import clsx from 'clsx'
import { User } from 'web/lib/firebase/users'
import { CreatorContractsList } from './contract/contracts-list'
import { SEO } from './SEO'
import { Page } from './page'
import { SiteLink } from './site-link'
import { Avatar } from './avatar'
import { Col } from './layout/col'
import { Linkify } from './linkify'
import { Spacer } from './layout/spacer'
import { Row } from './layout/row'
import { LinkIcon } from '@heroicons/react/solid'
import { genHash } from 'common/util/random'
import { PencilIcon } from '@heroicons/react/outline'
import { Tabs } from './layout/tabs'
import { UserCommentsList } from './comments-list'
import { useEffect, useState } from 'react'
import { Comment, getUsersComments } from 'web/lib/firebase/comments'
import { Contract } from 'common/contract'
import { getContractFromId, listContracts } from 'web/lib/firebase/contracts'
import { LoadingIndicator } from './loading-indicator'
import { BetsList } from './bets-list'
import { Bet } from 'common/bet'
import { getUserBets } from 'web/lib/firebase/bets'
import { uniq } from 'lodash'

export function UserLink(props: {
  name: string
  username: string
  showUsername?: boolean
  className?: string
}) {
  const { name, username, showUsername, className } = props

  return (
    <SiteLink
      href={`/${username}`}
      className={clsx('z-10 truncate', className)}
    >
      {name}
      {showUsername && ` (@${username})`}
    </SiteLink>
  )
}

export const TAB_IDS = ['markets', 'comments', 'bets']

export function UserPage(props: {
  user: User
  currentUser?: User
  defaultTabTitle?: 'markets' | 'comments' | 'bets'
}) {
  const { user, currentUser, defaultTabTitle } = props
  const isCurrentUser = user.id === currentUser?.id
  const bannerUrl = user.bannerUrl ?? defaultBannerUrl(user.id)
  const [usersComments, setUsersComments] = useState<Comment[]>([] as Comment[])
  const [usersContracts, setUsersContracts] = useState<Contract[] | 'loading'>(
    'loading'
  )
  const [usersBets, setUsersBets] = useState<Bet[] | 'loading'>('loading')
  const [commentsByContract, setCommentsByContract] = useState<
    Map<Contract, Comment[]> | 'loading'
  >('loading')

  useEffect(() => {
    if (!user) return
    getUsersComments(user.id).then(setUsersComments)
    listContracts(user.id).then(setUsersContracts)
    getUserBets(user.id, { includeRedemptions: false }).then(setUsersBets)
  }, [user])

  useEffect(() => {
    const uniqueContractIds = uniq(
      usersComments.map((comment) => comment.contractId)
    )
    Promise.all(
      uniqueContractIds.map((contractId) => getContractFromId(contractId))
    ).then((contracts) => {
      const commentsByContract = new Map<Contract, Comment[]>()
      contracts.forEach((contract) => {
        if (!contract) return
        commentsByContract.set(
          contract,
          usersComments.filter((comment) => comment.contractId === contract.id)
        )
      })
      setCommentsByContract(commentsByContract)
    })
  }, [usersComments])

  return (
    <Page>
      <SEO
        title={`${user.name} (@${user.username})`}
        description={user.bio ?? ''}
        url={`/${user.username}`}
      />

      {/* Banner image up top, with an circle avatar overlaid */}
      <div
        className="h-32 w-full bg-cover bg-center sm:h-40"
        style={{
          backgroundImage: `url(${bannerUrl})`,
        }}
      ></div>
      <div className="relative mb-20">
        <div className="absolute -top-10 left-4">
          <Avatar
            username={user.username}
            avatarUrl={user.avatarUrl}
            size={20}
            className="bg-white ring-4 ring-white"
          />
        </div>

        {/* Top right buttons (e.g. edit, follow) */}
        <div className="absolute right-0 top-0 mt-4 mr-4">
          {isCurrentUser && (
            <SiteLink className="btn" href="/profile">
              <PencilIcon className="h-5 w-5" />{' '}
              <div className="ml-2">Edit</div>
            </SiteLink>
          )}
        </div>
      </div>

      {/* Profile details: name, username, bio, and link to twitter/discord */}
      <Col className="mx-4 -mt-6">
        <span className="text-2xl font-bold">{user.name}</span>
        <span className="text-gray-500">@{user.username}</span>

        {user.bio && (
          <>
            <Spacer h={4} />
            <div>
              <Linkify text={user.bio}></Linkify>
            </div>
            <Spacer h={4} />
          </>
        )}

        <Col className="sm:flex-row sm:gap-4">
          {user.website && (
            <SiteLink
              href={
                'https://' +
                user.website.replace('http://', '').replace('https://', '')
              }
            >
              <Row className="items-center gap-1">
                <LinkIcon className="h-4 w-4" />
                <span className="text-sm text-gray-500">{user.website}</span>
              </Row>
            </SiteLink>
          )}

          {user.twitterHandle && (
            <SiteLink
              href={`https://twitter.com/${user.twitterHandle
                .replace('https://www.twitter.com/', '')
                .replace('https://twitter.com/', '')
                .replace('www.twitter.com/', '')
                .replace('twitter.com/', '')}`}
            >
              <Row className="items-center gap-1">
                <img
                  src="/twitter-logo.svg"
                  className="h-4 w-4"
                  alt="Twitter"
                />
                <span className="text-sm text-gray-500">
                  {user.twitterHandle}
                </span>
              </Row>
            </SiteLink>
          )}

          {user.discordHandle && (
            <SiteLink href="https://discord.com/invite/eHQBNBqXuh">
              <Row className="items-center gap-1">
                <img
                  src="/discord-logo.svg"
                  className="h-4 w-4"
                  alt="Discord"
                />
                <span className="text-sm text-gray-500">
                  {user.discordHandle}
                </span>
              </Row>
            </SiteLink>
          )}
        </Col>

        <Spacer h={10} />
        {usersContracts !== 'loading' && commentsByContract != 'loading' ? (
          <Tabs
            className={'pb-2 pt-1 '}
            defaultIndex={TAB_IDS.indexOf(defaultTabTitle || 'markets')}
            onClick={(tabName) => {
              const tabId = tabName.toLowerCase()
              const subpath = tabId === 'markets' ? '' : '/' + tabId
              // BUG: if you start on `/Bob/bets`, then click on Markets, use-query-and-sort-params
              // rewrites the url incorrectly to `/Bob/bets` instead of `/Bob`
              window.history.replaceState('', '', `/${user.username}${subpath}`)
            }}
            tabs={[
              {
                title: 'Markets',
                content: <CreatorContractsList creator={user} />,
                tabIcon: (
                  <div className="px-0.5 font-bold">
                    {usersContracts.length}
                  </div>
                ),
              },
              {
                title: 'Comments',
                content: (
                  <UserCommentsList
                    user={user}
                    commentsByUniqueContracts={commentsByContract}
                  />
                ),
                tabIcon: (
                  <div className="px-0.5 font-bold">{usersComments.length}</div>
                ),
              },
              {
                title: 'Bets',
                content: (
                  <div>
                    <AlertBox
                      title="Bets are becoming publicly visible on 2022-06-01"
                      text="Bettor identities have always been traceable through the Manifold API.
                      However, our interface implied that they were private.
                      As we develop new features such as leaderboards and bet history, it won't be technically feasible to keep this info private.
                      For more context, or if you'd like to wipe your bet history, see: https://manifold.markets/Austin/will-all-bets-on-manifold-be-public"
                    />
                    {isCurrentUser && <BetsList user={user} />}
                  </div>
                ),
                tabIcon: (
                  <div className="px-0.5 font-bold">{usersBets.length}</div>
                ),
              },
            ]}
          />
        ) : (
          <LoadingIndicator />
        )}
      </Col>
    </Page>
  )
}

// Assign each user to a random default banner based on the hash of userId
// TODO: Consider handling banner uploads using our own storage bucket, like user avatars.
export function defaultBannerUrl(userId: string) {
  const defaultBanner = [
    'https://images.unsplash.com/photo-1501523460185-2aa5d2a0f981?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=2131&q=80',
    'https://images.unsplash.com/photo-1458682625221-3a45f8a844c7?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=1974&q=80',
    'https://images.unsplash.com/photo-1558517259-165ae4b10f7f?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=2080&q=80',
    'https://images.unsplash.com/photo-1563260797-cb5cd70254c8?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=2069&q=80',
    'https://images.unsplash.com/photo-1603399587513-136aa9398f2d?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=1467&q=80',
  ]
  return defaultBanner[genHash(userId)() % defaultBanner.length]
}

import { ExclamationIcon } from '@heroicons/react/solid'

function AlertBox(props: { title: string; text: string }) {
  const { title, text } = props
  return (
    <div className="rounded-md bg-yellow-50 p-4">
      <div className="flex">
        <div className="flex-shrink-0">
          <ExclamationIcon
            className="h-5 w-5 text-yellow-400"
            aria-hidden="true"
          />
        </div>
        <div className="ml-3">
          <h3 className="text-sm font-medium text-yellow-800">{title}</h3>
          <div className="mt-2 text-sm text-yellow-700">
            <Linkify text={text} />
          </div>
        </div>
      </div>
    </div>
  )
}