view data fixes

apps/website/lib/view-models/EmailSignupViewModel.ts

@@ -4,15 +4,34 @@
  * View model for email signup responses
  */
 import { ViewModel } from "../contracts/view-models/ViewModel";
+import type { EmailSignupViewData } from "../view-data/EmailSignupViewData";
 
 export class EmailSignupViewModel extends ViewModel {
-  readonly email: string;
-  readonly message: string;
-  readonly status: 'success' | 'error' | 'info';
+  constructor(private readonly viewData: EmailSignupViewData) {
+    super();
+  }
 
-  constructor(email: string, message: string, status: 'success' | 'error' | 'info') {
-    this.email = email;
-    this.message = message;
-    this.status = status;
+  get email(): string {
+    return this.viewData.email;
+  }
+
+  get message(): string {
+    return this.viewData.message;
+  }
+
+  get status(): EmailSignupViewData["status"] {
+    return this.viewData.status;
+  }
+
+  get isSuccess(): boolean {
+    return this.status === 'success';
+  }
+
+  get isError(): boolean {
+    return this.status === 'error';
+  }
+
+  get isInfo(): boolean {
+    return this.status === 'info';
   }
 }