369 lines
11 KiB
TypeScript
369 lines
11 KiB
TypeScript
import { Bet } from 'common/bet'
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import { ContractComment } from 'common/comment'
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import { User } from 'common/user'
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import { Contract } from 'common/contract'
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import React, { useEffect, useState } from 'react'
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import { minBy, maxBy, partition, sumBy, Dictionary } from 'lodash'
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import { useUser } from 'web/hooks/use-user'
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import { formatMoney } from 'common/util/format'
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import { useRouter } from 'next/router'
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import { Row } from 'web/components/layout/row'
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import clsx from 'clsx'
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import { Avatar } from 'web/components/avatar'
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import { OutcomeLabel } from 'web/components/outcome-label'
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import { CopyLinkDateTimeComponent } from 'web/components/feed/copy-link-date-time'
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import { firebaseLogin } from 'web/lib/firebase/users'
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import { createCommentOnContract } from 'web/lib/firebase/comments'
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import { Col } from 'web/components/layout/col'
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import { track } from 'web/lib/service/analytics'
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import { Tipper } from '../tipper'
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import { CommentTipMap, CommentTips } from 'web/hooks/use-tip-txns'
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import { Content } from '../editor'
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import { Editor } from '@tiptap/react'
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import { UserLink } from 'web/components/user-link'
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import { CommentInput } from '../comment-input'
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export function FeedCommentThread(props: {
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user: User | null | undefined
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contract: Contract
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threadComments: ContractComment[]
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tips: CommentTipMap
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parentComment: ContractComment
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bets: Bet[]
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betsByUserId: Dictionary<Bet[]>
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commentsByUserId: Dictionary<ContractComment[]>
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}) {
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const {
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user,
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contract,
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threadComments,
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commentsByUserId,
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bets,
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betsByUserId,
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tips,
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parentComment,
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} = props
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const [showReply, setShowReply] = useState(false)
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const [replyTo, setReplyTo] = useState<{ id: string; username: string }>()
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function scrollAndOpenReplyInput(comment: ContractComment) {
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setReplyTo({ id: comment.userId, username: comment.userUsername })
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setShowReply(true)
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}
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return (
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<Col className="relative w-full items-stretch gap-3 pb-4">
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<span
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className="absolute top-5 left-4 -ml-px h-[calc(100%-2rem)] w-0.5 bg-gray-200"
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aria-hidden="true"
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/>
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{[parentComment].concat(threadComments).map((comment, commentIdx) => (
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<FeedComment
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key={comment.id}
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indent={commentIdx != 0}
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contract={contract}
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comment={comment}
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tips={tips[comment.id]}
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betsBySameUser={betsByUserId[comment.userId] ?? []}
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onReplyClick={scrollAndOpenReplyInput}
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probAtCreatedTime={
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contract.outcomeType === 'BINARY'
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? minBy(bets, (bet) => {
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return bet.createdTime < comment.createdTime
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? comment.createdTime - bet.createdTime
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: comment.createdTime
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})?.probAfter
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: undefined
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}
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/>
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))}
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{showReply && (
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<Col className="-pb-2 relative ml-6">
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<span
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className="absolute -left-1 -ml-[1px] mt-[0.8rem] h-2 w-0.5 rotate-90 bg-gray-200"
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aria-hidden="true"
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/>
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<ContractCommentInput
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contract={contract}
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betsByCurrentUser={(user && betsByUserId[user.id]) ?? []}
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commentsByCurrentUser={(user && commentsByUserId[user.id]) ?? []}
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parentCommentId={parentComment.id}
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replyToUser={replyTo}
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parentAnswerOutcome={parentComment.answerOutcome}
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onSubmitComment={() => {
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setShowReply(false)
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}}
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/>
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</Col>
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)}
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</Col>
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)
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}
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export function FeedComment(props: {
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contract: Contract
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comment: ContractComment
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tips: CommentTips
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betsBySameUser: Bet[]
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indent?: boolean
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probAtCreatedTime?: number
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onReplyClick?: (comment: ContractComment) => void
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}) {
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const {
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contract,
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comment,
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tips,
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betsBySameUser,
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indent,
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probAtCreatedTime,
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onReplyClick,
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} = props
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const { text, content, userUsername, userName, userAvatarUrl, createdTime } =
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comment
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const betOutcome = comment.betOutcome
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let bought: string | undefined
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let money: string | undefined
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if (comment.betAmount != null) {
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bought = comment.betAmount >= 0 ? 'bought' : 'sold'
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money = formatMoney(Math.abs(comment.betAmount))
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}
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const [highlighted, setHighlighted] = useState(false)
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const router = useRouter()
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useEffect(() => {
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if (router.asPath.endsWith(`#${comment.id}`)) {
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setHighlighted(true)
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}
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}, [comment.id, router.asPath])
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// Only calculated if they don't have a matching bet
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const { userPosition, outcome } = getBettorsLargestPositionBeforeTime(
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contract,
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comment.createdTime,
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comment.betId ? [] : betsBySameUser
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)
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return (
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<Row
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id={comment.id}
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className={clsx(
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'relative',
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indent ? 'ml-6' : '',
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highlighted ? `-m-1.5 rounded bg-indigo-500/[0.2] p-1.5` : ''
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)}
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>
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{/*draw a gray line from the comment to the left:*/}
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{indent ? (
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<span
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className="absolute -left-1 -ml-[1px] mt-[0.8rem] h-2 w-0.5 rotate-90 bg-gray-200"
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aria-hidden="true"
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/>
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) : null}
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<Avatar size="sm" username={userUsername} avatarUrl={userAvatarUrl} />
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<div className="ml-1.5 min-w-0 flex-1 pl-0.5 sm:ml-3">
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<div className="mt-0.5 text-sm text-gray-500">
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<UserLink
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className="text-gray-500"
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username={userUsername}
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name={userName}
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/>{' '}
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{!comment.betId != null &&
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userPosition > 0 &&
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contract.outcomeType !== 'NUMERIC' && (
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<>
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{'is '}
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<CommentStatus
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prob={probAtCreatedTime}
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outcome={outcome}
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contract={contract}
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/>
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</>
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)}
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{bought} {money}
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{contract.outcomeType !== 'FREE_RESPONSE' && betOutcome && (
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<>
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{' '}
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of{' '}
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<OutcomeLabel
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outcome={betOutcome ? betOutcome : ''}
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contract={contract}
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truncate="short"
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/>
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</>
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)}
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<CopyLinkDateTimeComponent
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prefix={contract.creatorUsername}
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slug={contract.slug}
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createdTime={createdTime}
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elementId={comment.id}
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/>
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</div>
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<Content
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className="mt-2 text-[15px] text-gray-700"
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content={content || text}
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smallImage
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/>
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<Row className="mt-2 items-center gap-6 text-xs text-gray-500">
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<Tipper comment={comment} tips={tips ?? {}} />
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{onReplyClick && (
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<button
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className="font-bold hover:underline"
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onClick={() => onReplyClick(comment)}
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>
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Reply
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</button>
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)}
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</Row>
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</div>
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</Row>
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)
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}
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export function getMostRecentCommentableBet(
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betsByCurrentUser: Bet[],
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commentsByCurrentUser: ContractComment[],
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user?: User | null,
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answerOutcome?: string
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) {
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let sortedBetsByCurrentUser = betsByCurrentUser.sort(
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(a, b) => b.createdTime - a.createdTime
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)
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if (answerOutcome) {
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sortedBetsByCurrentUser = sortedBetsByCurrentUser.slice(0, 1)
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}
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return sortedBetsByCurrentUser
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.filter((bet) => {
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if (
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canCommentOnBet(bet, user) &&
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!commentsByCurrentUser.some(
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(comment) => comment.createdTime > bet.createdTime
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)
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) {
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if (!answerOutcome) return true
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return answerOutcome === bet.outcome
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}
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return false
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})
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.pop()
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}
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function CommentStatus(props: {
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contract: Contract
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outcome: string
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prob?: number
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}) {
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const { contract, outcome, prob } = props
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return (
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<>
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{` predicting `}
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<OutcomeLabel outcome={outcome} contract={contract} truncate="short" />
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{prob && ' at ' + Math.round(prob * 100) + '%'}
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</>
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)
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}
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export function ContractCommentInput(props: {
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contract: Contract
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betsByCurrentUser: Bet[]
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commentsByCurrentUser: ContractComment[]
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className?: string
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parentAnswerOutcome?: string | undefined
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replyToUser?: { id: string; username: string }
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parentCommentId?: string
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onSubmitComment?: () => void
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}) {
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const user = useUser()
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async function onSubmitComment(editor: Editor, betId: string | undefined) {
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if (!user) {
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track('sign in to comment')
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return await firebaseLogin()
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}
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await createCommentOnContract(
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props.contract.id,
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editor.getJSON(),
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user,
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betId,
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props.parentAnswerOutcome,
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props.parentCommentId
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)
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props.onSubmitComment?.()
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}
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const mostRecentCommentableBet = getMostRecentCommentableBet(
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props.betsByCurrentUser,
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props.commentsByCurrentUser,
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user,
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props.parentAnswerOutcome
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)
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const { id } = mostRecentCommentableBet || { id: undefined }
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return (
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<CommentInput
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replyToUser={props.replyToUser}
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parentAnswerOutcome={props.parentAnswerOutcome}
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parentCommentId={props.parentCommentId}
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onSubmitComment={onSubmitComment}
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className={props.className}
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presetId={id}
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/>
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)
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}
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function getBettorsLargestPositionBeforeTime(
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contract: Contract,
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createdTime: number,
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bets: Bet[]
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) {
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let yesFloorShares = 0,
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yesShares = 0,
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noShares = 0,
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noFloorShares = 0
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const previousBets = bets.filter(
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(prevBet) => prevBet.createdTime < createdTime && !prevBet.isAnte
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)
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if (contract.outcomeType === 'FREE_RESPONSE') {
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const answerCounts: { [outcome: string]: number } = {}
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for (const bet of previousBets) {
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if (bet.outcome) {
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if (!answerCounts[bet.outcome]) {
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answerCounts[bet.outcome] = bet.amount
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} else {
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answerCounts[bet.outcome] += bet.amount
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}
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}
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}
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const majorityAnswer =
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maxBy(Object.keys(answerCounts), (outcome) => answerCounts[outcome]) ?? ''
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return {
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userPosition: answerCounts[majorityAnswer] || 0,
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outcome: majorityAnswer,
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}
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}
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if (bets.length === 0) {
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return { userPosition: 0, outcome: '' }
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}
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const [yesBets, noBets] = partition(
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previousBets ?? [],
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(bet) => bet.outcome === 'YES'
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)
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yesShares = sumBy(yesBets, (bet) => bet.shares)
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noShares = sumBy(noBets, (bet) => bet.shares)
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yesFloorShares = Math.floor(yesShares)
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noFloorShares = Math.floor(noShares)
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const userPosition = yesFloorShares || noFloorShares
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const outcome = yesFloorShares > noFloorShares ? 'YES' : 'NO'
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return { userPosition, outcome }
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}
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function canCommentOnBet(bet: Bet, user?: User | null) {
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const { userId, createdTime, isRedemption } = bet
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const isSelf = user?.id === userId
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// You can comment if your bet was posted in the last hour
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return !isRedemption && isSelf && Date.now() - createdTime < 60 * 60 * 1000
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}
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