"use client"
import { use } from "react"
import { useIntl } from "react-intl"

import Title from "@scandic-hotels/design-system/Title"
import { BreakfastPackageEnum } from "@scandic-hotels/trpc/enums/breakfast"

import { useMyStayStore } from "@/stores/my-stay"

import { Carousel } from "@/components/Carousel"
import { AddAncillaryProvider } from "@/providers/AddAncillaryProvider"

import AddAncillaryFlowModal from "./AddAncillaryFlow/AddAncillaryFlowModal"
import AncillaryFlowModalWrapper from "./AddAncillaryFlow/AncillaryFlowModalWrapper"
import WrappedAncillaryCard from "./AddAncillaryFlow/WrappedAncillaryCard"
import { AddedAncillaries } from "./AddedAncillaries"
import { generateUniqueAncillaries, mapAncillaries } from "./utils"
import ViewAllAncillaries from "./ViewAllAncillaries"

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

import type {
  AncillariesProps,
  SelectedAncillary,
} from "@/types/components/myPages/myStay/ancillaries"

export function Ancillaries({
  ancillariesPromise,
  packages,
  savedCreditCards,
  user,
}: AncillariesProps) {
  const intl = useIntl()
  const ancillaries = use(ancillariesPromise)
  const bookedRoom = useMyStayStore((state) => state.bookedRoom)

  if (!bookedRoom || bookedRoom.isCancelled || !bookedRoom.showAncillaries) {
    return null
  }

  const alreadyHasBreakfast =
    bookedRoom.rateDefinition.breakfastIncluded || bookedRoom.breakfast

  const breakfastPackageAdults = alreadyHasBreakfast
    ? undefined
    : packages?.find(
        (p) => p.code === BreakfastPackageEnum.ANCILLARY_REGULAR_BREAKFAST
      )

  /**
   * A constructed ancillary for breakfast
   *
   * This is a "fake" ancillary for breakfast, since breakfast isn't really an
   * ancillary in the system. This makes it play nicely with the add ancillary
   * flow. If the user shouldn't be able to add breakfast this will be `undefined`.
   */
  const breakfastAncillary: SelectedAncillary | undefined =
    breakfastPackageAdults
      ? {
          description: intl.formatMessage({
            defaultMessage: "Buffet",
          }),
          id: breakfastPackageAdults.code,
          title: intl.formatMessage({
            defaultMessage: "Breakfast",
          }),
          price: {
            currency: breakfastPackageAdults.localPrice.currency,
            total: breakfastPackageAdults.localPrice.totalPrice,
          },
          imageUrl:
            "https://images.scandichotels.com/publishedmedia/inyre69evkpzgtygjnvp/Breakfast_-_Scandic_Sweden_-_Free_to_use.jpg",
          requiresDeliveryTime: false,
          loyaltyCode: undefined,
          points: undefined,
          hotelId: Number(bookedRoom.hotelId),
          categoryName: "Food",
        }
      : undefined

  const allAncillaries = mapAncillaries(ancillaries, breakfastAncillary, user)

  if (!allAncillaries.length) {
    return null
  }

  const uniqueAncillaries = generateUniqueAncillaries(allAncillaries)

  return (
    <AddAncillaryProvider booking={bookedRoom} ancillaries={allAncillaries}>
      <div className={styles.container}>
        {uniqueAncillaries.length > 0 && bookedRoom.canModifyAncillaries && (
          <>
            <div className={styles.title}>
              <Title as="h5">
                {intl.formatMessage({
                  defaultMessage: "Upgrade your stay",
                })}
              </Title>
              <div className={styles.viewAllLink}>
                <ViewAllAncillaries />
              </div>
            </div>

            <div className={styles.ancillaries}>
              {uniqueAncillaries.slice(0, 4).map((ancillary) => (
                <WrappedAncillaryCard
                  ancillary={ancillary}
                  key={ancillary.id}
                />
              ))}
            </div>

            <div className={styles.mobileAncillaries}>
              <Carousel>
                <Carousel.Content>
                  {uniqueAncillaries.map((ancillary) => {
                    return (
                      <Carousel.Item key={ancillary.id}>
                        <WrappedAncillaryCard ancillary={ancillary} />
                      </Carousel.Item>
                    )
                  })}
                </Carousel.Content>
                <Carousel.Dots />
              </Carousel>
            </div>
          </>
        )}

        <AddedAncillaries
          booking={bookedRoom}
          ancillaries={uniqueAncillaries}
        />

        <AncillaryFlowModalWrapper>
          <AddAncillaryFlowModal
            user={user}
            booking={bookedRoom}
            packages={packages}
            savedCreditCards={savedCreditCards}
          />
        </AncillaryFlowModalWrapper>
      </div>
    </AddAncillaryProvider>
  )
}