implemented storing undo updates in DB and handled undo user UI

Author: prateekan6

GoInfoGame/GoInfoGame/DataBase/DBModels/StoredChangeset.swift

@@ -43,6 +43,8 @@ class StoredChangeset: Object {
     @Persisted var point: CLLocationCoordinate2D = CLLocationCoordinate2D(latitude: 0.0, longitude: 0.0)
     @Persisted var nodes: List<Int64> = List<Int64>()
     @Persisted var updatedVersion: Int = -1
+    @Persisted var isUndoCompleted: Bool = false
+    @Persisted var undoOn: Date? = nil
 
     public func asOSMWay(isUndo: Bool = false) -> OSMWay {
         var storage = originalTags.toDictionary()

GoInfoGame/GoInfoGame/DataBase/DatabaseConnector.swift

@@ -440,6 +440,21 @@ class DatabaseConnector {
         }
     }
 
+    func updateChangesetWithUndoResultSuccess(obj:String) -> StoredChangeset? {
+        guard let changeset = realm.object(ofType: StoredChangeset.self, forPrimaryKey: obj) else {
+            return nil
+        }
+        do {
+            try realm.write {
+                changeset.undoOn = Date()
+                changeset.isUndoCompleted = true
+            }
+            return changeset
+        } catch (let error){
+            return nil
+        }
+    }
+    
     func updateNodeVersion(nodeId: String, version:Int) -> StoredNode?{
         let intId = Int(nodeId) ?? -1
         guard let theNode = getNode(id: intId, version: .original) else { return nil }

GoInfoGame/GoInfoGame/quests/QuestProtocols.swift

@@ -41,6 +41,7 @@ class QuestBase {
         // Convert from ElementType enum to StoredElementEnum
         Task.detached(operation: { @MainActor in
             let storedElementType: StoredElementEnum = changeSet.elementType
+            let changesetId = changeSet.id
             do {
                 var result: (result: Bool, version: Int) = (false, -1)
                 switch storedElementType {
@@ -51,6 +52,11 @@ class QuestBase {
                 case .unknown:
                     print("❌ Undo failed: Element type not found")
                 }
+                print("undo result \(result)")
+                DispatchQueue.main.async {
+                    _ = DatabaseConnector.shared.updateChangesetWithUndoResultSuccess(obj: changesetId)
+                }
+                
             }
             catch {
                 print("❌ Undo failed: \(error)")

GoInfoGame/GoInfoGame/quests/QuestUndoManager.swift

@@ -38,7 +38,7 @@ class MapUndoManager {
     func getUndoItems() -> [UndoItem] {
         var items: [UndoItem] = []
 
-        let editedNodes = realm.objects(StoredChangeset.self).filter("changesetId == 0")
+        let editedNodes = realm.objects(StoredChangeset.self).filter("changesetId == 0 && isUndoCompleted == false")
         for edited in editedNodes {
             let keys = Array(edited.tags.keys)
             if !keys.isEmpty {