fix: twitter provider update to be pass through withTwitterSignIn()

Author: russellwheatley

FirebaseSwiftUI/FirebaseTwitterSwiftUI/Sources/Services/AuthService+Twitter.swift

@@ -0,0 +1,30 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//
+//  AuthService+Twitter.swift
+//  FirebaseUI
+//
+//  Created by Russell Wheatley on 01/05/2025.
+//
+
+import FirebaseAuthSwiftUI
+
+public extension AuthService {
+  @discardableResult
+  func withTwitterSignIn(provider _: [String]? = nil) -> AuthService {
+    registerProvider(provider: TwitterProviderAuthUI())
+    return self
+  }
+}

FirebaseSwiftUI/FirebaseTwitterSwiftUI/Sources/Services/TwitterProviderAuthUI.swift

@@ -17,7 +17,14 @@ import FirebaseAuthSwiftUI
 import FirebaseCore
 import SwiftUI
 
-public class TwitterProviderAuthUI: AuthProviderSwift, AuthProviderUI {
+public class TwitterProviderSwift: AuthProviderSwift {
+  public let scopes: [String]
+  let providerId = "twitter.com"
+
+  public init(scopes: [String] = ["user.readwrite"]) {
+    self.scopes = scopes
+  }
+
   @MainActor public func createAuthCredential() async throws -> AuthCredential {
     let provider = OAuthProvider(providerID: providerId)
     return try await withCheckedThrowingContinuation { continuation in
@@ -35,19 +42,22 @@ public class TwitterProviderAuthUI: AuthProviderSwift, AuthProviderUI {
       }
     }
   }
+}
+
+public class TwitterProviderAuthUI: TwitterProviderSwift, AuthProviderUI {
+  public init() {
+    super.init()
+  }
 
-  public var provider: AuthProviderSwift { self }
   public let id: String = "twitter"
-  let providerId = "twitter.com"
+  public var provider: AuthProviderSwift { self }
 
   @MainActor public func authButton() -> AnyView {
     AnyView(SignInWithTwitterButton())
   }
 
-// TODO: need to implement delete user protocol
+  // TODO: need to implement delete user protocol
 //  @MainActor public func deleteUser(user _: User) async throws {
 //    <#code#>
 //  }
-
-  public init() {}
 }