Initial commit

miniprogram/pages/coupon/coupon-center/index.js

@@ -0,0 +1,173 @@
+import { request } from '../../../services/_utils/request';
+
+Page({
+  data: {
+    availableCoupons: [], // 可领取的优惠券列表
+    loading: false,
+    refreshing: false,
+  },
+
+  onLoad() {
+    this.fetchAvailableCoupons();
+  },
+
+  onShow() {
+    // 页面显示时刷新数据，以防用户已领取某些优惠券
+    this.fetchAvailableCoupons();
+  },
+
+  // 刷新数据
+  onRefresh() {
+    this.setData({ refreshing: true });
+    this.fetchAvailableCoupons().finally(() => {
+      this.setData({ refreshing: false });
+    });
+  },
+
+  // 获取可领取优惠券列表
+  async fetchAvailableCoupons() {
+    try {
+      this.setData({ loading: true });
+      
+      const response = await request({
+        url: '/coupons',
+        method: 'GET'
+      });
+
+      const coupons = response.data || [];
+      const formattedCoupons = this.formatCoupons(coupons);
+      this.setData({ 
+        availableCoupons: formattedCoupons,
+        loading: false 
+      });
+    } catch (error) {
+      console.error('获取可领取优惠券失败:', error);
+      this.setData({ loading: false });
+      wx.showToast({
+        title: '获取优惠券失败',
+        icon: 'none'
+      });
+    }
+  },
+
+  // 格式化优惠券数据
+  formatCoupons(coupons) {
+    return coupons.map(coupon => {
+      return {
+        id: coupon.id,
+        name: coupon.name,
+        type: coupon.type,
+        value: coupon.value,
+        minAmount: coupon.min_amount,
+        desc: this.getCouponDesc(coupon),
+        timeLimit: this.formatTimeLimit(coupon.start_time, coupon.end_time),
+        status: 'default', // 可领取状态
+        totalCount: coupon.total_count,
+        usedCount: coupon.used_count,
+        remainingCount: coupon.total_count > 0 ? coupon.total_count - coupon.used_count : -1,
+        isReceived: coupon.is_received || false // 是否已领取
+      };
+    });
+  },
+
+  // 获取优惠券描述
+  getCouponDesc(coupon) {
+    if (coupon.type === 1) { // 满减券
+      if (coupon.min_amount > 0) {
+        return `满${(coupon.min_amount / 100).toFixed(0)}元减${(coupon.value / 100).toFixed(0)}元`;
+      }
+      return `立减${(coupon.value / 100).toFixed(0)}元`;
+    } else if (coupon.type === 2) { // 折扣券
+      return `${coupon.value / 10}折`;
+    } else if (coupon.type === 3) { // 免邮券
+      return '免运费';
+    }
+    return coupon.description || '优惠券';
+  },
+
+  // 格式化时间限制
+  formatTimeLimit(startTime, endTime) {
+    const start = new Date(startTime);
+    const end = new Date(endTime);
+    const formatDate = (date) => {
+      const year = date.getFullYear();
+      const month = String(date.getMonth() + 1).padStart(2, '0');
+      const day = String(date.getDate()).padStart(2, '0');
+      return `${year}.${month}.${day}`;
+    };
+    return `${formatDate(start)} - ${formatDate(end)}`;
+  },
+
+  // 领取优惠券
+  async receiveCoupon(e) {
+    const { couponid } = e.currentTarget.dataset;
+    if (!couponid) return;
+
+    // 检查优惠券是否还有库存
+    const coupon = this.data.availableCoupons.find(c => c.id == couponid);
+    if (!coupon || coupon.remainingCount === 0) {
+      wx.showToast({
+        title: '优惠券已抢完',
+        icon: 'none'
+      });
+      return;
+    }
+
+    // 检查是否已领取
+    if (coupon.isReceived) {
+      wx.showToast({
+        title: '您已领取过该优惠券',
+        icon: 'none'
+      });
+      return;
+    }
+
+    try {
+      wx.showLoading({ title: '领取中...' });
+      
+      const response = await request({
+        url: `/coupons/${couponid}/receive`,
+        method: 'POST'
+      });
+
+      wx.hideLoading();
+
+      wx.showToast({
+        title: '领取成功',
+        icon: 'success'
+      });
+      
+      // 设置刷新标识，确保返回其他页面时能刷新优惠券数据
+      wx.setStorageSync('shouldRefreshCoupons', true);
+      
+      // 重新获取优惠券列表
+      this.fetchAvailableCoupons();
+    } catch (error) {
+      wx.hideLoading();
+      console.error('领取优惠券失败:', error);
+      wx.showToast({
+        title: error.message || '领取失败，请重试',
+        icon: 'none'
+      });
+    }
+  },
+
+  // 下拉刷新
+  onPullDownRefresh() {
+    this.setData({ refreshing: true });
+    this.fetchAvailableCoupons().finally(() => {
+      this.setData({ refreshing: false });
+      wx.stopPullDownRefresh();
+    });
+  },
+
+  // 查看优惠券详情
+  viewCouponDetail(e) {
+    const { couponid } = e.currentTarget.dataset;
+    wx.navigateTo({
+      url: `/pages/coupon/coupon-detail/index?id=${couponid}`
+    });
+  },
+
+
+});