manifold/web/components/contract/liquidity-graph.tsx
2022-06-08 08:57:15 -07:00

115 lines
3.0 KiB
TypeScript

import { DatumValue } from '@nivo/core'
import { Point, ResponsiveLine } from '@nivo/line'
import { NUMERIC_GRAPH_COLOR } from 'common/numeric-constants'
import { memo } from 'react'
import { range } from 'lodash'
import { getDpmOutcomeProbabilities } from '../../../common/calculate-dpm'
import { NumericContract } from '../../../common/contract'
import { useWindowSize } from '../../hooks/use-window-size'
import { Col } from '../layout/col'
import { formatLargeNumber, formatPercent } from 'common/util/format'
export type GraphPoint = {
// A probability between 0 and 1
x: number
// Amount of liquidity
y: number
}
export const LiquidityGraph = memo(function NumericGraph(props: {
min?: 0
max?: 1
points: GraphPoint[]
height?: number
marker?: number // Value between min and max to highlight on x-axis
}) {
const { height, min, max, points, marker } = props
// Really maxLiquidity
const maxLiquidity = 500
const data = [{ id: 'Probability', data: points, color: NUMERIC_GRAPH_COLOR }]
const yTickValues = [
0,
0.25 * maxLiquidity,
0.5 * maxLiquidity,
0.75 * maxLiquidity,
maxLiquidity,
]
const { width } = useWindowSize()
const numXTickValues = !width || width < 800 ? 2 : 5
return (
<div
className="w-full overflow-hidden"
style={{ height: height ?? (!width || width >= 800 ? 350 : 250) }}
>
<ResponsiveLine
data={data}
yScale={{ min: 0, max: maxLiquidity, type: 'linear' }}
yFormat={formatLiquidity}
axisLeft={{
tickValues: yTickValues,
format: formatLiquidity,
}}
xScale={{
type: 'linear',
min: min,
max: max,
}}
xFormat={(d) => `${formatLargeNumber(+d, 3)}`}
axisBottom={{
tickValues: numXTickValues,
format: (d) => `${formatLargeNumber(+d, 3)}`,
}}
colors={{ datum: 'color' }}
pointSize={0}
enableSlices="x"
sliceTooltip={({ slice }) => {
const point = slice.points[0]
return <Tooltip point={point} />
}}
enableGridX={!!width && width >= 800}
enableArea
margin={{ top: 20, right: 28, bottom: 22, left: 50 }}
markers={
marker
? [
{
axis: 'x',
value: marker,
lineStyle: { stroke: '#000', strokeWidth: 2 },
legend: `Implied: ${formatPercent(marker)}`,
},
]
: []
}
/>
</div>
)
})
function formatLiquidity(y: DatumValue) {
const p = Math.round(+y * 100) / 100
return `${p}L`
}
function Tooltip(props: { point: Point }) {
const { point } = props
return (
<Col className="border border-gray-300 bg-white py-2 px-3">
<div
className="pb-1"
style={{
color: point.serieColor,
}}
>
<strong>{point.serieId}</strong> {point.data.yFormatted}
</div>
<div>{formatLargeNumber(+point.data.x)}</div>
</Col>
)
}