Add untracked chart and schema files

This commit is contained in:
2026-03-13 00:11:59 -04:00
parent 8a8c4f7177
commit 01199d489a
16 changed files with 1794 additions and 0 deletions

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import { useCallback, useRef } from 'react';
import { toPng } from 'html-to-image';
import { getChartColors, getComputedColors } from '../utils/chart-colors';
export function useChartExport() {
const chartRef = useRef<HTMLDivElement>(null);
const exportChart = useCallback(async (filename: string = 'chart.png') => {
if (!chartRef.current) {
console.error('Chart ref not available');
return;
}
try {
// Get background color from CSS variable
const colors = getChartColors();
const computedColors = getComputedColors(colors);
const backgroundColor = computedColors.tooltipBg || colors.tooltipBg;
const dataUrl = await toPng(chartRef.current, {
quality: 1.0,
pixelRatio: 2, // High DPI export
backgroundColor: backgroundColor
});
// Create download link
const link = document.createElement('a');
link.download = filename;
link.href = dataUrl;
link.click();
} catch (error) {
console.error('Failed to export chart:', error);
throw error;
}
}, []);
return { chartRef, exportChart };
}

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import { useState, useCallback } from 'react';
import type { ChartZoomState } from '@/lib/types';
export function useChartZoom(dataLength: number) {
const [zoomState, setZoomState] = useState<ChartZoomState>({
startIndex: 0,
endIndex: Math.max(0, dataLength - 1),
isZoomed: false
});
const handleZoomChange = useCallback(
(brushData: { startIndex?: number; endIndex?: number }) => {
if (
brushData.startIndex === undefined ||
brushData.endIndex === undefined
) {
return;
}
setZoomState({
startIndex: brushData.startIndex,
endIndex: brushData.endIndex,
isZoomed:
brushData.startIndex !== 0 ||
brushData.endIndex !== dataLength - 1
});
},
[dataLength]
);
const resetZoom = useCallback(() => {
setZoomState({
startIndex: 0,
endIndex: Math.max(0, dataLength - 1),
isZoomed: false
});
}, [dataLength]);
return {
zoomState,
handleZoomChange,
resetZoom
};
}

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'use client';
import { useState, useMemo } from 'react';
import type { InteractivePriceChartProps, ChartType, TimeRange } from '@/lib/types';
import { filterByTimeRange, isOHLCVData } from './utils/chart-data-transformers';
import { ChartContainer } from './primitives/chart-container';
import { ChartToolbar } from './primitives/chart-toolbar';
import { LineChartView } from './renderers/line-chart-view';
import { CombinationChartView } from './renderers/combination-chart-view';
import { VolumeIndicator } from './primitives/volume-indicator';
import { useChartExport } from './hooks/use-chart-export';
export function InteractivePriceChart({
data,
dataSeries,
defaultChartType = 'line',
defaultTimeRange = '1Y',
showVolume = false,
showToolbar = true,
height = 400,
loading = false,
error = null,
formatters,
onChartTypeChange,
onTimeRangeChange
}: InteractivePriceChartProps) {
const [chartType, setChartType] = useState<ChartType>(defaultChartType);
const [timeRange, setTimeRange] = useState<TimeRange>(defaultTimeRange);
const filteredData = useMemo(() => filterByTimeRange(data, timeRange), [data, timeRange]);
const filteredDataSeries = useMemo(
() => dataSeries?.map((series) => ({
...series,
data: filterByTimeRange(series.data, timeRange)
})),
[dataSeries, timeRange]
);
const { chartRef, exportChart } = useChartExport();
const handleChartTypeChange = (type: ChartType) => {
setChartType(type);
onChartTypeChange?.(type);
};
const handleTimeRangeChange = (range: TimeRange) => {
setTimeRange(range);
onTimeRangeChange?.(range);
};
const handleExport = () => {
exportChart(`chart-${Date.now()}.png`);
};
const shouldShowVolume = showVolume && filteredData.some(isOHLCVData);
return (
<div ref={chartRef} className="w-full">
{showToolbar && (
<ChartToolbar
chartType={chartType}
timeRange={timeRange}
onChartTypeChange={handleChartTypeChange}
onTimeRangeChange={handleTimeRangeChange}
onExport={handleExport}
/>
)}
<ChartContainer height={height} loading={loading} error={error}>
{chartType === 'line' && (
<LineChartView
data={filteredData}
formatters={formatters}
/>
)}
{chartType === 'combination' && filteredDataSeries && (
<CombinationChartView
dataSeries={filteredDataSeries}
formatters={formatters}
/>
)}
</ChartContainer>
{shouldShowVolume && (
<VolumeIndicator
data={filteredData.filter(isOHLCVData)}
height={80}
formatters={formatters}
/>
)}
</div>
);
}

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import { cn } from '@/lib/utils';
type ChartContainerProps = {
children: React.ReactNode;
height?: number;
loading?: boolean;
error?: string | null;
className?: string;
};
export function ChartContainer({
children,
height = 400,
loading = false,
error = null,
className
}: ChartContainerProps) {
return (
<div
className={cn(
'relative w-full rounded-xl border border-[color:var(--line-weak)] bg-[color:var(--panel-soft)]',
className
)}
style={{ height: `${height}px` }}
>
{loading && (
<div className="absolute inset-0 flex items-center justify-center">
<div className="text-sm text-[color:var(--terminal-muted)]">Loading chart...</div>
</div>
)}
{error && (
<div className="absolute inset-0 flex items-center justify-center">
<div className="text-sm text-[color:var(--danger)]">{error}</div>
</div>
)}
{!loading && !error && (
<div className="h-full w-full p-4">
{children}
</div>
)}
</div>
);
}

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import { Download } from 'lucide-react';
import { cn } from '@/lib/utils';
import type { ChartType, TimeRange } from '@/lib/types';
import { Button } from '@/components/ui/button';
type ChartToolbarProps = {
chartType: ChartType;
timeRange: TimeRange;
onChartTypeChange: (type: ChartType) => void;
onTimeRangeChange: (range: TimeRange) => void;
onExport: () => void;
};
const TIME_RANGES: TimeRange[] = ['1W', '1M', '3M', '1Y', '3Y', '5Y', '10Y', '20Y'];
const CHART_TYPES: { value: ChartType; label: string }[] = [
{ value: 'line', label: 'Line' },
{ value: 'combination', label: 'Compare' }
];
export function ChartToolbar({
chartType,
timeRange,
onChartTypeChange,
onTimeRangeChange,
onExport
}: ChartToolbarProps) {
return (
<div className="mb-4 flex flex-col gap-3 lg:flex-row lg:items-center lg:justify-between">
<div className="flex flex-wrap gap-1.5">
{TIME_RANGES.map((range) => (
<button
key={range}
type="button"
onClick={() => onTimeRangeChange(range)}
className={cn(
'min-h-9 rounded-lg px-3 py-1.5 text-xs font-medium transition-colors',
timeRange === range
? 'bg-[color:var(--accent)] text-[#16181c]'
: 'bg-[color:var(--panel-soft)] text-[color:var(--terminal-muted)] hover:bg-[color:var(--panel-bright)] hover:text-[color:var(--terminal-bright)]'
)}
>
{range}
</button>
))}
</div>
<div className="flex items-center gap-2">
<div className="flex gap-1">
{CHART_TYPES.map((type) => (
<button
key={type.value}
type="button"
onClick={() => onChartTypeChange(type.value)}
className={cn(
'rounded-lg px-3 py-1.5 text-xs font-medium transition-colors',
chartType === type.value
? 'bg-[color:var(--accent)] text-[#16181c]'
: 'bg-[color:var(--panel-soft)] text-[color:var(--terminal-muted)] hover:bg-[color:var(--panel-bright)] hover:text-[color:var(--terminal-bright)]'
)}
>
{type.label}
</button>
))}
</div>
<Button
variant="ghost"
onClick={onExport}
className="min-h-9 gap-1.5 px-2.5 py-1.5 text-xs"
>
<Download className="h-3.5 w-3.5" />
Export
</Button>
</div>
</div>
);
}

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import type { TooltipContentProps, TooltipPayloadEntry } from 'recharts';
import { formatCurrency, formatCompactCurrency } from '@/lib/format';
import { getChartColors } from '../utils/chart-colors';
import { isOHLCVData } from '../utils/chart-data-transformers';
type ChartTooltipProps = TooltipContentProps & {
formatters?: {
price?: (value: number) => string;
date?: (value: string) => string;
volume?: (value: number) => string;
};
};
export function ChartTooltip(props: ChartTooltipProps) {
const { active, payload, label, formatters } = props;
if (!active || !payload || payload.length === 0) return null;
const colors = getChartColors();
const formatDate = formatters?.date || ((date: string) => new Date(date).toLocaleDateString());
const formatPrice = formatters?.price || formatCurrency;
const formatVolume = formatters?.volume || formatCompactCurrency;
const data = payload[0].payload;
return (
<div
className="min-w-[180px] rounded-xl border p-3 backdrop-blur-sm"
style={{
backgroundColor: colors.tooltipBg,
borderColor: colors.tooltipBorder
}}
>
<div className="mb-2 text-xs uppercase tracking-wider" style={{ color: colors.muted }}>
{formatDate(label as string)}
</div>
{isOHLCVData(data) ? (
<div className="space-y-1.5">
<TooltipRow label="Open" value={formatPrice(data.open)} color={colors.text} />
<TooltipRow label="High" value={formatPrice(data.high)} color={colors.positive} />
<TooltipRow label="Low" value={formatPrice(data.low)} color={colors.negative} />
<TooltipRow label="Close" value={formatPrice(data.close)} color={colors.text} />
<div className="mt-2 border-t pt-2" style={{ borderColor: colors.tooltipBorder }}>
<TooltipRow label="Volume" value={formatVolume(data.volume)} color={colors.muted} />
</div>
</div>
) : (
<div className="space-y-1.5">
{payload.map((entry: TooltipPayloadEntry, index: number) => (
<TooltipRow
key={index}
label={String(entry.name || 'Value')}
value={formatPrice(entry.value as number)}
color={entry.color || colors.text}
/>
))}
</div>
)}
</div>
);
}
type TooltipRowProps = {
label: string;
value: string;
color: string;
};
function TooltipRow({ label, value, color }: TooltipRowProps) {
return (
<div className="flex items-center justify-between gap-4 text-xs">
<span style={{ color: color }}>{label}:</span>
<span className="font-mono font-medium" style={{ color: color }}>
{value}
</span>
</div>
);
}

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import { BarChart, Bar, YAxis, Tooltip, ResponsiveContainer } from 'recharts';
import type { OHLCVDataPoint } from '@/lib/types';
import { getChartColors } from '../utils/chart-colors';
import { formatCompactCurrency } from '@/lib/format';
type VolumeIndicatorProps = {
data: OHLCVDataPoint[];
height?: number;
formatters?: {
volume?: (value: number) => string;
};
};
export function VolumeIndicator({
data,
height = 80,
formatters
}: VolumeIndicatorProps) {
const colors = getChartColors();
if (data.length === 0) return null;
const formatVolume = formatters?.volume || formatCompactCurrency;
return (
<div style={{ height: `${height}px`, width: '100%' }} className="mt-2">
<ResponsiveContainer width="100%" height="100%">
<BarChart data={data}>
<YAxis
orientation="right"
tickFormatter={formatVolume}
stroke={colors.muted}
fontSize={10}
width={60}
/>
<Tooltip
formatter={(value) => [
formatVolume(typeof value === 'number' ? value : Number(value ?? 0)),
'Volume'
]}
labelFormatter={(label) => `Date: ${label}`}
contentStyle={{
backgroundColor: colors.tooltipBg,
border: `1px solid ${colors.tooltipBorder}`,
borderRadius: '0.75rem',
fontSize: '0.75rem'
}}
/>
<Bar
dataKey="volume"
fill={colors.volume}
opacity={0.3}
isAnimationActive={data.length <= 500}
/>
</BarChart>
</ResponsiveContainer>
</div>
);
}

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import {
ComposedChart,
XAxis,
YAxis,
CartesianGrid,
Tooltip,
ResponsiveContainer,
Scatter
} from 'recharts';
import type { ChartDataPoint } from '@/lib/types';
import { getChartColors } from '../utils/chart-colors';
import { ChartTooltip } from '../primitives/chart-tooltip';
import { CandlestickShape } from '../utils/candlestick-shapes';
import { isOHLCVData } from '../utils/chart-data-transformers';
type CandlestickChartViewProps = {
data: ChartDataPoint[];
formatters?: {
price?: (value: number) => string;
date?: (value: string) => string;
volume?: (value: number) => string;
};
};
export function CandlestickChartView({
data,
formatters
}: CandlestickChartViewProps) {
const colors = getChartColors();
const ohlcvData = data.filter(isOHLCVData);
if (ohlcvData.length === 0) {
return (
<div className="flex h-full items-center justify-center text-sm text-[color:var(--terminal-muted)]">
Candlestick chart requires OHLCV data
</div>
);
}
return (
<ResponsiveContainer width="100%" height="100%">
<ComposedChart data={ohlcvData}>
<CartesianGrid strokeDasharray="2 2" stroke={colors.grid} />
<XAxis
dataKey="date"
stroke={colors.muted}
fontSize={11}
tickFormatter={formatters?.date}
minTickGap={32}
/>
<YAxis
stroke={colors.muted}
fontSize={11}
tickFormatter={formatters?.price}
width={60}
domain={['auto', 'auto']}
/>
<Tooltip
content={(tooltipProps) => <ChartTooltip {...tooltipProps} formatters={formatters} />}
cursor={{ stroke: colors.muted, strokeDasharray: '3 3' }}
/>
<Scatter
dataKey="close"
shape={<CandlestickShape />}
isAnimationActive={false}
/>
</ComposedChart>
</ResponsiveContainer>
);
}

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import {
ComposedChart,
Line,
XAxis,
YAxis,
CartesianGrid,
Tooltip,
ResponsiveContainer,
Legend
} from 'recharts';
import type { DataSeries } from '@/lib/types';
import { getChartColors } from '../utils/chart-colors';
import { ChartTooltip } from '../primitives/chart-tooltip';
import { mergeDataSeries } from '../utils/chart-data-transformers';
type CombinationChartViewProps = {
dataSeries: DataSeries[];
formatters?: {
price?: (value: number) => string;
date?: (value: string) => string;
volume?: (value: number) => string;
};
};
export function CombinationChartView({
dataSeries,
formatters
}: CombinationChartViewProps) {
const colors = getChartColors();
if (!dataSeries || dataSeries.length === 0) {
return (
<div className="flex h-full items-center justify-center text-sm text-[color:var(--terminal-muted)]">
No data series provided
</div>
);
}
const mergedData = mergeDataSeries(dataSeries);
const visibleSeries = dataSeries.filter(series => series.visible !== false);
const baseValues = Object.fromEntries(visibleSeries.map((series) => {
const initialPoint = mergedData.find((entry) => typeof entry[series.id] === 'number');
const baseValue = typeof initialPoint?.[series.id] === 'number' ? Number(initialPoint[series.id]) : null;
return [series.id, baseValue];
}));
const normalizedData = mergedData.map((point) => {
const normalizedPoint: Record<string, string | number | null> = { date: point.date };
visibleSeries.forEach((series) => {
const baseValue = baseValues[series.id];
const currentValue = typeof point[series.id] === 'number' ? Number(point[series.id]) : null;
normalizedPoint[series.id] = baseValue && currentValue
? ((currentValue / baseValue) - 1) * 100
: null;
});
return normalizedPoint;
});
return (
<ResponsiveContainer width="100%" height="100%">
<ComposedChart data={normalizedData}>
<CartesianGrid strokeDasharray="2 2" stroke={colors.grid} />
<XAxis
dataKey="date"
stroke={colors.muted}
fontSize={11}
tickFormatter={formatters?.date}
minTickGap={32}
/>
<YAxis
stroke={colors.muted}
fontSize={11}
tickFormatter={(value) => `${Number(value).toFixed(0)}%`}
width={60}
domain={['auto', 'auto']}
/>
<Tooltip
content={(tooltipProps) => (
<ChartTooltip
{...tooltipProps}
formatters={{
...formatters,
price: (value: number) => `${value.toFixed(2)}%`
}}
/>
)}
cursor={{ stroke: colors.muted, strokeDasharray: '3 3' }}
/>
<Legend />
{visibleSeries.map(series => {
const seriesColor = series.color || colors.primary;
return (
<Line
key={series.id}
type="monotone"
dataKey={series.id}
name={series.label}
stroke={seriesColor}
strokeWidth={2}
dot={false}
connectNulls={false}
isAnimationActive={normalizedData.length <= 500}
/>
);
})}
</ComposedChart>
</ResponsiveContainer>
);
}

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import {
LineChart,
Line,
XAxis,
YAxis,
CartesianGrid,
Tooltip,
ResponsiveContainer
} from 'recharts';
import type { ChartDataPoint } from '@/lib/types';
import { getChartColors } from '../utils/chart-colors';
import { ChartTooltip } from '../primitives/chart-tooltip';
import { isPriceData, isOHLCVData } from '../utils/chart-data-transformers';
type LineChartViewProps = {
data: ChartDataPoint[];
formatters?: {
price?: (value: number) => string;
date?: (value: string) => string;
volume?: (value: number) => string;
};
};
export function LineChartView({
data,
formatters
}: LineChartViewProps) {
const colors = getChartColors();
const chartData = data.map(point => {
if (isOHLCVData(point)) {
return {
date: point.date,
price: point.close,
open: point.open,
high: point.high,
low: point.low,
close: point.close,
volume: point.volume
};
} else if (isPriceData(point)) {
return {
date: point.date,
price: point.price
};
}
return point;
});
return (
<ResponsiveContainer width="100%" height="100%">
<LineChart data={chartData} margin={{ top: 5, right: 5, left: 5, bottom: 5 }}>
<CartesianGrid
strokeDasharray="3 3"
stroke={colors.grid}
vertical={false}
/>
<XAxis
dataKey="date"
stroke={colors.muted}
fontSize={11}
tickFormatter={formatters?.date}
minTickGap={50}
axisLine={{ stroke: colors.grid }}
tickLine={false}
/>
<YAxis
stroke={colors.muted}
fontSize={11}
tickFormatter={formatters?.price}
width={65}
domain={['auto', 'auto']}
axisLine={false}
tickLine={false}
orientation="right"
/>
<Tooltip
content={(tooltipProps) => <ChartTooltip {...tooltipProps} formatters={formatters} />}
cursor={{ stroke: colors.muted, strokeWidth: 1, strokeDasharray: '5 5' }}
isAnimationActive={false}
/>
<Line
type="linear"
dataKey="price"
stroke={colors.primary}
strokeWidth={2}
dot={false}
activeDot={{
r: 4,
stroke: colors.primary,
strokeWidth: 2,
fill: colors.tooltipBg
}}
isAnimationActive={false}
connectNulls={true}
/>
</LineChart>
</ResponsiveContainer>
);
}

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import { getPriceChangeColor } from './chart-colors';
type CandlestickShapeProps = {
cx?: number;
payload?: {
open: number;
high: number;
low: number;
close: number;
};
};
/**
* Custom candlestick shape component for Recharts
* Renders candlestick with wick and body
*/
export function CandlestickShape(props: CandlestickShapeProps) {
const { cx, payload } = props;
if (!payload || !cx) return null;
const { open, high, low, close } = payload;
const isPositive = close >= open;
const color = getPriceChangeColor(close - open);
// Calculate positions
const bodyTop = Math.min(open, close);
const bodyBottom = Math.max(open, close);
const bodyHeight = Math.max(bodyBottom - bodyTop, 1);
// Candlestick width
const width = 8;
return (
<g>
{/* Upper wick */}
<line
x1={cx}
y1={high}
x2={cx}
y2={bodyTop}
stroke={color}
strokeWidth={1}
/>
{/* Body */}
<rect
x={cx - width / 2}
y={bodyTop}
width={width}
height={bodyHeight}
fill={isPositive ? 'transparent' : color}
stroke={color}
strokeWidth={1}
/>
{/* Lower wick */}
<line
x1={cx}
y1={bodyBottom}
x2={cx}
y2={low}
stroke={color}
strokeWidth={1}
/>
</g>
);
}

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import type { ChartColorPalette } from '@/lib/types';
/**
* Get chart color palette using CSS variables for theming
* These colors match the existing dark theme in the codebase
*/
export function getChartColors(): ChartColorPalette {
return {
primary: 'var(--accent)',
secondary: 'var(--terminal-muted)',
positive: '#96f5bf', // Green - matches existing price-history-card
negative: '#ff9f9f', // Red - matches existing price-history-card
grid: 'var(--line-weak)',
text: 'var(--terminal-bright)',
muted: 'var(--terminal-muted)',
tooltipBg: 'rgba(31, 34, 39, 0.96)',
tooltipBorder: 'var(--line-strong)',
volume: 'var(--terminal-muted)'
};
}
/**
* Get color for price change (positive/negative)
*/
export function getPriceChangeColor(change: number): string {
const colors = getChartColors();
return change >= 0 ? colors.positive : colors.negative;
}
/**
* Convert CSS variable to computed color value
* Used for chart export since html-to-image can't render CSS variables
*/
export function cssVarToColor(cssVar: string): string {
if (typeof window === 'undefined') return cssVar;
// If it's already a color value, return as-is
if (!cssVar.startsWith('var(')) return cssVar;
// Extract variable name from var(--name)
const varName = cssVar.match(/var\((--[^)]+)\)/)?.[1];
if (!varName) return cssVar;
// Get computed color from CSS variable
const computedColor = getComputedStyle(document.documentElement)
.getPropertyValue(varName)
.trim();
return computedColor || cssVar;
}
/**
* Convert entire color palette to computed colors for export
*/
export function getComputedColors(palette: Partial<ChartColorPalette>): Partial<ChartColorPalette> {
const computed: Partial<ChartColorPalette> = {};
for (const [key, value] of Object.entries(palette)) {
if (value) {
computed[key as keyof ChartColorPalette] = cssVarToColor(value);
}
}
return computed;
}

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import { subWeeks, subMonths, subYears } from 'date-fns';
import type { TimeRange, ChartDataPoint } from '@/lib/types';
/**
* Filter chart data by time range
*/
export function filterByTimeRange<T extends ChartDataPoint>(
data: T[],
range: TimeRange
): T[] {
if (data.length === 0) return data;
const now = new Date();
const cutoffDate = {
'1W': subWeeks(now, 1),
'1M': subMonths(now, 1),
'3M': subMonths(now, 3),
'1Y': subYears(now, 1),
'3Y': subYears(now, 3),
'5Y': subYears(now, 5),
'10Y': subYears(now, 10),
'20Y': subYears(now, 20)
}[range];
return data.filter(point => new Date(point.date) >= cutoffDate);
}
/**
* Check if data point has OHLCV fields
*/
export function isOHLCVData(data: ChartDataPoint): data is {
date: string;
open: number;
high: number;
low: number;
close: number;
volume: number;
} {
return 'open' in data && 'high' in data && 'low' in data && 'close' in data && 'volume' in data;
}
/**
* Check if data point has simple price field
*/
export function isPriceData(data: ChartDataPoint): data is { date: string; price: number } {
return 'price' in data;
}
/**
* Normalize data to ensure consistent structure
* Converts price data to OHLCV-like structure for candlestick charts
*/
export function normalizeChartData<T extends ChartDataPoint>(data: T[]): T[] {
if (!data || data.length === 0) return [];
// Sort by date ascending
return [...data].sort((a, b) =>
new Date(a.date).getTime() - new Date(b.date).getTime()
);
}
/**
* Sample data for performance with large datasets
* Keeps every Nth point when dataset is too large
*/
export function sampleData<T extends ChartDataPoint>(
data: T[],
maxPoints: number = 1000
): T[] {
if (data.length <= maxPoints) return data;
const samplingRate = Math.ceil(data.length / maxPoints);
const sampled: T[] = [];
for (let i = 0; i < data.length; i += samplingRate) {
sampled.push(data[i]);
}
// Always include the last point
if (sampled[sampled.length - 1] !== data[data.length - 1]) {
sampled.push(data[data.length - 1]);
}
return sampled;
}
/**
* Calculate min/max values for Y-axis domain
*/
export function calculateYAxisDomain<T extends ChartDataPoint>(
data: T[],
padding: number = 0.1
): [number, number] {
if (data.length === 0) return [0, 100];
let min = Infinity;
let max = -Infinity;
data.forEach(point => {
if (isOHLCVData(point)) {
min = Math.min(min, point.low);
max = Math.max(max, point.high);
} else if (isPriceData(point)) {
min = Math.min(min, point.price);
max = Math.max(max, point.price);
}
});
// Add padding
const range = max - min;
const paddedMin = min - (range * padding);
const paddedMax = max + (range * padding);
return [paddedMin, paddedMax];
}
/**
* Calculate volume max for volume indicator Y-axis
*/
export function calculateVolumeMax<T extends ChartDataPoint>(data: T[]): number {
if (data.length === 0 || !isOHLCVData(data[0])) return 0;
return Math.max(...data.map(d => (isOHLCVData(d) ? d.volume : 0)));
}
/**
* Merge multiple data series by date for combination charts
*/
export function mergeDataSeries<T extends ChartDataPoint>(
seriesArray: Array<{ id: string; data: T[] }>
): Array<T & Record<string, number>> {
if (!seriesArray || seriesArray.length === 0) return [];
// Create map indexed by date
const dateMap = new Map<string, T & Record<string, number>>();
seriesArray.forEach(series => {
series.data.forEach(point => {
const date = point.date;
const existing = dateMap.get(date) || { date } as T & Record<string, number>;
// Add value for this series
if (isOHLCVData(point)) {
existing[series.id] = point.close;
} else if (isPriceData(point)) {
existing[series.id] = point.price;
}
dateMap.set(date, existing);
});
});
// Convert to array and sort by date
return Array.from(dateMap.values()).sort((a, b) =>
new Date(a.date).getTime() - new Date(b.date).getTime()
);
}