Add cleanup for cellular data usage records

Removes records older than 60 days during sync to prevent
unbounded database growth.

Author: bjtitus

podcasts/Constants.swift

@@ -186,6 +186,7 @@ struct Constants {
         static let firstTimePlaylistCreated = "FirstTimePlaylistCreated"
         static let saveCurrentUpNextQueueIntoPlaylist = "SaveCurrentUpNextQueueIntoPlaylist"
         static let shouldResultEndOfYearSyncStatus = "ShouldResultEndOfYearSyncStatus"
+        static let lastCellularDataUsageCleanupDate = "lastCellularDataUsageCleanupDate"
 
         enum headphones {
             static let previousAction = SettingValue("headphones.previousAction",

podcasts/ServerSyncManager.swift

@@ -5,6 +5,8 @@ import PocketCastsUtils
 
 class ServerSyncManager: ServerSyncDelegate {
     static let shared = ServerSyncManager()
+    private static let cellularDataUsageRetentionPeriod: TimeInterval = 60.days
+    private static let cellularDataUsageCleanupInterval: TimeInterval = 24.hours
 
     // MARK: - Podcast functions
 
@@ -73,6 +75,7 @@ class ServerSyncManager: ServerSyncDelegate {
     }
 
     func performActionsAfterSync() {
+        cleanupCellularDataUsageIfNeeded()
         PodcastManager.shared.checkForExpiredPodcastsAndCleanup()
         PodcastManager.shared.checkForPendingAndAutoDownloads()
         #if !APPCLIP
@@ -90,6 +93,28 @@ class ServerSyncManager: ServerSyncDelegate {
         }
     }
 
+    private func cleanupCellularDataUsageIfNeeded() {
+        let defaults = UserDefaults.standard
+        let lastCleanupDate = defaults.object(forKey: Constants.UserDefaults.lastCellularDataUsageCleanupDate) as? Date
+
+        guard DateUtil.hasEnoughTimePassed(since: lastCleanupDate, time: Self.cellularDataUsageCleanupInterval) else {
+            return
+        }
+
+        let cleanupDate = Date()
+        defaults.set(cleanupDate, forKey: Constants.UserDefaults.lastCellularDataUsageCleanupDate)
+
+        Task {
+            let didCleanup = await DataManager.sharedManager.cellularDataUsageManager.deleteRecords(
+                olderThan: Date(timeIntervalSinceNow: -Self.cellularDataUsageRetentionPeriod)
+            )
+
+            if !didCleanup {
+                defaults.set(lastCleanupDate, forKey: Constants.UserDefaults.lastCellularDataUsageCleanupDate)
+            }
+        }
+    }
+
     func cleanupCloudOnlyFiles() {
         #if !APPCLIP
         UserEpisodeManager.cleanupCloudOnlyFiles()