railbird-gql/component/charts/line-graph/line-graph.tsx

104 lines
2.8 KiB
TypeScript

import * as shape from "d3-shape";
import React from "react";
import { View } from "react-native";
import { LineChart, XAxis, YAxis } from "react-native-svg-charts";
import { graphStyles } from "../chart-styles";
import ChartView from "../chart-view";
import { CustomGrid } from "../custom-grid";
import { CommonProps } from "../graph-types";
import { useGraphData } from "../use-graph-data";
// TODO: separate PR will update useGraphData to take into account useCommonScale
// eslint-disable-next-line no-unused-vars, @typescript-eslint/no-unused-vars
const LineGraph: React.FC<CommonProps> = ({
data,
useCommonScale = false,
testID,
...props
}) => {
if (!data || typeof data !== "object") {
return null;
} // TODO:#38
const {
xValues,
yData,
yAxisLeftLabels,
yAxisRightLabels,
defaultProps: {
height,
contentInset,
min,
numberOfTicks,
lineStrokeWidth,
yAxisProps: {
maxLeftYAxisValue,
maxRightYAxisValue,
formatLeftYAxisLabel,
formatRightYAxisLabel,
},
},
// Proper error/loading handling from useQueryHandler can work with this rule #38
// eslint-disable-next-line react-hooks/rules-of-hooks
} = useGraphData(data, props);
return (
<ChartView>
<View
style={[graphStyles.rowContainer, { height: height }]}
testID={`line-graph-${testID}`}
>
<YAxis
data={yAxisLeftLabels.values}
contentInset={contentInset}
svg={graphStyles.yAxisFontStyle}
style={graphStyles.yAxisLeftPadding}
min={min}
max={maxLeftYAxisValue}
numberOfTicks={numberOfTicks}
formatLabel={formatLeftYAxisLabel}
/>
<View style={graphStyles.flex}>
<LineChart
style={graphStyles.flex}
data={yData}
curve={shape.curveNatural}
svg={{ strokeWidth: lineStrokeWidth }}
yAccessor={({ item }) =>
(item as unknown as { value: number }).value
}
xAccessor={({ index }) => xValues[index] as number}
gridMin={min}
contentInset={contentInset}
numberOfTicks={numberOfTicks}
>
<CustomGrid />
</LineChart>
<XAxis
data={xValues.map((_, index: number) => index)} // TODO: update when useGraphHook returns explicit display values
style={[graphStyles.xAxisMarginTop]}
svg={graphStyles.xAxisFontStyle}
numberOfTicks={numberOfTicks}
contentInset={graphStyles.horizontalInset}
/>
</View>
<YAxis
data={yAxisRightLabels?.values ?? yAxisLeftLabels.values}
contentInset={contentInset}
svg={graphStyles.yAxisFontStyle}
style={[
graphStyles.yAxisRightPadding,
{ height: useCommonScale ? 0 : "auto" },
]}
min={min}
max={maxRightYAxisValue}
numberOfTicks={numberOfTicks}
formatLabel={formatRightYAxisLabel} // formatRightYAxisLabel formatting could come from yAxisRightLabels object
/>
</View>
</ChartView>
);
};
export default LineGraph;