Adding functionality to existing Swft3 & Firebase / Firebase Storage app

We are using JSQMessenger for our chat platform. [login to view URL] Firebase & Firebase Storage for back-end system [login to view URL] Code Base Swift 3 We need to integrate these features in to the chat. 1. User Avatar - We already have avatars coming in with the first letter of the display name, but if the user has a profile pic it needs to pull that picture. 2. Chat Media Upload - When the users click the “+” button they are directed to either a Camera or Photo Library right now, it needs to ask them a selection list “Photo From Library, Take Photo, Video” - Photo from Library will open up the photo library to select photos only - Take photo will open up a camera to take a picture only - Video will utilise “[login to view URL]” 10-second video only all media will need to be uploaded to Firebase Storage - The chat already has the methods to handle video and image in the chat screen you will need to add a function when image is tapped to open it full screen and close it and when the video is tapped to play in full screen and close it 3. We currently have JSON files that information is being read from embded json files. I would like to have those JSONS be pulled from a server. 5. Bug fixes 1. a menu button stops working once we leave the screen and come back. 2. when running on iPad the initial Segue to home screen doesn’t work after login it works fine on iPhone (this is not a universal app)