yt sign-in: improve qr code link

Author: yuliskov

common/src/main/java/com/liskovsoft/smartyoutubetv2/common/app/presenters/YTSignInPresenter.java

@@ -14,6 +14,7 @@
 public class YTSignInPresenter extends SignInPresenter {
     private static final String TAG = YTSignInPresenter.class.getSimpleName();
     private static final String SIGN_IN_URL = "https://yt.be/activate"; // 18+, no search history
+    private static final String QR_SIGN_IN_URL = "https://youtube.com/qr/activate/";
     //private static final String SIGN_IN_URL = "https://youtube.com/tv/activate"; // 18+, no search history
     //private static final String SIGN_IN_URL = "https://youtube.com/activate"; // age restricted, supports search history
     @SuppressLint("StaticFieldLeak")
@@ -64,7 +65,8 @@ public void onActionClicked() {
     private void updateUserCode() {
         mSignInAction = mService.getSignInService().signInObserve()
                 .subscribe(
-                        userCode -> getView().showCode(userCode, SIGN_IN_URL),
+                        userCode ->
+                                getView().showCode(userCode, SIGN_IN_URL, QR_SIGN_IN_URL + userCode.replace(" ", "-")),
                         error -> {
                             Log.e(TAG, "Sign in error: %s", error.getMessage());
                             if (getView() != null) {

common/src/main/java/com/liskovsoft/smartyoutubetv2/common/app/views/SignInView.java

@@ -2,5 +2,6 @@
 
 public interface SignInView {
     void showCode(String userCode, String signInUrl);
+    void showCode(String userCode, String signInUrl, String fullSignInUrl);
     void close();
 }

smarttubetv/src/main/java/com/liskovsoft/smartyoutubetv2/tv/ui/signin/SignInFragment.java

@@ -53,17 +53,22 @@ public void onDestroy() {
 
     @Override
     public void showCode(String userCode, String signInUrl) {
-        setTitle(userCode, signInUrl);
+        setTitle(userCode, signInUrl, null);
     }
 
-    private void setTitle(String userCode, String signInUrl) {
-        if (TextUtils.isEmpty(userCode)) {
+    @Override
+    public void showCode(String userCode, String signInUrl, String fullSignInUrl) {
+        setTitle(userCode, signInUrl, fullSignInUrl);
+    }
+
+    private void setTitle(String userCode, String signInUrl, String fullSignInUrl) {
+        if (getContext() == null || TextUtils.isEmpty(userCode)) {
             return;
         }
 
         getGuidanceStylist().getTitleView().setText(userCode);
 
-        mFullSignInUrl = signInUrl + "?user_code=" + userCode.replace(" ", "-");
+        mFullSignInUrl = fullSignInUrl != null ? fullSignInUrl : signInUrl;
 
         Glide.with(getContext())
                 .load(Utils.toQrCodeLink(mFullSignInUrl))