Refactor storage model to work with native Realm

ios/App/Shared/util/DaoExtensions.swift

@@ -0,0 +1,45 @@
+//
+//  DaoExtensions.swift
+//  App
+//
+//  Created by Ron Heft on 8/16/22.
+//
+
+import Foundation
+import RealmSwift
+
+extension Object {
+    func save() {
+        let realm = try! Realm()
+        try! realm.write {
+            realm.add(self, update: .modified)
+        }
+    }
+    
+    func update(handler: () -> Void) {
+        try! self.realm?.write {
+            handler()
+        }
+    }
+}
+
+extension EmbeddedObject {
+    // Required to disassociate from Realm when copying into local objects
+    static func detachCopy<T:Codable>(of object: T?) -> T? {
+        guard let object = object else { return nil }
+        let json = try! JSONEncoder().encode(object)
+        return try! JSONDecoder().decode(T.self, from: json)
+    }
+}
+
+protocol Deletable {
+    func delete()
+}
+
+extension Deletable where Self: Object {
+    func delete() {
+        try! self.realm?.write {
+            self.realm?.delete(self)
+        }
+    }
+}

ios/App/Shared/util/Database.swift

@@ -131,14 +131,6 @@ class Database {
         try! realm.write { realm.add(localLibraryItem, update: .modified) }
     }
     
-    public func removeLocalLibraryItem(localLibraryItemId: String) {
-        let realm = try! Realm()
-        try! realm.write {
-            let item = getLocalLibraryItem(localLibraryItemId: localLibraryItemId)
-            realm.delete(item!)
-        }
-    }
-    
     public func getLocalFile(localFileId: String) -> LocalFile? {
         let realm = try! Realm()
         return realm.object(ofType: LocalFile.self, forPrimaryKey: localFileId)
@@ -164,11 +156,6 @@ class Database {
         return try! realm.write { realm.add(downloadItem, update: .modified) }
     }
     
-    public func removeDownloadItem(_ downloadItem: DownloadItem) {
-        let realm = try! Realm()
-        return try! realm.write { realm.delete(downloadItem) }
-    }
-    
     public func getDeviceSettings() -> DeviceSettings {
         let realm = try! Realm()
         return realm.objects(DeviceSettings.self).first ?? getDefaultDeviceSettings()

ios/App/Shared/util/Extensions.swift

@@ -94,19 +94,3 @@ extension URL {
         return attributes?[.creationDate] as? Date
     }
 }
-
-// MARK: - DAO Methods
-extension Object {
-    func save() {
-        let realm = try! Realm()
-        try! realm.write {
-            realm.add(self, update: .modified)
-        }
-    }
-    
-    func update(handler: () -> Void?) {
-        try! self.realm?.write {
-            handler()
-        }
-    }
-}