manifold/web/components/contract/prob-change-table.tsx
2022-09-17 18:00:24 -05:00

87 lines
2.7 KiB
TypeScript

import clsx from 'clsx'
import { contractPath } from 'web/lib/firebase/contracts'
import { CPMMContract } from 'common/contract'
import { formatPercent } from 'common/util/format'
import { SiteLink } from '../site-link'
import { Col } from '../layout/col'
import { Row } from '../layout/row'
import { LoadingIndicator } from '../loading-indicator'
import { ProfitBadge } from '../bets-list'
export function ProbChangeTable(props: {
changes:
| { positiveChanges: CPMMContract[]; negativeChanges: CPMMContract[] }
| undefined
full?: boolean
}) {
const { changes, full } = props
if (!changes) return <LoadingIndicator />
const { positiveChanges, negativeChanges } = changes
const threshold = 0.075
const countOverThreshold = Math.max(
positiveChanges.findIndex((c) => c.probChanges.day < threshold) + 1,
negativeChanges.findIndex((c) => c.probChanges.day > -threshold) + 1
)
const maxRows = Math.min(positiveChanges.length, negativeChanges.length)
const rows = full
? maxRows
: Math.min(3, Math.min(maxRows, countOverThreshold))
const filteredPositiveChanges = positiveChanges.slice(0, rows)
const filteredNegativeChanges = negativeChanges.slice(0, rows)
if (rows === 0) return <div className="px-4 text-gray-500">None</div>
return (
<Col className="mb-4 w-full divide-x-2 divide-y rounded-lg bg-white shadow-md md:flex-row md:divide-y-0">
<Col className="flex-1 divide-y">
{filteredPositiveChanges.map((contract) => (
<ProbChangeRow key={contract.id} contract={contract} />
))}
</Col>
<Col className="flex-1 divide-y">
{filteredNegativeChanges.map((contract) => (
<ProbChangeRow key={contract.id} contract={contract} />
))}
</Col>
</Col>
)
}
function ProbChangeRow(props: { contract: CPMMContract }) {
const { contract } = props
return (
<Row className="items-center justify-between gap-4 hover:bg-gray-100">
<SiteLink
className="p-4 pr-0 font-semibold text-indigo-700"
href={contractPath(contract)}
>
<span className="line-clamp-2">{contract.question}</span>
</SiteLink>
<ProbChange className="py-2 pr-4 text-xl" contract={contract} />
</Row>
)
}
export function ProbChange(props: {
contract: CPMMContract
className?: string
}) {
const { contract, className } = props
const {
prob,
probChanges: { day: change },
} = contract
return (
<Col className={clsx('flex flex-col items-end', className)}>
<span className="mr-1.5 mb-0.5 text-2xl">
{formatPercent(Math.round(100 * prob) / 100)}
</span>
<ProfitBadge className="ml-0" profitPercent={100 * change} />
</Col>
)
}