import 'dart:typed_data';

import 'package:uuid/uuid.dart';
import 'package:flutter/services.dart';
import 'package:flutter/cupertino.dart';
import 'in_app_webview.dart';

var uuidGenerator = new Uuid();

typedef Future<dynamic> ListenerCallback(MethodCall call);

///This type represents a callback, added with [addJavaScriptHandler], that listens to post messages sent from JavaScript.
///
///The Android implementation uses [addJavascriptInterface](https://developer.android.com/reference/android/webkit/WebView#addJavascriptInterface(java.lang.Object,%20java.lang.String)).
///The iOS implementation uses [addScriptMessageHandler](https://developer.apple.com/documentation/webkit/wkusercontentcontroller/1537172-addscriptmessagehandler?language=objc)
///
///The JavaScript function that can be used to call the handler is `window.flutter_inappbrowser.callHandler(handlerName <String>, ...args);`, where `args` are [rest parameters](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/rest_parameters).
///The `args` will be stringified automatically using `JSON.stringify(args)` method and then they will be decoded on the Dart side.
///
///Also, a [JavaScriptHandlerCallback] can return json data to the JavaScript side.
///In this case, simply return data that you want to send and it will be automatically json encoded using [jsonEncode] from the `dart:convert` library.
typedef dynamic JavaScriptHandlerCallback(List<dynamic> arguments);

///Class representing the level of a console message.
class ConsoleMessageLevel {
  final int _value;
  const ConsoleMessageLevel._internal(this._value);
  static ConsoleMessageLevel fromValue(int value) {
    if (value >= 0 && value <= 4)
      return ConsoleMessageLevel._internal(value);
    return null;
  }
  toValue() => _value;

  static const TIP = const ConsoleMessageLevel._internal(0);
  static const LOG = const ConsoleMessageLevel._internal(1);
  static const WARNING = const ConsoleMessageLevel._internal(2);
  static const ERROR = const ConsoleMessageLevel._internal(3);
  static const DEBUG = const ConsoleMessageLevel._internal(4);
}

///Public class representing a resource response of the [InAppBrowser] WebView.
///It is used by the method [InAppBrowser.onLoadResource()].
class WebResourceResponse {

  ///A string representing the type of resource.
  String initiatorType;
  ///Resource URL.
  String url;
  ///Returns the [DOMHighResTimeStamp](https://developer.mozilla.org/en-US/docs/Web/API/DOMHighResTimeStamp) for the time a resource fetch started.
  double startTime;
  ///Returns the [DOMHighResTimeStamp](https://developer.mozilla.org/en-US/docs/Web/API/DOMHighResTimeStamp) duration to fetch a resource.
  double duration;

  WebResourceResponse(this.initiatorType, this.url, this.startTime, this.duration);

}

///Public class representing the response returned by the [onLoadResourceCustomScheme()] event of [InAppWebView].
///It allows to load a specific resource. The resource data must be encoded to `base64`.
class CustomSchemeResponse {
  ///Data enconded to 'base64'.
  String base64data;
  ///Content-Type of the data, such as `image/png`.
  String contentType;
  ///Content-Enconding of the data, such as `utf-8`.
  String contentEnconding;

  CustomSchemeResponse(this.base64data, this.contentType, {this.contentEnconding = 'utf-8'});

  Map<String, dynamic> toJson() {
    return {
      'content-type': this.contentType,
      'content-encoding': this.contentEnconding,
      'base64data': this.base64data
    };
  }
}

///Public class representing a JavaScript console message from WebCore.
///This could be a issued by a call to one of the console logging functions (e.g. console.log('...')) or a JavaScript error on the page.
///
///To receive notifications of these messages, override the [InAppBrowser.onConsoleMessage()] function.
class ConsoleMessage {

  String sourceURL = "";
  int lineNumber = 1;
  String message = "";
  ConsoleMessageLevel messageLevel = ConsoleMessageLevel.LOG;

  ConsoleMessage(this.sourceURL, this.lineNumber, this.message, this.messageLevel);
}

///WebHistory class.
///
///This class contains a snapshot of the current back/forward list for a WebView.
class WebHistory {
  List<WebHistoryItem> _list;
  ///List of all [WebHistoryItem]s.
  List<WebHistoryItem> get list => _list;
  ///Index of the current [WebHistoryItem].
  int currentIndex;

  WebHistory(this._list, this.currentIndex);
}

///WebHistoryItem class.
///
///A convenience class for accessing fields in an entry in the back/forward list of a WebView. Each WebHistoryItem is a snapshot of the requested history item.
class WebHistoryItem {
  ///Original url of this history item.
  String originalUrl;
  ///Document title of this history item.
  String title;
  ///Url of this history item.
  String url;
  ///0-based position index in the back-forward [WebHistory.list].
  int index;
  ///Position offset respect to the currentIndex of the back-forward [WebHistory.list].
  int offset;

  WebHistoryItem(this.originalUrl, this.title, this.url, this.index, this.offset);
}

///GeolocationPermissionPromptResponse class.
///
///Class used by the host application to set the Geolocation permission state for an origin during the [onGeolocationPermissionsShowPrompt] event.
class GeolocationPermissionShowPromptResponse {
  ///The origin for which permissions are set.
  String origin;
  ///Whether or not the origin should be allowed to use the Geolocation API.
  bool allow;
  ///Whether the permission should be retained beyond the lifetime of a page currently being displayed by a WebView
  bool retain;

  GeolocationPermissionShowPromptResponse(this.origin, this.allow, this.retain);

  Map<String, dynamic> toMap() {
    return {
      "origin": origin,
      "allow": allow,
      "retain": retain
    };
  }
}

///
class JsAlertResponseAction {
  final int _value;
  const JsAlertResponseAction._internal(this._value);
  toValue() => _value;

  static const CONFIRM = const JsAlertResponseAction._internal(0);
}

///
class JsAlertResponse {
  String message;
  String confirmButtonTitle;
  bool handledByClient;
  JsAlertResponseAction action;

  JsAlertResponse({this.message = "", this.handledByClient = false, this.confirmButtonTitle = "", this.action = JsAlertResponseAction.CONFIRM});

  Map<String, dynamic> toMap() {
    return {
      "message": message,
      "confirmButtonTitle": confirmButtonTitle,
      "handledByClient": handledByClient,
      "action": action?.toValue()
    };
  }
}

///
class JsConfirmResponseAction {
  final int _value;
  const JsConfirmResponseAction._internal(this._value);
  toValue() => _value;

  static const CONFIRM = const JsConfirmResponseAction._internal(0);
  static const CANCEL = const JsConfirmResponseAction._internal(1);
}

///
class JsConfirmResponse {
  String message;
  String confirmButtonTitle;
  String cancelButtonTitle;
  bool handledByClient;
  JsConfirmResponseAction action;

  JsConfirmResponse({this.message = "", this.handledByClient = false, this.confirmButtonTitle = "", this.cancelButtonTitle = "", this.action = JsConfirmResponseAction.CANCEL});

  Map<String, dynamic> toMap() {
    return {
      "message": message,
      "confirmButtonTitle": confirmButtonTitle,
      "cancelButtonTitle": cancelButtonTitle,
      "handledByClient": handledByClient,
      "action": action?.toValue()
    };
  }
}

///
class JsPromptResponseAction {
  final int _value;
  const JsPromptResponseAction._internal(this._value);
  toValue() => _value;

  static const CONFIRM = const JsPromptResponseAction._internal(0);
  static const CANCEL = const JsPromptResponseAction._internal(1);
}

///
class JsPromptResponse {
  String message;
  String defaultValue;
  String confirmButtonTitle;
  String cancelButtonTitle;
  bool handledByClient;
  String value;
  JsPromptResponseAction action;

  JsPromptResponse({this.message = "", this.defaultValue = "", this.handledByClient = false, this.confirmButtonTitle = "", this.cancelButtonTitle = "", this.value, this.action = JsPromptResponseAction.CANCEL});

  Map<String, dynamic> toMap() {
    return {
      "message": message,
      "defaultValue": defaultValue,
      "confirmButtonTitle": confirmButtonTitle,
      "cancelButtonTitle": cancelButtonTitle,
      "handledByClient": handledByClient,
      "value": value,
      "action": action?.toValue()
    };
  }
}

///
class SafeBrowsingThreat {
  final int _value;
  const SafeBrowsingThreat._internal(this._value);
  static SafeBrowsingThreat fromValue(int value) {
    if (value >= 0 && value <= 4)
      return SafeBrowsingThreat._internal(value);
    return null;
  }
  toValue() => _value;

  static const SAFE_BROWSING_THREAT_UNKNOWN = const SafeBrowsingThreat._internal(0);
  static const SAFE_BROWSING_THREAT_MALWARE = const SafeBrowsingThreat._internal(1);
  static const SAFE_BROWSING_THREAT_PHISHING = const SafeBrowsingThreat._internal(2);
  static const SAFE_BROWSING_THREAT_UNWANTED_SOFTWARE = const SafeBrowsingThreat._internal(3);
  static const SAFE_BROWSING_THREAT_BILLING = const SafeBrowsingThreat._internal(4);
}

///
class SafeBrowsingResponseAction {
  final int _value;
  const SafeBrowsingResponseAction._internal(this._value);
  toValue() => _value;

  static const BACK_TO_SAFETY = const SafeBrowsingResponseAction._internal(0);
  static const PROCEED = const SafeBrowsingResponseAction._internal(1);
  static const SHOW_INTERSTITIAL = const SafeBrowsingResponseAction._internal(2);
}

///
class SafeBrowsingResponse {
  bool report;
  SafeBrowsingResponseAction action;

  SafeBrowsingResponse({this.report = true, this.action = SafeBrowsingResponseAction.SHOW_INTERSTITIAL});

  Map<String, dynamic> toMap() {
    return {
      "report": report,
      "action": action?.toValue()
    };
  }
}

///
class HttpAuthResponseAction {
  final int _value;
  const HttpAuthResponseAction._internal(this._value);
  toValue() => _value;

  static const CANCEL = const HttpAuthResponseAction._internal(0);
  static const PROCEED = const HttpAuthResponseAction._internal(1);
  static const USE_SAVED_HTTP_AUTH_CREDENTIALS = const HttpAuthResponseAction._internal(2);
}

///
class HttpAuthResponse {
  String username;
  String password;
  bool permanentPersistence;
  HttpAuthResponseAction action;

  HttpAuthResponse({this.username = "", this.password = "", this.permanentPersistence = false, this.action = HttpAuthResponseAction.CANCEL});

  Map<String, dynamic> toMap() {
    return {
      "username": username,
      "password": password,
      "permanentPersistence": permanentPersistence,
      "action": action?.toValue()
    };
  }
}

///
class HttpAuthChallenge {
  int previousFailureCount;
  ProtectionSpace protectionSpace;

  HttpAuthChallenge({@required this.previousFailureCount, @required this.protectionSpace}): assert(previousFailureCount != null && protectionSpace != null);
}

///
class ProtectionSpace {
  String host;
  String protocol;
  String realm;
  int port;

  ProtectionSpace({@required this.host, @required this.protocol, this.realm, this.port}): assert(host != null && protocol != null);
}

///
class HttpAuthCredential {
  String username;
  String password;

  HttpAuthCredential({@required this.username, @required this.password}): assert(username != null && password != null);
}

///
class ServerTrustAuthResponseAction {
  final int _value;
  const ServerTrustAuthResponseAction._internal(this._value);
  toValue() => _value;

  static const CANCEL = const ServerTrustAuthResponseAction._internal(0);
  static const PROCEED = const ServerTrustAuthResponseAction._internal(1);
}

///
class ServerTrustAuthResponse {
  ServerTrustAuthResponseAction action;

  ServerTrustAuthResponse({this.action = ServerTrustAuthResponseAction.CANCEL});

  Map<String, dynamic> toMap() {
    return {
      "action": action?.toValue()
    };
  }
}

///
class ServerTrustChallenge {
  ProtectionSpace protectionSpace;
  int error;
  String message;
  Uint8List serverCertificate;

  ServerTrustChallenge({@required this.protectionSpace, @required this.error, this.message, this.serverCertificate}): assert(protectionSpace != null && error != null);
}

///
class ClientCertResponseAction {
  final int _value;
  const ClientCertResponseAction._internal(this._value);
  toValue() => _value;

  static const CANCEL = const ClientCertResponseAction._internal(0);
  static const PROCEED = const ClientCertResponseAction._internal(1);
  static const IGNORE = const ClientCertResponseAction._internal(2);
}

///
class ClientCertResponse {
  String certificatePath;
  String certificatePassword;
  String androidKeyStoreType;
  ClientCertResponseAction action;

  ClientCertResponse({this.certificatePath, this.certificatePassword = "", this.androidKeyStoreType = "PKCS12", this.action = ClientCertResponseAction.CANCEL}) {
    if (this.action == ClientCertResponseAction.PROCEED)
      assert(certificatePath != null && certificatePath.isNotEmpty);
  }

  Map<String, dynamic> toMap() {
    return {
      "certificatePath": certificatePath,
      "certificatePassword": certificatePassword,
      "androidKeyStoreType": androidKeyStoreType,
      "action": action?.toValue()
    };
  }
}

///
class ClientCertChallenge {
  ProtectionSpace protectionSpace;

  ClientCertChallenge({@required this.protectionSpace}): assert(protectionSpace != null);
}

///
class AndroidInAppWebViewCacheMode {
  final int _value;
  const AndroidInAppWebViewCacheMode._internal(this._value);
  toValue() => _value;

  static const LOAD_DEFAULT = const AndroidInAppWebViewCacheMode._internal(-1);
  static const LOAD_CACHE_ELSE_NETWORK = const AndroidInAppWebViewCacheMode._internal(1);
  static const LOAD_NO_CACHE = const AndroidInAppWebViewCacheMode._internal(2);
  static const LOAD_CACHE_ONLY = const AndroidInAppWebViewCacheMode._internal(3);
}

///
class AndroidInAppWebViewModeMenuItem {
  final int _value;
  const AndroidInAppWebViewModeMenuItem._internal(this._value);
  toValue() => _value;

  static const MENU_ITEM_NONE = const AndroidInAppWebViewModeMenuItem._internal(0);
  static const MENU_ITEM_SHARE = const AndroidInAppWebViewModeMenuItem._internal(1);
  static const MENU_ITEM_WEB_SEARCH = const AndroidInAppWebViewModeMenuItem._internal(2);
  static const MENU_ITEM_PROCESS_TEXT = const AndroidInAppWebViewModeMenuItem._internal(4);
}

///
class AndroidInAppWebViewForceDark {
  final int _value;
  const AndroidInAppWebViewForceDark._internal(this._value);
  toValue() => _value;

  static const FORCE_DARK_OFF = const AndroidInAppWebViewForceDark._internal(0);
  static const FORCE_DARK_AUTO = const AndroidInAppWebViewForceDark._internal(1);
  static const FORCE_DARK_ON = const AndroidInAppWebViewForceDark._internal(2);
}

///
class AndroidInAppWebViewLayoutAlgorithm {
  final String _value;
  const AndroidInAppWebViewLayoutAlgorithm._internal(this._value);
  toValue() => _value;

  static const NORMAL = const AndroidInAppWebViewLayoutAlgorithm._internal("NORMAL");
  static const TEXT_AUTOSIZING = const AndroidInAppWebViewLayoutAlgorithm._internal("TEXT_AUTOSIZING");
}

///
class AndroidInAppWebViewMixedContentMode {
  final int _value;
  const AndroidInAppWebViewMixedContentMode._internal(this._value);
  toValue() => _value;

  static const MIXED_CONTENT_ALWAYS_ALLOW = const AndroidInAppWebViewMixedContentMode._internal(0);
  static const MIXED_CONTENT_NEVER_ALLOW = const AndroidInAppWebViewMixedContentMode._internal(1);
  static const MIXED_CONTENT_COMPATIBILITY_MODE = const AndroidInAppWebViewMixedContentMode._internal(2);
}

///
class iOSInAppWebViewSelectionGranularity {
  final int _value;
  const iOSInAppWebViewSelectionGranularity._internal(this._value);
  toValue() => _value;

  static const CHARACTER = const iOSInAppWebViewSelectionGranularity._internal(0);
  static const DYNAMIC = const iOSInAppWebViewSelectionGranularity._internal(1);
}

///
class iOSInAppWebViewDataDetectorTypes {
  final String _value;
  const iOSInAppWebViewDataDetectorTypes._internal(this._value);
  toValue() => _value;

  static const NONE = const iOSInAppWebViewDataDetectorTypes._internal("NONE");
  static const PHONE_NUMBER = const iOSInAppWebViewDataDetectorTypes._internal("PHONE_NUMBER");
  static const LINK = const iOSInAppWebViewDataDetectorTypes._internal("LINK");
  static const ADDRESS = const iOSInAppWebViewDataDetectorTypes._internal("ADDRESS");
  static const CALENDAR_EVENT = const iOSInAppWebViewDataDetectorTypes._internal("CALENDAR_EVENT");
  static const TRACKING_NUMBER = const iOSInAppWebViewDataDetectorTypes._internal("TRACKING_NUMBER");
  static const FLIGHT_NUMBER = const iOSInAppWebViewDataDetectorTypes._internal("FLIGHT_NUMBER");
  static const LOOKUP_SUGGESTION = const iOSInAppWebViewDataDetectorTypes._internal("LOOKUP_SUGGESTION");
  static const SPOTLIGHT_SUGGESTION = const iOSInAppWebViewDataDetectorTypes._internal("SPOTLIGHT_SUGGESTION");
  static const ALL = const iOSInAppWebViewDataDetectorTypes._internal("ALL");
}

///
class InAppWebViewUserPreferredContentMode {
  final int _value;
  const InAppWebViewUserPreferredContentMode._internal(this._value);
  toValue() => _value;

  static const RECOMMENDED = const InAppWebViewUserPreferredContentMode._internal(0);
  static const MOBILE = const InAppWebViewUserPreferredContentMode._internal(1);
  static const DESKTOP = const InAppWebViewUserPreferredContentMode._internal(2);
}

///
class iOSWebViewOptionsPresentationStyle {
  final int _value;
  const iOSWebViewOptionsPresentationStyle._internal(this._value);
  toValue() => _value;

  static const FULL_SCREEN = const iOSWebViewOptionsPresentationStyle._internal(0);
  static const PAGE_SHEET = const iOSWebViewOptionsPresentationStyle._internal(1);
  static const FORM_SHEET = const iOSWebViewOptionsPresentationStyle._internal(2);
  static const CURRENT_CONTEXT = const iOSWebViewOptionsPresentationStyle._internal(3);
  static const CUSTOM = const iOSWebViewOptionsPresentationStyle._internal(4);
  static const OVER_FULL_SCREEN = const iOSWebViewOptionsPresentationStyle._internal(5);
  static const OVER_CURRENT_CONTEXT = const iOSWebViewOptionsPresentationStyle._internal(6);
  static const POPOVER = const iOSWebViewOptionsPresentationStyle._internal(7);
  static const NONE = const iOSWebViewOptionsPresentationStyle._internal(8);
  static const AUTOMATIC = const iOSWebViewOptionsPresentationStyle._internal(9);
}

///
class iOSWebViewOptionsTransitionStyle {
  final int _value;
  const iOSWebViewOptionsTransitionStyle._internal(this._value);
  toValue() => _value;

  static const COVER_VERTICAL = const iOSWebViewOptionsTransitionStyle._internal(0);
  static const FLIP_HORIZONTAL = const iOSWebViewOptionsTransitionStyle._internal(1);
  static const CROSS_DISSOLVE = const iOSWebViewOptionsTransitionStyle._internal(2);
  static const PARTIAL_CURL = const iOSWebViewOptionsTransitionStyle._internal(3);
}

///
class iOSSafariOptionsDismissButtonStyle {
  final int _value;
  const iOSSafariOptionsDismissButtonStyle._internal(this._value);
  toValue() => _value;

  static const DONE = const iOSSafariOptionsDismissButtonStyle._internal(0);
  static const CLOSE = const iOSSafariOptionsDismissButtonStyle._internal(1);
  static const CANCEL = const iOSSafariOptionsDismissButtonStyle._internal(2);
}

typedef onWebViewCreatedCallback = void Function(InAppWebViewController controller);
typedef onWebViewLoadStartCallback = void Function(InAppWebViewController controller, String url);
typedef onWebViewLoadStopCallback = void Function(InAppWebViewController controller, String url);
typedef onWebViewLoadErrorCallback = void Function(InAppWebViewController controller, String url, int code, String message);
typedef onWebViewProgressChangedCallback = void Function(InAppWebViewController controller, int progress);
typedef onWebViewConsoleMessageCallback = void Function(InAppWebViewController controller, ConsoleMessage consoleMessage);
typedef shouldOverrideUrlLoadingCallback = void Function(InAppWebViewController controller, String url);
typedef onWebViewLoadResourceCallback = void Function(InAppWebViewController controller, WebResourceResponse response);
typedef onWebViewScrollChangedCallback = void Function(InAppWebViewController controller, int x, int y);
typedef onDownloadStartCallback = void Function(InAppWebViewController controller, String url);
typedef onLoadResourceCustomSchemeCallback = Future<CustomSchemeResponse> Function(InAppWebViewController controller, String scheme, String url);
typedef onTargetBlankCallback = void Function(InAppWebViewController controller, String url);
typedef onGeolocationPermissionsShowPromptCallback = Future<GeolocationPermissionShowPromptResponse> Function(InAppWebViewController controller, String origin);
typedef onJsAlertCallback = Future<JsAlertResponse> Function(InAppWebViewController controller, String message);
typedef onJsConfirmCallback = Future<JsConfirmResponse> Function(InAppWebViewController controller, String message);
typedef onJsPromptCallback = Future<JsPromptResponse> Function(InAppWebViewController controller, String message, String defaultValue);
typedef onSafeBrowsingHitCallback = Future<SafeBrowsingResponse> Function(InAppWebViewController controller, String url, SafeBrowsingThreat threatType);
typedef onReceivedHttpAuthRequestCallback = Future<HttpAuthResponse> Function(InAppWebViewController controller, HttpAuthChallenge challenge);
typedef onReceivedServerTrustAuthRequestCallback = Future<ServerTrustAuthResponse> Function(InAppWebViewController controller, ServerTrustChallenge challenge);
typedef onReceivedClientCertRequestCallback = Future<ClientCertResponse> Function(InAppWebViewController controller, ClientCertChallenge challenge);