@coinmeca/ui
Version:
This is a [Next.js](https://nextjs.org/) project bootstrapped with [`create-next-app`](https://github.com/vercel/next.js/tree/canary/packages/create-next-app).
182 lines • 7.64 kB
JSX
"use client";
import { useTheme } from "../../../hooks";
import { sort } from "../../../lib/utils";
import { createChart } from "lightweight-charts";
import { Suspense, memo, useEffect, useMemo, useRef, useState } from "react";
import Style from "./Chart.styled";
export const Histogram = (props) => {
const chartRef = useRef(null);
const up = props?.up || "up";
const down = props?.down || "down";
const { theme: detectedTheme } = useTheme();
const theme = props?.color?.theme
? props?.color?.theme === "light"
? "0,0,0"
: "255,255,255"
: detectedTheme === "light"
? "0,0,0"
: "255,255,255";
const color = useMemo(() => ({
default: props?.color?.default?.includes(",")
? `rgb(${props?.color?.default})`
: props?.color?.default || `rgb(${theme})`,
up: props?.color?.up || "0,192,96",
down: props?.color?.down || "255,0,64",
theme: {
strong: `rgba(${theme}, 0.6)`,
semi: `rgba(${theme}, 0.45)`,
medium: `rgba(${theme}, 0.3)`,
regular: `rgba(${theme}, 0.15)`,
light: `rgba(${theme}, 0.05)`,
},
threshold: props?.color?.threshold || 0,
}), [props?.color, theme]);
const key = {
time: props?.field?.time || "time",
value: props?.field?.value || "value",
};
const [data, setData] = useState([]);
useEffect(() => {
const handleResize = () => {
createChart(chartRef?.current).applyOptions({
width: chartRef?.current?.clientWidth,
height: chartRef?.current?.clientHeight,
});
};
chartRef?.current?.addEventListener("resize", handleResize);
return () => chartRef?.current?.removeEventListener("resize", handleResize);
}, []);
useEffect(() => {
if (props?.data && props?.data?.length > 0) {
const data = sort(props?.data?.map((v) => ({
color: v?.type &&
v?.type !== "" &&
props?.up &&
props?.up !== "" &&
props?.down &&
props?.down !== "" &&
`rgb(${color[(v?.type === up ? "up" : v?.type === down ? "down" : "theme")]})`,
time: v[key.time],
value: parseFloat(v?.[key.value]?.toString() || "0"),
})), key.time, typeof props?.data?.[0]?.[key.time] === "number" ? "number" : "string", true);
let lastColor = color.up; // Initialize with the default color
setData((!props?.up || props?.up !== "") &&
(!props?.down || props?.down !== "") &&
props?.color?.up &&
props?.color?.up !== "" &&
props?.color?.down &&
props?.color?.down !== ""
? data?.map((v, i) => {
const previous = data[i - 1];
if (i === 0)
return {
...v,
color: `rgb(${color.up})`,
};
const change = v.value - previous.value;
const threshold = previous.value * (color.threshold / 100);
const newColor = change === 0
? lastColor
: change > 0
? change > threshold
? color.up
: lastColor
: change < -threshold
? color.down
: lastColor;
lastColor = newColor; // Update lastColor for the next iteration
return {
...v,
color: `rgb(${newColor})`,
};
})
: data);
}
}, [props?.data, color]);
useEffect(() => {
if (chartRef?.current) {
const handleResize = () => {
chart.applyOptions({
width: chartRef?.current?.clientWidth,
height: chartRef?.current?.clientHeight,
});
};
const chart = createChart(chartRef?.current, {
layout: {
background: {
color: "transparent",
},
fontSize: 10,
fontFamily: "'Montserrat', 'Noto Sans KR', sans-serif",
textColor: color.theme.strong,
},
grid: {
vertLines: { color: color.theme.light },
horzLines: { color: color.theme.light },
},
rightPriceScale: {
borderVisible: true,
borderColor: color.theme.regular,
},
timeScale: {
timeVisible: true,
secondsVisible: true,
borderColor: color.theme.regular,
},
trackingMode: {},
crosshair: {
// Change mode from default 'magnet' to 'normal'.
// Allows the crosshair to move freely without snapping to datapoints
mode: 0,
// Vertical crosshair line (showing Date in Label)
vertLine: {
width: 4,
color: color.theme.regular,
// style: LightweightCharts.LineStyle.Solid,
style: 0,
labelBackgroundColor: color.theme.medium,
},
// Horizontal crosshair line (showing Price in Label)
horzLine: {
color: color.theme.semi,
labelBackgroundColor: color.theme.medium,
},
},
width: chartRef?.current?.clientWidth,
height: chartRef?.current?.clientHeight,
});
if (data) {
const series = chart.addHistogramSeries({
// color: (props?.color?.up && props?.color?.down) ? color.up : color.default,
priceFormat: {
type: props?.type || "volume",
},
// set as an overlay by setting a blank priceScaleId
// priceScaleId: "",
// set the positioning of the volume series
});
series.setData(data);
if (props?.unit && props?.unit !== "")
series.applyOptions({
priceFormat: {
type: "custom",
formatter: (price) => (typeof props?.format === "function" ? props?.format(price) : price).toString() + props?.unit,
},
});
}
props?.fit
? chart.timeScale().fitContent()
: chart.timeScale().applyOptions({
barSpacing: 10,
});
return () => {
chart.remove();
};
}
}, [chartRef, data, theme, color, up, down, props?.fit]);
return (<Suspense fallback={props?.fallback || <div>Loading...</div>}>
<Style ref={chartRef} style={props?.style}/>
</Suspense>);
};
export default memo(Histogram);
//# sourceMappingURL=Histogram.jsx.map