web/components/HotelReservation/EnterDetails/SectionAccordion/index.tsx

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

import { useEnterDetailsStore } from "@/stores/enter-details"

import { CheckIcon, ChevronDownIcon } from "@/components/Icons"
import Footnote from "@/components/TempDesignSystem/Text/Footnote"
import Subtitle from "@/components/TempDesignSystem/Text/Subtitle"

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

import type { SectionAccordionProps } from "@/types/components/hotelReservation/selectRate/sectionAccordion"
import { StepEnum } from "@/types/enums/step"

function useScrollToActiveSection(
  step: StepEnum,
  steps: StepEnum[],
  isActive: boolean
) {
  const handleScroll = useCallback(() => {
    const isMobile = window.matchMedia("(max-width: 768px)").matches
    if (!isMobile) return

    const currentElement = document.querySelector<HTMLElement>(
      `[data-step="${step}"]`
    )
    const prevOpenElement =
      document.querySelector<HTMLElement>(`[data-open="true"]`)

    const currentStepIndex = steps.indexOf(step)
    const prevStep = prevOpenElement?.dataset.step as StepEnum
    const prevStepIndex = steps.indexOf(prevStep)

    if (currentElement) {
      const BOOKING_WIDGET_OFFSET = 71

      const prevElementContent = prevOpenElement?.querySelector("header + div")

      let collapsedSpace = 0
      if (prevElementContent && prevStepIndex < currentStepIndex) {
        collapsedSpace = prevElementContent.clientHeight
      }

      const currentElementTop =
        currentElement.getBoundingClientRect().top + window.scrollY

      const scrollTarget = Math.round(
        currentElementTop - BOOKING_WIDGET_OFFSET - collapsedSpace
      )

      window.scrollTo({
        top: scrollTarget,
        behavior: "smooth",
      })
    }
  }, [step, steps])

  useEffect(() => {
    if (!isActive) return
    handleScroll()
  }, [isActive, handleScroll])
}

export default function SectionAccordion({
  children,
  header,
  label,
  step,
}: React.PropsWithChildren<SectionAccordionProps>) {
  const intl = useIntl()
  const currentStep = useEnterDetailsStore((state) => state.currentStep)
  const steps = useEnterDetailsStore((state) => state.steps)
  const [isComplete, setIsComplete] = useState(false)
  const [isOpen, setIsOpen] = useState(false)
  const isValid = useEnterDetailsStore((state) => state.isValid[step])
  const navigate = useEnterDetailsStore((state) => state.actions.navigate)
  const { bedType, breakfast } = useEnterDetailsStore((state) => ({
    bedType: state.bedType,
    breakfast: state.breakfast,
  }))
  const [title, setTitle] = useState(label)

  const noBreakfastTitle = intl.formatMessage({ id: "No breakfast" })
  const breakfastTitle = intl.formatMessage({ id: "Breakfast buffet" })

  useScrollToActiveSection(step, steps, currentStep === step)

  useEffect(() => {
    if (step === StepEnum.selectBed && bedType) {
      setTitle(bedType.description)
    }
    // If breakfast step, check if an option has been selected
    if (step === StepEnum.breakfast && breakfast !== undefined) {
      if (breakfast === false) {
        setTitle(noBreakfastTitle)
      } else {
        setTitle(breakfastTitle)
      }
    }
  }, [bedType, breakfast, setTitle, step, breakfastTitle, noBreakfastTitle])

  useEffect(() => {
    setIsComplete(isValid)
  }, [isValid, setIsComplete])

  useEffect(() => {
    setIsOpen(currentStep === step)
  }, [currentStep, setIsOpen, step])

  function onModify() {
    navigate(step)
  }

  const textColor =
    isComplete || isOpen ? "uiTextHighContrast" : "baseTextDisabled"
  return (
    <div className={styles.accordion} data-open={isOpen} data-step={step}>
      <div className={styles.iconWrapper}>
        <div className={styles.circle} data-checked={isComplete}>
          {isComplete ? (
            <CheckIcon color="white" height="16" width="16" />
          ) : null}
        </div>
      </div>
      <header className={styles.header}>
        <button
          onClick={onModify}
          disabled={!isComplete}
          className={styles.modifyButton}
        >
          <Footnote
            className={styles.title}
            asChild
            textTransform="uppercase"
            type="label"
            color={textColor}
          >
            <h2>{header}</h2>
          </Footnote>
          <Subtitle className={styles.selection} type="two" color={textColor}>
            {title}
          </Subtitle>

          {isComplete && !isOpen && (
            <ChevronDownIcon className={styles.button} color="burgundy" />
          )}
        </button>
      </header>
      <div className={styles.content}>
        <div className={styles.contentWrapper}>{children}</div>
      </div>
    </div>
  )
}