manifold/web/components/contract-overview.tsx

import {
  compute,
  Contract,
  deleteContract,
  path,
} from '../lib/firebase/contracts'
import { Col } from './layout/col'
import { Spacer } from './layout/spacer'
import { ContractProbGraph } from './contract-prob-graph'
import router from 'next/router'
import { useUser } from '../hooks/use-user'
import { Row } from './layout/row'
import { Linkify } from './linkify'
import clsx from 'clsx'
import { ContractDetails, ResolutionOrChance } from './contract-card'
import { ContractFeed } from './contract-feed'
import { TweetButton } from './tweet-button'

export const ContractOverview = (props: {
  contract: Contract
  className?: string
}) => {
  const { contract, className } = props
  const { resolution, creatorId, creatorName } = contract
  const { probPercent, truePool } = compute(contract)

  const user = useUser()
  const isCreator = user?.id === creatorId

  const tweetQuestion = isCreator
    ? contract.question
    : `${creatorName}: ${contract.question}`
  const tweetDescription = resolution
    ? isCreator
      ? `Resolved ${resolution}!`
      : `Resolved ${resolution} by ${creatorName}:`
    : `Currently ${probPercent} chance, place your bets here:`
  const url = `https://manifold.markets${path(contract)}`
  const tweetText = `${tweetQuestion}\n\n${tweetDescription}\n\n${url}`

  return (
    <Col className={clsx('mb-6', className)}>
      <Row className="justify-between gap-4">
        <Col className="gap-4">
          <div className="text-2xl md:text-3xl text-indigo-700">
            <Linkify text={contract.question} />
          </div>

          <ResolutionOrChance
            className="md:hidden"
            resolution={resolution}
            probPercent={probPercent}
            large
          />

          <ContractDetails contract={contract} />
          <TweetButton className="self-end md:hidden" tweetText={tweetText} />
        </Col>

        <Col className="hidden md:flex justify-between items-end">
          <ResolutionOrChance
            className="items-end"
            resolution={resolution}
            probPercent={probPercent}
            large
          />
          <TweetButton className="mt-6" tweetText={tweetText} />
        </Col>
      </Row>

      <Spacer h={4} />

      <ContractProbGraph contract={contract} />

      <Spacer h={12} />

      {/* Show a delete button for contracts without any trading */}
      {isCreator && truePool === 0 && (
        <>
          <Spacer h={8} />
          <button
            className="btn btn-xs btn-error btn-outline mt-1 max-w-fit self-end"
            onClick={async (e) => {
              e.preventDefault()
              await deleteContract(contract.id)
              router.push('/markets')
            }}
          >
            Delete
          </button>
        </>
      )}

      <ContractFeed contract={contract} />
    </Col>
  )
}