"use client"
import { cx } from "class-variance-authority"
import { useEffect, useRef, useState } from "react"
import { Button as ButtonRAC } from "react-aria-components"
import { useIntl } from "react-intl"

import { Button } from "@scandic-hotels/design-system/Button"
import { MaterialIcon } from "@scandic-hotels/design-system/Icons/MaterialIcon"
import { Typography } from "@scandic-hotels/design-system/Typography"

import { useRatesStore } from "@/stores/select-rate"

import { formatPrice } from "@/utils/numberFormatting"

import SummaryContent from "./Content"
import { mapRate } from "./mapRate"
import { isBookingCodeRate } from "./utils"

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

import type { RoomsAvailability } from "@scandic-hotels/trpc/types/roomAvailability"

import type { MobileSummaryProps } from "@/types/components/hotelReservation/selectRate/rateSummary"

export default function MobileSummary({
  isAllRoomsSelected,
  isUserLoggedIn,
  totalPriceToShow,
}: MobileSummaryProps) {
  const intl = useIntl()
  const scrollY = useRef(0)
  const [isSummaryOpen, setIsSummaryOpen] = useState(false)

  const { booking, bookingRooms, roomsAvailability, rateSummary, vat } =
    useRatesStore((state) => ({
      booking: state.booking,
      bookingRooms: state.booking.rooms,
      roomsAvailability: state.roomsAvailability,
      rateSummary: state.rateSummary,
      vat: state.vat,
    }))

  function toggleSummaryOpen() {
    setIsSummaryOpen(!isSummaryOpen)
  }

  useEffect(() => {
    if (isSummaryOpen) {
      scrollY.current = window.scrollY
      document.body.style.position = "fixed"
      document.body.style.top = `-${scrollY.current}px`
      document.body.style.width = "100%"
    } else {
      document.body.style.position = ""
      document.body.style.top = ""
      document.body.style.width = ""
      window.scrollTo({
        top: scrollY.current,
        left: 0,
        behavior: "instant",
      })
    }

    return () => {
      document.body.style.position = ""
      document.body.style.top = ""
      document.body.style.width = ""
    }
  }, [isSummaryOpen])

  const roomRateDefinitions = roomsAvailability?.find(
    (ra): ra is RoomsAvailability => "rateDefinitions" in ra
  )
  if (!roomRateDefinitions) {
    return null
  }

  const rooms = rateSummary.map((room, index) =>
    room ? mapRate(room, index, bookingRooms, room.packages) : null
  )

  const containsBookingCodeRate = rateSummary.find(
    (r) => r && isBookingCodeRate(r.product)
  )
  const showDiscounted = containsBookingCodeRate || isUserLoggedIn

  return (
    <div className={styles.wrapper} data-open={isSummaryOpen}>
      <div className={styles.content}>
        <div className={styles.summaryAccordion}>
          <SummaryContent
            booking={booking}
            rooms={rooms}
            isMember={isUserLoggedIn}
            totalPrice={totalPriceToShow}
            vat={vat}
            toggleSummaryOpen={toggleSummaryOpen}
          />
        </div>
      </div>
      <div className={styles.bottomSheet}>
        <ButtonRAC
          data-open={isSummaryOpen}
          onPress={toggleSummaryOpen}
          className={styles.priceDetailsButton}
        >
          <Typography variant="Body/Supporting text (caption)/smRegular">
            <span className={styles.priceLabel}>
              {intl.formatMessage({
                defaultMessage: "Total price",
              })}
            </span>
          </Typography>
          <Typography variant="Title/Subtitle/lg">
            <span
              className={cx(styles.price, {
                [styles.discounted]: showDiscounted,
              })}
            >
              {formatPrice(
                intl,
                totalPriceToShow.local.price,
                totalPriceToShow.local.currency,
                totalPriceToShow.local.additionalPrice,
                totalPriceToShow.local.additionalPriceCurrency
              )}
            </span>
          </Typography>
          {showDiscounted && totalPriceToShow.local.regularPrice ? (
            <Typography variant="Body/Paragraph/mdRegular">
              <s className={styles.strikeThroughRate}>
                {formatPrice(
                  intl,
                  totalPriceToShow.local.regularPrice,
                  totalPriceToShow.local.currency
                )}
              </s>
            </Typography>
          ) : null}

          <Typography variant="Body/Supporting text (caption)/smBold">
            <span className={styles.seeDetails}>
              <span>
                {intl.formatMessage({
                  defaultMessage: "See details",
                })}
              </span>
              <MaterialIcon
                icon="chevron_right"
                color="CurrentColor"
                size={20}
              />
            </span>
          </Typography>
        </ButtonRAC>
        <Button
          variant="Primary"
          color="Primary"
          size="Large"
          type="submit"
          typography="Body/Paragraph/mdBold"
          isDisabled={!isAllRoomsSelected}
        >
          {intl.formatMessage({
            defaultMessage: "Continue",
          })}
        </Button>
      </div>
    </div>
  )
}