新功能(#113): 新增促销管理后台页面

apps/admin/src/sections/promo/utils.ts

@@ -0,0 +1,22 @@
+import { unitConversion } from "@workspace/ui/utils/unit-conversions";
+
+export const promoRuleTypes: API.PromoRuleType[] = [
+  "inactive_user",
+  "new_user",
+  "campaign",
+];
+
+export function formatCurrency(value?: number) {
+  if (typeof value !== "number") return "--";
+  return `$${unitConversion("centsToDollars", value)}`;
+}
+
+export function parseOptionalNumber(value?: string) {
+  if (!value) return;
+  const parsed = Number(value);
+  return Number.isFinite(parsed) ? parsed : undefined;
+}
+
+export function getSubscribeUnitPrice(subscribe?: API.SubscribeItem) {
+  return typeof subscribe?.unit_price === "number" ? subscribe.unit_price : 0;
+}