 'popup', callback: (params: PageChannel) => void): this;
  on(event: 'request', callback: (params: RequestChannel) => void): this;
  on(event: 'requestFailed', callback: (params: { request: RequestChannel, failureText: string | null }) => void): this;
  on(event: 'requestFinished', callback: (params: RequestChannel) => void): this;
  on(event: 'response', callback: (params: ResponseChannel) => void): this;
  on(event: 'route', callback: (params: { route: RouteChannel, request: RequestChannel }) => void): this;
  on(event: 'worker', callback: (params: WorkerChannel) => void): this;

  setDefaultNavigationTimeoutNoReply(params: { timeout: number }): void;
  setDefaultTimeoutNoReply(params: { timeout: number }): Promise<void>;
  setFileChooserInterceptedNoReply(params: { intercepted: boolean }): Promise<void>;

  addInitScript(params: { source: string }): Promise<void>;
  close(params: { runBeforeUnload?: boolean }): Promise<void>;
  emulateMedia(params: { media?: 'screen' | 'print', colorScheme?: 'dark' | 'light' | 'no-preference' }): Promise<void>;
  exposeBinding(params: { name: string }): Promise<void>;
  goBack(params: types.NavigateOptions): Promise<ResponseChannel | null>;
  goForward(params: types.NavigateOptions): Promise<ResponseChannel | null>;
  opener(): Promise<PageChannel | null>;
  reload(params: types.NavigateOptions): Promise<ResponseChannel | null>;
  screenshot(params: types.ScreenshotOptions): Promise<Binary>;
  setExtraHTTPHeaders(params: { headers: types.Headers }): Promise<void>;
  setNetworkInterceptionEnabled(params: { enabled: boolean }): Promise<void>;
  setViewportSize(params: { viewportSize: types.Size }): Promise<void>;

  // Input
  keyboardDown(params: { key: string }): Promise<void>;
  keyboardUp(params: { key: string }): Promise<void>;
  keyboardInsertText(params: { text: string }): Promise<void>;
  keyboardType(params: { text: string, delay?: number }): Promise<void>;
  keyboardPress(params: { key: string, delay?: number }): Promise<void>;
  mouseMove(params: { x: number, y: number, steps?: number }): Promise<void>;
  mouseDown(params: { button?: types.MouseButton, clickCount?: number }): Promise<void>;
  mouseUp(params: { button?: types.MouseButton, clickCount?: number }): Promise<void>;
  mouseClick(params: { x: number, y: number, delay?: number, button?: types.MouseButton, clickCount?: number }): Promise<void>;

  accessibilitySnapshot(params: { interestingOnly?: boolean, root?: ElementHandleChannel }): Promise<types.SerializedAXNode | null>;
  pdf: (params: PDFOptions) => Promise<Binary>;

  crStartJSCoverage(params: types.JSCoverageOptions): Promise<void>;
  crStopJSCoverage(): Promise<types.JSCoverageEntry[]>;
  crStartCSSCoverage(params: types.CSSCoverageOptions): Promise<void>;
  crStopCSSCoverage(): Promise<types.CSSCoverageEntry[]>;
}

export type PageInitializer = {
  mainFrame: FrameChannel,
  viewportSize: types.Size | null,
  isClosed: boolean
};

export type PageAttribution = { isPage?: boolean };

export interface FrameChannel extends Channel {
  on(event: 'loadstate', callback: (params: { add?: types.LifecycleEvent, remove?: types.LifecycleEvent }) => void): this;

  evalOnSelector(params: { selector: string; expression: string, isFunction: boolean, arg: any} & PageAttribution): Promise<any>;
  evalOnSelectorAll(params: { selector: string; expression: string, isFunction: boolean, arg: any} & PageAttribution): Promise<any>;
  addScriptTag(params: { url?: string | undefined, path?: string | undefined, content?: string | undefined, type?: string | undefined} & PageAttribution): Promise<ElementHandleChannel>;
  addStyleTag(params: { url?: string | undefined, path?: string | undefined, content?: string | undefined} & PageAttribution): Promise<ElementHandleChannel>;
  check(params: { selector: string, force?: boolean, noWaitAfter?: boolean } & types.TimeoutOptions & PageAttribution): Promise<void>;
  click(params: { selector: string, force?: boolean, noWaitAfter?: boolean } & types.PointerActionOptions & types.MouseClickOptions & types.TimeoutOptions & PageAttribution): Promise<void>;
  content(): Promise<string>;
  dblclick(params: { selector: string, force?: boolean } & types.PointerActionOptions & types.MouseMultiClickOptions & types.TimeoutOptions & PageAttribution): Promise<void>;
  dispatchEvent(params: { selector: string, type: string, eventInit: any } & types.TimeoutOptions & PageAttribution): Promise<void>;
  evaluateExpression(params: { expression: string, isFunction: boolean, arg: any} & PageAttribution): Promise<any>;
  evaluateExpressionHandle(params: { expression: string, isFunction: boolean, arg: any} & PageAttribution): Promise<JSHandleChannel>;
  fill(params: { selector: string, value: string } & types.NavigatingActionWaitOptions & PageAttribution): Promise<void>;
  focus(params: { selector: string } & types.TimeoutOptions & PageAttribution): Promise<void>;
  frameElement(): Promise<ElementHandleChannel>;
  getAttribute(params: { selector: string, name: string } & types.TimeoutOptions & PageAttribution): Promise<string | null>;
  goto(params: { url: string } & types.GotoOptions & PageAttribution): Promise<ResponseChannel | null>;
  hover(params: { selector: string, force?: boolean } & types.PointerActionOptions & types.TimeoutOptions & PageAttribution): Promise<void>;
  innerHTML(params: { selector: string } & types.TimeoutOptions & PageAttribution): Promise<string>;
  innerText(params: { selector: string } & types.TimeoutOptions & PageAttribution): Promise<string>;
  press(params: { selector: string, key: string, delay?: number, noWaitAfter?: boolean } & types.TimeoutOptions & PageAttribution): Promise<void>;
  querySelector(params: { selector: string} & PageAttribution): Promise<ElementHandleChannel | null>;
  querySelectorAll(params: { selector: string} & PageAttribution): Promise<ElementHandleChannel[]>;
  selectOption(params: { selector: string, elements?: ElementHandleChannel[], options?: types.SelectOption[] } & types.NavigatingActionWaitOptions & PageAttribution): Promise<string[]>;
  setContent(params: { html: string } & types.NavigateOptions & PageAttribution): Promise<void>;
  setInputFiles(params: { selector: string, files: { name: string, mimeType: string, buffer: Binary }[] } & types.NavigatingActionWaitOptions & PageAttribution): Promise<void>;
  textContent(params: { selector: string } & types.TimeoutOptions & PageAttribution): Promise<string | null>;
  title(): Promise<string>;
  type(params: { selector: string, text: string, delay?: number, noWaitAfter?: boolean } & types.TimeoutOptions & PageAttribution): Promise<void>;
  uncheck(params: { selector: string, force?: boolean, noWaitAfter?: boolean } & types.TimeoutOptions & PageAttribution): Promise<void>;
  waitForFunction(params: { expression: string, isFunction: boolean, arg: any } & types.WaitForFunctionOptions & PageAttribution): Promise<JSHandleChannel>;
  waitForNavigation(params: types.WaitForNavigationOptions & PageAttribution): Promise<ResponseChannel | null>;
  waitForSelector(params: { selector: string } & types.WaitForElementOptions & PageAttribution): Promise<ElementHandleChannel | null>;
}
export type FrameInitializer = {
  url: string,
  name: string,
  parentFrame: FrameChannel | null,
  loadStates: types.LifecycleEvent[],
};


export interface WorkerChannel extends Channel {
  evaluateExpression(params: { expression: string, isFunction: boolean, arg: any }): Promise<any>;
  evaluateExpressionHandle(params: { expression: string, isFunction: boolean, arg: any }): Promise<JSHandleChannel>;
}
export type WorkerInitializer = {
  url: string,
};


export interface JSHandleChannel extends Channel {
  on(event: 'previewUpdated', callback: (preview: string) => void): this;

  dispose(): Promise<void>;
  evaluateExpression(params: { expression: string, isFunction: boolean, arg: any }): Promise<any>;
  evaluateExpressionHandle(params: { expression: string, isFunction: boolean, arg: any}): Promise<JSHandleChannel>;
  getPropertyList(): Promise<{ name: string, value: JSHandleChannel}[]>;
  getProperty(params: { name: string }): Promise<JSHandleChannel>;
  jsonValue(): Promise<any>;
}
export type JSHandleInitializer = {
  preview: string,
};


export interface ElementHandleChannel extends JSHandleChannel {
  evalOnSelector(params: { selector: string; expression: string, isFunction: boolean, arg: any }): Promise<any>;
  evalOnSelectorAll(params: { selector: string; expression: string, isFunction: boolean, arg: any }): Promise<any>;
  boundingBox(): Promise<types.Rect | null>;
  check(params: { force?: boolean } & { noWaitAfter?: boolean } & types.TimeoutOptions): Promise<void>;
  click(params: { force?: boolean, noWaitAfter?: boolean } & types.PointerActionOptions & types.MouseClickOptions & types.TimeoutOptions): Promise<void>;
  contentFrame(): Promise<FrameChannel | null>;
  dblclick(params: { force?: boolean, noWaitAfter?: boolean } & types.PointerActionOptions & types.MouseMultiClickOptions & types.TimeoutOptions): Promise<void>;
  dispatchEvent(params: { type: string, eventInit: any }): Promise<void>;
  fill(params: { value: string } & types.NavigatingActionWaitOptions): Promise<void>;
  focus(): Promise<void>;
  getAttribute(params: { name: string }): Promise<string | null>;
  hover(params: { force?: boolean } & types.PointerActionOptions & types.TimeoutOptions): Promise<void>;
  innerHTML(): Promise<string>;
  innerText(): Promise<string>;
  ownerFrame(): Promise<FrameChannel | null>;
  press(params: { key: string, delay?: number } & types.TimeoutOptions & { noWaitAfter?: boolean }): Promise<void>;
  querySelector(params: { selector: string }): Promise<ElementHandleChannel | null>;
  querySelectorAll(params: { selector: string }): Promise<ElementHandleChannel[]>;
  screenshot(params: types.ElementScreenshotOptions): Promise<Binary>;
  scrollIntoViewIfNeeded(params: types.TimeoutOptions): Promise<void>;
  selectOption(params: { elements?: ElementHandleChannel[], options?: types.SelectOption[] } & types.NavigatingActionWaitOptions): string[] | Promise<string[]>;
  selectText(params: types.TimeoutOptions): Promise<void>;
  setInputFiles(params: { files: { name: string, mimeType: string, buffer: Binary }[] } & types.NavigatingActionWaitOptions): Promise<void>;
  textContent(): Promise<string | null>;
  type(params: { text: string, delay?: number, noWaitAfter?: boolean } & types.TimeoutOptions): Promise<void>;
  uncheck(params: { force?: boolean, noWaitAfter?: boolean } & types.TimeoutOptions): Promise<void>;
}


export interface RequestChannel extends Channel {
  response(): Promise<ResponseChannel | null>;
}
export type RequestInitializer = {
  frame: FrameChannel,
  url: string,
  resourceType: string,
  method: string,
  postData: string | null,
  headers: types.Headers,
  isNavigationRequest: boolean,
  redirectedFrom: RequestChannel | null,
};


export interface RouteChannel extends Channel {
  abort(params: { errorCode: string }): Promise<void>;
  continue(params: { method?: string, headers?: types.Headers, postData?: string }): Promise<void>;
  fulfill(params: {
    status?: number,
    headers?: types.Headers,
    body: string,
    isBase64: boolean,
  }): Promise<void>;
}
export type RouteInitializer = {
  request: RequestChannel,
};


export interface ResponseChannel extends Channel {
  body(): Promise<Binary>;
  finished(): Promise<Error | null>;
}
export type ResponseInitializer = {
  request: RequestChannel,
  url: string,
  status: number,
  statusText: string,
  headers: types.Headers,
};


export interface ConsoleMessageChannel extends Channel {
}
export type ConsoleMessageInitializer = {
  type: string,
  text: string,
  args: JSHandleChannel[],
  location: types.ConsoleMessageLocation,
};


export interface BindingCallChannel extends Channel {
  reject(params: { error: types.Error }): void;
  resolve(params: { result: any }): void;
}
export type BindingCallInitializer = {
  frame: FrameChannel,
  name: string,
  args: any[]
};


export interface DialogChannel extends Channel {
  accept(params: { promptText?: string }): Promise<void>;
  dismiss(): Promise<void>;
}
export type DialogInitializer = {
	type: string,
  message: string,
  defaultValue: string,
};


export interface DownloadChannel extends Channel {
  path(): Promise<string | null>;
  failure(): Promise<string | null>;
  delete(): Promise<void>;
}
export type DownloadInitializer = {
	url: string,
  suggestedFilename: string,
};


// Chromium-specific.
export interface CDPSessionChannel extends Channel {
  on(event: 'event', callback: (params: { method: string, params?: Object }) => void): this;
  on(event: 'disconnected', callback: () => void): this;

  send(params: { method: string, params?: Object }): Promise<Object>;
  detach(): Promise<void>;
}
export type CDPSessionInitializer = {};


export type PDFOptions = {
  scale?: number,
  displayHeaderFooter?: boolean,
  headerTemplate?: string,
  footerTemplate?: string,
  printBackground?: boolean,
  landscape?: boolean,
  pageRanges?: string,
  format?: string,
  width?: string,
  height?: string,
  preferCSSPageSize?: boolean,
  margin?: {top?: string, bottom?: string, left?: string, right?: string},
  path?: string,
}