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import type { ChartConfig } from "@/ahuora-design-system/ui/chart";
import { ChartContainer, ChartTooltip } from "@/ahuora-design-system/ui/chart";
import type {
ChartAssumption,
DrillbackHandler,
ParsedChartDataset,
WarningRef,
} from "../model/types";
import { numberValue } from "../model/valueParsing";
import { chartTitle } from "./chartData";
import { formatCompactAxisTick, mergeAssumptions } from "./chartFormatters";
import {
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";
type TimelineRow = {
elapsedHours: number;
unit: string;
sourceRows: Record<
string,
{
unit?: string;
assumptions?: ChartAssumption[];
warningRefs?: WarningRef[];
}
>;
warningRefs: WarningRef[];
[seriesKey: string]: unknown;
};
export function OperatingCostTimelineChart({
dataset,
}: {
dataset: ParsedChartDataset;
onDrillback: DrillbackHandler;
}) {
const rows = timelineRows(dataset);
const config = timelineChartConfig(dataset);
const showDots = rows.length <= 40;
const yAxisLabel = `Operating cost (${timelineUnit(dataset)})`;
return (
<div className="flex h-full flex-col">
<div className="sr-only" aria-label="Operating cost x-axis label">
Operating hours
</div>
<div className="sr-only" aria-label="Operating cost y-axis label">
{yAxisLabel}
</div>
<ChartContainer
config={config}
className="min-h-0 w-full flex-1"
aria-label={`Graph ${chartTitle(dataset)}`}
>
<LineChart
data={rows}
margin={{
left: 0,
right: 28,
top: 16,
bottom: RESULT_CHART_BOTTOM_MARGIN,
}}
>
<CartesianGrid vertical={false} strokeOpacity={0.35} />
<XAxis
dataKey="elapsedHours"
type="number"
tickFormatter={formatOperatingHourTick}
tickLine={false}
axisLine={false}
label={{
value: "Operating hours",
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={series.label}
stroke={timelineColor(index)}
strokeWidth={series.key === "total" ? 2.5 : 1.75}
dot={showDots ? { r: series.key === "total" ? 3 : 2 } : false}
activeDot={{ r: 4 }}
connectNulls
/>
))}
</LineChart>
</ChartContainer>
<OperatingTimelineLegend dataset={dataset} />
</div>
);
}
function timelineRows(dataset: ParsedChartDataset): TimelineRow[] {
const rowsByElapsed = new Map<number, TimelineRow>();
for (const series of dataset.series) {
for (const point of series.points) {
const elapsedHours =
numberValue(point.metadata.elapsed_hours) ?? rowsByElapsed.size;
const row =
rowsByElapsed.get(elapsedHours) ??
({
elapsedHours,
unit: point.unit || series.unit,
sourceRows: {},
warningRefs: [],
} as TimelineRow);
row[series.key] = point.value;
row.sourceRows[series.key] = {
unit: point.unit || series.unit,
assumptions: mergeAssumptions(point.assumptions),
warningRefs: point.warning_refs,
};
row.warningRefs = mergeWarnings([
...row.warningRefs,
...point.warning_refs,
]);
rowsByElapsed.set(elapsedHours, row);
}
}
return Array.from(rowsByElapsed.values()).sort(
(left, right) => left.elapsedHours - right.elapsedHours,
);
}
function timelineChartConfig(dataset: ParsedChartDataset): ChartConfig {
return Object.fromEntries(
dataset.series.map((series, index) => [
series.key,
{
label: series.label,
color: timelineColor(index),
},
]),
) as ChartConfig;
}
function OperatingTimelineLegend({ dataset }: { dataset: ParsedChartDataset }) {
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: timelineColor(index) }}
aria-hidden="true"
/>
<span className="truncate">{series.label}</span>
</div>
))}
</div>
);
}
function timelineColor(index: number) {
return operatingTimelineColors[index % operatingTimelineColors.length];
}
function timelineUnit(dataset: ParsedChartDataset) {
return (
dataset.series
.flatMap((series) => series.points)
.find((point) => point.unit)?.unit ||
dataset.series.find((series) => series.unit)?.unit ||
"currency"
);
}
function formatOperatingHourTick(value: string | number) {
const parsed = Number(value);
Iif (!Number.isFinite(parsed)) return String(value);
return new Intl.NumberFormat("en-NZ", {
maximumFractionDigits: 1,
notation: Math.abs(parsed) >= 10000 ? "compact" : "standard",
}).format(parsed);
}
function mergeWarnings(warnings: WarningRef[]) {
return Array.from(
new Map(
warnings.map((warning) => [
`${warning.code}-${warning.message}-${warning.source_row_key ?? ""}`,
warning,
]),
).values(),
);
}
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