董海洋
281 lines
8.3 KiB
JavaScript
281 lines
8.3 KiB
JavaScript
const { query, transaction } = require('../config/database')
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const { paginate } = require('../utils/pagination')
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const orderService = require('../services/orderService')
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const { requireAuth } = require('./users')
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const ORDER_UPDATEABLE_FIELDS = ['status', 'total_price', 'totalPrice', 'cart']
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function allowedUpdateFields(body) {
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const result = {}
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for (const key of ORDER_UPDATEABLE_FIELDS) {
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if (key in body) {
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result[key] = body[key]
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}
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}
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return result
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}
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async function getOrders(ctx) {
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const operator = await requireAuth(ctx)
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if (!operator) return
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const { page, pageSize, status } = ctx.query
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let sql = `
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SELECT
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o.*,
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JSON_ARRAYAGG(
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JSON_OBJECT(
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'id', oi.id,
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'order_id', oi.order_id,
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'goods_id', oi.goods_id,
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'goods_name', oi.goods_name,
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'price', oi.price,
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'quantity', oi.quantity,
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'weight', oi.weight,
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'subtotal', oi.subtotal,
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'unit', oi.unit
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)
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) as items_json
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FROM orders o
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LEFT JOIN order_items oi ON o.id = oi.order_id
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WHERE 1=1
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`
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const params = []
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if (operator.role !== 1) {
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sql += ' AND o.user_id = ?'
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params.push(operator.id)
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}
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if (status) {
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sql += ' AND o.status = ?'
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params.push(status)
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}
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sql += ' GROUP BY o.id ORDER BY o.created_at DESC'
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const result = await paginate(query, sql, params, page, pageSize)
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const rows = (result.data || []).map(row => {
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let items = []
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try {
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const itemsJson = row.items_json
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if (itemsJson) {
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items = typeof itemsJson === 'string' ? JSON.parse(itemsJson) : itemsJson
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if (items.length === 1 && items[0].id === null) {
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items = []
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}
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}
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} catch {}
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const { items_json, ...order } = row
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return { ...order, items }
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})
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result.data = rows
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ctx.body = {
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code: 200,
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...result
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}
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}
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async function getOrderById(ctx) {
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const operator = await requireAuth(ctx)
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if (!operator) return
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const orderId = ctx.params.id
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const orders = await query('SELECT * FROM orders WHERE id = ?', [orderId])
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if (orders.length > 0) {
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const order = orders[0]
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if (operator.role !== 1 && order.user_id !== operator.id) {
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ctx.body = { code: 403, message: '无权查看此订单' }
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return
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}
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order.items = await orderService.getOrderItems(orderId)
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ctx.body = {
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code: 200,
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data: order
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}
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} else {
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ctx.body = {
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code: 404,
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message: '订单不存在'
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}
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}
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}
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async function createOrder(ctx) {
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const operator = await requireAuth(ctx)
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if (!operator) return
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const { totalPrice, cart, remark, customerName, customerPhone, orderType, status } = ctx.request.body
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const userId = ctx.request.body.userId || operator.id
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if (operator.role !== 1 && userId !== operator.id) {
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ctx.body = { code: 403, message: '无权为他人创建订单' }
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return
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}
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if (!cart || (Array.isArray(cart) && cart.length === 0)) {
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ctx.body = { code: 400, message: '购物车不能为空' }
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return
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}
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const items = typeof cart === 'string' ? JSON.parse(cart) : cart
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const calculatedTotalPrice = await orderService.recalculateTotalPrice(items)
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const orderId = `ORD${Date.now()}${Math.floor(Math.random() * 10000).toString().padStart(4, '0')}`
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const orderStatus = status || 'pending'
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const userInfo = JSON.stringify({
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remark: remark || '',
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customerName: customerName || '',
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customerPhone: customerPhone || '',
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orderType: orderType || 'customer'
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})
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await transaction(async (conn) => {
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for (const item of items) {
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const goodsId = item.id || item.goods_id || item.goodsId
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if (!goodsId) continue
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const qty = item.pricingType === 2 ? 1 : (item.quantity || 1)
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const [rows] = await conn.execute('SELECT id, name, stock FROM goods WHERE id = ? FOR UPDATE', [goodsId])
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if (rows.length === 0) {
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throw new Error('商品不存在')
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}
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if (rows[0].stock < qty) {
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throw new Error(`${rows[0].name} 库存不足（当前库存: ${rows[0].stock}，需要: ${qty}）`)
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}
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if (orderStatus === 'completed') {
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await conn.execute('UPDATE goods SET stock = stock - ?, sales = COALESCE(sales, 0) + ? WHERE id = ?', [qty, qty, goodsId])
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await conn.execute('UPDATE stock SET quantity = quantity - ? WHERE goods_id = ?', [qty, goodsId])
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}
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}
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await conn.execute(
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'INSERT INTO orders (id, user_id, status, total_price, cart, user_info) VALUES (?, ?, ?, ?, ?, ?)',
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[orderId, userId || null, orderStatus, calculatedTotalPrice, typeof cart === 'string' ? cart : JSON.stringify(cart), userInfo]
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)
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await orderService.insertOrderItems(conn, orderId, cart)
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})
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const orders = await query('SELECT * FROM orders WHERE id = ?', [orderId])
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const created = orders[0]
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created.items = await orderService.getOrderItems(orderId)
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if (created.status === 'completed') {
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setImmediate(() => orderService.processOrderComplete(created))
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}
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ctx.body = {
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code: 200,
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data: created
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}
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}
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async function updateOrder(ctx) {
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const operator = await requireAuth(ctx)
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if (!operator) return
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const orderId = ctx.params.id
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const body = allowedUpdateFields(ctx.request.body)
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const orders = await query('SELECT * FROM orders WHERE id = ?', [orderId])
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if (orders.length > 0) {
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const order = orders[0]
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if (operator.role !== 1 && order.user_id !== operator.id) {
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ctx.body = { code: 403, message: '无权修改此订单' }
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return
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}
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const prevStatus = order.status
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const updateFields = []
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const updateParams = []
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if (body.status !== undefined) {
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updateFields.push('status = ?')
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updateParams.push(body.status)
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}
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const totalPrice = body.total_price !== undefined ? body.total_price : body.totalPrice
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if (totalPrice !== undefined) {
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updateFields.push('total_price = ?')
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updateParams.push(totalPrice)
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}
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if (body.cart !== undefined) {
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const cartStr = typeof body.cart === 'string' ? body.cart : JSON.stringify(body.cart)
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updateFields.push('cart = ?')
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updateParams.push(cartStr)
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}
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if (updateFields.length === 0) {
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ctx.body = { code: 400, message: '没有需要更新的字段' }
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return
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}
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const newStatus = body.status !== undefined ? body.status : prevStatus
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await transaction(async (conn) => {
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if (newStatus === 'completed' && prevStatus !== 'completed') {
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const items = body.cart !== undefined
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? (typeof body.cart === 'string' ? JSON.parse(body.cart) : body.cart)
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: JSON.parse(order.cart || '[]')
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for (const item of items) {
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const goodsId = item.id || item.goods_id || item.goodsId
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if (!goodsId) continue
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const qty = item.pricingType === 2 ? 1 : (item.quantity || 1)
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const [rows] = await conn.execute('SELECT stock FROM goods WHERE id = ? FOR UPDATE', [goodsId])
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if (rows.length > 0 && rows[0].stock >= qty) {
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await conn.execute('UPDATE goods SET stock = stock - ?, sales = COALESCE(sales, 0) + ? WHERE id = ?', [qty, qty, goodsId])
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await conn.execute('UPDATE stock SET quantity = quantity - ? WHERE goods_id = ?', [qty, goodsId])
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}
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}
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}
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updateParams.push(orderId)
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await conn.execute(`UPDATE orders SET ${updateFields.join(', ')} WHERE id = ?`, updateParams)
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if (body.cart !== undefined) {
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await conn.execute('DELETE FROM order_items WHERE order_id = ?', [orderId])
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await orderService.insertOrderItems(conn, orderId, body.cart)
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}
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})
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const updatedOrders = await query('SELECT * FROM orders WHERE id = ?', [orderId])
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const completed = updatedOrders[0]
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completed.items = await orderService.getOrderItems(orderId)
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if (completed.status === 'completed' && prevStatus !== 'completed') {
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setImmediate(() => orderService.processOrderComplete(completed))
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}
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// 订单状态变更时发送微信订阅消息通知
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if (newStatus !== prevStatus && completed.user_id) {
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setImmediate(() => orderService.sendWechatNotification(completed.user_id, completed.id, newStatus, completed.total_price))
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}
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ctx.body = {
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code: 200,
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data: completed
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}
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} else {
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ctx.body = {
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code: 404,
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message: '订单不存在'
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}
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}
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}
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module.exports = {
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getOrders,
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getOrderById,
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createOrder,
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updateOrder
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}
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