Explicitly persist message backup tier.

app/src/main/java/org/thoughtcrime/securesms/backup/v2/BackupRepository.kt

@@ -7,6 +7,7 @@ package org.thoughtcrime.securesms.backup.v2
 
 import org.signal.core.util.Base64
 import org.signal.core.util.EventTimer
+import org.signal.core.util.LongSerializer
 import org.signal.core.util.logging.Log
 import org.signal.core.util.withinTransaction
 import org.signal.libsignal.messagebackup.MessageBackup
@@ -689,7 +690,17 @@ class BackupMetadata(
   val mediaCount: Long
 )
 
-enum class MessageBackupTier {
+enum class MessageBackupTier(val value: Int) {
-  FREE,
+  FREE(0),
-  PAID
+  PAID(1);
+
+  companion object Serializer : LongSerializer<MessageBackupTier> {
+    override fun serialize(data: MessageBackupTier): Long {
+      return data.value.toLong()
+    }
+
+    override fun deserialize(data: Long): MessageBackupTier {
+      return values().firstOrNull { it.value == data.toInt() } ?: FREE
+    }
+  }
 }

app/src/main/java/org/thoughtcrime/securesms/backup/v2/ui/subscription/MessageBackupsFlowViewModel.kt

@@ -73,6 +73,7 @@ class MessageBackupsFlowViewModel : ViewModel() {
 
   private fun validateTypeAndUpdateState(): MessageBackupsScreen {
     SignalStore.backup().areBackupsEnabled = true
+    SignalStore.backup().backupTier = state.value.selectedMessageBackupTier!!
     return MessageBackupsScreen.COMPLETED
     // return MessageBackupsScreen.CHECKOUT_SHEET TODO [message-backups] Switch back to payment flow
   }

app/src/main/java/org/thoughtcrime/securesms/keyvalue/BackupValues.kt

@@ -17,12 +17,12 @@ internal class BackupValues(store: KeyValueStore) : SignalStoreValues(store) {
   companion object {
     val TAG = Log.tag(BackupValues::class.java)
     private const val KEY_CREDENTIALS = "backup.credentials"
-    private const val KEY_CDN_CAN_READ_WRITE = "backup.cdn.canReadWrite"
     private const val KEY_CDN_READ_CREDENTIALS = "backup.cdn.readCredentials"
     private const val KEY_CDN_READ_CREDENTIALS_TIMESTAMP = "backup.cdn.readCredentials.timestamp"
     private const val KEY_RESTORE_STATE = "backup.restoreState"
     private const val KEY_BACKUP_USED_MEDIA_SPACE = "backup.usedMediaSpace"
     private const val KEY_BACKUP_LAST_PROTO_SIZE = "backup.lastProtoSize"
+    private const val KEY_BACKUP_TIER = "backup.backupTier"
 
     private const val KEY_NEXT_BACKUP_TIME = "backup.nextBackupTime"
     private const val KEY_LAST_BACKUP_TIME = "backup.lastBackupTime"
@@ -60,6 +60,7 @@ internal class BackupValues(store: KeyValueStore) : SignalStoreValues(store) {
   var nextBackupTime: Long by longValue(KEY_NEXT_BACKUP_TIME, -1)
   var lastBackupTime: Long by longValue(KEY_LAST_BACKUP_TIME, -1)
   var backupFrequency: BackupFrequency by enumValue(KEY_BACKUP_FREQUENCY, BackupFrequency.MANUAL, BackupFrequency.Serializer)
+  var backupTier: MessageBackupTier by enumValue(KEY_BACKUP_TIER, MessageBackupTier.FREE, MessageBackupTier.Serializer)
 
   val totalBackupSize: Long get() = lastBackupProtoSize + usedBackupMediaSpace
 
@@ -81,16 +82,6 @@ internal class BackupValues(store: KeyValueStore) : SignalStoreValues(store) {
         .apply()
     }
 
-  val backupTier: MessageBackupTier? = if (areBackupsEnabled) {
-    if (backsUpMedia) {
-      MessageBackupTier.PAID
-    } else {
-      MessageBackupTier.FREE
-    }
-  } else {
-    null
-  }
-
   var backupsInitialized: Boolean by booleanValue(KEY_BACKUPS_INITIALIZED, false)
 
   /**