247 lines
7.0 KiB
JavaScript
247 lines
7.0 KiB
JavaScript
export function isTui(item) {
|
|
// console.log("isTui",item.status);
|
|
return item.status == 'return' || item.status == 'refund' || item.status == 'refunding'
|
|
}
|
|
//是否使用会员价
|
|
export function isUseVipPrice(vipUser,goods){
|
|
return vipUser.id&&vipUser.isVip&&uni.getStorageSync("shopInfo").isMemberPrice
|
|
}
|
|
|
|
//计算商品券优惠价格
|
|
export function returnProductCouponPrice(coup, goodsArr, vipUser) {
|
|
const item = goodsArr.find(v => v.productId == coup.proId);
|
|
if (!item) {
|
|
return 0
|
|
}
|
|
const memberPrice = item.memberPrice ? item.memberPrice : item.price;
|
|
const price = item ? (isUseVipPrice(vipUser,item) ? memberPrice : item.price) : 0;
|
|
return price * coup.num
|
|
|
|
}
|
|
|
|
|
|
//返回新的商品列表，过滤掉退菜的，退单的商品
|
|
export function returnNewGoodsList(arr) {
|
|
return uni.$utils.objToArrary(arr).filter(v => !isTui(v))
|
|
}
|
|
//根据当前购物车商品以及数量,已选券对应商品数量，判断该商品券是否可用
|
|
export function returnCoupCanUse(goodsArr = [], coup, selCoupArr = []) {
|
|
// if(!coup.use){
|
|
// return false
|
|
// }
|
|
const findGoods = goodsArr.filter(v => v.productId == coup.proId)
|
|
if (!findGoods.length) {
|
|
return false
|
|
}
|
|
const findGoodsTotalNumber = findGoods.reduce((prve, cur) => {
|
|
return prve + cur.num
|
|
}, 0)
|
|
const selCoupNumber = selCoupArr.filter(v => v.proId == coup.proId).reduce((prve, cur) => {
|
|
return prve + 1
|
|
}, 0)
|
|
if (selCoupNumber >= findGoodsTotalNumber) {
|
|
return false
|
|
}
|
|
return findGoodsTotalNumber < selCoupNumber ? false : true
|
|
}
|
|
//查找购物车商品根据购物车商品数据返回商品券信息（抵扣价格以及是否满足可用需求）
|
|
export function returnProductCoupon(coup, goodsArr, vipUser, selCoupArr = []) {
|
|
const newGoodsArr = returnNewGoodsList(goodsArr)
|
|
const item = newGoodsArr.find(v => v.productId == coup.proId);
|
|
if (!item) {
|
|
return {
|
|
...coup,
|
|
discountAmount: 0,
|
|
use: false
|
|
}
|
|
}
|
|
let memberPrice = item.memberPrice ? item.memberPrice : item.price;
|
|
let price = item ? (isUseVipPrice(vipUser,item) ? memberPrice : item.price) : 0;
|
|
price = item.discountSaleAmount ? item.discountSaleAmount : price
|
|
const discountAmount = (price * 1).toFixed(2)
|
|
|
|
// const canUse = !coup.use ? false : (discountAmount > 0 && returnCoupCanUse(goodsArr, coup, selCoupArr))
|
|
// const canUse=discountAmount>0
|
|
const canUse=coup.use
|
|
return {
|
|
...coup,
|
|
discountAmount: discountAmount,
|
|
use: canUse
|
|
}
|
|
|
|
}
|
|
/**
|
|
* 根据购物车商品计算商品券抵扣价格以及是否满足可用需求
|
|
* 1.商品券对应商品数量大于购物车对应商品数量不可用
|
|
* 2.未在购物车找到相关商品不可用
|
|
* @param {*} coupArr
|
|
* @param {*} goodsArr
|
|
* @param {*} vipUser
|
|
* @returns
|
|
*/
|
|
export function returnProductAllCoup(coupArr, goodsArr, vipUser) {
|
|
return coupArr.map((v) => {
|
|
return returnProductCoupon(v, goodsArr, vipUser)
|
|
})
|
|
|
|
}
|
|
//返回商品实际支付价格
|
|
export function returnProductPayPrice(goods,vipUser){
|
|
console.log(goods)
|
|
let memberPrice = goods.memberPrice ? goods.memberPrice : goods.price;
|
|
let price = isUseVipPrice(vipUser,goods) ? memberPrice : goods.price;
|
|
price = goods.discountSaleAmount ? goods.discountSaleAmount : price
|
|
return price
|
|
}
|
|
//返回商品券抵扣的商品价格
|
|
export function returnProductCoupAllPrice(productPriceArr,startIndex,num,isMember=true){
|
|
return productPriceArr.slice(startIndex,startIndex+num).reduce((prve,cur)=>{
|
|
let curPrice=0
|
|
if(typeof cur==='object'){
|
|
curPrice=isMember?cur.memberPrice*1:cur.price
|
|
}else{
|
|
curPrice = cur*1
|
|
}
|
|
return prve + curPrice
|
|
},0)
|
|
}
|
|
|
|
//返回商品券可抵扣的商品数量
|
|
export function returnProductCanUseNum(productPriceArr,startIndex,num){
|
|
let n=0;
|
|
for(let i=0;i<num;i++){
|
|
if(productPriceArr[startIndex*1+i]){
|
|
n+=1
|
|
}else{
|
|
break
|
|
}
|
|
}
|
|
return n
|
|
}
|
|
|
|
//返回同类商品券在同类商品价格数组里的开始位置
|
|
export function returnProCoupStartIndex(coupArr,index){
|
|
return coupArr.slice(0,index).reduce((prve,cur)=>{
|
|
return prve+cur.num*1
|
|
},0)
|
|
}
|
|
//返回商品数量从0到n每一个对应的价格对照表
|
|
export function returnGoodsPayPriceMap(goodsArr){
|
|
return goodsArr.reduce((prve,cur)=>{
|
|
if(!prve.hasOwnProperty(cur.productId)){
|
|
prve[cur.productId]=[]
|
|
}
|
|
let arr = new Array(Math.ceil(cur.num)).fill(cur).map(v=>{
|
|
return {
|
|
memberPrice:v.memberPrice?v.memberPrice:v.price,
|
|
price:v.price
|
|
}
|
|
})
|
|
prve[cur.productId].push(...arr)
|
|
return prve
|
|
},{})
|
|
|
|
}
|
|
//计算商品券总优惠价格
|
|
export function returnProductCouponAllPrice(coupArr, goodsArr, vipUser) {
|
|
if (coupArr.length == 0) {
|
|
return 0;
|
|
}
|
|
//商品分组
|
|
const goodsMap={}
|
|
//商品数量从0到n每一个对应的价格
|
|
const goodsPayPriceMap={}
|
|
//商品券分组
|
|
let coupMap={}
|
|
for(let i in coupArr){
|
|
const coup=coupArr[i]
|
|
if(coupMap.hasOwnProperty(coup.proId)){
|
|
coupMap[coup.proId].push(coup)
|
|
}else{
|
|
coupMap[coup.proId]=[coup]
|
|
}
|
|
}
|
|
let total=0
|
|
for(let key in coupMap){
|
|
const arr=coupMap[key]
|
|
for(let i in arr){
|
|
const coup=arr[i]
|
|
if(!goodsMap.hasOwnProperty(coup.proId)){
|
|
goodsMap[coup.proId]= goodsArr.filter(v=>v.productId==coup.proId).map((v,i)=>{
|
|
return {
|
|
...v,
|
|
payPrice: returnProductPayPrice(v,vipUser)
|
|
}
|
|
}).sort((a,b)=>{
|
|
let aPrice=a.payPrice
|
|
let bPrice=b.payPrice
|
|
return aPrice-bPrice
|
|
})
|
|
goodsPayPriceMap[coup.proId] = goodsMap[coup.proId].reduce((prve,cur)=>{
|
|
const arr=new Array(cur.num).fill(cur.payPrice)
|
|
prve.push(...arr)
|
|
return prve
|
|
},[])
|
|
}
|
|
const proCoupStartIndex=returnProCoupStartIndex(arr,i)
|
|
const coupNum = Math.min(coupMap[coup.proId].length)
|
|
total+=returnProductCoupAllPrice(goodsPayPriceMap[coup.proId],proCoupStartIndex,coupNum)
|
|
}
|
|
}
|
|
|
|
return total.toFixed(2);
|
|
|
|
}
|
|
//计算满减券总优惠价格
|
|
export function returnFullReductionCouponAllPrice(coupArr) {
|
|
if (coupArr.length == 0) {
|
|
return 0;
|
|
}
|
|
return coupArr.filter(v => v.type == 1).reduce((a, b) => {
|
|
const price = b.discountAmount
|
|
return a + price;
|
|
}, 0).toFixed(2);
|
|
|
|
}
|
|
//计算优惠券总价格
|
|
export function returnCouponAllPrice(coupArr, goodsArr, vipUser) {
|
|
const poductAllprice = returnProductCouponAllPrice(coupArr, goodsArr, vipUser)
|
|
const pointAllPrice = returnFullReductionCouponAllPrice(coupArr)
|
|
return (poductAllprice * 1 + pointAllPrice * 1).toFixed(2);
|
|
}
|
|
|
|
//返回当前满减券列表可用状态
|
|
export function returnCanUseFullReductionCoupon(coupArr, payPrice, selCoup) {
|
|
return coupArr.map(v => {
|
|
if (v.id == selCoup.id) {
|
|
return v
|
|
}
|
|
const isfullAmount = payPrice >= v.fullAmount * 1
|
|
if(payPrice<=0){
|
|
return {
|
|
...v,
|
|
use: false
|
|
}
|
|
}
|
|
return {
|
|
...v,
|
|
use: isfullAmount
|
|
}
|
|
})
|
|
}
|
|
|
|
//根据商品数量还有商品券数量返回优惠券可以使用的数量数组
|
|
export function returnCanUseNumProductCoup(coupArr,){
|
|
let productCoup = coupArr.filter(v => v.type == 2)
|
|
//商品券分组
|
|
let coupMap={}
|
|
for(let i in productCoup){
|
|
const coup=productCoup[i]
|
|
if(coupMap.hasOwnProperty(coup.proId)){
|
|
coupMap[coup.proId].push(coup)
|
|
}else{
|
|
coupMap[coup.proId]=[coup]
|
|
}
|
|
}
|
|
return arr
|
|
} |