refactor(stores): standardize state machine structure

src/stores/payment/helper/order.ts

@@ -0,0 +1,46 @@
+import { ExceptionHandler } from "@/core/errors";
+import type { PaymentPlan } from "@/data/dto/payment";
+
+import type { PaymentState } from "../payment-state";
+
+export const MAX_ORDER_POLLING_MS = 5 * 60 * 1000;
+export const PAYMENT_TIMEOUT_ERROR_MESSAGE =
+  "Payment timed out. Please try again.";
+
+export function toPaymentErrorMessage(error: unknown): string {
+  return ExceptionHandler.message(error);
+}
+
+export function hasOrderPollingTimedOut(
+  startedAt: number | null,
+  now = Date.now(),
+  maxDurationMs = MAX_ORDER_POLLING_MS,
+): boolean {
+  return startedAt !== null && now - startedAt >= maxDurationMs;
+}
+
+export function resetOrderState(): Partial<PaymentState> {
+  return {
+    currentOrderId: null,
+    currentOrderPlanId: null,
+    payParams: null,
+    orderStatus: null,
+    orderPollingStartedAt: null,
+    errorMessage: null,
+  };
+}
+
+export function getSelectedPlan(context: PaymentState): PaymentPlan | undefined {
+  return context.plans.find(
+    (plan) => plan.planId === context.selectedPlanId,
+  );
+}
+
+export function getCurrentOrderPlan(
+  context: PaymentState,
+): PaymentPlan | undefined {
+  if (!context.currentOrderPlanId) return undefined;
+  return context.plans.find(
+    (plan) => plan.planId === context.currentOrderPlanId,
+  );
+}