Massive/Chart.tsx

import {useTheme} from '@react-navigation/native'
import * as shape from 'd3-shape'
import {View} from 'react-native'
import {Grid, LineChart, XAxis, YAxis} from 'react-native-svg-charts'
import {CombinedDarkTheme, CombinedDefaultTheme} from './App'
import {MARGIN, PADDING} from './constants'
import GymSet from './gym-set'
import useDark from './use-dark'

export default function Chart({
  yData,
  xFormat,
  xData,
  yFormat,
}: {
  yData: number[]
  xData: GymSet[]
  xFormat: (value: any, index: number) => string
  yFormat: (value: any) => string
}) {
  const {colors} = useTheme()
  const dark = useDark()
  const axesSvg = {
    fontSize: 10,
    fill: dark
      ? CombinedDarkTheme.colors.text
      : CombinedDefaultTheme.colors.text,
  }
  const verticalContentInset = {top: 10, bottom: 10}
  const xAxisHeight = 30

  return (
    <>
      <View
        style={{
          height: 300,
          padding: PADDING,
          flexDirection: 'row',
        }}>
        <YAxis
          data={yData}
          style={{marginBottom: xAxisHeight}}
          contentInset={verticalContentInset}
          svg={axesSvg}
          formatLabel={yFormat}
        />
        <View style={{flex: 1, marginLeft: MARGIN}}>
          <LineChart
            style={{flex: 1}}
            data={yData}
            contentInset={verticalContentInset}
            curve={shape.curveBasis}
            svg={{
              stroke: colors.primary,
            }}>
            <Grid />
          </LineChart>
          <XAxis
            data={xData}
            formatLabel={xFormat}
            contentInset={{left: 15, right: 16}}
            svg={axesSvg}
          />
        </View>
      </View>
    </>
  )
}