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Bar,
BarChart,
CartesianGrid,
Line,
LineChart,
XAxis,
YAxis,
} from "recharts";
import type { ChartConfig } from "@/ahuora-design-system/ui/chart";
import { ChartContainer, ChartTooltip } from "@/ahuora-design-system/ui/chart";
import type { ChartSeries, ParsedChartDataset } from "../../model/types";
import { stringField } from "../../model/valueParsing";
import { formatCompactAxisTick, formatYearAxisTick } from "../chartFormatters";
import {
COMPARISON_CHART_CASH_FLOW,
operatingTimelineColors,
RESULT_CHART_BOTTOM_MARGIN,
RESULT_CHART_X_AXIS_LABEL_OFFSET,
RESULT_CHART_Y_AXIS_LABEL_DY,
RESULT_CHART_Y_AXIS_LABEL_OFFSET,
RESULT_CHART_Y_AXIS_WIDTH,
} from "../constants";
import { EconomicsChartTooltip } from "../EconomicsChartTooltip";
import {
cashFlowOverlayRows,
costBreakdownRows,
costBreakdownTickLines,
} from "./studyComparisonOverlayData";
const COST_BREAKDOWN_AXIS_WIDTH = 270;
const COST_BREAKDOWN_TICK_LINE_HEIGHT = 20;
export function LineOverlayComparisonChart({
dataset,
}: {
dataset: ParsedChartDataset;
}) {
const rows = cashFlowOverlayRows(dataset);
const config = datasetChartConfig(dataset);
const yAxisLabel = `Cash flow (${chartUnit(dataset)})`;
return (
<div className="flex h-full flex-col">
<div className="sr-only" aria-label={`${dataset.title} x-axis label`}>
Year
</div>
<div className="sr-only" aria-label={`${dataset.title} y-axis label`}>
{yAxisLabel}
</div>
<ChartContainer
config={config}
className="min-h-0 w-full flex-1"
aria-label={`Graph ${dataset.title}`}
>
<LineChart
data={rows}
margin={{
left: 0,
right: 28,
top: 16,
bottom: RESULT_CHART_BOTTOM_MARGIN,
}}
>
<CartesianGrid vertical={false} strokeOpacity={0.35} />
<XAxis
dataKey="label"
type="number"
tickFormatter={formatYearAxisTick}
tickLine={false}
axisLine={false}
label={{
value: "Year",
position: "insideBottom",
offset: RESULT_CHART_X_AXIS_LABEL_OFFSET,
}}
/>
<YAxis
width={RESULT_CHART_Y_AXIS_WIDTH}
tickFormatter={formatCompactAxisTick}
tickLine={false}
axisLine={false}
label={{
value: yAxisLabel,
angle: -90,
position: "insideLeft",
offset: RESULT_CHART_Y_AXIS_LABEL_OFFSET,
dy: RESULT_CHART_Y_AXIS_LABEL_DY,
}}
/>
<ChartTooltip content={<EconomicsChartTooltip />} />
{dataset.series.map((series, index) => (
<Line
key={series.key}
type="monotone"
dataKey={series.key}
name={seriesDisplayLabel(dataset, series)}
stroke={seriesColor(index)}
strokeWidth={2}
dot={rows.length <= 40 ? { r: 2.5 } : false}
activeDot={{ r: 4 }}
connectNulls
/>
))}
</LineChart>
</ChartContainer>
<ComparisonLegend dataset={dataset} />
</div>
);
}
export function CostBreakdownComparisonChart({
dataset,
}: {
dataset: ParsedChartDataset;
}) {
const rows = costBreakdownRows(dataset);
const config = datasetChartConfig(dataset);
return (
<div className="flex h-full flex-col">
<div className="sr-only" aria-label={`${dataset.title} x-axis label`}>
Amount
</div>
<ChartContainer
config={config}
className="min-h-0 w-full flex-1"
aria-label={`Graph ${dataset.title}`}
>
<BarChart
data={rows}
layout="vertical"
margin={{
left: 8,
right: 16,
top: 8,
bottom: RESULT_CHART_BOTTOM_MARGIN,
}}
barCategoryGap={16}
>
<CartesianGrid horizontal={false} />
<XAxis
type="number"
tickLine={false}
axisLine={false}
tickFormatter={formatCompactAxisTick}
label={{
value: "Amount",
position: "insideBottom",
offset: RESULT_CHART_X_AXIS_LABEL_OFFSET,
}}
/>
<YAxis
type="category"
dataKey="label"
width={COST_BREAKDOWN_AXIS_WIDTH}
interval={0}
tickMargin={8}
tickLine={false}
axisLine={false}
tick={<CostBreakdownYAxisTick />}
/>
<ChartTooltip content={<EconomicsChartTooltip />} />
{dataset.series.map((series, index) => (
<Bar
key={series.key}
dataKey={series.key}
name={seriesDisplayLabel(dataset, series)}
fill={seriesColor(index)}
/>
))}
</BarChart>
</ChartContainer>
<ComparisonLegend dataset={dataset} />
</div>
);
}
function CostBreakdownYAxisTick({
x = 0,
y = 0,
payload,
}: {
x?: number;
y?: number;
payload?: { value?: unknown };
}) {
const lines = costBreakdownTickLines(payload?.value);
const initialDy = -((lines.length - 1) * COST_BREAKDOWN_TICK_LINE_HEIGHT) / 2;
return (
<text
x={x}
y={y}
textAnchor="end"
className="fill-muted-foreground"
fontSize={12}
>
{lines.map((line, index) => (
<tspan
key={`${line}-${index}`}
x={x}
dy={index === 0 ? initialDy : COST_BREAKDOWN_TICK_LINE_HEIGHT}
>
{line}
</tspan>
))}
</text>
);
}
function datasetChartConfig(dataset: ParsedChartDataset): ChartConfig {
return Object.fromEntries(
dataset.series.map((series, index) => [
series.key,
{
label: seriesDisplayLabel(dataset, series),
color: seriesColor(index),
},
]),
) as ChartConfig;
}
function ComparisonLegend({ dataset }: { dataset: ParsedChartDataset }) {
Iif (dataset.series.length < 2) return null;
return (
<div className="mt-3 flex flex-wrap items-center justify-start gap-x-4 gap-y-1.5 pl-[84px] pr-2 text-xs leading-5 text-muted-foreground">
{dataset.series.map((series, index) => (
<div key={series.key} className="flex min-w-0 items-center gap-1.5">
<span
className="size-3 rounded-full"
style={{ backgroundColor: seriesColor(index) }}
aria-hidden="true"
/>
<span className="truncate">
{seriesDisplayLabel(dataset, series)}
</span>
</div>
))}
</div>
);
}
function seriesDisplayLabel(
dataset: ParsedChartDataset,
series: ChartSeries,
): string {
if (dataset.chart_key !== COMPARISON_CHART_CASH_FLOW) {
return series.label;
}
const metricLabel = stringField(series.points[0]?.metadata.metric_label);
if (!metricLabel || series.label.includes(metricLabel)) {
return series.label;
}
return `${series.label} - ${metricLabel}`;
}
function chartUnit(dataset: ParsedChartDataset) {
return (
dataset.series
.flatMap((series) => series.points)
.find((point) => point.unit)?.unit ||
dataset.series.find((series) => series.unit)?.unit ||
"amount"
);
}
function seriesColor(index: number) {
return operatingTimelineColors[index % operatingTimelineColors.length];
}
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