feat: Add app-version to Chatwoot Contact Attributes (#2049)

lib/src/screens/support_chat/support_chat_page.dart

@@ -3,10 +3,8 @@ import 'package:cake_wallet/generated/i18n.dart';
 import 'package:cake_wallet/src/screens/base_page.dart';
 import 'package:cake_wallet/src/screens/support_chat/widgets/chatwoot_widget.dart';
 import 'package:cake_wallet/view_model/support_view_model.dart';
-import 'package:cw_core/utils/print_verbose.dart';
 import 'package:flutter/material.dart';
 
-
 class SupportChatPage extends BasePage {
   SupportChatPage(this.supportViewModel, {required this.secureStorage});
 
@@ -23,17 +21,16 @@ class SupportChatPage extends BasePage {
   Widget body(BuildContext context) => FutureBuilder<String>(
         future: getCookie(),
         builder: (BuildContext context, AsyncSnapshot<String> snapshot) {
-          printV(snapshot.data);
           if (snapshot.hasData)
             return ChatwootWidget(
               secureStorage,
-              supportUrl: supportViewModel.fetchUrl(authToken: snapshot.data!)
+              supportUrl: supportViewModel.fetchUrl(authToken: snapshot.data!),
+              appVersion: supportViewModel.appVersion,
             );
           return Container();
         },
       );
 
-  Future<String> getCookie() async {
-    return await secureStorage.read(key: COOKIE_KEY) ?? "";
-  }
+  Future<String> getCookie() async =>
+      await secureStorage.read(key: COOKIE_KEY) ?? "";
 }

lib/src/screens/support_chat/widgets/chatwoot_widget.dart

@@ -1,46 +1,50 @@
 import 'dart:convert';
 
 import 'package:cake_wallet/core/secure_storage.dart';
-import 'package:cw_core/utils/print_verbose.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_inappwebview/flutter_inappwebview.dart';
 
 const COOKIE_KEY = 'chatwootCookie';
 
 class ChatwootWidget extends StatefulWidget {
-  ChatwootWidget(this.secureStorage, {required this.supportUrl});
+  const ChatwootWidget(
+    this.secureStorage, {
+    required this.supportUrl,
+    required this.appVersion,
+  });
 
   final SecureStorage secureStorage;
   final String supportUrl;
+  final String appVersion;
 
   @override
   ChatwootWidgetState createState() => ChatwootWidgetState();
 }
 
 class ChatwootWidgetState extends State<ChatwootWidget> {
-  final GlobalKey _webViewkey = GlobalKey();
+  final GlobalKey _webViewKey = GlobalKey();
 
   @override
   Widget build(BuildContext context) => InAppWebView(
-        key: _webViewkey,
-    initialSettings: InAppWebViewSettings(
-      transparentBackground: true,
-    ),
+        key: _webViewKey,
+        initialSettings: InAppWebViewSettings(transparentBackground: true),
         initialUrlRequest: URLRequest(url: WebUri(widget.supportUrl)),
         onWebViewCreated: (InAppWebViewController controller) {
           controller.addWebMessageListener(
             WebMessageListener(
               jsObjectName: 'ReactNativeWebView',
-              onPostMessage: (WebMessage? message, WebUri? sourceOrigin, bool isMainFrame,
-                  PlatformJavaScriptReplyProxy replyProxy) {
+              onPostMessage: (WebMessage? message, WebUri? sourceOrigin,
+                  bool isMainFrame, PlatformJavaScriptReplyProxy replyProxy) {
                 final shortenedMessage = message?.data.toString().substring(16);
-                if (shortenedMessage != null && isJsonString(shortenedMessage)) {
+                if (shortenedMessage != null &&
+                    _isJsonString(shortenedMessage)) {
                   final parsedMessage = jsonDecode(shortenedMessage);
                   final eventType = parsedMessage["event"];
                   if (eventType == 'loaded') {
                     final authToken = parsedMessage["config"]["authToken"];
-                    printV(authToken);
-                    storeCookie(authToken as String);
+                    _storeCookie(authToken as String);
+                    _setCustomAttributes(
+                        controller, {"app_version": widget.appVersion});
                   }
                 }
               },
@@ -49,7 +53,7 @@ class ChatwootWidgetState extends State<ChatwootWidget> {
         },
       );
 
-  bool isJsonString(String str) {
+  bool _isJsonString(String str) {
     try {
       jsonDecode(str);
     } catch (e) {
@@ -58,7 +62,24 @@ class ChatwootWidgetState extends State<ChatwootWidget> {
     return true;
   }
 
-  Future<void> storeCookie(String value) async {
-    await widget.secureStorage.write(key: COOKIE_KEY, value: value);
+  /// Add additional contact attributes to the chatwoot chat.
+  /// IMPORTANT: You have to add the attribute key in the chatwoot settings
+  ///            under: settings/custom-attributes
+  Future<void> _setCustomAttributes(
+    InAppWebViewController controller,
+    Map<String, dynamic> customAttributes,
+  ) {
+    final attributeObject = {
+      "event": "set-custom-attributes",
+      "customAttributes": customAttributes,
+    };
+    return controller.postWebMessage(
+      message: WebMessage(
+        data: "chatwoot-widget:${jsonEncode(attributeObject)}",
+      ),
+    );
   }
+
+  Future<void> _storeCookie(String value) =>
+      widget.secureStorage.write(key: COOKIE_KEY, value: value);
 }