Fix platform build failures

FirebaseAuth/Sources/Swift/Utilities/AuthRecaptchaVerifier.swift

@@ -12,69 +12,113 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#if os(iOS)
+import Foundation
 
-  import Foundation
+#if SWIFT_PACKAGE
+  import FirebaseAuthInternal
+#endif
 
-  #if SWIFT_PACKAGE
-    import FirebaseAuthInternal
-  #endif
+#if os(iOS)
   import RecaptchaInterop
+#endif
 
-  @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
-  class AuthRecaptchaConfig {
-    var siteKey: String?
-    let enablementStatus: [AuthRecaptchaProvider: AuthRecaptchaEnablementStatus]
+@available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
+class AuthRecaptchaConfig {
+  var siteKey: String?
+  let enablementStatus: [AuthRecaptchaProvider: AuthRecaptchaEnablementStatus]
 
-    init(siteKey: String? = nil,
-         enablementStatus: [AuthRecaptchaProvider: AuthRecaptchaEnablementStatus]) {
-      self.siteKey = siteKey
-      self.enablementStatus = enablementStatus
-    }
+  init(siteKey: String? = nil,
+       enablementStatus: [AuthRecaptchaProvider: AuthRecaptchaEnablementStatus]) {
+    self.siteKey = siteKey
+    self.enablementStatus = enablementStatus
   }
+}
 
-  @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
-  enum AuthRecaptchaEnablementStatus: String, CaseIterable {
-    case enforce = "ENFORCE"
-    case audit = "AUDIT"
-    case off = "OFF"
+@available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
+enum AuthRecaptchaEnablementStatus: String, CaseIterable {
+  case enforce = "ENFORCE"
+  case audit = "AUDIT"
+  case off = "OFF"
 
-    // Convenience property for mapping values
-    var stringValue: String { rawValue }
-  }
+  // Convenience property for mapping values
+  var stringValue: String { rawValue }
+}
 
-  @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
-  enum AuthRecaptchaProvider: String, CaseIterable {
-    case password = "EMAIL_PASSWORD_PROVIDER"
-    case phone = "PHONE_PROVIDER"
+@available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
+enum AuthRecaptchaProvider: String, CaseIterable {
+  case password = "EMAIL_PASSWORD_PROVIDER"
+  case phone = "PHONE_PROVIDER"
 
-    // Convenience property for mapping values
-    var stringValue: String { rawValue }
-  }
+  // Convenience property for mapping values
+  var stringValue: String { rawValue }
+}
 
-  @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
-  enum AuthRecaptchaAction: String {
-    case defaultAction
-    case signInWithPassword
-    case getOobCode
-    case signUpPassword
-    case sendVerificationCode
-    case mfaSmsSignIn
-    case mfaSmsEnrollment
+@available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
+enum AuthRecaptchaAction: String {
+  case defaultAction
+  case signInWithPassword
+  case getOobCode
+  case signUpPassword
+  case sendVerificationCode
+  case mfaSmsSignIn
+  case mfaSmsEnrollment
+
+  // Convenience property for mapping values
+  var stringValue: String { rawValue }
+}
+
+@available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
+class AuthRecaptchaVerifier {
+  weak var auth: Auth?
+  private var agentConfig: AuthRecaptchaConfig?
+  private var tenantConfigs: [String: AuthRecaptchaConfig] = [:]
+  private var recaptchaClient: RCARecaptchaClientProtocol?
+  private let kRecaptchaVersion = "RECAPTCHA_ENTERPRISE"
+
+  init() {}
 
-    // Convenience property for mapping values
-    var stringValue: String { rawValue }
+  func verify(forceRefresh: Bool, action: AuthRecaptchaAction) async throws -> String {
+    try await retrieveRecaptchaConfig(forceRefresh: forceRefresh)
+    guard let siteKey = siteKey() else {
+      throw AuthErrorUtils.recaptchaSiteKeyMissing()
+    }
+    let actionString = action.stringValue
+    #if !(COCOAPODS || SWIFT_PACKAGE)
+      // No recaptcha on internal build system.
+      return actionString
+    #else
+      let (token, error, linked, actionCreated) = await recaptchaToken(
+        siteKey: siteKey,
+        actionString: actionString,
+        fakeToken: "NO_RECAPTCHA"
+      )
+
+      guard linked else {
+        throw AuthErrorUtils.recaptchaSDKNotLinkedError()
+      }
+      guard actionCreated else {
+        throw AuthErrorUtils.recaptchaActionCreationFailed()
+      }
+      if let error {
+        throw error
+      }
+      if token == "NO_RECAPTCHA" {
+        AuthLog.logInfo(code: "I-AUT000031",
+                        message: "reCAPTCHA token retrieval failed. NO_RECAPTCHA sent as the fake code.")
+      } else {
+        AuthLog.logInfo(
+          code: "I-AUT000030",
+          message: "reCAPTCHA token retrieval succeeded."
+        )
+      }
+      return token
+    #endif // !(COCOAPODS || SWIFT_PACKAGE)
   }
+}
 
+#if os(iOS)
   @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
-  class AuthRecaptchaVerifier {
-    weak var auth: Auth?
-    private var agentConfig: AuthRecaptchaConfig?
-    private var tenantConfigs: [String: AuthRecaptchaConfig] = [:]
-    private var recaptchaClient: RCARecaptchaClientProtocol?
-    private let kRecaptchaVersion = "RECAPTCHA_ENTERPRISE"
-    init() {}
-
+  extension AuthRecaptchaVerifier {
     func siteKey() -> String? {
       if let tenantID = auth?.tenantID {
         if let config = tenantConfigs[tenantID] {
@@ -99,44 +143,6 @@
       }
     }
 
-    func verify(forceRefresh: Bool, action: AuthRecaptchaAction) async throws -> String {
-      try await retrieveRecaptchaConfig(forceRefresh: forceRefresh)
-      guard let siteKey = siteKey() else {
-        throw AuthErrorUtils.recaptchaSiteKeyMissing()
-      }
-      let actionString = action.stringValue
-      #if !(COCOAPODS || SWIFT_PACKAGE)
-        // No recaptcha on internal build system.
-        return actionString
-      #else
-        let (token, error, linked, actionCreated) = await recaptchaToken(
-          siteKey: siteKey,
-          actionString: actionString,
-          fakeToken: "NO_RECAPTCHA"
-        )
-
-        guard linked else {
-          throw AuthErrorUtils.recaptchaSDKNotLinkedError()
-        }
-        guard actionCreated else {
-          throw AuthErrorUtils.recaptchaActionCreationFailed()
-        }
-        if let error {
-          throw error
-        }
-        if token == "NO_RECAPTCHA" {
-          AuthLog.logInfo(code: "I-AUT000031",
-                          message: "reCAPTCHA token retrieval failed. NO_RECAPTCHA sent as the fake code.")
-        } else {
-          AuthLog.logInfo(
-            code: "I-AUT000030",
-            message: "reCAPTCHA token retrieval succeeded."
-          )
-        }
-        return token
-      #endif // !(COCOAPODS || SWIFT_PACKAGE)
-    }
-
     private func recaptchaToken(siteKey: String,
                                 actionString: String,
                                 fakeToken: String) async -> (token: String, error: Error?,