⚠️ Start to fix subclass name issue

Author: benlmyers

Sources/EasyFirebase/Services/Auth/EasyUser.swift

@@ -84,11 +84,6 @@ open class EasyUser: IndexedDocument {
   /// The user's email address.
   public internal(set) var email: String
 
-  /// The user's username.
-  ///
-  /// This value is automatically generated based on the user's email upon account creation.
-  public internal(set) var username: String
-  
   /// The user's display name.
   ///
   /// This value is automatically updated to a suggested display name when an account is created.
@@ -100,6 +95,13 @@ open class EasyUser: IndexedDocument {
   /// You can specify a default profile image by setting `EasyAuth.defaultProfileImageURLs`.
   public var profileImageURL: URL?
 
+  // MARK: - Objective C Exposed Mixed Properties
+  
+  /// The user's username.
+  ///
+  /// This value is automatically generated based on the user's email upon account creation.
+  @objc public internal(set) var username: String
+  
   // MARK: - Inherited Properties
 
   public var index: Int?
@@ -200,10 +202,11 @@ public extension EasyUser {
    - parameter suggestionGenerator: A function that takes in a username and provides a new username (hopefully unique). See **Discussion** for more information.
    - parameter completion: The completion handler. See **Discussion** for more information.
    */
-  func safelyUpdateUsername(to newUsername: String,
-                            suggesting suggestionGenerator: @escaping (String) -> String = defaultSuggestionGenerator,
-                            completion: @escaping (Error?, String?) -> Void) {
-    EasyAuth.checkUsernameAvailable(newUsername, forUserType: Self.self) { available in
+  func safelyUpdateUsername<T>(to newUsername: String,
+                               ofType type: T.Type,
+                               suggesting suggestionGenerator: @escaping (String) -> String = defaultSuggestionGenerator,
+                               completion: @escaping (Error?, String?) -> Void) where T: EasyUser {
+    EasyAuth.checkUsernameAvailable(newUsername, forUserType: T.self) { available in
       if available {
         self.unsafelyUpdateUsername(to: newUsername) { error in
           completion(error, nil)
@@ -227,7 +230,7 @@ public extension EasyUser {
    */
   func unsafelyUpdateUsername(to newUsername: String, completion: @escaping (Error?) -> Void = { _ in }) {
     self.username = newUsername
-    set(\.username)
+    set(\.username, completion: completion)
   }
 
   /**

Sources/EasyFirebase/Services/Firestore/Querying.swift

@@ -99,7 +99,8 @@ extension EasyFirestore {
     }
 
     private static func `where`<T, V>(_ conditions: [Condition<T, V>], order: Order?, limit: Int?, completion: @escaping ([T]) -> Void) where T: Document {
-      let collection = db.collection(String(describing: T.self))
+      let collectionName = String(describing: T.self)
+      let collection = db.collection(collectionName)
       guard conditions.count > 0 else { return }
       var query: Query = conditions.first!.apply(to: collection)
       for condition in conditions.dropFirst() {
@@ -126,8 +127,8 @@ extension EasyFirestore {
             if let object = object {
               arr.append(object)
             }
-            completion(arr)
           }
+          completion(arr)
         }
       })
     }

Sources/EasyFirebase/Services/Firestore/Storage.swift

@@ -51,7 +51,8 @@ extension EasyFirestore {
      */
     public static func set<T, U>(_ path: KeyPath<T, U>, in document: T, completion: @escaping (Error?) -> Void = { _ in }) where T: Document, U: Codable {
       let value = document[keyPath: path]
-      db.collection(String(describing: T.self)).document(document.id).updateData([path.string: value], completion: completion)
+      let collectionName = String(describing: T.self)
+      db.collection(collectionName).document(document.id).updateData([path.string: value], completion: completion)
     }
 
     /**