website refactor

apps/website/lib/builders/view-data/LoginViewDataBuilder.ts

@@ -0,0 +1,61 @@
+/**
+ * Login View Data Builder
+ * 
+ * Transforms LoginPageDTO into ViewData for the login template.
+ * Deterministic, side-effect free, no business logic.
+ */
+
+import { LoginPageDTO } from '@/lib/services/auth/types/LoginPageDTO';
+
+export interface FormFieldState {
+  value: string | boolean;
+  error?: string;
+  touched: boolean;
+  validating: boolean;
+}
+
+export interface FormState {
+  fields: {
+    email: FormFieldState;
+    password: FormFieldState;
+    rememberMe: FormFieldState;
+  };
+  isValid: boolean;
+  isSubmitting: boolean;
+  submitError?: string;
+  submitCount: number;
+}
+
+export interface LoginViewData {
+  returnTo: string;
+  hasInsufficientPermissions: boolean;
+  showPassword: boolean;
+  showErrorDetails: boolean;
+  formState: FormState;
+  isSubmitting: boolean;
+  submitError?: string;
+}
+
+export class LoginViewDataBuilder {
+  static build(data: LoginPageDTO): LoginViewData {
+    return {
+      returnTo: data.returnTo,
+      hasInsufficientPermissions: data.hasInsufficientPermissions,
+      showPassword: false,
+      showErrorDetails: false,
+      formState: {
+        fields: {
+          email: { value: '', error: undefined, touched: false, validating: false },
+          password: { value: '', error: undefined, touched: false, validating: false },
+          rememberMe: { value: false, error: undefined, touched: false, validating: false },
+        },
+        isValid: true,
+        isSubmitting: false,
+        submitError: undefined,
+        submitCount: 0,
+      },
+      isSubmitting: false,
+      submitError: undefined,
+    };
+  }
+}