import React, { useState, useEffect } from 'react'
import ReactDOM from 'react-dom'
import Link from 'next/link'
import dynamic from 'next/dynamic'

const Snowfall = dynamic(() => import('react-snowfall'), { ssr: false })

import LogoutIcon from './logoutIcon.js'
import Modal from './modal.js'
import constants from '../constants.json'
import BB from './b.js'

import styles from './layout.module.css'
import tabs from '../data/tabs.json'
import topBarLinks from '../data/topBarLinks.json'

const shouldRenderSnow = () => {
  const date = new Date()
  // if its december, and date is more than 5
  return date.getMonth() === 11 && date.getDate() > 5
}

function Snow() {
  const [windowSize, setWindowSize] = useState([100, 200])

  useEffect(() => {
    setWindowSize([window.innerWidth, window.innerHeight])
    window.addEventListener('resize', () => {
      setWindowSize([window.innerWidth, window.innerHeight])
    })
  }, [])

  const snowflakeCount = (windowSize[0] + windowSize[1]) / 26

  if (typeof window !== 'object') return null

  return ReactDOM.createPortal(
    <div
      style={{
        pointerEvents: 'none',
        zIndex: 900,
        position: 'fixed',
        width: `${windowSize[0]}px`,
        height: `${windowSize[1]}px`,
      }}
    >
      <Snowfall snowflakeCount={snowflakeCount} />
    </div>,
    document.body
  )
}

function TopBar({
  setSidebarOpen,
  sidebarOpen,
  closeSideBar,
  href,
  unreads,
  userId,
}) {
  return (
    <>
      <MenuIcon setSidebarOpen={setSidebarOpen} sidebarOpen={sidebarOpen} />
      <Link href="/">
        <a>
          <img
            src={`${constants.siteUrl}img/frylabs-logo_small_transparent.png`}
            alt="FryLabs"
          />
        </a>
      </Link>
      <div className={styles.topBarLinks}>
        {Object.keys(topBarLinks).map((key) => {
          const item = topBarLinks[key]

          return (
            <Link key={key} href={item.href}>
              <a
                onClick={closeSideBar}
                className={href.includes(key) ? styles.active : undefined}
              >
                {item.text}
              </a>
            </Link>
          )
        })}
      </div>
      <div className={'seperator'} />
      <UserStatus onClick={closeSideBar} unreads={unreads} userId={userId} />
    </>
  )
}

function SideBar({ sidebarOpen, closeSideBar, href, setDonateShowing }) {
  return sidebarOpen ? (
    <>
      <div id="sideBarLinks" className={styles.sidebarLinks}>
        {Object.keys(tabs).map((key) => {
          const item = tabs[key]
          if (item.seperator) {
            return <hr key={key} />
          }

          return (
            <Link href={item.href} key={key}>
              <a
                onClick={closeSideBar}
                className={href.includes(key) ? styles.active : undefined}
                id={item.id || undefined}
              >
                {item.text}
              </a>
            </Link>
          )
        })}
        <a
          onClick={() => {
            closeSideBar()
            setDonateShowing(true)
          }}
        >
          Donate
        </a>
      </div>
    </>
  ) : null
}

function Donate() {
  return (
    <div>
      <div className={styles.modalHead}>Donate</div>
      <div style={{ textAlign: 'justify', margin: '8px' }}>
        Paypalon és Patreonon látszódik a neved, de Patreonon könnyen meg lehet
        változtatni. Ha név nélkül szeretnél adakozni, akkor írd át egy
        nickname-re. De akárhova adakozol, a neved sehova se lesz kiadva, és nem
        látja 3. személy.
        <p />A kapott összegekből van fizetve a szerver fenntartása (áram,
        domain név, ...), ezen túl pedig a sok programozással eltelt idő
        kipihenése közben használt különböző élvezeti cikkek
      </div>
      <div className={styles.donateLogoContainer}>
        <a
          href={`${constants.siteUrl}patreon`}
          target="_blank"
          rel="noreferrer"
        >
          <img
            style={{
              border: 'none',
              margin: '15px',
            }}
            src={`${constants.siteUrl}img/patreon-logo.png`}
          />
        </a>
        <a href={`${constants.siteUrl}donate`} target="_blank" rel="noreferrer">
          <img
            style={{
              border: 'none',
              margin: '15px',
            }}
            src={`${constants.siteUrl}img/paypal-logo.png`}
          />
        </a>
      </div>
    </div>
  )
}

function UserStatus({ userId, unreads, onClick }) {
  const unreadCount = unreads ? unreads.length : 0
  return (
    <div className={styles.userStatus}>
      <div className={'uid'} title="User ID">
        UID: {userId || '...'}
      </div>
      <Link href="/chat">
        <a
          onClick={onClick}
          title={`Chat${unreadCount ? ' (' + unreadCount + ' új üzenet)' : ''}`}
          className={styles.unreadNotification}
        >
          <span>💬</span>
          {unreadCount ? <div>{unreadCount}</div> : null}
        </a>
      </Link>

      <div
        className={styles.logout}
        title="Kijelentkezés"
        onClick={() => {
          const res = window.confirm('Kijelentkezel?')
          if (!res) return
          fetch(constants.apiUrl + 'logout', {
            method: 'GET',
            credentials: 'include',
            headers: {
              Accept: 'application/json',
              'Content-Type': 'application/json',
            },
          }).then(() => {
            location.reload()
          })
        }}
      >
        <LogoutIcon size={28} />
      </div>
    </div>
  )
}

function MenuIcon({ setSidebarOpen, sidebarOpen }) {
  return (
    <div
      onClick={() => {
        setSidebarOpen(!sidebarOpen)
      }}
      className={styles.menuicon}
    >
      <div />
      <div />
      <div />
    </div>
  )
}

export default function Layout({ children, router, globalData }) {
  const [sidebarOpen, setSidebarOpen] = useState(true)
  const [donateShowing, setDonateShowing] = useState(false)

  const userId = globalData.userId
  const unreads = globalData.unreads

  useEffect(() => {
    setDonateShowing(!!router.query.donate)
  }, [router.query.donate])

  let href = router.route
  if (href === '/' || href === '') {
    href = 'index'
  }

  const closeSideBar = () => {
    if (typeof window !== 'undefined') {
      if (window.innerWidth < constants.mobileWindowWidth) {
        setSidebarOpen(false)
      }
    }
  }

  useEffect(() => {
    closeSideBar()
    window.addEventListener('resize', () => {
      setSidebarOpen(window.innerWidth >= 700)
    })
  }, [])

  return (
    <>
      <div className={styles.topBar}>
        <TopBar
          setSidebarOpen={setSidebarOpen}
          sidebarOpen={sidebarOpen}
          closeSideBar={closeSideBar}
          href={href}
          unreads={unreads}
          userId={userId}
        />
      </div>
      <div className={styles.sidebar}>
        <SideBar
          sidebarOpen={sidebarOpen}
          closeSideBar={closeSideBar}
          href={href}
          setDonateShowing={setDonateShowing}
        />
      </div>
      {donateShowing ? (
        <Modal
          closeClick={() => {
            setDonateShowing(false)
          }}
        >
          <Donate />
        </Modal>
      ) : null}
      <div className={styles.content}>{children}</div>
      <BB />
      {shouldRenderSnow() && <Snow />}
    </>
  )
}