Merged in feat/BOOK-747-alert-extra-cost (pull request #3455)

feat(BOOK-747): show extra cost alert if reward night or voucher

* feat(BOOK-747): show extra cost alert if reward night or voucher

* feat(BOOK-747): use enum

* feat(BOOK-747): refactor

* feat(BOOK-747): add underline to trigger text


Approved-by: Anton Gunnarsson

packages/booking-flow/lib/components/SelectRate/RoomsContainer/ExtraCostAlert/extraCostAlert.module.css

@@ -0,0 +1,5 @@
+.alert {
+  max-width: var(--max-width-page);
+  margin: 0 auto;
+  padding: var(--Space-x5) 0 0;
+}

packages/booking-flow/lib/components/SelectRate/RoomsContainer/ExtraCostAlert/index.tsx

@@ -0,0 +1,92 @@
+"use client"
+import { useIntl } from "react-intl"
+
+import { AlertTypeEnum } from "@scandic-hotels/common/constants/alert"
+import { RateEnum } from "@scandic-hotels/common/constants/rate"
+import { Alert } from "@scandic-hotels/design-system/Alert"
+import TermModal from "@scandic-hotels/design-system/TermModal"
+
+import { useSelectRateContext } from "../../../../contexts/SelectRate/SelectRateContext"
+import { useRateTitles } from "../Rooms/RoomsList/RoomListItem/Rates/useRateTitles"
+
+import styles from "./extraCostAlert.module.css"
+
+import type { RouterOutput } from "@scandic-hotels/trpc/client"
+
+type RoomAvailability = Extract<
+  RouterOutput["hotel"]["availability"]["selectRate"]["rooms"][0],
+  { roomConfigurations: unknown }
+>
+
+export default function ExtraCostAlert() {
+  const intl = useIntl()
+
+  const { availability, input: rooms } = useSelectRateContext()
+  const rateTitles = useRateTitles()
+
+  if (!availability.data) {
+    return null
+  }
+
+  const availableRooms = availability.data.filter(
+    (room): room is RoomAvailability => !("error" in room)
+  )
+
+  if (availableRooms.length === 0) {
+    return null
+  }
+
+  const hasMoreThanTwoAdults = rooms.data?.booking.rooms.some(
+    (room) => room.adults > 2
+  )
+
+  const isRewardNightOrVoucher = availableRooms.some((room) => {
+    return room.roomConfigurations.some((config) =>
+      config.products?.some((product) =>
+        Array.isArray(product)
+          ? product.some((p) => "redemption" in p)
+          : "voucher" in product
+      )
+    )
+  })
+
+  const rateDefinition = availableRooms.find(
+    (room) => room.rateDefinitions.length
+  )?.rateDefinitions[0]
+
+  const rateTermDetails = [
+    {
+      title: rateDefinition?.title ?? "",
+      terms: rateDefinition?.generalTerms ?? [],
+    },
+  ]
+
+  if (!(isRewardNightOrVoucher && hasMoreThanTwoAdults && rateDefinition)) {
+    return null
+  }
+
+  return (
+    <div className={styles.alert}>
+      <Alert
+        type={AlertTypeEnum.Info}
+        heading={intl.formatMessage({
+          id: "booking.alert.extraguests",
+          defaultMessage: "Extra guest(s)",
+        })}
+        text={intl.formatMessage({
+          id: "booking.alert.extraBeds.text",
+          defaultMessage:
+            "When booking for more than 2 guests, an additional fee will apply per person, see link for details.",
+        })}
+        slot={
+          <TermModal
+            rateTitle={rateTitles[RateEnum.flex].title}
+            paymentTerm={rateTitles[RateEnum.flex].paymentTerm}
+            rateTermDetails={rateTermDetails}
+            variant="text"
+          />
+        }
+      />
+    </div>
+  )
+}