Need to complete a existing android project using PHP -- 2

We already done the core functionality, we need to complete the project with google login, admob, notification and google pay payment integration with admin panel using PHP. The app was developed by native android java and xml, flym library is kotlin. one you finalized let me share the code If you already have login, notification and admin panel from your previous projects, you can reuse that, if you are going to do from scracth this project wont profitable to you. This application is the base from [login to view URL] Here we are provide rss feed puller also, using [login to view URL] If all are set we will start a project today itself In app first two tabs are cotrolled by API and admin panel using nodeJs, we need to convert that into PHP. 1. Login process with google integration. 1.1 In app first page needs to have google login button with one text, "By using this product you are accepting the "Terms and conditions"". This "Terms and conditions" Needs to be clickable. The link will be configured in database. 1.2 In admin panel admin needs to know totally how many users are there, admin panel needs to have pagination, sorting and searching. Always consider we will be processed with lacks of records, so all logic needs to be handled in server side. 1.3 Admin can block/disable and unblock/enable the user, if the user is blocked, the email id cant able to use the app. 1.4 While login, we need to get the email id, profilepic, google id and without any additional permission if we can, we need to get DOB and gender. 2. Notification: 2.1 In admin panel we need one menu for notifications, Here we will send two types of notification with image and without image, so we need get input from admin, title, description, image url and redirect [login to view URL] they provide image url we need to big notificaion with image, otherwise small notification, if admin provide redirect url, while clicking the notification app needs to open that link in internal browser, if no link provided by admin just open the app alone. 3. Payment: 3.1 We need to provide 3 free website pulling to user. If user want to add more than three they need to purchase (Ex : unlimited site for 50Rs) 3.1 We need to configure the googlepay receiver id and amount in database, payment only via google pay. 4. Deeplink: 4.1 User can share the content in whatsapp, or fb or wherever they wish. 4.2 If other user clicks the link, if that user already installed the app, that particular article needs to open, if he didn't installed we need to forward them to playstore link. (Refer firebase deeplink) 5. Contact us 5.1 Inside app we need one option in menu like contact us. That needs to open mail app with subject and to mail. That to mail id will be configured in database. 6. Ads placement 6.1 We need to integration google admob, app id, ad unit id and app id related things needs to be configured in database. 6.2 We need to have native square box ad in top and end of the article. 6.3 In article list page,every ten articles, inbetween we needs to have Rectangle native ad. Milestone order will be 1. Migrate exising API to PHP with admin panel, admob, payment (Google pay) 2. Login, notification and all