Firebase chat for iOS

Need to implement firebase chat in with these feature in our existing app Realm would be use as local database Open for any library integration No login/sigup required we will provide unique user id(from our api) and then chat will start All chat UI should be according to our design (Auolayout based for iphone/ipad) One to one chat only No need to create node in firebase DB Feature: [login to view URL] seen [login to view URL] status 3. chat list sorting according to timestamp [login to view URL] status [login to view URL] status [login to view URL] message/image/doc sending [login to view URL] image/doc loader [login to view URL] [login to view URL] wise chat [login to view URL] view(dynamic hire button) . Will let you know about this [login to view URL] indicator [login to view URL] notification receiver after 2-3 hour of app inactivity [login to view URL] after one unread message(first time only)(we will provide api) [login to view URL] media/doc file on aws api(we will provide) [login to view URL] admin on every chat list(Already impelemented logic in firebase DB) [login to view URL] can't block admin [login to view URL] stack [login to view URL] on past chat scrolling [login to view URL] chat data after login again with progress loader [login to view URL] match with server if user change mobile local time, will show popup like whatsapp 21. badge in chat list and app icon 22. Blue tick with user profile name (will provide api) [login to view URL] scrolling and navigation [login to view URL] off the push notifications received for chat message.(will provide api) [login to view URL] list sorting according to latest msg, should also handle different timezone chat [login to view URL] profile pic will visible in user profile