website refactor

apps/website/lib/builders/view-models/SignupViewModelBuilder.ts

@@ -0,0 +1,40 @@
+/**
+ * Signup ViewModel Builder
+ * 
+ * Transforms API DTOs into SignupViewModel for client-side state management.
+ * Deterministic, side-effect free, no business logic.
+ */
+
+import { SignupViewData } from '@/lib/builders/view-data/SignupViewDataBuilder';
+import { SignupViewModel, SignupFormState, SignupUIState } from '@/lib/view-models/auth/SignupViewModel';
+
+export class SignupViewModelBuilder {
+  static build(viewData: SignupViewData): SignupViewModel {
+    const formState: SignupFormState = {
+      fields: {
+        firstName: { value: '', error: undefined, touched: false, validating: false },
+        lastName: { value: '', error: undefined, touched: false, validating: false },
+        email: { value: '', error: undefined, touched: false, validating: false },
+        password: { value: '', error: undefined, touched: false, validating: false },
+        confirmPassword: { value: '', error: undefined, touched: false, validating: false },
+      },
+      isValid: true,
+      isSubmitting: false,
+      submitError: undefined,
+      submitCount: 0,
+    };
+
+    const uiState: SignupUIState = {
+      showPassword: false,
+      showConfirmPassword: false,
+    };
+
+    return new SignupViewModel(
+      viewData.returnTo,
+      formState,
+      uiState,
+      false,
+      null
+    );
+  }
+}