fix: refactors [#248]

Author: shinyford

packages/clerk_auth/lib/src/clerk_auth/auth.dart

@@ -438,7 +438,7 @@ class Auth {
 
       case SignIn signIn
           when signIn.status.needsFactor &&
-              strategy == Strategy.password &&
+              strategy.isPassword &&
               password is String:
         await _api
             .attemptSignIn(

packages/clerk_auth/lib/src/models/client/sign_in.dart

@@ -112,6 +112,9 @@ class SignIn with InformativeToStringMixin {
         _ => const [],
       };
 
+  /// can we handle the password strategy?
+  bool get canUsePassword => factors.any((f) => f.strategy.isPassword);
+
   /// Find the [Factor] for this [SignIn] that matches
   /// the [strategy] and [stage]
   ///

packages/clerk_auth/lib/src/models/client/strategy.dart

@@ -157,6 +157,9 @@ class Strategy {
   /// is known?
   bool get isKnown => isUnknown == false;
 
+  /// is password?
+  bool get isPassword => this == password;
+
   /// is some variety of oauth?
   bool get isOauth => name == _oauth || isOauthCustom || isOauthToken;
 

packages/clerk_flutter/lib/src/widgets/authentication/clerk_sign_in_panel.dart

@@ -108,7 +108,8 @@ class _ClerkSignInPanelState extends State<ClerkSignInPanel>
   bool _requiresBack(clerk.SignIn signIn) => signIn.status.isUnknown == false;
 
   bool _requiresContinue(clerk.SignIn signIn) =>
-      _strategy.isUnknown || _strategy.requiresPassword;
+      signIn.status.isUnknown ||
+      (signIn.verification == null && signIn.canUsePassword);
 
   @override
   Widget build(BuildContext context) {
@@ -280,8 +281,7 @@ class _FactorList extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     final l10ns = ClerkAuth.localizationsOf(context);
-    final hasPassword =
-        factors.any((f) => f.strategy == clerk.Strategy.password);
+    final hasPassword = factors.any((f) => f.strategy.isPassword);
     final otherFactors = factors.where(StrategyButton.supports).toList();
 
     return Column(

packages/clerk_flutter/lib/src/widgets/ui/input_label.dart

@@ -49,8 +49,8 @@ class InputLabel extends StatelessWidget {
             localizations.requiredField,
             color: ClerkColors.incarnadine,
           )
-        else if (isOptional == false) //
-          _LabelModifier(localizations.requiredField),
+        else if (isOptional == true) //
+          _LabelModifier(localizations.optional),
         if (trailing case Widget trailing) //
           trailing,
       ],