78 lines
2.0 KiB
TypeScript
78 lines
2.0 KiB
TypeScript
import { useEffect, useRef } from "react";
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import * as LightweightCharts from "lightweight-charts";
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type ChartTime = string | number;
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interface ChartDataPoint {
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time: ChartTime;
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open: number;
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high: number;
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low: number;
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close: number;
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}
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interface TradingViewChartProps {
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ticker: string;
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data?: ChartDataPoint[];
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timeframe?: string;
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}
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const TIMEFRAME_HEIGHTS: Record<string, number> = {
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"1D": 300,
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"5Min": 250,
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"15Min": 250,
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"1H": 350,
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"1W": 400,
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};
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export default function TradingViewChart({ ticker, data, timeframe = "1D" }: TradingViewChartProps) {
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const containerRef = useRef<HTMLDivElement>(null);
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const height = TIMEFRAME_HEIGHTS[timeframe] ?? 400;
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const isIntraday = ["1Min", "5Min", "15Min", "30Min", "1H"].includes(timeframe);
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useEffect(() => {
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if (!containerRef.current) {
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return;
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}
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const chart = LightweightCharts.createChart(containerRef.current, {
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height,
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autoSize: true,
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});
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// Configure time scale based on timeframe and range
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chart.timeScale().applyOptions({
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timeVisible: isIntraday,
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secondsVisible: timeframe === "1Min",
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});
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const candlestickSeries = chart.addSeries(LightweightCharts.CandlestickSeries, {
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upColor: "#26a69a",
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downColor: "#ef5350",
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borderUpColor: "#26a69a",
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borderDownColor: "#ef5350",
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wickUpColor: "#26a69a",
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wickDownColor: "#ef5350",
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});
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if (data && data.length > 0) {
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try {
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candlestickSeries.setData(data as any);
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// Fit the visible data range
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chart.timeScale().fitContent();
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} catch (err) {
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console.error(`TradingViewChart: error setting data for ${ticker}`, err);
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}
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}
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return () => chart.remove();
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}, [data, ticker, isIntraday, timeframe]);
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return (
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<div className="bg-white rounded-xl shadow-lg p-4">
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<h3 className="text-lg font-bold mb-3">{ticker} Price Chart</h3>
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<div ref={containerRef} className="w-full" />
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</div>
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);
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} |