web/packages/booking-flow/lib/components/EnterDetails/PriceChangeDialog/index.tsx

import { Dialog, Modal, ModalOverlay } from "react-aria-components"
import { useIntl } from "react-intl"

import { formatPrice } from "@scandic-hotels/common/utils/numberFormatting"
import Caption from "@scandic-hotels/design-system/Caption"
import { MaterialIcon } from "@scandic-hotels/design-system/Icons/MaterialIcon"
import { OldDSButton as Button } from "@scandic-hotels/design-system/OldDSButton"
import { Typography } from "@scandic-hotels/design-system/Typography"

import { useEnterDetailsStore } from "../../../stores/enter-details"
import { calculateTotalRoomPrice } from "../Payment/helpers"
import PriceChangeSummary from "./PriceChangeSummary"

import styles from "./priceChangeDialog.module.css"

import type { PriceChangeData } from "../PriceChangeData"

type PriceDetailsState = {
  newTotalPrice: number
  roomPrices: { prevPrice: number; newPrice?: number }[]
}

type PriceChangeDialogProps = {
  isOpen: boolean
  priceChangeData: PriceChangeData
  prevTotalPrice: number
  currency: string
  onCancel: () => void
  onAccept: () => void
}

export default function PriceChangeDialog({
  isOpen,
  priceChangeData,
  prevTotalPrice,
  currency,
  onCancel,
  onAccept,
}: PriceChangeDialogProps) {
  const intl = useIntl()
  const title = intl.formatMessage({
    id: "enterDetails.priceChangeDialog.title",
    defaultMessage: "Price change",
  })
  const rooms = useEnterDetailsStore((state) => state.rooms)

  const { newTotalPrice, roomPrices } = rooms.reduce<PriceDetailsState>(
    (acc, room, idx) => {
      const roomPrice = room.room.roomPrice.perStay.local.price
      const priceChange = priceChangeData[idx]

      const { totalPrice } = calculateTotalRoomPrice(
        room,
        priceChange?.roomPrice
      )
      acc.newTotalPrice += totalPrice

      acc.roomPrices.push({
        prevPrice: roomPrice,
        newPrice: priceChange?.roomPrice,
      })

      return acc
    },
    { newTotalPrice: 0, roomPrices: [] }
  )

  const roomSelectionMsg = intl.formatMessage(
    {
      id: "enterDetails.priceChangeDialog.descriptionPreviousRooms",
      defaultMessage: "{totalRooms, plural, one {room} other {rooms}}",
    },
    {
      totalRooms: rooms.length,
    }
  )

  const newRoomSelectionMsg = intl.formatMessage(
    {
      id: "enterDetails.priceChangeDialog.descriptionNewRooms",
      defaultMessage:
        "{totalRooms, plural, one {a new room} other {new rooms}}",
    },
    {
      totalRooms: rooms.length,
    }
  )

  return (
    <ModalOverlay
      className={styles.overlay}
      isOpen={isOpen}
      isKeyboardDismissDisabled
    >
      <Modal className={styles.modal}>
        <Dialog aria-label={title} className={styles.dialog}>
          <header className={styles.header}>
            <div className={styles.titleContainer}>
              <MaterialIcon
                icon="info"
                size={48}
                color="Icon/Interactive/Default"
              />
              <Typography variant="Title/sm">
                <h3>{title}</h3>
              </Typography>
            </div>
            <Typography variant="Body/Paragraph/mdRegular">
              <p style={{ textAlign: "center" }}>
                {intl.formatMessage(
                  {
                    id: "enterDetails.priceChangeDialog.description",
                    defaultMessage:
                      "Prices have increased since you selected your {roomSelection}.{linebreak} To continue your booking, accept the updated price,{linebreak} or go back to select {newRoomSelection}.",
                  },
                  {
                    roomSelection: roomSelectionMsg,
                    newRoomSelection: newRoomSelectionMsg,
                    linebreak: <br />,
                  }
                )}
              </p>
            </Typography>
            <div>
              <Typography variant="Title/Subtitle/md">
                <p style={{ textAlign: "center" }}>
                  {intl.formatMessage({
                    id: "enterDetails.priceChangeDialog.newTotalLabel",
                    defaultMessage: "New total",
                  })}
                </p>
              </Typography>
              <div className={styles.prices}>
                <Caption striked>
                  {formatPrice(intl, prevTotalPrice, currency)}
                </Caption>
                <Typography variant="Body/Paragraph/mdBold">
                  <p style={{ textAlign: "center" }}>
                    {formatPrice(intl, newTotalPrice, currency)}
                  </p>
                </Typography>
              </div>
            </div>
            <PriceChangeSummary
              rooms={rooms}
              roomPrices={roomPrices}
              newTotalPrice={{ price: newTotalPrice, currency }}
              onAccept={onAccept}
              onCancel={onCancel}
            />
          </header>
          <footer className={styles.footer}>
            <Button intent="secondary" onClick={onCancel}>
              {intl.formatMessage({
                id: "enterDetails.priceChangeDialog.cancelButton",
                defaultMessage: "Back to room selection",
              })}
            </Button>
            <Button onClick={onAccept}>
              {intl.formatMessage({
                id: "enterDetails.priceChangeDialog.acceptButton",
                defaultMessage: "Continue with new price",
              })}
            </Button>
          </footer>
        </Dialog>
      </Modal>
    </ModalOverlay>
  )
}