381 lines
13 KiB
TypeScript
381 lines
13 KiB
TypeScript
import React, { useState, useEffect } from 'react';
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import { Card, Row, Col, InputNumber, message, Typography, Divider, Spin, Button, Table, Space, Tag } from 'antd';
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import { CheckOutlined, HistoryOutlined } from '@ant-design/icons';
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import axios from 'axios';
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import dayjs from 'dayjs';
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const { Text, Title } = Typography;
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const RATE_PAIRS = [
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{ key: 'CNY_LAK', label: '中老汇率', from: 'CNY', to: 'LAK', fromLabel: '人民币', toLabel: '老挝基普' },
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{ key: 'CNY_USD', label: '中美汇率', from: 'CNY', to: 'USD', fromLabel: '人民币', toLabel: '美元' },
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{ key: 'CNY_THB', label: '中泰汇率', from: 'CNY', to: 'THB', fromLabel: '人民币', toLabel: '泰铢' },
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{ key: 'USD_LAK', label: '美老汇率', from: 'USD', to: 'LAK', fromLabel: '美元', toLabel: '老挝基普' },
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{ key: 'THB_LAK', label: '泰老汇率', from: 'THB', to: 'LAK', fromLabel: '泰铢', toLabel: '老挝基普' },
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];
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interface RateItem {
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leftValue: number;
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rightValue: number;
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actualRate: number;
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}
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interface HistoryRate {
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id: number;
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pair_key: string;
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rate: number;
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effective_date: string;
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created_at: string;
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created_by_name?: string;
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}
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const ExchangeRatePage: React.FC = () => {
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const [rates, setRates] = useState<Record<string, RateItem>>({});
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const [initialRates, setInitialRates] = useState<Record<string, number>>({});
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const [loading, setLoading] = useState(true);
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const [saving, setSaving] = useState(false);
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const [isMobile, setIsMobile] = useState(false);
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const [historyRates, setHistoryRates] = useState<HistoryRate[]>([]);
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const [lastUpdateTime, setLastUpdateTime] = useState<string>('');
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useEffect(() => {
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const checkMobile = () => setIsMobile(window.innerWidth <= 768);
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checkMobile();
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window.addEventListener('resize', checkMobile);
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return () => window.removeEventListener('resize', checkMobile);
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}, []);
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useEffect(() => {
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fetchRates();
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fetchHistory();
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}, []);
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const fetchRates = async () => {
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setLoading(true);
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try {
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const res = await axios.get('/api/exchange-rates/latest');
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if (res.data.success) {
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const data = res.data.data;
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const newRates: Record<string, RateItem> = {};
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const newInitialRates: Record<string, number> = {};
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RATE_PAIRS.forEach(pair => {
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const rate = parseFloat(data[pair.key]) || 1;
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newRates[pair.key] = { leftValue: 1, rightValue: rate, actualRate: rate };
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newInitialRates[pair.key] = rate;
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});
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setRates(newRates);
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setInitialRates(newInitialRates);
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if (res.data.updated_at) {
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setLastUpdateTime(res.data.updated_at);
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}
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}
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} catch (error) {
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message.error('获取汇率失败');
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const defaultRates: Record<string, RateItem> = {};
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const defaultInitialRates: Record<string, number> = {};
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RATE_PAIRS.forEach(pair => {
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const defaultRate = pair.key === 'CNY_LAK' ? 3000 : pair.key === 'CNY_USD' ? 0.14 : pair.key === 'CNY_THB' ? 4.5 : pair.key === 'USD_LAK' ? 21000 : 670;
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defaultRates[pair.key] = { leftValue: 1, rightValue: defaultRate, actualRate: defaultRate };
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defaultInitialRates[pair.key] = defaultRate;
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});
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setRates(defaultRates);
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setInitialRates(defaultInitialRates);
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} finally {
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setLoading(false);
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}
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};
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const fetchHistory = async () => {
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try {
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const res = await axios.get('/api/exchange-rates/history?limit=20');
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if (res.data.success) {
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setHistoryRates(res.data.data);
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}
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} catch (error) {
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console.error('获取历史汇率失败:', error);
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}
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};
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// 左侧输入 - 右侧自动变为1，重新计算汇率
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const handleLeftChange = (key: string, value: number | null) => {
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if (value === null || value <= 0) return;
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const pair = RATE_PAIRS.find(p => p.key === key);
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if (!pair) return;
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// 当左侧输入值时，右侧变为1，计算新的汇率
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const newRate = 1 / value;
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setRates(prev => ({
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...prev,
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[key]: {
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leftValue: value,
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rightValue: 1,
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actualRate: newRate
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}
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}));
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};
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// 右侧输入 - 左侧自动变为1，重新计算汇率
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const handleRightChange = (key: string, value: number | null) => {
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if (value === null || value <= 0) return;
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const pair = RATE_PAIRS.find(p => p.key === key);
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if (!pair) return;
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// 当右侧输入值时，左侧变为1，计算新的汇率
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const newRate = value;
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setRates(prev => ({
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...prev,
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[key]: {
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leftValue: 1,
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rightValue: value,
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actualRate: newRate
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}
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}));
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};
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// 计算实际汇率显示
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const getActualRateDisplay = (key: string) => {
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const item = rates[key];
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if (!item) return '1 : 1.00';
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const pair = RATE_PAIRS.find(p => p.key === key);
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const actualRate = item.actualRate;
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// 根据汇率对选择合适的小数位数
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const decimalPlaces = pair?.key === 'CNY_USD' ? 5 : 2;
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return `1 ${pair?.from} = ${actualRate.toFixed(decimalPlaces)} ${pair?.to}`;
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};
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// 确认保存
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const handleConfirm = async () => {
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setSaving(true);
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try {
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const savePromises = RATE_PAIRS.map(pair => {
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const item = rates[pair.key];
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if (!item) return null;
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const actualRate = item.rightValue / item.leftValue;
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const initialRate = initialRates[pair.key];
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// 只保存有变化的汇率
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if (Math.abs(actualRate - initialRate) < 0.0001) {
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return null;
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}
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return axios.post('/api/exchange-rates', {
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pair_key: pair.key,
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rate: actualRate,
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effective_date: dayjs().format('YYYY-MM-DD')
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});
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});
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const validPromises = savePromises.filter(Boolean) as Promise<any>[];
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if (validPromises.length === 0) {
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message.info('没有汇率发生变化');
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setSaving(false);
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return;
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}
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await Promise.all(validPromises);
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message.success('汇率保存成功');
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setLastUpdateTime(dayjs().format('YYYY-MM-DD HH:mm:ss'));
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fetchHistory();
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// 更新初始汇率为当前汇率
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const newInitialRates: Record<string, number> = {};
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RATE_PAIRS.forEach(pair => {
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const item = rates[pair.key];
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if (item) {
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newInitialRates[pair.key] = item.rightValue / item.leftValue;
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}
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});
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setInitialRates(newInitialRates);
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} catch (error) {
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message.error('保存汇率失败');
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} finally {
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setSaving(false);
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}
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};
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// 历史汇率表格列
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const historyColumns = [
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{
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title: '汇率对',
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dataIndex: 'from_currency',
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key: 'from_currency',
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render: (_: string, record: HistoryRate) => {
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const pairKey = `${record.from_currency}_${record.to_currency}`;
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const pair = RATE_PAIRS.find(p => p.key === pairKey);
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return pair?.label || pairKey;
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}
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},
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{
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title: '汇率',
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dataIndex: 'rate',
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key: 'rate',
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render: (rate: number, record: HistoryRate) => {
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const pairKey = `${record.from_currency}_${record.to_currency}`;
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const pair = RATE_PAIRS.find(p => p.key === pairKey);
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return `1 ${record.from_currency} = ${parseFloat(rate).toFixed(pair?.key === 'CNY_USD' ? 4 : 2)} ${record.to_currency}`;
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}
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},
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{
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title: '生效日期',
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dataIndex: 'effective_date',
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key: 'effective_date',
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render: (date: string) => dayjs(date).format('YYYY-MM-DD')
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},
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{
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title: '设置时间',
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dataIndex: 'created_at',
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key: 'created_at',
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render: (time: string) => dayjs(time).format('YYYY-MM-DD HH:mm')
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},
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{
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title: '设置人',
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dataIndex: 'created_by_name',
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key: 'created_by_name',
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render: (name: string) => name || '-'
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}
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];
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if (loading) {
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return <div style={{ display: 'flex', justifyContent: 'center', alignItems: 'center', minHeight: 400 }}><Spin size="large" /></div>;
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}
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return (
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<div style={{ padding: isMobile ? 8 : 24 }}>
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<div style={{ marginBottom: isMobile ? 12 : 24 }}>
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<Title level={2} style={{ marginBottom: 8 }}>汇率管理</Title>
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<Space>
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<Text type="secondary">设置各币种汇率，输入任意一侧自动计算</Text>
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{lastUpdateTime && (
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<Tag color="blue">上次更新: {lastUpdateTime}</Tag>
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)}
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</Space>
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</div>
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<Row gutter={[16, 16]}>
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{RATE_PAIRS.map(pair => {
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const item = rates[pair.key];
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if (!item) return null;
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return (
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<Col xs={24} sm={12} lg={8} key={pair.key}>
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<Card title={pair.label} size="small" style={{ background: '#fafafa' }}>
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<div style={{ display: 'flex', alignItems: 'center', gap: 12, marginBottom: 12 }}>
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<div style={{ flex: 1 }}>
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<div style={{ marginBottom: 4, fontSize: 12, color: '#888' }}>{pair.fromLabel}</div>
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<InputNumber
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style={{
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width: '100%',
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borderColor: '#d9d9d9',
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'&:hover': {
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borderColor: '#1890ff',
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},
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'&:focus': {
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borderColor: '#1890ff',
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boxShadow: '0 0 0 2px rgba(24, 144, 255, 0.2)',
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}
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}}
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value={item.leftValue}
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onChange={(v) => handleLeftChange(pair.key, v)}
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precision={6}
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size="large"
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min={0.000001}
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onFocus={(e) => {
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if (e.target && e.target.select) {
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e.target.select();
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}
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}}
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placeholder={`输入${pair.fromLabel}金额`}
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/>
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</div>
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<div style={{ padding: '20px 8px 0', fontSize: 18, color: '#1890ff', fontWeight: 'bold' }}>=</div>
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<div style={{ flex: 1 }}>
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<div style={{ marginBottom: 4, fontSize: 12, color: '#888' }}>{pair.toLabel}</div>
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<InputNumber
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style={{
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width: '100%',
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borderColor: '#d9d9d9',
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'&:hover': {
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borderColor: '#1890ff',
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},
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'&:focus': {
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borderColor: '#1890ff',
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boxShadow: '0 0 0 2px rgba(24, 144, 255, 0.2)',
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}
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}}
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value={item.rightValue}
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onChange={(v) => handleRightChange(pair.key, v)}
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precision={pair.key === 'CNY_USD' ? 4 : 2}
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size="large"
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min={0.000001}
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onFocus={(e) => {
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if (e.target && e.target.select) {
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e.target.select();
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}
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}}
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placeholder={`输入${pair.toLabel}金额`}
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/>
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</div>
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</div>
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<Divider style={{ margin: '12px 0' }} />
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<div style={{ textAlign: 'center' }}>
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<Text type="secondary" style={{ fontSize: 13 }}>
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实际汇率: {getActualRateDisplay(pair.key)}
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</Text>
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</div>
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</Card>
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</Col>
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);
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})}
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</Row>
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{/* 确认按钮 */}
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<div style={{ marginTop: 24, textAlign: 'center' }}>
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<Button
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type="primary"
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size="large"
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icon={<CheckOutlined />}
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onClick={handleConfirm}
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loading={saving}
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style={{ minWidth: 200 }}
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>
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确认保存汇率
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</Button>
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</div>
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{/* 历史汇率表 */}
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<Card
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title={
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<Space>
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<HistoryOutlined />
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<span>历史汇率记录</span>
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</Space>
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}
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style={{ marginTop: 24 }}
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>
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<Table
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dataSource={historyRates}
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columns={historyColumns}
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rowKey="id"
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pagination={{ pageSize: 10 }}
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size="small"
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/>
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</Card>
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<Card style={{ marginTop: 16, background: '#fffbe6', borderColor: '#ffe58f' }}>
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<Text type="warning">
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提示：输入任意一侧数值，另一侧会自动计算。实际汇率实时显示为 1左侧币种 = X右侧币种。点击"确认保存汇率"按钮保存当前设置到数据库。
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</Text>
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</Card>
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</div>
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);
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};
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export default ExchangeRatePage;
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