Unity firebase auth Project bulid and export files in zip or rar

Hi Guys, I need a unity project built with firebase phone auth. In the first scene it should ask for phone number with country code and get otp button. Below it their should be a input field to enter otp and a button to verify otp. This both things should be on the same scene. On successful verification of otp it should go to scene two where the user has to input his name and email id and submit it to firebase database. On successful submission it should go to scene three which is empty scene. Once the user has logged in with phone number until and unless he logout from the session the user shouldn't be asked for phone number , name and email id . This project should work on both Android as well as iOS. While submitting the project you may remove your google json file from it and instead provide a .doc file which explains what files I should replace with mine and what steps should I follow so that it works on my both systems i.e. Android and iOS. UI doesn't matter to me so just keep it basic, the functions and functionality is what matters. If there is any further question fell free to ask. (Need to be done by at max tomorrow)