Add OperatingSystemType and get OS util

packages/website/ts/types.ts

@@ -567,6 +567,16 @@ export enum BrowserType {
     Other = 'Other',
 }
 
+export enum OperatingSystemType {
+    Android = 'Android',
+    iOS = 'iOS',
+    Mac = 'Mac',
+    Windows = 'Windows',
+    WindowsPhone = 'WindowsPhone',
+    Linux = 'Linux',
+    Other = 'Other',
+}
+
 export enum AccountState {
     Disconnected = 'Disconnected',
     Ready = 'Ready',

packages/website/ts/utils/utils.ts

@@ -24,6 +24,7 @@ import {
     Token,
     TokenByAddress,
     TokenState,
+    OperatingSystemType,
 } from 'ts/types';
 import { configs } from 'ts/utils/configs';
 import { constants } from 'ts/utils/constants';
@@ -418,6 +419,23 @@ export const utils = {
             return BrowserType.Other;
         }
     },
+    getOperatingSystem(): OperatingSystemType {
+        if (bowser.android) {
+            return OperatingSystemType.Android;
+        } else if (bowser.ios) {
+            return OperatingSystemType.iOS;
+        } else if (bowser.mac) {
+            return OperatingSystemType.Mac;
+        } else if (bowser.windows) {
+            return OperatingSystemType.Windows;
+        } else if (bowser.windowsphone) {
+            return OperatingSystemType.WindowsPhone;
+        } else if (bowser.linux) {
+            return OperatingSystemType.Linux;
+        } else {
+            return OperatingSystemType.Other;
+        }
+    },
     isTokenTracked(token: Token): boolean {
         return !_.isUndefined(token.trackedTimestamp);
     },