Adding Smart App Banner for insporation on iOS devices

app/helpers/application_helper.rb

@@ -13,6 +13,14 @@ module ApplicationHelper
     AppConfig.version.number
   end
 
+  def uri_with_username
+    if user_signed_in?
+      AppConfig.pod_uri + "?username=#{current_user.username}"
+    else
+      AppConfig.pod_uri
+    end
+  end
+
   def changelog_url
     return AppConfig.settings.changelog_url.get if AppConfig.settings.changelog_url.present?
 

app/views/layouts/application.html.haml

@@ -6,6 +6,7 @@
 %html{lang: I18n.locale.to_s, dir: (rtl? ? "rtl" : "ltr")}
   %head{prefix: og_prefix}
     %meta{name: "viewport", content: "width=device-width, initial-scale=1"}/
+    %meta{name: "apple-itunes-app", content: "app-id=1538074832, app-argument=#{uri_with_username}"}
 
     - content_for :javascript do
       = javascript_include_tag :main

spec/helpers/application_helper_spec.rb

@@ -165,4 +165,34 @@ describe ApplicationHelper, :type => :helper do
       expect(pod_version).to match "0.0.1.0"
     end
   end
+
+  describe "#uri_with_username" do
+    attr_reader :current_user
+
+    before do
+      @current_user = alice
+      def user_signed_in?
+        true
+      end
+    end
+
+    it "displays the pod uri and username if logged in" do
+      allow(AppConfig).to receive(:pod_uri) { "https://diaspora.social" }
+      expect(uri_with_username).to match "https://diaspora.social?username=alice"
+    end
+  end
+
+  describe "#uri_with_username without logged in user" do
+    before do
+      @current_user = alice
+      def user_signed_in?
+        false
+      end
+    end
+
+    it "displays the pod uri" do
+      allow(AppConfig).to receive(:pod_uri) { "https://diaspora.social" }
+      expect(uri_with_username).to match "https://diaspora.social"
+    end
+  end
 end