package com.example.aiapp

import android.content.Context
import android.net.Uri
import com.example.wgapplink.ServerStore

/**
 * Where the backend is and how to authenticate to it. Absent until the phone is enrolled -- by
 * scanning the server's terminal QR (an `aiapp://enroll` URI the camera app hands to MainActivity)
 * or by typing the fields into the settings screen.
 */
typealias ServerSettings = com.example.wgapplink.ServerSettings

/**
 * This app's enrollment, which is the whole of what is product-specific about it.
 *
 * Both values are load-bearing. The scheme is what routes a scanned QR here rather than to Dev
 * Updater, and the key alias names the Android Keystore key the token is already sealed under on
 * every enrolled phone -- changing it would leave those phones reading as not enrolled.
 */
private val store = ServerStore(scheme = "aiapp", keyAlias = "aiapp-token-key")

fun loadServerSettings(context: Context): ServerSettings? = store.load(context)

fun saveServerSettings(context: Context, settings: ServerSettings) = store.save(context, settings)

fun parseEnrollmentUri(uri: Uri): ServerSettings? = store.parseEnrollmentUri(uri)