"use client";

import { useState } from "react";
import Link from "next/link";
import type { CartGroup } from "@/types/api";

/**
 * "دریافت حضوری" vs "ارسال توسط فروشگاه" has no backing field in the Checkout API —
 * the OpenAPI spec's Checkout schema is address_uuid/delivery_type/scheduled_at/
 * payment_method/notes only, with delivery_type meaning express-vs-scheduled timing,
 * not pickup-vs-delivery fulfillment. So this toggle only affects what's *displayed*
 * here; the actual order submission (next screen) still uses the real delivery fee.
 */
export function CheckoutFulfillment({ group }: { group: CartGroup }) {
  const [pickup, setPickup] = useState(false);
  const deliveryFee = pickup ? 0 : group.delivery_fee;
  const payable = group.items_subtotal + deliveryFee;

  return (
    <div className="flex flex-col gap-6 pb-32">
      <section className="flex flex-col gap-3">
        <h2 className="text-[15px] font-bold leading-none text-foreground">نحوه دریافت</h2>

        <label
          className={`flex cursor-pointer flex-col gap-1 rounded-2xl border p-4 ${pickup ? "border-primary-action" : "border-gray-300"}`}
        >
          <input
            type="radio"
            name="fulfillment"
            checked={pickup}
            onChange={() => setPickup(true)}
            className="sr-only"
          />
          {/* DOM order intentionally mirrors the screenshot's left→right layout — see the
              inherited dir="rtl" note on the /cart page. */}
          <div className="flex items-center justify-between">
            <div className="flex items-baseline gap-1.5">
              <span className="text-[14px] font-bold leading-none text-foreground">دریافت حضوری</span>
              <span className="text-[12px] leading-none text-gray-500">رایگان</span>
            </div>
            <span
              className={`flex h-5 w-5 shrink-0 items-center justify-center rounded-full border-2 ${pickup ? "border-primary-action" : "border-gray-300"}`}
            >
              {pickup && <span className="h-2.5 w-2.5 rounded-full bg-primary-action" />}
            </span>
          </div>
          {/* The data for delivery time is mock, it should be provided from the backend*/}
          <span className="text-[12px] leading-none text-gray-500">آماده در ۱۵ دقیقه</span>
        </label>

        <label
          className={`flex cursor-pointer flex-col gap-1 rounded-2xl border p-4 ${!pickup ? "border-primary-action" : "border-gray-300"}`}
        >
          <input
            type="radio"
            name="fulfillment"
            checked={!pickup}
            onChange={() => setPickup(false)}
            className="sr-only"
          />
          <div className="flex items-center justify-between">
            <div className="flex items-baseline gap-1.5">
              <span className="text-[14px] font-bold leading-none text-foreground">ارسال توسط فروشگاه</span>
              <span className="text-[12px] leading-none text-gray-500">
                {group.delivery_fee.toLocaleString("fa-IR")} تومان
              </span>
            </div>
            <span
              className={`flex h-5 w-5 shrink-0 items-center justify-center rounded-full border-2 ${!pickup ? "border-primary-action" : "border-gray-300"}`}
            >
              {!pickup && <span className="h-2.5 w-2.5 rounded-full bg-primary-action" />}
            </span>
          </div>
          {/* The data for delivery time is mock, it should be provided from the backend*/}
          <span className="text-[12px] leading-none text-gray-500">۲۵-۳۵ دقیقه</span>
        </label>
      </section>

      <section className="flex flex-col gap-3 rounded-2xl bg-[#F4F4F5] px-4 py-5">
        <div className="flex items-center justify-between text-[13px] text-gray-600">
          <span>جمع کالاها</span>
          <span>{group.items_subtotal.toLocaleString("fa-IR")} تومان</span>
        </div>
        <div className="flex items-center justify-between text-[13px] text-gray-600">
          <span>هزینه ارسال</span>
          <span>{deliveryFee.toLocaleString("fa-IR")} تومان</span>
        </div>
        <div className="flex items-center justify-between border-t border-gray-300 pt-3">
          <span className="text-[14px] font-semibold leading-none text-foreground">مبلغ قابل پرداخت</span>
          <span className="text-[16px] font-bold leading-none text-foreground">
            {payable.toLocaleString("fa-IR")} تومان
          </span>
        </div>
      </section>

      <div className="fixed inset-x-0 bottom-0 z-10 mx-auto flex w-full max-w-md flex-col items-center bg-white px-4 pt-4 pb-6 shadow-[0_-4px_15px_0_rgba(0,0,0,0.102)]">
        {/* Same confirm+pay screen either way — it shows the address section only for
            delivery, and folds the delivery fee into the total only for delivery. */}
        <Link
          href={`/checkout/${group.store.uuid}/confirm?fulfillment=${pickup ? "pickup" : "delivery"}`}
          className="w-full"
        >
          <button
            type="button"
            className="w-full rounded-2xl bg-primary-action py-4 text-[15px] font-bold text-white"
          >
            پرداخت و ثبت سفارش — {payable.toLocaleString("fa-IR")} تومان
          </button>
        </Link>
      </div>
    </div>
  );
}