53 lines
1.7 KiB
TypeScript
53 lines
1.7 KiB
TypeScript
import { useMemo, useRef } from 'react'
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import { sortBy } from 'lodash'
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import { scaleTime, scaleLinear } from 'd3'
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import { Bet } from 'common/bet'
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import { getInitialProbability, getProbability } from 'common/calculate'
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import { BinaryContract } from 'common/contract'
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import { useIsMobile } from 'web/hooks/use-is-mobile'
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import { MARGIN_X, MARGIN_Y, getDateRange } from '../helpers'
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import { SingleValueHistoryChart } from '../generic-charts'
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import { useElementWidth } from 'web/hooks/use-element-width'
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const getChartData = (contract: BinaryContract, bets: Bet[]) => {
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const sortedBets = sortBy(bets, (b) => b.createdTime)
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const startProb = getInitialProbability(contract)
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const endProb = getProbability(contract)
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return [
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[new Date(contract.createdTime), startProb] as const,
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...sortedBets.map((b) => [new Date(b.createdTime), b.probAfter] as const),
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[new Date(Date.now()), endProb] as const,
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]
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}
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export const BinaryContractChart = (props: {
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contract: BinaryContract
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bets: Bet[]
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height?: number
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}) => {
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const { contract, bets } = props
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const data = useMemo(() => getChartData(contract, bets), [contract, bets])
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const isMobile = useIsMobile(800)
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const containerRef = useRef<HTMLDivElement>(null)
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const width = useElementWidth(containerRef) ?? 0
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const height = props.height ?? isMobile ? 150 : 250
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const xScale = scaleTime(getDateRange(contract), [0, width - MARGIN_X])
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const yScale = scaleLinear([0, 1], [height - MARGIN_Y, 0])
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return (
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<div ref={containerRef}>
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{width && (
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<SingleValueHistoryChart
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w={width}
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h={height}
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xScale={xScale}
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yScale={yScale}
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data={data}
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color="#11b981"
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pct
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/>
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)}
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</div>
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)
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}
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