Online Check-In Application for Guests

I need to create an app for online check in. Guests (there can be one or more) can either take a photo of their documents or upload an existing photo. Afterward, the app needs to capture a selfie of the main guest. Following the selfie, the app should perform a verification process by asking the main guest to move their head left and right, smile, and close their eyes. During this process, the app must ensure that the person matches the selfie and that the selfie matches the photo on the document. Finally, the app should save the document details of the main guest and all other guests. The correct number of guests is provided at the time of booking.