384 lines
14 KiB
JavaScript
384 lines
14 KiB
JavaScript
'use client';
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import { useEffect, useState, useRef } from 'react';
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import { motion } from 'framer-motion';
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import dayjs from 'dayjs';
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import utc from 'dayjs/plugin/utc';
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import timezone from 'dayjs/plugin/timezone';
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import { DatePicker, NumericInput } from './Common';
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import { isNumber } from 'lodash';
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import { CloseIcon } from './Icons';
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dayjs.extend(utc);
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dayjs.extend(timezone);
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const DEFAULT_TZ = 'Asia/Shanghai';
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const getBrowserTimeZone = () => {
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if (typeof Intl !== 'undefined' && Intl.DateTimeFormat) {
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const tz = Intl.DateTimeFormat().resolvedOptions().timeZone;
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return tz || DEFAULT_TZ;
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}
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return DEFAULT_TZ;
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};
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const TZ = getBrowserTimeZone();
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dayjs.tz.setDefault(TZ);
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const nowInTz = () => dayjs().tz(TZ);
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const formatDate = (input) => dayjs.tz(input, TZ).format('YYYY-MM-DD');
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const CYCLES = [
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{ value: 'daily', label: '每日' },
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{ value: 'weekly', label: '每周' },
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{ value: 'biweekly', label: '每两周' },
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{ value: 'monthly', label: '每月' }
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];
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const WEEKDAY_OPTIONS = [
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{ value: 1, label: '周一' },
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{ value: 2, label: '周二' },
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{ value: 3, label: '周三' },
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{ value: 4, label: '周四' },
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{ value: 5, label: '周五' }
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];
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const computeFirstDate = (cycle, weeklyDay, monthlyDay) => {
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const today = nowInTz().startOf('day');
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if (cycle === 'weekly' || cycle === 'biweekly') {
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const todayDay = today.day(); // 0-6, 1=周一
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let target = isNumber(weeklyDay) ? weeklyDay : todayDay;
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if (target < 1 || target > 5) {
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// 如果当前是周末且未设定，默认周一
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target = 1;
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}
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let candidate = today;
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for (let i = 0; i < 14; i += 1) {
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if (candidate.day() === target && !candidate.isBefore(today)) {
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break;
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}
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candidate = candidate.add(1, 'day');
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}
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return candidate.format('YYYY-MM-DD');
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}
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if (cycle === 'monthly') {
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const baseDay = today.date();
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const day =
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isNumber(monthlyDay) && monthlyDay >= 1 && monthlyDay <= 28
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? monthlyDay
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: Math.min(28, baseDay);
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let candidate = today.date(day);
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if (candidate.isBefore(today)) {
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candidate = today.add(1, 'month').date(day);
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}
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return candidate.format('YYYY-MM-DD');
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}
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return formatDate(today);
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};
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export default function DcaModal({ fund, plan, onClose, onConfirm }) {
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const [amount, setAmount] = useState('');
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const [feeRate, setFeeRate] = useState('0');
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const [cycle, setCycle] = useState('monthly');
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const [enabled, setEnabled] = useState(true);
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const [weeklyDay, setWeeklyDay] = useState(() => {
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const d = nowInTz().day();
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return d >= 1 && d <= 5 ? d : 1;
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});
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const [monthlyDay, setMonthlyDay] = useState(() => {
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const d = nowInTz().date();
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return d >= 1 && d <= 28 ? d : 1;
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});
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const [firstDate, setFirstDate] = useState(() => computeFirstDate('monthly', null, null));
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const monthlyDayRef = useRef(null);
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useEffect(() => {
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if (!plan) {
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// 新建定投时，以当前默认 weeklyDay/monthlyDay 计算一次首扣日期
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setFirstDate(computeFirstDate('monthly', weeklyDay, monthlyDay));
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return;
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}
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if (plan.amount != null) {
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setAmount(String(plan.amount));
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}
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if (plan.feeRate != null) {
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setFeeRate(String(plan.feeRate));
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}
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if (typeof plan.enabled === 'boolean') {
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setEnabled(plan.enabled);
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}
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if (isNumber(plan.weeklyDay)) {
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setWeeklyDay(plan.weeklyDay);
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}
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if (isNumber(plan.monthlyDay)) {
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setMonthlyDay(plan.monthlyDay);
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}
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if (plan.cycle && CYCLES.some(c => c.value === plan.cycle)) {
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setCycle(plan.cycle);
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setFirstDate(plan.firstDate || computeFirstDate(plan.cycle, plan.weeklyDay, plan.monthlyDay));
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} else {
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setFirstDate(plan.firstDate || computeFirstDate('monthly', null, null));
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}
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}, [plan]);
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useEffect(() => {
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setFirstDate(computeFirstDate(cycle, weeklyDay, monthlyDay));
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}, [cycle, weeklyDay, monthlyDay]);
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useEffect(() => {
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if (cycle !== 'monthly') return;
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if (monthlyDayRef.current) {
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try {
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monthlyDayRef.current.scrollIntoView({ block: 'nearest', inline: 'nearest' });
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} catch {}
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}
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}, [cycle, monthlyDay]);
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const handleSubmit = (e) => {
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e.preventDefault();
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const amt = parseFloat(amount);
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const rate = parseFloat(feeRate);
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if (!fund?.code) return;
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if (!amt || amt <= 0) return;
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if (isNaN(rate) || rate < 0) return;
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if (!cycle) return;
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if ((cycle === 'weekly' || cycle === 'biweekly') && (weeklyDay < 1 || weeklyDay > 5)) return;
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if (cycle === 'monthly' && (monthlyDay < 1 || monthlyDay > 28)) return;
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onConfirm?.({
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type: 'dca',
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fundCode: fund.code,
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fundName: fund.name,
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amount: amt,
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feeRate: rate,
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cycle,
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firstDate,
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weeklyDay: cycle === 'weekly' || cycle === 'biweekly' ? weeklyDay : null,
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monthlyDay: cycle === 'monthly' ? monthlyDay : null,
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enabled
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});
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};
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const isValid = () => {
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const amt = parseFloat(amount);
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const rate = parseFloat(feeRate);
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if (!fund?.code || !cycle || !firstDate) return false;
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if (!(amt > 0) || isNaN(rate) || rate < 0) return false;
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if ((cycle === 'weekly' || cycle === 'biweekly') && (weeklyDay < 1 || weeklyDay > 5)) return false;
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if (cycle === 'monthly' && (monthlyDay < 1 || monthlyDay > 28)) return false;
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return true;
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};
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return (
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<motion.div
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className="modal-overlay"
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role="dialog"
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aria-modal="true"
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aria-label="定投设置"
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onClick={onClose}
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initial={{ opacity: 0 }}
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animate={{ opacity: 1 }}
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exit={{ opacity: 0 }}
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>
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<motion.div
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initial={{ opacity: 0, scale: 0.95, y: 20 }}
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animate={{ opacity: 1, scale: 1, y: 0 }}
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exit={{ opacity: 0, scale: 0.95, y: 20 }}
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className="glass card modal dca-modal"
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onClick={(e) => e.stopPropagation()}
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style={{
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maxWidth: '420px',
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maxHeight: '90vh',
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display: 'flex',
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flexDirection: 'column',
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}}
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>
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<div
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className="scrollbar-y-styled"
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style={{
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overflowY: 'auto',
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paddingRight: 4,
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flex: 1,
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}}
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>
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<div className="title" style={{ marginBottom: 20, justifyContent: 'space-between' }}>
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<div style={{ display: 'flex', alignItems: 'center', gap: 10 }}>
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<span style={{ fontSize: '20px' }}>🔁</span>
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<span>定投</span>
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</div>
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<button className="icon-button" onClick={onClose} style={{ border: 'none', background: 'transparent' }}>
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<CloseIcon width="20" height="20" />
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</button>
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</div>
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<div style={{ marginBottom: 16 }}>
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<div className="fund-name" style={{ fontWeight: 600, fontSize: '16px', marginBottom: 4 }}>{fund?.name}</div>
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<div className="muted" style={{ fontSize: '12px' }}>#{fund?.code}</div>
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</div>
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<form onSubmit={handleSubmit}>
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<div className="form-group" style={{ marginBottom: 8 }}>
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<label className="muted" style={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between', fontSize: '14px' }}>
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<span>是否启用定投</span>
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<button
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type="button"
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onClick={() => setEnabled(v => !v)}
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style={{
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border: 'none',
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background: 'transparent',
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cursor: 'pointer',
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display: 'inline-flex',
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alignItems: 'center',
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gap: 6
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}}
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>
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<span className={`dca-toggle-track ${enabled ? 'enabled' : ''}`}>
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<span className="dca-toggle-thumb" style={{ left: enabled ? 16 : 2 }} />
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</span>
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<span style={{ fontSize: 12, color: enabled ? 'var(--primary)' : 'var(--muted)' }}>
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{enabled ? '已启用' : '未启用'}
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</span>
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</button>
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</label>
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</div>
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<div className="form-group" style={{ marginBottom: 16 }}>
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<label className="muted" style={{ display: 'block', marginBottom: 8, fontSize: '14px' }}>
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定投金额 (¥) <span style={{ color: 'var(--danger)' }}>*</span>
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</label>
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<div style={{ border: (!amount || parseFloat(amount) <= 0) ? '1px solid var(--danger)' : '1px solid var(--border)', borderRadius: 12 }}>
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<NumericInput
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value={amount}
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onChange={setAmount}
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step={100}
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min={0}
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placeholder="请输入每次定投金额"
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/>
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</div>
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</div>
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<div className="row" style={{ gap: 12, marginBottom: 16 }}>
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<div className="form-group" style={{ flex: 1 }}>
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<label className="muted" style={{ display: 'block', marginBottom: 8, fontSize: '14px' }}>
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买入费率 (%) <span style={{ color: 'var(--danger)' }}>*</span>
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</label>
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<div style={{ border: feeRate === '' ? '1px solid var(--danger)' : '1px solid var(--border)', borderRadius: 12 }}>
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<NumericInput
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value={feeRate}
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onChange={setFeeRate}
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step={0.01}
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min={0}
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placeholder="0.12"
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/>
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</div>
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</div>
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<div className="form-group" style={{ flex: 1 }}>
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<label className="muted" style={{ display: 'block', marginBottom: 8, fontSize: '14px' }}>
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定投周期 <span style={{ color: 'var(--danger)' }}>*</span>
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</label>
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<div className="dca-option-group row" style={{ gap: 4 }}>
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{CYCLES.map((opt) => (
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<button
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key={opt.value}
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type="button"
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className={`dca-option-btn ${cycle === opt.value ? 'active' : ''}`}
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onClick={() => setCycle(opt.value)}
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>
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{opt.label}
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</button>
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))}
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</div>
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</div>
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</div>
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{(cycle === 'weekly' || cycle === 'biweekly') && (
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<div className="form-group" style={{ marginBottom: 16 }}>
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<label className="muted" style={{ display: 'block', marginBottom: 8, fontSize: '14px' }}>
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扣款星期 <span style={{ color: 'var(--danger)' }}>*</span>
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</label>
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<div className="dca-option-group row" style={{ gap: 4 }}>
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{WEEKDAY_OPTIONS.map((opt) => (
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<button
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key={opt.value}
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type="button"
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className={`dca-option-btn dca-weekday-btn ${weeklyDay === opt.value ? 'active' : ''}`}
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onClick={() => setWeeklyDay(opt.value)}
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>
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{opt.label}
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</button>
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))}
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</div>
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</div>
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)}
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{cycle === 'monthly' && (
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<div className="form-group" style={{ marginBottom: 16 }}>
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<label className="muted" style={{ display: 'block', marginBottom: 8, fontSize: '14px' }}>
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扣款日 <span style={{ color: 'var(--danger)' }}>*</span>
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</label>
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<div className="dca-monthly-day-group scrollbar-y-styled">
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{Array.from({ length: 28 }).map((_, idx) => {
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const day = idx + 1;
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const active = monthlyDay === day;
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return (
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<button
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key={day}
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ref={active ? monthlyDayRef : null}
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type="button"
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className={`dca-option-btn dca-monthly-btn ${active ? 'active' : ''}`}
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onClick={() => setMonthlyDay(day)}
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>
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{day}日
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</button>
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);
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})}
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</div>
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</div>
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)}
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<div className="form-group" style={{ marginBottom: 16 }}>
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<label className="muted" style={{ display: 'block', marginBottom: 4, fontSize: '14px' }}>
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首次扣款日期
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</label>
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<div className="dca-first-date-display">
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{firstDate}
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</div>
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<div className="muted" style={{ marginTop: 4, fontSize: 12 }}>
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* 基于当前日期和所选周期/扣款日自动计算：每日=当天；每周/每两周=从今天起最近的所选工作日；每月=从今天起最近的所选日期（1-28日）。
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</div>
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</div>
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</form>
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</div>
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<div
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style={{
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paddingTop: 12,
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marginTop: 4,
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}}
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>
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<div className="row" style={{ gap: 12 }}>
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<button
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type="button"
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className="button secondary dca-cancel-btn"
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onClick={onClose}
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style={{ flex: 1 }}
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>
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取消
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</button>
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<button
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type="button"
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className="button"
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disabled={!isValid()}
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onClick={handleSubmit}
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style={{ flex: 1, opacity: isValid() ? 1 : 0.6 }}
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>
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保存定投
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</button>
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</div>
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</div>
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</motion.div>
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</motion.div>
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);
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}
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