manifold/web/components/contract/prob-change-table.tsx
2022-09-29 11:42:17 -05:00

105 lines
3.1 KiB
TypeScript

import { sortBy } from 'lodash'
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 { useContractWithPreload } from 'web/hooks/use-contract'
export function ProbChangeTable(props: {
changes: CPMMContract[] | undefined
full?: boolean
}) {
const { changes, full } = props
if (!changes) return <LoadingIndicator />
const descendingChanges = sortBy(changes, (c) => c.probChanges.day).reverse()
const ascendingChanges = sortBy(changes, (c) => c.probChanges.day)
const threshold = 0.01
const positiveAboveThreshold = descendingChanges.filter(
(c) => c.probChanges.day > threshold
)
const negativeAboveThreshold = ascendingChanges.filter(
(c) => c.probChanges.day < threshold
)
const maxRows = Math.min(
positiveAboveThreshold.length,
negativeAboveThreshold.length
)
const rows = full ? maxRows : Math.min(3, maxRows)
const filteredPositiveChanges = positiveAboveThreshold.slice(0, rows)
const filteredNegativeChanges = negativeAboveThreshold.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>
)
}
export function ProbChangeRow(props: {
contract: CPMMContract
className?: string
}) {
const { className } = props
const contract =
(useContractWithPreload(props.contract) as CPMMContract) ?? props.contract
return (
<Row
className={clsx(
'items-center justify-between gap-4 hover:bg-gray-100',
className
)}
>
<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
const color = change >= 0 ? 'text-green-500' : 'text-red-500'
return (
<Col className={clsx('flex flex-col items-end', className)}>
<div className="mb-0.5 mr-0.5 text-2xl">
{formatPercent(Math.round(100 * prob) / 100)}
</div>
<div className={clsx('text-base', color)}>
{(change > 0 ? '+' : '') + (change * 100).toFixed(0) + '%'}
</div>
</Col>
)
}