add device detection logic

src/utils/common/deviceDetection.ts

@@ -0,0 +1,26 @@
+const GetDeviceOS = () => {
+    let userAgent = '';
+    if (
+        typeof window !== 'undefined' &&
+        typeof window.navigator !== 'undefined'
+    ) {
+        userAgent = navigator.userAgent || navigator.vendor || window.opera;
+    }
+    // Windows Phone must come first because its UA also contains "Android"
+    if (/windows phone/i.test(userAgent)) {
+        return 'wp';
+    }
+
+    if (/android/i.test(userAgent)) {
+        return 'android';
+    }
+
+    // iOS detection from: http://stackoverflow.com/a/9039885/177710
+    if (/iPad|iPhone|iPod/.test(userAgent) && !window.MSStream) {
+        return 'ios';
+    }
+
+    return 'unknown';
+};
+
+export default GetDeviceOS;