Initial commit: lottery project structure
Add core project files including: - Client and server directories - Backup script - Package configuration - Git ignore rules Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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const axios = require('axios');
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const cheerio = require('cheerio');
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const db = require('../db/init');
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// 获取预计开奖时间
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function getEstimatedDrawTime(game, issue) {
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const now = new Date();
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const currentDay = now.getDay();
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const currentHour = now.getHours();
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const currentMinute = now.getMinutes();
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let drawDays = []; // 开奖日期（周日=0，周一=1...）
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if (game === '双色球') {
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drawDays = [2, 4, 0]; // 周二、周四、周日
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} else if (game === '大乐透') {
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drawDays = [1, 3, 5]; // 周一、周三、周六
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}
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if (drawDays.length === 0) return null;
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// 按日期排序
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drawDays.sort((a, b) => a - b);
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// 找到最近的下一个开奖日
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let daysUntilDraw = -1;
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for (const day of drawDays) {
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if (day > currentDay) {
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daysUntilDraw = day - currentDay;
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break;
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}
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}
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// 如果今天就是开奖日，检查是否已过开奖时间
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if (daysUntilDraw === -1) {
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// 没有找到更晚的日期，循环回到第一个开奖日
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daysUntilDraw = (drawDays[0] + 7) - currentDay;
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} else if (daysUntilDraw === 0) {
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// 今天是开奖日，检查是否已过21:15
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if (currentHour > 21 || (currentHour === 21 && currentMinute >= 15)) {
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daysUntilDraw = (drawDays[0] + 7) - currentDay;
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}
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}
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const nextDraw = new Date(now);
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nextDraw.setDate(now.getDate() + daysUntilDraw);
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nextDraw.setHours(21, 15, 0, 0);
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return nextDraw.toISOString();
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}
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// 获取开奖结果
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async function fetchLotteryResult(game, issue) {
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// 先查本地缓存
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const cached = db.prepare('SELECT * FROM lottery_results WHERE game = ? AND issue = ?').get(game, issue);
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if (cached) {
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return { ...cached, numbers: JSON.parse(cached.numbers) };
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}
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// 从网络获取
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try {
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const result = await fetchFromWeb(game, issue);
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if (result) {
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// 缓存到数据库
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db.prepare(`
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INSERT OR REPLACE INTO lottery_results (game, issue, numbers, draw_date)
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VALUES (?, ?, ?, ?)
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`).run(game, issue, JSON.stringify(result.numbers), result.draw_date);
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}
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return result;
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} catch (err) {
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console.error('获取开奖数据失败:', err.message);
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return null;
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}
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}
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// 从500.com获取数据
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async function fetchFromWeb(game, issue) {
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try {
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if (game === '双色球') {
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return await fetchSSQ(issue);
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} else if (game === '大乐透') {
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return await fetchDLT(issue);
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}
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} catch (err) {
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console.error(`获取${game}开奖数据失败:`, err.message);
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}
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return null;
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}
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// 获取双色球开奖数据
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async function fetchSSQ(issue) {
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const url = 'https://datachart.500.com/ssq/history/newinc/history.php?limit=50';
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const response = await axios.get(url, {
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headers: { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36' },
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timeout: 10000
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});
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const $ = cheerio.load(response.data);
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let result = null;
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// 处理期号格式：2026019 -> 26019 或 26019 -> 26019
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const shortIssue = issue.length > 5 ? issue.slice(-5) : issue;
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$('#tdata tr').each((i, row) => {
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const tds = $(row).find('td');
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const rowIssue = $(tds[0]).text().trim();
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if (rowIssue === shortIssue || rowIssue === issue) {
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const red = [];
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for (let j = 1; j <= 6; j++) {
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red.push($(tds[j]).text().trim());
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}
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const blue = $(tds[7]).text().trim();
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const drawDate = $(tds[15]).text().trim();
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result = {
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game: '双色球',
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issue: issue, // 返回原始期号
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numbers: { red, blue },
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draw_date: drawDate
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};
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return false;
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}
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});
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return result;
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}
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// 获取大乐透开奖数据
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async function fetchDLT(issue) {
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const url = 'https://datachart.500.com/dlt/history/newinc/history.php?limit=50';
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const response = await axios.get(url, {
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headers: { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36' },
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timeout: 10000
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});
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const $ = cheerio.load(response.data);
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let result = null;
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// 处理期号格式：2026019 -> 26019 或 26019 -> 26019
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const shortIssue = issue.length > 5 ? issue.slice(-5) : issue;
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$('#tdata tr').each((i, row) => {
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const tds = $(row).find('td');
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const rowIssue = $(tds[0]).text().trim();
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if (rowIssue === shortIssue || rowIssue === issue) {
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const front = [];
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for (let j = 1; j <= 5; j++) {
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front.push($(tds[j]).text().trim());
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}
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const back = [];
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for (let j = 6; j <= 7; j++) {
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back.push($(tds[j]).text().trim());
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}
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const drawDate = $(tds[14]).text().trim();
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result = {
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game: '大乐透',
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issue: issue, // 返回原始期号
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numbers: { front, back },
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draw_date: drawDate
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};
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return false;
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}
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});
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return result;
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}
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// 检查中奖
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function checkWinning(game, ticketNumbers, resultNumbers) {
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if (!ticketNumbers || !resultNumbers) return { won: false, prize: 0 };
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if (game === '双色球') {
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return checkSSQWinning(ticketNumbers, resultNumbers);
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} else if (game === '大乐透') {
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return checkDLTWinning(ticketNumbers, resultNumbers);
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}
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return { won: false, prize: 0 };
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}
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// 双色球中奖检查
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function checkSSQWinning(ticket, result) {
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const redMatch = ticket.red.filter(n => result.red.includes(n)).length;
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const blueMatch = ticket.blue === result.blue;
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if (redMatch === 6 && blueMatch) return { won: true, level: 1, prize: 5000000 };
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if (redMatch === 6) return { won: true, level: 2, prize: 100000 };
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if (redMatch === 5 && blueMatch) return { won: true, level: 3, prize: 3000 };
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if (redMatch === 5 || (redMatch === 4 && blueMatch)) return { won: true, level: 4, prize: 200 };
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if (redMatch === 4 || (redMatch === 3 && blueMatch)) return { won: true, level: 5, prize: 10 };
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if (blueMatch) return { won: true, level: 6, prize: 5 };
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return { won: false, prize: 0 };
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}
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// 大乐透中奖检查
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function checkDLTWinning(ticket, result) {
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const frontMatch = ticket.front.filter(n => result.front.includes(n)).length;
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const backMatch = ticket.back.filter(n => result.back.includes(n)).length;
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if (frontMatch === 5 && backMatch === 2) return { won: true, level: 1, prize: 10000000 };
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if (frontMatch === 5 && backMatch === 1) return { won: true, level: 2, prize: 100000 };
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if (frontMatch === 5) return { won: true, level: 3, prize: 10000 };
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if (frontMatch === 4 && backMatch === 2) return { won: true, level: 4, prize: 3000 };
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if (frontMatch === 4 && backMatch === 1) return { won: true, level: 5, prize: 300 };
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if (frontMatch === 3 && backMatch === 2) return { won: true, level: 6, prize: 200 };
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if (frontMatch === 4) return { won: true, level: 7, prize: 100 };
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// 8等奖：3+1 或 2+2，15元
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if ((frontMatch === 3 && backMatch === 1) || (frontMatch === 2 && backMatch === 2)) return { won: true, level: 8, prize: 15 };
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// 9等奖：3+0 或 2+1 或 1+2 或 后区2个，5元
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if (frontMatch === 3 || (frontMatch === 2 && backMatch === 1) || (frontMatch === 1 && backMatch === 2) || backMatch === 2) return { won: true, level: 9, prize: 5 };
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return { won: false, prize: 0 };
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}
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// 批量更新彩票状态
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async function updateTicketsStatus(userId) {
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const pendingTickets = db.prepare(`
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SELECT * FROM tickets WHERE user_id = ? AND status = 'pending' AND issue IS NOT NULL
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`).all(userId);
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for (const ticket of pendingTickets) {
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const result = await fetchLotteryResult(ticket.game, ticket.issue);
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if (result) {
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const ticketNumbers = ticket.numbers ? JSON.parse(ticket.numbers) : null;
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if (ticketNumbers && ticketNumbers.length > 0) {
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let totalPrize = 0;
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for (const num of ticketNumbers) {
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const winning = checkWinning(ticket.game, num, result.numbers);
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if (winning.won) {
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totalPrize += winning.prize * ticket.multiple;
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// 大乐透只有1等奖和2等奖追加才有80%浮动奖金，其他等级没有
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if (ticket.is_additional && winning.level >= 1 && winning.level <= 2) {
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totalPrize += Math.floor(winning.prize * 0.8) * ticket.multiple;
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}
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}
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}
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db.prepare('UPDATE tickets SET prize = ?, status = ? WHERE id = ?')
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.run(totalPrize, totalPrize > 0 ? 'won' : 'lost', ticket.id);
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}
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}
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}
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}
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module.exports = { fetchLotteryResult, checkWinning, updateTicketsStatus, getEstimatedDrawTime };
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