595 lines
19 KiB
JavaScript
595 lines
19 KiB
JavaScript
'use client';
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import { useState, useEffect, useMemo, useRef } from 'react';
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import { fetchFundHistory } from '../api/fund';
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import { motion, AnimatePresence } from 'framer-motion';
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import { ChevronIcon } from './Icons';
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import {
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Chart as ChartJS,
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CategoryScale,
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LinearScale,
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PointElement,
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LineElement,
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Title,
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Tooltip,
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Legend,
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Filler
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} from 'chart.js';
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import { Line } from 'react-chartjs-2';
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import { cachedRequest } from '../lib/cacheRequest';
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import FundHistoryNetValue from './FundHistoryNetValue';
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ChartJS.register(
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CategoryScale,
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LinearScale,
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PointElement,
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LineElement,
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Title,
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Tooltip,
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Legend,
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Filler
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);
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const CHART_COLORS = {
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dark: {
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danger: '#f87171',
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success: '#34d399',
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primary: '#22d3ee',
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muted: '#9ca3af',
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border: '#1f2937',
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text: '#e5e7eb',
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crosshairText: '#0f172a',
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},
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light: {
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danger: '#dc2626',
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success: '#059669',
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primary: '#0891b2',
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muted: '#475569',
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border: '#e2e8f0',
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text: '#0f172a',
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crosshairText: '#ffffff',
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}
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};
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function getChartThemeColors(theme) {
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return CHART_COLORS[theme] || CHART_COLORS.dark;
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}
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export default function FundTrendChart({ code, isExpanded, onToggleExpand, transactions = [], theme = 'dark', hideHeader = false }) {
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const [range, setRange] = useState('1m');
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const [data, setData] = useState([]);
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const [loading, setLoading] = useState(false);
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const [error, setError] = useState(null);
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const chartRef = useRef(null);
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const hoverTimeoutRef = useRef(null);
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const chartColors = useMemo(() => getChartThemeColors(theme), [theme]);
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useEffect(() => {
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// If collapsed, don't fetch data unless we have no data yet
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if (!isExpanded && data.length > 0) return;
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let active = true;
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setLoading(true);
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setError(null);
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const cacheKey = `fund_history_${code}_${range}`;
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if (isExpanded) {
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cachedRequest(
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() => fetchFundHistory(code, range),
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cacheKey,
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{ cacheTime: 10 * 60 * 1000 }
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)
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.then(res => {
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if (active) {
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setData(res || []);
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setLoading(false);
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}
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})
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.catch(err => {
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if (active) {
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setError(err);
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setLoading(false);
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}
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});
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}
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return () => { active = false; };
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}, [code, range, isExpanded, data.length]);
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const ranges = [
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{ label: '近1月', value: '1m' },
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{ label: '近3月', value: '3m' },
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{ label: '近6月', value: '6m' },
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{ label: '近1年', value: '1y' },
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{ label: '近3年', value: '3y' },
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{ label: '成立来', value: 'all' }
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];
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const change = useMemo(() => {
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if (!data.length) return 0;
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const first = data[0].value;
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const last = data[data.length - 1].value;
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return ((last - first) / first) * 100;
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}, [data]);
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// Red for up, Green for down (CN market style)，随主题使用 CSS 变量
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const upColor = chartColors.danger;
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const downColor = chartColors.success;
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const lineColor = change >= 0 ? upColor : downColor;
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const primaryColor = chartColors.primary;
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const chartData = useMemo(() => {
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// Calculate percentage change based on the first data point
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const firstValue = data.length > 0 ? data[0].value : 1;
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const percentageData = data.map(d => ((d.value - firstValue) / firstValue) * 100);
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// Map transaction dates to chart indices
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const dateToIndex = new Map(data.map((d, i) => [d.date, i]));
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const buyPoints = new Array(data.length).fill(null);
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const sellPoints = new Array(data.length).fill(null);
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transactions.forEach(t => {
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// Simple date matching (assuming formats match)
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// If formats differ, dayjs might be needed
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const idx = dateToIndex.get(t.date);
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if (idx !== undefined) {
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const val = percentageData[idx];
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if (t.type === 'buy') {
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buyPoints[idx] = val;
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} else {
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sellPoints[idx] = val;
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}
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}
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});
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return {
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labels: data.map(d => d.date),
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datasets: [
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{
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type: 'line',
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label: '涨跌幅',
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data: percentageData,
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borderColor: lineColor,
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backgroundColor: (context) => {
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const ctx = context.chart.ctx;
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const gradient = ctx.createLinearGradient(0, 0, 0, 200);
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gradient.addColorStop(0, `${lineColor}33`); // 20% opacity
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gradient.addColorStop(1, `${lineColor}00`); // 0% opacity
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return gradient;
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},
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borderWidth: 2,
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pointRadius: 0,
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pointHoverRadius: 4,
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fill: true,
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tension: 0.2,
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order: 2
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},
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{
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type: 'line', // Use line type with showLine: false to simulate scatter on Category scale
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label: '买入',
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data: buyPoints,
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borderColor: '#ffffff',
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borderWidth: 1,
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backgroundColor: primaryColor,
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pointStyle: 'circle',
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pointRadius: 2.5,
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pointHoverRadius: 4,
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showLine: false,
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order: 1
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},
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{
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type: 'line',
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label: '卖出',
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data: sellPoints,
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borderColor: '#ffffff',
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borderWidth: 1,
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backgroundColor: upColor,
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pointStyle: 'circle',
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pointRadius: 2.5,
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pointHoverRadius: 4,
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showLine: false,
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order: 1
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}
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]
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};
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}, [data, transactions, lineColor, primaryColor, upColor]);
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const options = useMemo(() => {
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const colors = getChartThemeColors(theme);
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return {
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responsive: true,
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maintainAspectRatio: false,
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plugins: {
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legend: {
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display: false
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},
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tooltip: {
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enabled: false, // 禁用默认 Tooltip，使用自定义绘制
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mode: 'index',
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intersect: false,
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external: () => {} // 禁用外部 HTML tooltip
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}
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},
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scales: {
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x: {
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display: true,
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grid: {
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display: false,
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drawBorder: false
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},
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ticks: {
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color: colors.muted,
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font: { size: 10 },
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maxTicksLimit: 4,
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maxRotation: 0
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},
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border: { display: false }
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},
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y: {
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display: true,
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position: 'left',
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grid: {
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color: colors.border,
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drawBorder: false,
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tickLength: 0
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},
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ticks: {
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color: colors.muted,
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font: { size: 10 },
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count: 5,
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callback: (value) => `${value.toFixed(2)}%`
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},
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border: { display: false }
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}
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},
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interaction: {
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mode: 'index',
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intersect: false,
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},
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onHover: (event, chartElement, chart) => {
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const target = event?.native?.target;
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const currentChart = chart || chartRef.current;
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if (!currentChart) return;
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const tooltipActive = currentChart.tooltip?._active ?? [];
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const activeElements = currentChart.getActiveElements
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? currentChart.getActiveElements()
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: [];
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const hasActive =
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(chartElement && chartElement.length > 0) ||
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(tooltipActive && tooltipActive.length > 0) ||
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(activeElements && activeElements.length > 0);
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if (target) {
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target.style.cursor = hasActive ? 'crosshair' : 'default';
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}
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// 仅用于桌面端 hover 改变光标，不在这里做 2 秒清除，避免移动端 hover 事件不稳定
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},
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onClick: () => {}
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};
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}, [theme]);
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useEffect(() => {
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return () => {
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if (hoverTimeoutRef.current) {
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clearTimeout(hoverTimeoutRef.current);
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}
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};
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}, []);
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const plugins = useMemo(() => {
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const colors = getChartThemeColors(theme);
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return [{
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id: 'crosshair',
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afterEvent: (chart, args) => {
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const { event, replay } = args || {};
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if (!event || replay) return; // 忽略动画重放
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const type = event.type;
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if (type === 'mousemove' || type === 'click') {
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if (hoverTimeoutRef.current) {
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clearTimeout(hoverTimeoutRef.current);
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hoverTimeoutRef.current = null;
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}
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hoverTimeoutRef.current = setTimeout(() => {
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if (!chart) return;
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chart.setActiveElements([]);
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if (chart.tooltip) {
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chart.tooltip.setActiveElements([], { x: 0, y: 0 });
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}
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chart.update();
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}, 2000);
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}
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},
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afterDraw: (chart) => {
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const ctx = chart.ctx;
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const datasets = chart.data.datasets;
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const primaryColor = colors.primary;
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// 绘制圆角矩形（兼容无 roundRect 的环境）
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const drawRoundRect = (left, top, w, h, r) => {
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const rad = Math.min(r, w / 2, h / 2);
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ctx.beginPath();
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ctx.moveTo(left + rad, top);
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ctx.lineTo(left + w - rad, top);
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ctx.quadraticCurveTo(left + w, top, left + w, top + rad);
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ctx.lineTo(left + w, top + h - rad);
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ctx.quadraticCurveTo(left + w, top + h, left + w - rad, top + h);
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ctx.lineTo(left + rad, top + h);
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ctx.quadraticCurveTo(left, top + h, left, top + h - rad);
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ctx.lineTo(left, top + rad);
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ctx.quadraticCurveTo(left, top, left + rad, top);
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ctx.closePath();
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};
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const drawPointLabel = (datasetIndex, index, text, bgColor, textColor = '#ffffff', yOffset = 0) => {
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const meta = chart.getDatasetMeta(datasetIndex);
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if (!meta.data[index]) return;
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const element = meta.data[index];
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if (element.skip) return;
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const x = element.x;
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const y = element.y + yOffset;
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const paddingH = 10;
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const paddingV = 6;
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const radius = 8;
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ctx.save();
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ctx.font = 'bold 11px sans-serif';
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const textW = ctx.measureText(text).width;
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const w = textW + paddingH * 2;
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const h = 18;
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// 计算原始 left，并对左右边界做收缩，避免在最右/最左侧被裁剪
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const chartLeft = chart.scales.x.left;
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const chartRight = chart.scales.x.right;
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let left = x - w / 2;
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if (left < chartLeft) left = chartLeft;
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if (left + w > chartRight) left = chartRight - w;
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const centerX = left + w / 2;
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const top = y - 24;
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drawRoundRect(left, top, w, h, radius);
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ctx.globalAlpha = 0.7;
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ctx.fillStyle = bgColor;
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ctx.fill();
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ctx.globalAlpha = 0.7;
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ctx.fillStyle = textColor;
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ctx.textAlign = 'center';
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ctx.textBaseline = 'middle';
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ctx.fillText(text, centerX, top + h / 2);
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ctx.restore();
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};
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// Resolve active elements (hover/focus) first — used to decide whether to show default labels
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let activeElements = [];
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if (chart.tooltip?._active?.length) {
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activeElements = chart.tooltip._active;
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} else {
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activeElements = chart.getActiveElements();
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}
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// 1. Draw default labels for first buy and sell points only when NOT focused/hovering
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// Index 1 is Buy, Index 2 is Sell
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if (!activeElements?.length && datasets[1] && datasets[1].data) {
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const firstBuyIndex = datasets[1].data.findIndex(v => v !== null && v !== undefined);
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if (firstBuyIndex !== -1) {
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let sellIndex = -1;
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if (datasets[2] && datasets[2].data) {
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sellIndex = datasets[2].data.findIndex(v => v !== null && v !== undefined);
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}
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const isCollision = (firstBuyIndex === sellIndex);
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drawPointLabel(1, firstBuyIndex, '买入', primaryColor, '#ffffff', isCollision ? -20 : 0);
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}
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}
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if (!activeElements?.length && datasets[2] && datasets[2].data) {
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const firstSellIndex = datasets[2].data.findIndex(v => v !== null && v !== undefined);
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if (firstSellIndex !== -1) {
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drawPointLabel(2, firstSellIndex, '卖出', '#f87171');
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}
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}
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// 2. Handle active elements (hover crosshair)
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if (activeElements && activeElements.length) {
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const activePoint = activeElements[0];
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const x = activePoint.element.x;
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const y = activePoint.element.y;
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const topY = chart.scales.y.top;
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const bottomY = chart.scales.y.bottom;
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const leftX = chart.scales.x.left;
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const rightX = chart.scales.x.right;
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ctx.save();
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ctx.beginPath();
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ctx.setLineDash([3, 3]);
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ctx.lineWidth = 1;
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ctx.strokeStyle = colors.muted;
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// Draw vertical line
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ctx.moveTo(x, topY);
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ctx.lineTo(x, bottomY);
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// Draw horizontal line (based on first point - usually the main line)
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ctx.moveTo(leftX, y);
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ctx.lineTo(rightX, y);
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ctx.stroke();
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// Draw labels
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ctx.font = '10px sans-serif';
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ctx.textAlign = 'center';
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ctx.textBaseline = 'middle';
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// Draw Axis Labels based on the first point (main line)
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const datasetIndex = activePoint.datasetIndex;
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const index = activePoint.index;
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const labels = chart.data.labels;
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if (labels && datasets && datasets[datasetIndex] && datasets[datasetIndex].data) {
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const dateStr = labels[index];
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const value = datasets[datasetIndex].data[index];
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if (dateStr !== undefined && value !== undefined) {
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// X axis label (date) with boundary clamping
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const textWidth = ctx.measureText(dateStr).width + 8;
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const chartLeft = chart.scales.x.left;
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const chartRight = chart.scales.x.right;
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let labelLeft = x - textWidth / 2;
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if (labelLeft < chartLeft) labelLeft = chartLeft;
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if (labelLeft + textWidth > chartRight) labelLeft = chartRight - textWidth;
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const labelCenterX = labelLeft + textWidth / 2;
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ctx.fillStyle = primaryColor;
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ctx.fillRect(labelLeft, bottomY, textWidth, 16);
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ctx.fillStyle = colors.crosshairText;
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ctx.fillText(dateStr, labelCenterX, bottomY + 8);
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// Y axis label (value)
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const valueStr = (typeof value === 'number' ? value.toFixed(2) : value) + '%';
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const valWidth = ctx.measureText(valueStr).width + 8;
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ctx.fillStyle = primaryColor;
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ctx.fillRect(leftX, y - 8, valWidth, 16);
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ctx.fillStyle = colors.crosshairText;
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ctx.textAlign = 'center';
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ctx.fillText(valueStr, leftX + valWidth / 2, y);
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}
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}
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// Check for collision between Buy (1) and Sell (2) in active elements
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const activeBuy = activeElements.find(e => e.datasetIndex === 1);
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const activeSell = activeElements.find(e => e.datasetIndex === 2);
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const isCollision = activeBuy && activeSell && activeBuy.index === activeSell.index;
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// Iterate through all active points to find transaction points and draw their labels
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activeElements.forEach(element => {
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const dsIndex = element.datasetIndex;
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// Only for transaction datasets (index > 0)
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if (dsIndex > 0 && datasets[dsIndex]) {
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const label = datasets[dsIndex].label;
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// Determine background color based on dataset index
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// 1 = Buy (主题色), 2 = Sell (与折线图红色一致)
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const bgColor = dsIndex === 1 ? primaryColor : colors.danger;
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// If collision, offset Buy label upwards
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let yOffset = 0;
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if (isCollision && dsIndex === 1) {
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yOffset = -20;
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}
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drawPointLabel(dsIndex, element.index, label, bgColor, '#ffffff', yOffset);
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}
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});
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ctx.restore();
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}
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}
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}];
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}, [theme]); // theme 变化时重算以应用亮色/暗色坐标轴与 crosshair
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const chartBlock = (
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<>
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<div style={{ position: 'relative', height: 180, width: '100%', touchAction: 'pan-y' }}>
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{loading && (
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<div className="chart-overlay" style={{ backdropFilter: 'blur(2px)' }}>
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<span className="muted" style={{ fontSize: '12px' }}>加载中...</span>
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</div>
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)}
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{!loading && data.length === 0 && (
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<div className="chart-overlay">
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<span className="muted" style={{ fontSize: '12px' }}>暂无数据</span>
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</div>
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)}
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{data.length > 0 && (
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<Line ref={chartRef} data={chartData} options={options} plugins={plugins} />
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)}
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</div>
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<div className="trend-range-bar">
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{ranges.map(r => (
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<button
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key={r.value}
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type="button"
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className={`trend-range-btn ${range === r.value ? 'active' : ''}`}
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onClick={(e) => { e.stopPropagation(); setRange(r.value); }}
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>
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{r.label}
|
||
</button>
|
||
))}
|
||
</div>
|
||
|
||
<FundHistoryNetValue code={code} range={range} theme={theme} />
|
||
</>
|
||
);
|
||
|
||
return (
|
||
<div style={{ marginTop: hideHeader ? 0 : 16 }} onClick={(e) => e.stopPropagation()}>
|
||
{!hideHeader && (
|
||
<div
|
||
style={{ marginBottom: 8, cursor: 'pointer', userSelect: 'none' }}
|
||
className="title"
|
||
onClick={onToggleExpand}
|
||
>
|
||
<div className="row" style={{ width: '100%', flex: 1 }}>
|
||
<div style={{ display: 'flex', alignItems: 'center', gap: 6 }}>
|
||
<span>业绩走势</span>
|
||
<ChevronIcon
|
||
width="16"
|
||
height="16"
|
||
className="muted"
|
||
style={{
|
||
transform: !isExpanded ? 'rotate(-90deg)' : 'rotate(0deg)',
|
||
transition: 'transform 0.2s ease'
|
||
}}
|
||
/>
|
||
</div>
|
||
{data.length > 0 && (
|
||
<div style={{ display: 'flex', alignItems: 'center', gap: 8 }}>
|
||
<span className="muted">{ranges.find(r => r.value === range)?.label}涨跌幅</span>
|
||
<span style={{ color: lineColor, fontWeight: 600 }}>
|
||
{change > 0 ? '+' : ''}{change.toFixed(2)}%
|
||
</span>
|
||
</div>
|
||
)}
|
||
</div>
|
||
</div>
|
||
)}
|
||
|
||
{hideHeader && data.length > 0 && (
|
||
<div className="row" style={{ marginBottom: 8, justifyContent: 'flex-end' }}>
|
||
<div style={{ display: 'flex', alignItems: 'center', gap: 8 }}>
|
||
<span className="muted">{ranges.find(r => r.value === range)?.label}涨跌幅</span>
|
||
<span style={{ color: lineColor, fontWeight: 600 }}>
|
||
{change > 0 ? '+' : ''}{change.toFixed(2)}%
|
||
</span>
|
||
</div>
|
||
</div>
|
||
)}
|
||
|
||
{hideHeader ? (
|
||
chartBlock
|
||
) : (
|
||
<AnimatePresence>
|
||
{isExpanded && (
|
||
<motion.div
|
||
initial={{ height: 0, opacity: 0 }}
|
||
animate={{ height: 'auto', opacity: 1 }}
|
||
exit={{ height: 0, opacity: 0 }}
|
||
transition={{ duration: 0.3, ease: 'easeInOut' }}
|
||
style={{ overflow: 'hidden' }}
|
||
>
|
||
{chartBlock}
|
||
</motion.div>
|
||
)}
|
||
</AnimatePresence>
|
||
)}
|
||
</div>
|
||
);
|
||
}
|