Adds load state

LeStorage/Store.swift

@@ -253,6 +253,10 @@ open class Store {
         }
     }
     
+    public func collectionsAllLoaded() -> Bool {
+        return self._collections.values.allSatisfy { $0.hasLoadedLocally }
+    }
+    
     fileprivate var _validIds: [String] = []
     
     fileprivate func _migrate<T : Storable>(_ collection: StoredCollection<T>, identifier: StoreIdentifier, type: T.Type) {

LeStorage/StoredCollection.swift

@@ -23,6 +23,7 @@ protocol CollectionHolder {
 protocol SomeCollection: CollectionHolder, Identifiable {
     var resourceName: String { get }
     var synchronized: Bool { get }
+    var hasLoadedLocally: Bool { get }
 
     func allItems() -> [any Storable]
     
@@ -72,7 +73,10 @@ public class StoredCollection<T: Storable>: RandomAccessCollection, SomeCollecti
     
     /// Denotes a collection that loads and writes asynchronously
     fileprivate var asynchronousIO: Bool = true
-
+    
+    /// Indicates if the collection has loaded locally, with or without a file
+    fileprivate(set) public var hasLoadedLocally: Bool = false
+    
     /// Indicates if the collection has loaded objects from the server
     fileprivate(set) public var hasLoadedFromServer: Bool = false
     
@@ -136,6 +140,9 @@ public class StoredCollection<T: Storable>: RandomAccessCollection, SomeCollecti
     
     /// Decodes the json file into the items array
     fileprivate func _decodeJSONFile() throws {
+        
+        defer { self.hasLoadedLocally = true }
+        
         let fileURL = try self._store.fileURL(type: T.self)
         
         if FileManager.default.fileExists(atPath: fileURL.path()) {
@@ -228,6 +235,7 @@ public class StoredCollection<T: Storable>: RandomAccessCollection, SomeCollecti
 
     }
     
+    /// Sends a POST request for the instance, and changes the collection to perform a write
     public func writeChangeAndInsertOnServer(instance: T) {
         defer {
             self._hasChanged = true