Shorten Firebase Dynamic Links

app/src/main/java/org/gdg/frisbee/android/api/FirebaseDynamicLinks.java

@@ -0,0 +1,16 @@
+package org.gdg.frisbee.android.api;
+
+import org.gdg.frisbee.android.api.model.FirebaseDynamicLinksRequest;
+import org.gdg.frisbee.android.api.model.FirebaseDynamicLinksResponse;
+
+import retrofit2.Call;
+import retrofit2.http.Body;
+import retrofit2.http.POST;
+import retrofit2.http.Query;
+
+public interface FirebaseDynamicLinks {
+
+    @POST("/v1/shortLinks")
+    Call<FirebaseDynamicLinksResponse> shortenUrl(@Query("key") String apiKey,
+                                                  @Body FirebaseDynamicLinksRequest firebaseDynamicLinksRequest);
+}

app/src/main/java/org/gdg/frisbee/android/api/FirebaseDynamicLinksFactory.java

@@ -0,0 +1,30 @@
+package org.gdg.frisbee.android.api;
+
+import com.google.gson.FieldNamingPolicy;
+
+import org.gdg.frisbee.android.utils.Utils;
+
+import okhttp3.OkHttpClient;
+import retrofit2.Retrofit;
+import retrofit2.converter.gson.GsonConverterFactory;
+
+public final class FirebaseDynamicLinksFactory {
+    private static final String BASE_URL = "https://firebasedynamiclinks.googleapis.com";
+
+    private FirebaseDynamicLinksFactory() {
+    }
+
+    private static Retrofit provideRestAdapter(OkHttpClient okHttpClient) {
+        return new Retrofit.Builder()
+            .baseUrl(BASE_URL)
+            .client(okHttpClient)
+            .addConverterFactory(
+                GsonConverterFactory.create(Utils.getGson(FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES))
+            )
+            .build();
+    }
+
+    public static FirebaseDynamicLinks provideFirebaseDynamicLinksApi(OkHttpClient okHttpClient) {
+        return provideRestAdapter(okHttpClient).create(FirebaseDynamicLinks.class);
+    }
+}

app/src/main/java/org/gdg/frisbee/android/api/model/FirebaseDynamicLinksRequest.java

@@ -0,0 +1,11 @@
+package org.gdg.frisbee.android.api.model;
+
+public class FirebaseDynamicLinksRequest {
+    private String longDynamicLink;
+    private Suffix suffix;
+
+    public FirebaseDynamicLinksRequest(String longDynamicLink, Suffix suffix) {
+        this.longDynamicLink = longDynamicLink;
+        this.suffix = suffix;
+    }
+}

app/src/main/java/org/gdg/frisbee/android/api/model/FirebaseDynamicLinksResponse.java

@@ -0,0 +1,19 @@
+package org.gdg.frisbee.android.api.model;
+
+public class FirebaseDynamicLinksResponse {
+    private final String shortLink;
+    private final String previewLink;
+
+    public FirebaseDynamicLinksResponse(String shortLink, String previewLink) {
+        this.shortLink = shortLink;
+        this.previewLink = previewLink;
+    }
+
+    public String getShortLink() {
+        return shortLink;
+    }
+
+    public String getPreviewLink() {
+        return previewLink;
+    }
+}

app/src/main/java/org/gdg/frisbee/android/api/model/Suffix.java

@@ -0,0 +1,5 @@
+package org.gdg.frisbee.android.api.model;
+
+public class Suffix {
+    private final String option = "SHORT";
+}

app/src/main/java/org/gdg/frisbee/android/app/App.java

@@ -34,6 +34,8 @@
 
 import org.gdg.frisbee.android.BuildConfig;
 import org.gdg.frisbee.android.R;
+import org.gdg.frisbee.android.api.FirebaseDynamicLinks;
+import org.gdg.frisbee.android.api.FirebaseDynamicLinksFactory;
 import org.gdg.frisbee.android.api.GdeDirectory;
 import org.gdg.frisbee.android.api.GdeDirectoryFactory;
 import org.gdg.frisbee.android.api.GdgXHub;
@@ -78,6 +80,7 @@ public class App extends BaseApp implements LocationListener {
     private OrganizerChecker mOrganizerChecker;
     private List<TaggedEventSeries> mTaggedEventSeriesList;
     private RefWatcher refWatcher;
+    private FirebaseDynamicLinks firebaseDynamicLinks;
 
     public static App from(Context context) {
         return (App) context.getApplicationContext();
@@ -296,6 +299,13 @@ public PlusApi getPlusApi() {
         return plusApi;
     }
 
+    public FirebaseDynamicLinks getFirebaseDynamicLinks() {
+        if (firebaseDynamicLinks == null) {
+            firebaseDynamicLinks = FirebaseDynamicLinksFactory.provideFirebaseDynamicLinksApi(okHttpClient);
+        }
+        return firebaseDynamicLinks;
+    }
+
     public RefWatcher getRefWatcher() {
         return refWatcher;
     }

app/src/main/java/org/gdg/frisbee/android/onboarding/AppInviteLinkGenerator.java

@@ -1,9 +1,16 @@
 package org.gdg.frisbee.android.onboarding;
 
+import android.app.ProgressDialog;
 import android.support.v4.app.ShareCompat;
 
 import org.gdg.frisbee.android.BuildConfig;
 import org.gdg.frisbee.android.R;
+import org.gdg.frisbee.android.api.Callback;
+import org.gdg.frisbee.android.api.FirebaseDynamicLinks;
+import org.gdg.frisbee.android.api.model.FirebaseDynamicLinksRequest;
+import org.gdg.frisbee.android.api.model.FirebaseDynamicLinksResponse;
+import org.gdg.frisbee.android.api.model.Suffix;
+import org.gdg.frisbee.android.app.App;
 import org.gdg.frisbee.android.common.GdgActivity;
 import org.gdg.frisbee.android.utils.PlusUtils;
 
@@ -16,31 +23,36 @@ public class AppInviteLinkGenerator {
 
     private final String dynamicLinkDomain;
     private final String deepLinkBaseUrl;
+    private GdgActivity activity;
+    private ProgressDialog shareProgressDialog;
+
+    private AppInviteLinkGenerator(String dynamicLinkDomain, String deepLinkBaseUrl, GdgActivity activity) {
+        this.dynamicLinkDomain = dynamicLinkDomain;
+        this.deepLinkBaseUrl = deepLinkBaseUrl;
+        this.activity = activity;
+    }
 
     static String extractSender(HttpUrl httpUrl) {
         return httpUrl.queryParameter(SENDER);
     }
 
-    public static AppInviteLinkGenerator create() {
-        return new AppInviteLinkGenerator("https://fmec6.app.goo.gl/", "https://gdg.events/");
-    }
-
-    private AppInviteLinkGenerator(String dynamicLinkDomain, String deepLinkBaseUrl) {
-        this.dynamicLinkDomain = dynamicLinkDomain;
-        this.deepLinkBaseUrl = deepLinkBaseUrl;
+    public static AppInviteLinkGenerator create(GdgActivity activity) {
+        return new AppInviteLinkGenerator("https://fmec6.app.goo.gl/", "https://gdg.events/", activity);
     }
 
     public static void shareAppInviteLink(GdgActivity activity) {
-        AppInviteLinkGenerator linkGenerator = create();
+        AppInviteLinkGenerator linkGenerator = create(activity);
         String gplusId = PlusUtils.getCurrentPlusId(activity);
-        HttpUrl appInviteLink = gplusId != null
-            ? linkGenerator.createAppInviteLink(gplusId)
-            : NON_SIGNED_IN_INVITE_URL;
-        ShareCompat.IntentBuilder.from(activity)
-            .setChooserTitle(R.string.invite_friends)
-            .setText(activity.getString(R.string.invitation_message, appInviteLink))
-            .setType("text/plain")
-            .startChooser();
+        HttpUrl appInviteLink;
+        if (gplusId != null) {
+            appInviteLink = linkGenerator.createAppInviteLink(gplusId);
+            linkGenerator.shareShortAppInviteLink(appInviteLink.toString());
+            linkGenerator.showProgressDialog(activity);
+        } else {
+            appInviteLink = NON_SIGNED_IN_INVITE_URL;
+            linkGenerator.createChooser(appInviteLink);
+        }
+
 
         activity.sendAnalyticsEvent("AppInvite", "Shared",
             gplusId != null ? "Signed In" : "Non Signed In");
@@ -63,4 +75,39 @@ private String createDeepLink(String gplusId) {
             .toString();
     }
 
+    private void shareShortAppInviteLink(String longUrl) {
+        FirebaseDynamicLinks firebaseDynamicLinks = App.from(activity).getFirebaseDynamicLinks();
+        FirebaseDynamicLinksRequest firebaseDynamicLinksRequest =
+            new FirebaseDynamicLinksRequest(longUrl, new Suffix());
+        firebaseDynamicLinks.shortenUrl(BuildConfig.IP_SIMPLE_API_ACCESS_KEY, firebaseDynamicLinksRequest)
+            .enqueue(new Callback<FirebaseDynamicLinksResponse>() {
+                @Override
+                public void onSuccess(FirebaseDynamicLinksResponse response) {
+                    createChooser(HttpUrl.parse(response.getShortLink()));
+                    shareProgressDialog.dismiss();
+                }
+
+                @Override
+                public void onError() {
+                    createChooser(NON_SIGNED_IN_INVITE_URL);
+                    shareProgressDialog.dismiss();
+                }
+            });
+    }
+
+    private void showProgressDialog(GdgActivity activity) {
+        shareProgressDialog = new ProgressDialog(activity);
+        shareProgressDialog.setIndeterminate(true);
+        shareProgressDialog.setCancelable(true);
+        shareProgressDialog.setMessage(activity.getString(R.string.generating_url));
+        shareProgressDialog.show();
+    }
+
+    private void createChooser(HttpUrl appInviteLink) {
+        ShareCompat.IntentBuilder.from(activity)
+            .setChooserTitle(R.string.invite_friends)
+            .setText(activity.getString(R.string.invitation_message, appInviteLink))
+            .setType("text/plain")
+            .startChooser();
+    }
 }

app/src/main/res/values/strings.xml

@@ -174,4 +174,5 @@
   <string name="invite_congrats">Yey! You\'re invited by\n%s</string>
   <string name="friend">a friend</string>
   <string name="login_register">Login/Register</string>
+  <string name="generating_url">Generating URL</string>
 </resources>