feat(events): unify registration checkout and receipts

src/lib/registration-hub-display.ts

@@ -0,0 +1,80 @@
+import { getEventRegistrationState, type EventAvailabilityInput } from "./event-ui.ts";
+import type { RegistrationHubState } from "./types.ts";
+
+export type RegistrationHubGate =
+  | "registration_ended"
+  | "capacity_full"
+  | "registration_not_started"
+  | null;
+
+export type RegistrationHubGateCopy = {
+  status: string;
+  title: string;
+  subtitle: string;
+};
+
+export function getRegistrationHubGate(
+  event: EventAvailabilityInput,
+  now = Date.now(),
+): RegistrationHubGate {
+  if (event.status !== "published") return "registration_ended";
+
+  const state = getEventRegistrationState(event, now).state;
+  if (state === "closed" || state === "unavailable") return "registration_ended";
+  if (state === "full") return "capacity_full";
+  if (state === "not_started") return "registration_not_started";
+  return null;
+}
+
+export function getRegistrationHubGateCopy(
+  gate: RegistrationHubGate,
+): RegistrationHubGateCopy | null {
+  if (gate === "registration_ended") {
+    return {
+      status: "پایان زمان ثبت‌نام",
+      title: "پایان مهلت ثبت‌نام",
+      subtitle: "",
+    };
+  }
+
+  if (gate === "capacity_full") {
+    return {
+      status: "تکمیل ظرفیت",
+      title: "ظرفیت رویداد تکمیل شده",
+      subtitle: "",
+    };
+  }
+
+  if (gate === "registration_not_started") {
+    return {
+      status: "ثبت‌نام هنوز آغاز نشده",
+      title: "مهلت ثبت‌نام هنوز آغاز نشده است",
+      subtitle: "",
+    };
+  }
+
+  return null;
+}
+
+export function getRegistrationHubDisplayState(
+  state: RegistrationHubState,
+): RegistrationHubState {
+  return state === "legacy_pending" ? "verification_pending" : state;
+}
+
+export function normalizeCouponAmounts(raw: {
+  discount_amount?: number | null;
+  final_price?: number | null;
+}) {
+  return {
+    discount_amount: (raw.discount_amount ?? 0) / 10,
+    final_price: (raw.final_price ?? 0) / 10,
+  };
+}
+
+export function getFinalPriceToman(
+  eventPriceInRials: number,
+  couponFinalPriceInToman?: number | null,
+) {
+  return couponFinalPriceInToman ?? Math.floor(eventPriceInRials / 10);
+}