src/app/(customer)/(shop)/checkout/[store]/confirm/page.tsx

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+import Link from "next/link";
+import { notFound } from "next/navigation";
+import { ArrowRight } from "lucide-react";
+import { getCart } from "@/lib/api/cart";
+import { getAddresses } from "@/lib/api/addresses";
+import { requireSession } from "@/lib/auth/session";
+import { CheckoutPayment } from "@/components/customer/checkout-payment";
+
+export default async function ConfirmPaymentPage({ params }: PageProps<"/checkout/[store]/confirm">) {
+  const { store } = await params;
+  await requireSession(`/checkout/${store}/confirm`);
+
+  const [cart, addresses] = await Promise.all([
+    getCart(),
+    // Known gap (FRONTEND_GUIDE.md §7): addresses GET can 403 on the current OAuth
+    // scope — fall back to empty rather than crashing this page over it.
+    getAddresses().catch(() => []),
+  ]);
+  const group = cart.groups.find((g) => g.store.uuid === store);
+  if (!group) notFound();
+
+  return (
+    <main className="mx-auto flex w-full max-w-md flex-1 flex-col gap-6 px-4 pt-4 pb-6">
+      {/* Same header pattern as /cart and /checkout/[store]. */}
+      <div className="flex items-center justify-start gap-3">
+        <Link href={`/checkout/${store}`} aria-label="بازگشت">
+          <ArrowRight className="h-5 w-5 text-foreground" />
+        </Link>
+        <h1 className="text-[18px] font-bold leading-none text-foreground">تأیید و پرداخت</h1>
+      </div>
+
+      <CheckoutPayment group={group} addresses={addresses} />
+    </main>
+  );
+}

src/components/customer/checkout-payment.tsx

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+"use client";
+
+import { useState, useTransition } from "react";
+import { useRouter } from "next/navigation";
+import { submitCheckout } from "@/lib/api/checkout";
+import type { Address, CartGroup, PaymentMethod } from "@/types/api";
+
+/** Exact labels per the OpenAPI PaymentMethodEnum description ("(آنلاین)" added to match the screenshot). */
+const PAYMENT_OPTIONS: { value: PaymentMethod; label: string }[] = [
+  { value: "wallet", label: "کیف پول وینسو" },
+  { value: "online", label: "درگاه بانکی (آنلاین)" },
+  { value: "cash_on_delivery", label: "پرداخت در محل" },
+];
+
+export function CheckoutPayment({ group, addresses }: { group: CartGroup; addresses: Address[] }) {
+  const router = useRouter();
+  const [method, setMethod] = useState<PaymentMethod>("wallet");
+  const [error, setError] = useState<string | null>(null);
+  const [isPending, startTransition] = useTransition();
+
+  // Pickup flow — no delivery fee, matches the fulfillment screen's "دریافت حضوری" total.
+  const payable = group.items_subtotal;
+
+  function handlePay() {
+    setError(null);
+    const addressUuid = addresses.find((a) => a.is_default)?.uuid ?? addresses[0]?.uuid;
+    if (!addressUuid) {
+      setError("برای ثبت سفارش ابتدا یک آدرس اضافه کنید.");
+      return;
+    }
+    startTransition(async () => {
+      // submitCheckout processes the whole cart at once (splits into per-store orders
+      // server-side), not just this store — see PageProps note on the confirm page.
+      const result = await submitCheckout({
+        address_uuid: addressUuid,
+        delivery_type: "express",
+        scheduled_at: null,
+        payment_method: method,
+        notes: "",
+      });
+      if (result.ok) {
+        router.push(`/order-groups/${result.data.uuid}`);
+      } else {
+        setError(result.message);
+      }
+    });
+  }
+
+  return (
+    <div className="flex flex-col gap-6 pb-44">
+      <section className="flex flex-col gap-3">
+        <h2 className="text-[15px] font-bold leading-none text-foreground">روش پرداخت</h2>
+
+        {PAYMENT_OPTIONS.map((option) => {
+          const selected = method === option.value;
+          return (
+            <label
+              key={option.value}
+              className={`flex cursor-pointer items-center justify-between rounded-2xl border p-4 ${selected ? "border-primary-action" : "border-gray-200"}`}
+            >
+              <input
+                type="radio"
+                name="payment"
+                checked={selected}
+                onChange={() => setMethod(option.value)}
+                className="sr-only"
+              />
+              {/* DOM order intentionally mirrors the screenshot's left→right layout — see
+                  the inherited dir="rtl" note on the /cart page. No wallet balance line:
+                  Winofy's API has no wallet-balance endpoint — that's a Gooyal-side
+                  feature (see the wallet.wallet:get_balance OAuth scope) with no
+                  documented endpoint available here, so it isn't faked. */}
+              <span className="text-[14px] font-bold leading-none text-foreground">{option.label}</span>
+              <span
+                className={`flex h-5 w-5 shrink-0 items-center justify-center rounded-full border-2 ${selected ? "border-primary-action" : "border-gray-300"}`}
+              >
+                {selected && <span className="h-2.5 w-2.5 rounded-full bg-primary-action" />}
+              </span>
+            </label>
+          );
+        })}
+      </section>
+
+      {error && <p className="text-end text-sm text-error">{error}</p>}
+
+      <div className="fixed inset-x-0 bottom-0 z-10 mx-auto flex w-full max-w-md flex-col gap-3 bg-white px-4 pt-4 pb-6 shadow-[0_-4px_15px_0_rgba(0,0,0,0.102)]">
+        <div className="flex items-center justify-between text-[13px] text-gray-600">
+          <span>
+            {group.items.length.toLocaleString("fa-IR")} کالا از {group.store.name}
+          </span>
+          <span>{payable.toLocaleString("fa-IR")} تومان</span>
+        </div>
+        <div className="flex items-center justify-between mb-2">
+          <span className="text-[14px] font-semibold leading-none text-foreground">جمع کل</span>
+          <span className="text-[16px] font-bold leading-none text-foreground">
+            {payable.toLocaleString("fa-IR")} تومان
+          </span>
+        </div>
+        <button
+          type="button"
+          onClick={handlePay}
+          disabled={isPending}
+          className="w-full rounded-2xl bg-primary-action py-4 text-[15px] font-bold text-white disabled:opacity-40"
+        >
+          {isPending ? "در حال ثبت سفارش..." : `پرداخت ${payable.toLocaleString("fa-IR")} تومان`}
+        </button>
+      </div>
+    </div>
+  );
+}