Refactor ejabberd API integration

app/services/ejabberd_manager/set_default_bookmarks.rb

@@ -0,0 +1,31 @@
+module EjabberdManager
+  class SetDefaultBookmarks < EjabberdManagerService
+    def initialize(user:)
+      @user = user
+    end
+
+    def call
+      return unless Setting.xmpp_default_rooms.any?
+
+      private_set @user, storage_content
+    end
+
+    private
+
+    def storage_content
+      bookmarks = ""
+      Setting.xmpp_default_rooms.each do |r|
+        bookmarks << conference_element(
+          jid: r[/<(.+)>/, 1], name: r[/^(.+)\s/, 1], nick: @user.cn,
+          autojoin: Setting.xmpp_autojoin_default_rooms
+        )
+      end
+
+      "<storage xmlns='storage:bookmarks'>#{bookmarks}</storage>"
+    end
+
+    def conference_element(jid:, name:, autojoin: false, nick:)
+      "<conference jid='#{jid}' name='#{name}' autojoin='#{autojoin.to_s}'><nick>#{nick}</nick></conference>"
+    end
+  end
+end