451 lines
13 KiB
JavaScript
451 lines
13 KiB
JavaScript
const express = require('express');
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const { getDB } = require('../database');
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const { auth, adminAuth } = require('../middleware/auth');
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const router = express.Router();
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// 获取商品列表
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router.get('/', async (req, res) => {
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try {
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const { page = 1, limit = 10, search = '', category = '', status = '' } = req.query;
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// 确保参数为有效数字
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const pageNum = Math.max(1, parseInt(page) || 1);
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const limitNum = Math.max(1, Math.min(100, parseInt(limit) || 10)); // 限制最大100条
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const offset = Math.max(0, (pageNum - 1) * limitNum);
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console.log('分页参数:', { pageNum, limitNum, offset, search, category, status });
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let whereClause = 'WHERE 1=1';
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const params = [];
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if (search) {
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whereClause += ' AND name LIKE ?';
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params.push(`%${search}%`);
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}
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if (category) {
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whereClause += ' AND category = ?';
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params.push(category);
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}
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if (status) {
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whereClause += ' AND status = ?';
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params.push(status);
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} else {
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whereClause += ' AND status = "active"';
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}
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// 获取总数
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const countQuery = `SELECT COUNT(*) as total FROM products ${whereClause}`;
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const [countResult] = await getDB().execute(countQuery, params);
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const total = countResult[0].total;
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// 获取商品列表
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const query = `
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SELECT id, name, category, points_price as points, stock, image_url as image, description, status, created_at, updated_at
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FROM products
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${whereClause}
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ORDER BY created_at DESC
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LIMIT ${limitNum} OFFSET ${offset}
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`;
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// 确保参数数组正确传递
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const queryParams = [...params];
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console.log('Query params:', queryParams, 'Query:', query);
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const [products] = await getDB().execute(query, queryParams);
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res.json({
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success: true,
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data: {
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products,
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pagination: {
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page: pageNum,
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limit: limitNum,
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total,
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pages: Math.ceil(total / limitNum)
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}
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}
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});
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} catch (error) {
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console.error('获取商品列表失败:', error);
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res.status(500).json({ success: false, message: '获取商品列表失败' });
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}
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});
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// 获取商品分类列表
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router.get('/categories', async (req, res) => {
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try {
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const [categories] = await getDB().execute(
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'SELECT DISTINCT category FROM products WHERE status = "active" AND category IS NOT NULL'
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);
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res.json({
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success: true,
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data: {
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categories: categories.map(item => item.category)
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}
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});
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} catch (error) {
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console.error('获取商品分类失败:', error);
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res.status(500).json({ success: false, message: '获取商品分类失败' });
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}
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});
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// 获取单个商品详情
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router.get('/:id', async (req, res) => {
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try {
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const { id } = req.params;
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const query = `
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SELECT id, name, category, price, points_price as points, stock, image_url as image, description, details, status, created_at, updated_at
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FROM products
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WHERE id = ?
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`;
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const [products] = await getDB().execute(query, [id]);
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if (products.length === 0) {
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return res.status(404).json({ success: false, message: '商品不存在' });
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}
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// 增强商品数据，添加前端需要的字段
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const product = products[0];
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const enhancedProduct = {
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...product,
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images: product.image ? [product.image] : ['/imgs/default-product.png'], // 将单个图片转为数组
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tags: product.category ? [product.category] : [], // 将分类作为标签
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sales: Math.floor(Math.random() * 1000) + 100, // 模拟销量数据
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rating: (Math.random() * 2 + 3).toFixed(1), // 模拟评分 3-5分
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originalPoints: product.points + Math.floor(Math.random() * 100), // 模拟原价
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discount: Math.floor(Math.random() * 3 + 7) // 模拟折扣 7-9折
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};
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res.json({
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success: true,
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data: { product: enhancedProduct }
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});
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} catch (error) {
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console.error('获取商品详情失败:', error);
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res.status(500).json({ success: false, message: '获取商品详情失败' });
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}
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});
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// 创建商品（管理员权限）
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router.post('/', auth, adminAuth, async (req, res) => {
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try {
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const { name, description, price, points_price, stock, category, image_url, details, status = 'active' } = req.body;
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if (!name || !price || !points_price || stock === undefined) {
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return res.status(400).json({ message: '商品名称、原价、积分价格和库存不能为空' });
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}
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const [result] = await getDB().execute(
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`INSERT INTO products (name, description, price, points_price, stock, category, image_url, details, status, created_at, updated_at)
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VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, NOW(), NOW())`,
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[name, description, price, points_price, stock, category || null, image_url, details, status]
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);
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res.status(201).json({
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success: true,
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message: '商品创建成功',
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data: { productId: result.insertId }
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});
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} catch (error) {
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console.error('创建商品错误:', error);
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res.status(500).json({ message: '创建商品失败' });
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}
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});
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// 更新商品（管理员权限）
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router.put('/:id', auth, adminAuth, async (req, res) => {
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try {
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const productId = req.params.id;
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const { name, description, price, points_price, stock, category, image_url, details, status } = req.body;
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// 检查商品是否存在
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const [products] = await getDB().execute(
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'SELECT id FROM products WHERE id = ?',
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[productId]
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);
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if (products.length === 0) {
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return res.status(404).json({ message: '商品不存在' });
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}
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// 构建更新字段
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const updateFields = [];
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const updateValues = [];
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if (name) {
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updateFields.push('name = ?');
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updateValues.push(name);
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}
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if (description !== undefined) {
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updateFields.push('description = ?');
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updateValues.push(description);
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}
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if (price !== undefined) {
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updateFields.push('price = ?');
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updateValues.push(price);
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}
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if (points_price !== undefined) {
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updateFields.push('points_price = ?');
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updateValues.push(points_price);
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}
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if (stock !== undefined) {
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updateFields.push('stock = ?');
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updateValues.push(stock);
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}
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if (category !== undefined) {
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updateFields.push('category = ?');
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updateValues.push(category);
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}
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if (image_url !== undefined) {
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updateFields.push('image_url = ?');
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updateValues.push(image_url);
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}
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if (details !== undefined) {
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updateFields.push('details = ?');
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updateValues.push(details);
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}
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if (status) {
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updateFields.push('status = ?');
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updateValues.push(status);
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}
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if (updateFields.length === 0) {
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return res.status(400).json({ message: '没有要更新的字段' });
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}
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updateFields.push('updated_at = NOW()');
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updateValues.push(productId);
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await getDB().execute(
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`UPDATE products SET ${updateFields.join(', ')} WHERE id = ?`,
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updateValues
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);
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res.json({
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success: true,
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message: '商品更新成功'
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});
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} catch (error) {
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console.error('更新商品错误:', error);
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res.status(500).json({ message: '更新商品失败' });
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}
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});
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// 删除商品（管理员权限）
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router.delete('/:id', auth, adminAuth, async (req, res) => {
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try {
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const { id } = req.params;
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// 检查商品是否存在
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const checkQuery = 'SELECT id FROM products WHERE id = ?';
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const [existing] = await getDB().execute(checkQuery, [id]);
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if (existing.length === 0) {
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return res.status(404).json({ success: false, message: '商品不存在' });
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}
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// 检查是否有相关订单
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const orderCheckQuery = 'SELECT id FROM orders WHERE product_id = ? LIMIT 1';
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const [orders] = await getDB().execute(orderCheckQuery, [id]);
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if (orders.length > 0) {
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return res.status(400).json({ success: false, message: '该商品存在相关订单，无法删除' });
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}
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const query = 'DELETE FROM products WHERE id = ?';
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await getDB().execute(query, [id]);
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res.json({
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success: true,
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message: '商品删除成功'
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});
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} catch (error) {
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console.error('删除商品失败:', error);
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res.status(500).json({ success: false, message: '删除商品失败' });
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}
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});
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// 获取商品统计信息（管理员权限）
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router.get('/stats', auth, adminAuth, async (req, res) => {
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try {
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// 获取商品总数
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const totalQuery = 'SELECT COUNT(*) as total FROM products';
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const [totalResult] = await getDB().execute(totalQuery);
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const totalProducts = totalResult[0].total;
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// 获取活跃商品数
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const activeQuery = 'SELECT COUNT(*) as total FROM products WHERE status = "active"';
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const [activeResult] = await getDB().execute(activeQuery);
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const activeProducts = activeResult[0].total;
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// 获取库存不足商品数（库存小于10）
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const lowStockQuery = 'SELECT COUNT(*) as total FROM products WHERE stock < 10';
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const [lowStockResult] = await getDB().execute(lowStockQuery);
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const lowStockProducts = lowStockResult[0].total;
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// 获取本月新增商品数
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const monthlyQuery = `
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SELECT COUNT(*) as total
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FROM products
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WHERE YEAR(created_at) = YEAR(CURDATE()) AND MONTH(created_at) = MONTH(CURDATE())
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`;
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const [monthlyResult] = await getDB().execute(monthlyQuery);
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const monthlyProducts = monthlyResult[0].total;
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// 计算月增长率
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const lastMonthQuery = `
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SELECT COUNT(*) as total
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FROM products
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WHERE YEAR(created_at) = YEAR(DATE_SUB(CURDATE(), INTERVAL 1 MONTH))
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AND MONTH(created_at) = MONTH(DATE_SUB(CURDATE(), INTERVAL 1 MONTH))
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`;
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const [lastMonthResult] = await getDB().execute(lastMonthQuery);
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const lastMonthProducts = lastMonthResult[0].total;
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const monthlyGrowth = lastMonthProducts > 0
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? ((monthlyProducts - lastMonthProducts) / lastMonthProducts * 100).toFixed(1)
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: 0;
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res.json({
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success: true,
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data: {
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stats: {
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totalProducts,
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activeProducts,
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lowStockProducts,
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monthlyProducts,
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monthlyGrowth: parseFloat(monthlyGrowth)
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}
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}
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});
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} catch (error) {
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console.error('获取商品统计失败:', error);
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res.status(500).json({ success: false, message: '获取商品统计失败' });
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}
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});
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// 获取商品评论
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router.get('/:id/reviews', async (req, res) => {
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try {
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const { id } = req.params;
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// 这里可以从数据库获取真实的评论数据
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// 目前返回模拟数据，格式匹配前端期望
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const mockReviews = [
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{
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id: 1,
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user: {
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name: '用户1',
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avatar: null
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},
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rating: 5,
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content: '商品质量很好，非常满意！',
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createdAt: '2024-01-15 10:30:00',
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images: null
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},
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{
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id: 2,
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user: {
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name: '用户2',
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avatar: null
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},
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rating: 4,
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content: '性价比不错，值得购买。',
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createdAt: '2024-01-14 15:20:00',
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images: null
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},
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{
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id: 3,
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user: {
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name: '用户3',
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avatar: null
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},
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rating: 5,
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content: '发货速度快，包装精美。',
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createdAt: '2024-01-13 09:45:00',
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images: null
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}
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];
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res.json({
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success: true,
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data: {
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reviews: mockReviews,
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total: mockReviews.length,
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averageRating: 4.7
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}
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});
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} catch (error) {
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console.error('获取商品评论失败:', error);
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res.status(500).json({ success: false, message: '获取商品评论失败' });
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}
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});
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// 获取推荐商品
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router.get('/:id/recommended', async (req, res) => {
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try {
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const id = parseInt(req.params.id);
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// 获取同类别的其他商品作为推荐
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const query = `
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SELECT p2.id, p2.name, p2.category, p2.price, p2.points_price as points,
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p2.stock, p2.image_url as image, p2.description
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FROM products p1
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JOIN products p2 ON p1.category = p2.category
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WHERE p1.id = ? AND p2.id != ? AND p2.status = 'active'
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ORDER BY RAND()
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LIMIT 6
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`;
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const [recommendedProducts] = await getDB().execute(query, [id, id]);
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// 如果同类别商品不足，补充其他热门商品
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if (recommendedProducts.length < 6) {
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const remainingCount = 6 - recommendedProducts.length;
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if (remainingCount > 0) {
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const additionalQuery = `
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SELECT id, name, category, price, points_price as points,
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stock, image_url as image, description
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FROM products
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WHERE id != ? AND status = 'active'
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ORDER BY RAND()
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LIMIT ${remainingCount}
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`;
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const [additionalProducts] = await getDB().execute(
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additionalQuery,
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[id]
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);
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recommendedProducts.push(...additionalProducts);
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}
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}
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res.json({
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success: true,
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data: {
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products: recommendedProducts
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}
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});
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} catch (error) {
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console.error('获取推荐商品失败:', error);
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res.status(500).json({ success: false, message: '获取推荐商品失败' });
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}
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});
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module.exports = router; |