view data fixes

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

@@ -0,0 +1,27 @@
+import { ViewModel } from "../contracts/view-models/ViewModel";
+import type { InvoiceViewData } from "@/lib/view-data/BillingViewData";
+
+export class InvoiceViewModel extends ViewModel {
+  private readonly data: InvoiceViewData;
+
+  constructor(data: InvoiceViewData) {
+    super();
+    this.data = data;
+  }
+
+  get id(): string { return this.data.id; }
+  get invoiceNumber(): string { return this.data.invoiceNumber; }
+  get date(): string { return this.data.date; }
+  get dueDate(): string { return this.data.dueDate; }
+  get amount(): number { return this.data.amount; }
+  get vatAmount(): number { return this.data.vatAmount; }
+  get totalAmount(): number { return this.data.totalAmount; }
+  get status(): string { return this.data.status; }
+  get description(): string { return this.data.description; }
+  get sponsorshipType(): string { return this.data.sponsorshipType; }
+  get pdfUrl(): string { return this.data.pdfUrl; }
+  get totalAmountFormatted(): string { return this.data.formattedTotalAmount; }
+  get vatAmountFormatted(): string { return this.data.formattedVatAmount; }
+  get dateFormatted(): string { return this.data.formattedDate; }
+  get isOverdue(): boolean { return this.data.isOverdue; }
+}