"use client"
import { useEffect, useRef, useState } from "react"
import { useIntl } from "react-intl"

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

import Button from "@/components/TempDesignSystem/Button"
import Caption from "@/components/TempDesignSystem/Text/Caption"
import Subtitle from "@/components/TempDesignSystem/Text/Subtitle"
import { formatPrice } from "@/utils/numberFormatting"

import { isBookingCodeRate } from "./isBookingCodeRate"
import { mapRate } from "./mapRate"
import Summary from "./Summary"

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

import type { MobileSummaryProps } from "@/types/components/hotelReservation/selectRate/rateSummary"
import type { RoomsAvailability } from "@/types/trpc/routers/hotel/roomAvailability"

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 = ""
    }
  }, [isSummaryOpen])

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

  const rooms = rateSummary.map((room, index) =>
    mapRate(room, index, bookingRooms)
  )

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

  return (
    <div className={styles.wrapper} data-open={isSummaryOpen}>
      <div className={styles.content}>
        <div className={styles.summaryAccordion}>
          <Summary
            booking={booking}
            rooms={rooms}
            isMember={isUserLoggedIn}
            totalPrice={totalPriceToShow}
            vat={vat}
            toggleSummaryOpen={toggleSummaryOpen}
          />
        </div>
      </div>
      <div className={styles.bottomSheet}>
        <button
          data-open={isSummaryOpen}
          onClick={(e) => {
            e.preventDefault()
            toggleSummaryOpen()
          }}
          className={styles.priceDetailsButton}
        >
          <Caption>{intl.formatMessage({ id: "Total price" })}</Caption>
          <Subtitle
            color={showDiscounted ? "red" : "uiTextHighContrast"}
            className={styles.wrappedText}
          >
            {formatPrice(
              intl,
              totalPriceToShow.local.price,
              totalPriceToShow.local.currency,
              totalPriceToShow.local.additionalPrice,
              totalPriceToShow.local.additionalPriceCurrency
            )}
          </Subtitle>
          <Caption color="baseTextHighContrast" type="underline">
            {intl.formatMessage({ id: "See details" })}
          </Caption>
        </button>
        <Button
          intent="primary"
          theme="base"
          size="large"
          type="submit"
          fullWidth
          disabled={!isAllRoomsSelected}
        >
          {intl.formatMessage({ id: "Continue" })}
        </Button>
      </div>
    </div>
  )
}