import Symbols from './symbols';
import { logging, ProxyConfig } from '../';

/**
 * Recognized browser names.
 * @enum {string}
 */
export interface IBrowser {
  CHROME: string;
  EDGE: string;
  FIREFOX: string;
  IE: string;
  INTERNET_EXPLORER: string;
  SAFARI: string;
}

/**
 * Instace of
 */
export const Browser: IBrowser;

/**
 * Common platform names. These platforms are not explicitly defined by the
 * WebDriver spec, however, their use is encouraged for interoperability.
 *
 * @enum {string}
 * @see <https://w3c.github.io/webdriver/webdriver-spec.html>
 */
export interface IPlatform {
  LINUX: string;
  MAC: string;
  WINDOWS: string;
}

export const Platform: IPlatform;

/**
 * Strategies for waiting for [document readiness] after a navigation event.
 *
 * [document readiness]: https://html.spec.whatwg.org/#current-document-readiness
 *
 * @enum {string}
 */
export interface IPageLoadStrategy {
  /**
   * Indicates WebDriver should not wait on the document readiness state after a
   * navigation event.
   */
  NONE: string;

  /**
   * Indicates WebDriver should wait for the document readiness state to
   * become "interactive" after navigation.
   */
  EAGER: string;

  /**
   * Indicates WebDriver should wait for the document readiness state to
   * be "complete" after navigation. This is the default page loading strategy.
   */
  NORMAL: string;
}

export const PageLoadStrategy: IPageLoadStrategy;

/**
 * The possible default actions a WebDriver session can take to respond to
 * unhandled user prompts (`window.alert()`, `window.confirm()`, and
 * `window.prompt()`).
 *
 * @enum {string}
 */
export interface IUserPromptHandler {
  /** All prompts should be silently accepted. */
  ACCEPT: string;
  /** All prompts should be silently dismissed. */
  DISMISS: string;
  /**
   * All prompts should be automatically accepted, but an error should be
   * returned to the next (or currently executing) WebDriver command.
   */
  ACCEPT_AND_NOTIFY: string;
  /**
   * All prompts should be automatically dismissed, but an error should be
   * returned to the next (or currently executing) WebDriver command.
   */
  DISMISS_AND_NOTIFY: string;
  /** All prompts should be left unhandled. */
  IGNORE: string;
}

export const UserPromptHandler: IUserPromptHandler;

/**
 * Common webdriver capability keys.
 * @enum {string}
 */
export interface ICapability {
  /**
   * Indicates whether a WebDriver session implicitly trusts otherwise untrusted
   * and self-signed TLS certificates during navigation.
   */
  ACCEPT_INSECURE_TLS_CERTS: string;

  /**
   * The browser name. Common browser names are defined in the
   * {@link ./capabilities.Browser Browser} enum.
   */
  BROWSER_NAME: string;

  /** Identifies the browser version. */
  BROWSER_VERSION: string;

  /**
   * Key for the logging driver logging preferences.
   */
  LOGGING_PREFS: string;

  /**
   * Defines the session's
   * {@linkplain ./capabilities.PageLoadStrategy page loading strategy}.
   */
  PAGE_LOAD_STRATEGY: string;

  /**
   * Identifies the operating system of the endpoint node. Common values
   * recognized by the most WebDriver server implementations are predefined in
   * the {@link ./capabilities.Platform Platform} enum.
   */
  PLATFORM_NAME: string;

  /**
   * Describes the proxy configuration to use for a new WebDriver session.
   */
  PROXY: string;

  /**
   * Indicates whether the remote end supports all of the window resizing and
   * positioning commands:
   *
   * -  {@linkplain ./webdriver.Window#getRect Window.getRect()}
   * -  {@linkplain ./webdriver.Window#setRect Window.setRect()}
   * -  {@linkplain ./webdriver.Window#maximize Window.maximize()}
   * -  {@linkplain ./webdriver.Window#minimize Window.minimize()}
   * -  {@linkplain ./webdriver.Window#fullscreen Window.fullscreen()}
   */
  SET_WINDOW_RECT: string;

  /**
   * Describes the {@linkplain ./capabilities.Timeouts timeouts} imposed on
   * certain session operations.
   */
  TIMEOUTS: string;

  /**
   * Defines how a WebDriver session should
   * {@linkplain ./capabilities.UserPromptHandler respond} to unhandled user
   * prompts.
   */
  UNHANDLED_PROMPT_BEHAVIOR: string;
}

/**
 * The standard WebDriver capability keys.
 */
export const Capability: ICapability;

/**
 * Describes a set of capabilities for a WebDriver session.
 */
export class Capabilities {
  // region Constructors

  /**
   * @param {(Capabilities|Map<string, ?>|Object)=} other Another set of
   *     capabilities to initialize this instance from.
   */
  constructor(other?: Capabilities|Map<string, any>|{});

  // endregion

  // region Static Methods

  /**
   * @return {!Capabilities} A basic set of capabilities for Chrome.
   */
  static chrome(): Capabilities;

  /**
   * @return {!Capabilities} A basic set of capabilities for Microsoft Edge.
   */
  static edge(): Capabilities;

  /**
   * @return {!Capabilities} A basic set of capabilities for Firefox.
   */
  static firefox(): Capabilities;

  /**
   * @return {!Capabilities} A basic set of capabilities for
   *     Internet Explorer.
   */
  static ie(): Capabilities;

  /**
   * @return {!Capabilities} A basic set of capabilities for Safari.
   */
  static safari(): Capabilities;

  // endregion

  // region Methods

  /**
   * @return {!Object<string, ?>} The JSON representation of this instance.
   *     Note, the returned object may contain nested promised values.
   * @suppress {checkTypes} Suppress [] access on a struct (state inherited from
   *     Map).
   */
  [Symbols.serialize](): {}

  /**
   * @param {string} key The capability to return.
   * @return {*} The capability with the given key, or {@code null} if it has
   *     not been set.
   */
  get(key: string): any;

  /**
   * @param {string} key The capability to check.
   * @return {boolean} Whether the specified capability is set.
   */
  has(key: string): boolean;

  /**
   * @return {!Iterator<string>} an iterator of the keys set.
   */
  keys(): IterableIterator<string>;

  /**
   * Merges another set of capabilities into this instance.
   * @param {!(Capabilities|Map<String, ?>|Object<string, ?>)} other The other
   *     set of capabilities to merge.
   * @return {!Capabilities} A self reference.
   */
  merge(other: Capabilities|Map<string, any>|{}): Capabilities;

  /**
   * Deletes an entry from this set of capabilities.
   *
   * @param {string} key the capability key to delete.
   */
  delete(key: string): boolean;

  /**
   * @param {string} key The capability key.
   * @param {*} value The capability value.
   * @return {!Capabilities} A self reference.
   * @throws {TypeError} If the `key` is not a string.
   */
  set(key: string, value: any): Capabilities;

  /**
   * Sets whether a WebDriver session should implicitly accept self-signed, or
   * other untrusted TLS certificates on navigation.
   *
   * @param {boolean} accept whether to accept insecure certs.
   * @return {!Capabilities} a self reference.
   */
  setAcceptInsecureCerts(accept: boolean): Capabilities;

  /**
   * @return {boolean} whether the session is configured to accept insecure
   *     TLS certificates.
   */
  getAcceptInsecureCerts(): boolean;

  /**
   * Sets the name of the target browser.
   *
   * @param {(Browser|string)} name the browser name.
   * @return {!Capabilities} a self reference.
   */
  setBrowserName(name: string): Capabilities;

  /**
   * @return {(string|undefined)} the configured browser name, or undefined if
   *     not set.
   */
  getBrowserName(): string|undefined;

  /**
   * Sets the desired version of the target browser.
   *
   * @param {string} version the desired version.
   * @return {!Capabilities} a self reference.
   */
  setBrowserVersion(version: string): Capabilities;

  /**
   * @return {(string|undefined)} the configured browser version, or undefined
   *     if not set.
   */
  getBrowserVersion(): string|undefined;

  /**
   * Sets the desired page loading strategy for a new WebDriver session.
   *
   * @param {PageLoadStrategy} strategy the desired strategy.
   * @return {!Capabilities} a self reference.
   */
  setPageLoadStrategy(strategy: string): Capabilities;

  /**
   * Returns the configured page load strategy.
   *
   * @return {(string|undefined)} the page load strategy.
   */
  getPageLoadStrategy(): string|undefined;

  /**
   * Sets the target platform.
   *
   * @param {(Platform|string)} platform the target platform.
   * @return {!Capabilities} a self reference.
   */
  setPlatform(platform: string): Capabilities;

  /**
   * @return {(string|undefined)} the configured platform or undefined if not
   *     set.
   */
  getPlatform(): string|undefined;

  /**
   * Sets the logging preferences. Preferences may be specified as a
   * {@link ./logging.Preferences} instance, or as a map of log-type to
   * log-level.
   * @param {!(./logging.Preferences|Object<string>)} prefs The logging
   *     preferences.
   * @return {!Capabilities} A self reference.
   */
  setLoggingPrefs(prefs: logging.Preferences|{}): Capabilities;

  /**
   * Sets the proxy configuration for this instance.
   * @param {proxy.Config} proxy The desired proxy configuration.
   * @return {!Capabilities} A self reference.
   */
  setProxy(proxy: ProxyConfig): Capabilities;

  /**
   * @return {(proxy.Config|undefined)} the configured proxy settings, or
   *     undefined if not set.
   */
  getProxy(): ProxyConfig|undefined;

  /**
   * Sets the default action to take with an unexpected alert before returning
   * an error. If unspecified, WebDriver will default to
   * {@link UserPromptHandler.DISMISS_AND_NOTIFY}.
   *
   * @param {?UserPromptHandler} behavior The way WebDriver should respond to
   *     unhandled user prompts.
   * @return {!Capabilities} A self reference.
   */
  setAlertBehavior(behavior: string): Capabilities;

  /**
   * @return {(UserPromptHandler|undefined)} the behavior pattern for responding
   *     to unhandled user prompts, or undefined if not set.
   */
  getAlertBehavior(): string|undefined;

  // endregion
}

export interface ITimeouts {
  /**
   * Defines when, in milliseconds, to interrupt a script that is being
   * {@linkplain ./webdriver.IWebDriver#executeScript evaluated}.
   */
  script?: number | undefined;

  /**
   * The timeout, in milliseconds, to apply to navigation events along with the
   * {@link PageLoadStrategy}.
   */
  pageLoad?: number | undefined;

  /**
   * The maximum amount of time, in milliseconds, to spend attempting to
   * {@linkplain ./webdriver.IWebDriver#findElement locate} an element on the
   * current page.
   */
  implicit?: number | undefined;
}