556 lines
15 KiB
JavaScript
556 lines
15 KiB
JavaScript
import Dialog from 'tdesign-miniprogram/dialog/index';
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import Toast from 'tdesign-miniprogram/toast/index';
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import {
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fetchCartGroupData,
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updateCartItem,
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removeFromCart,
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addToCart,
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selectCartItem,
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selectAllCartItems
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} from '../../services/cart/cart';
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Page({
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data: {
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cartGroupData: null,
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refresherTriggered: false, // 下拉刷新状态
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},
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// 调用自定义tabbar的init函数，使页面与tabbar激活状态保持一致
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onShow() {
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this.getTabBar().init();
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// 每次显示页面时刷新购物车数据，确保数据是最新的
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this.refreshData();
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},
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onLoad() {
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this.refreshData();
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},
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refreshData() {
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this.getCartGroupData().then((res) => {
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let isEmpty = true;
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const cartGroupData = res.data;
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// 一些组件中需要的字段可能接口并没有返回，或者返回的数据结构与预期不一致，需要在此先对数据做一些处理
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// 统计门店下加购的商品是否全选、是否存在缺货/无货
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if (cartGroupData && cartGroupData.storeGoods) {
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for (const store of cartGroupData.storeGoods) {
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store.isSelected = true; // 该门店已加购商品是否全选
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store.storeStockShortage = false; // 该门店已加购商品是否存在库存不足
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if (!store.shortageGoodsList) {
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store.shortageGoodsList = []; // 该门店已加购商品如果库存为0需单独分组
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}
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for (const activity of store.promotionGoodsList) {
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activity.goodsPromotionList = activity.goodsPromotionList.filter((goods) => {
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goods.originPrice = undefined;
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// 统计是否有加购数大于库存数的商品
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if (goods.quantity > goods.stockQuantity) {
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store.storeStockShortage = true;
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}
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// 统计是否全选
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if (!goods.isSelected) {
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store.isSelected = false;
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}
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// 库存为0（无货）的商品单独分组
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if (goods.stockQuantity > 0) {
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return true;
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}
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store.shortageGoodsList.push(goods);
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return false;
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});
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if (activity.goodsPromotionList.length > 0) {
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isEmpty = false;
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}
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}
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if (store.shortageGoodsList.length > 0) {
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isEmpty = false;
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}
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}
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}
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if (cartGroupData && cartGroupData.invalidGoodItems) {
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cartGroupData.invalidGoodItems = cartGroupData.invalidGoodItems.map((goods) => {
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goods.originPrice = undefined;
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return goods;
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});
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}
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if (cartGroupData) {
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cartGroupData.isNotEmpty = !isEmpty;
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}
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this.setData({ cartGroupData });
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});
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},
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findGoods(spuId, skuId) {
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let currentStore;
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let currentActivity;
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let currentGoods;
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if (!this.data.cartGroupData || !this.data.cartGroupData.storeGoods) {
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return {
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currentStore: null,
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currentActivity: null,
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currentGoods: null,
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};
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}
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const { storeGoods } = this.data.cartGroupData;
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for (const store of storeGoods) {
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for (const activity of store.promotionGoodsList) {
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for (const goods of activity.goodsPromotionList) {
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if (goods.spuId === spuId && goods.skuId === skuId) {
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currentStore = store;
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currentActivity = activity;
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currentGoods = goods;
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return {
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currentStore,
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currentActivity,
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currentGoods,
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};
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}
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}
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}
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}
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return {
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currentStore,
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currentActivity,
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currentGoods,
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};
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},
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// 获取购物车数据 - 每次都从后端获取最新数据
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getCartGroupData() {
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return fetchCartGroupData();
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},
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// 选择单个商品
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selectGoodsService({ spuId, skuId, isSelected }) {
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// 先更新本地状态
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const { currentGoods } = this.findGoods(spuId, skuId);
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if (currentGoods) {
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currentGoods.isSelected = isSelected ? 1 : 0;
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}
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// 调用API更新后端状态
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const cartId = currentGoods ? currentGoods.uid : spuId;
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return selectCartItem(cartId, isSelected).catch(err => {
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console.error('选择商品失败:', err);
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// 如果API调用失败，恢复本地状态
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if (currentGoods) {
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currentGoods.isSelected = isSelected ? 0 : 1;
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}
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throw err;
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});
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},
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// 全选门店
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// 注：实际场景时应该调用接口更改选中状态
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selectStoreService({ storeId, isSelected }) {
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if (!this.data.cartGroupData || !this.data.cartGroupData.storeGoods) {
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return;
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}
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const currentStore = this.data.cartGroupData.storeGoods.find((s) => s.storeId === storeId);
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if (currentStore) {
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currentStore.isSelected = isSelected;
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// 添加数据验证，确保数组存在
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if (Array.isArray(currentStore.promotionGoodsList)) {
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currentStore.promotionGoodsList.forEach((activity) => {
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if (Array.isArray(activity.goodsPromotionList)) {
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activity.goodsPromotionList.forEach((goods) => {
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goods.isSelected = isSelected;
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});
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}
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});
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}
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}
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return Promise.resolve();
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},
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// 加购数量变更
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async changeQuantityService(spuId, skuId, quantity) {
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try {
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const goods = this.findGoods(spuId, skuId);
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if (!goods) {
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Toast({
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context: this,
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selector: '#t-toast',
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message: '商品不存在',
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theme: 'error',
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});
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return;
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}
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// 调用后端API，传递skuId
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await updateCartItem(spuId, quantity, skuId);
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// 更新本地数据
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goods.quantity = quantity;
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this.setData({
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cartGroupData: this.data.cartGroupData,
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});
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Toast({
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context: this,
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selector: '#t-toast',
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message: '修改成功',
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theme: 'success',
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});
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} catch (error) {
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console.error('修改数量失败:', error);
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Toast({
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context: this,
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selector: '#t-toast',
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message: error.message || '修改失败',
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theme: 'error',
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});
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}
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},
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// 删除商品
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async deleteGoodsService(spuId, skuId) {
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try {
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const goods = this.findGoods(spuId, skuId);
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if (!goods.currentGoods) {
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Toast({
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context: this,
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selector: '#t-toast',
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message: '商品不存在',
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theme: 'error',
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});
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return;
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}
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// 调用后端API，传递skuId
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await removeFromCart(spuId, skuId);
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// 重新获取购物车数据
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this.refreshData();
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Toast({
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context: this,
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selector: '#t-toast',
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message: '删除成功',
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theme: 'success',
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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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Toast({
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context: this,
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selector: '#t-toast',
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message: error.message || '删除失败',
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theme: 'error',
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});
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}
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},
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// 清空失效商品
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// 注：实际场景时应该调用接口
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clearInvalidGoodsService() {
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this.data.cartGroupData.invalidGoodItems = [];
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return Promise.resolve();
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},
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onGoodsSelect(e) {
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const {
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goods: { spuId, skuId },
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isSelected,
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} = e.detail;
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const { currentGoods } = this.findGoods(spuId, skuId);
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Toast({
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context: this,
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selector: '#t-toast',
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message: `${isSelected ? '选择' : '取消'}"${
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currentGoods.title.length > 5 ? `${currentGoods.title.slice(0, 5)}...` : currentGoods.title
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}"`,
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icon: '',
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});
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this.selectGoodsService({ spuId, skuId, isSelected }).then(() => this.refreshData());
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},
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onStoreSelect(e) {
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const {
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store: { storeId },
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isSelected,
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} = e.detail;
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this.selectStoreService({ storeId, isSelected }).then(() => this.refreshData());
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},
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onQuantityChange(e) {
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const {
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goods: { spuId, skuId },
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quantity,
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} = e.detail;
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const { currentGoods } = this.findGoods(spuId, skuId);
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const stockQuantity = currentGoods.stockQuantity > 0 ? currentGoods.stockQuantity : 0; // 避免后端返回的是-1
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// 加购数量超过库存数量
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if (quantity > stockQuantity) {
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// 加购数量等于库存数量的情况下继续加购
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if (currentGoods.quantity === stockQuantity && quantity - stockQuantity === 1) {
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Toast({
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context: this,
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selector: '#t-toast',
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message: '当前商品库存不足',
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});
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return;
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}
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Dialog.confirm({
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title: '商品库存不足',
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content: `当前商品库存不足，最大可购买数量为${stockQuantity}件`,
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confirmBtn: '修改为最大可购买数量',
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cancelBtn: '取消',
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})
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.then(() => {
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this.changeQuantityService(spuId, skuId, stockQuantity).then(() => this.refreshData());
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})
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.catch(() => {});
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return;
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}
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this.changeQuantityService(spuId, skuId, quantity).then(() => this.refreshData());
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},
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// SKU变更
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async onSkuChange(e) {
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const { oldSpuId, oldSkuId, newSpuId, newSkuId, quantity } = e.detail;
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try {
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// 先删除旧SKU
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await removeFromCart(oldSpuId, oldSkuId);
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// 再添加新SKU，使用用户选择的数量
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await addToCart(newSpuId, newSkuId, quantity || 1);
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// 刷新购物车数据
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this.refreshData();
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Toast({
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context: this,
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selector: '#t-toast',
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message: '规格修改成功',
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theme: 'success',
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});
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} catch (error) {
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console.error('SKU变更失败:', error);
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Toast({
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context: this,
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selector: '#t-toast',
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message: error.message || '修改规格失败',
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theme: 'error',
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});
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}
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},
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goCollect() {
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/** 活动肯定有一个活动ID，用来获取活动banner，活动商品列表等 */
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const promotionID = '123';
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wx.navigateTo({
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url: `/pages/promotion/promotion-detail/index?promotion_id=${promotionID}`,
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});
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},
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goGoodsDetail(e) {
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const { spuId, storeId } = e.detail.goods;
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wx.navigateTo({
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url: `/pages/goods/details/index?spuId=${spuId}&storeId=${storeId}`,
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});
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},
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clearInvalidGoods() {
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// 实际场景时应该调用接口清空失效商品
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this.clearInvalidGoodsService().then(() => this.refreshData());
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},
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onGoodsDelete(e) {
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const {
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goods: { spuId, skuId },
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} = e.detail;
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Dialog.confirm({
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content: '确认删除该商品吗?',
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confirmBtn: '确定',
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cancelBtn: '取消',
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}).then(() => {
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// deleteGoodsService 内部已经包含了Toast提示和数据刷新，无需重复操作
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this.deleteGoodsService(spuId, skuId);
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});
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},
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onSelectAll(event) {
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const { isAllSelected } = event?.detail ?? {};
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Toast({
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context: this,
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selector: '#t-toast',
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message: `${isAllSelected ? '取消' : '点击'}了全选按钮`,
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});
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// 调用接口改变全选
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selectAllCartItems(!isAllSelected).then(() => {
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this.refreshData();
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}).catch(err => {
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console.error('全选操作失败:', err);
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Toast({
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context: this,
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selector: '#t-toast',
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message: '操作失败，请重试',
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});
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});
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},
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onToSettle() {
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const goodsRequestList = [];
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let totalAmount = 0;
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let selectedCount = 0;
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// 添加数据验证，确保数据结构存在
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if (this.data.cartGroupData && Array.isArray(this.data.cartGroupData.storeGoods)) {
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this.data.cartGroupData.storeGoods.forEach((store) => {
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if (Array.isArray(store.promotionGoodsList)) {
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store.promotionGoodsList.forEach((promotion) => {
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if (Array.isArray(promotion.goodsPromotionList)) {
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promotion.goodsPromotionList.forEach((m) => {
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if (m.isSelected == 1) {
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// 检查库存
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if (m.quantity > m.stockQuantity) {
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Toast({
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context: this,
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selector: '#t-toast',
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message: `${m.title}库存不足，请调整数量`,
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});
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return;
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}
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goodsRequestList.push({
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...m,
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// 确保价格格式正确
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price: parseInt(m.price) || 0,
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originPrice: parseInt(m.originPrice) || parseInt(m.price) || 0,
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});
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selectedCount += m.quantity;
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totalAmount += (parseInt(m.price) || 0) * m.quantity;
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}
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});
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}
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});
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}
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});
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}
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// 验证是否有选中的商品
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if (goodsRequestList.length === 0) {
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Toast({
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context: this,
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selector: '#t-toast',
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message: '请选择要结算的商品',
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});
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return;
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}
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// 验证用户是否登录
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const token = wx.getStorageSync('token');
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if (!token) {
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Dialog.confirm({
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title: '提示',
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content: '请先登录后再进行结算',
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confirmBtn: '去登录',
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cancelBtn: '取消',
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}).then(() => {
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wx.navigateTo({ url: '/pages/login/index' });
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});
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return;
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}
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// 保存结算数据到本地存储
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const orderData = {
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goodsRequestList,
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totalAmount,
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selectedCount,
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timestamp: Date.now()
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};
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try {
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wx.setStorageSync('order.goodsRequestList', JSON.stringify(goodsRequestList));
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wx.setStorageSync('order.settlementData', JSON.stringify(orderData));
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// 跳转到订单确认页面
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wx.navigateTo({
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url: '/pages/order/order-confirm/index?type=cart',
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success: () => {
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console.log('跳转到订单确认页面成功');
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},
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fail: (err) => {
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console.error('跳转失败:', err);
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Toast({
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context: this,
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selector: '#t-toast',
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message: '跳转失败，请重试',
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});
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}
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});
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} catch (error) {
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console.error('保存订单数据失败:', error);
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Toast({
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context: this,
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selector: '#t-toast',
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message: '数据保存失败，请重试',
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});
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}
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},
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onGotoHome() {
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wx.switchTab({ url: '/pages/home/home' });
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},
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// 下拉刷新相关方法
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onRefresh() {
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console.log('开始下拉刷新');
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this.setData({
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refresherTriggered: true,
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});
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// 重新获取购物车数据
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this.refreshData();
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// 模拟网络请求延迟，确保用户能看到刷新动画
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setTimeout(() => {
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this.setData({
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refresherTriggered: false,
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});
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// 显示刷新成功提示
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Toast({
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context: this,
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selector: '#t-toast',
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message: '刷新成功',
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theme: 'success',
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duration: 1500,
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});
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}, 1000);
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},
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||
onRefresherPulling(e) {
|
||
console.log('下拉中', e.detail);
|
||
},
|
||
|
||
onRefresherRestore(e) {
|
||
console.log('刷新恢复', e.detail);
|
||
},
|
||
|
||
onRefresherAbort(e) {
|
||
console.log('刷新中止', e.detail);
|
||
this.setData({
|
||
refresherTriggered: false,
|
||
});
|
||
},
|
||
|
||
// 分享功能
|
||
onShareAppMessage() {
|
||
return {
|
||
title: '购物车 - 查看我的心仪好物',
|
||
path: '/pages/cart/index'
|
||
};
|
||
},
|
||
|
||
// 分享到朋友圈
|
||
onShareTimeline() {
|
||
return {
|
||
title: '购物车 - 查看我的心仪好物'
|
||
};
|
||
}
|
||
});
|