赛事取消报名通过接口显示退款金额

subpackages/mine/cancel-registration/cancel-registration.js

@@ -23,14 +23,15 @@ Page({
   data: {
     registrationId: null,
     loading: true,
+    calculating: false,
 
     refundRulesText: '退款规则以赛事说明为准',
 
-    // items: [{ itemKey, projectName, pills: [{ pillKey, label, price, selected }] }]
     items: [],
     selectAll: false,
     selectedCount: 0,
-    refundAmount: '0'
+    refundAmount: '0',
+    refundableAmount: '0'
   },
 
   onLoad(options) {
@@ -54,7 +55,6 @@ Page({
       .then((detail) => {
         const d = detail && typeof detail === 'object' ? detail : {};
         
-        // 检查报名状态，如果已取消（PaymentStatus=3），则提示用户
         const paymentStatus = d.paymentStatus != null ? Number(d.paymentStatus) : null;
         if (paymentStatus === 3) {
           wx.showModal({
@@ -85,17 +85,19 @@ Page({
                   const label = [groupName, gender].filter(Boolean).join(' | ') || groupName || '参赛人';
                   return {
                     pillKey: `i-${idx}-p-${pi}`,
+                    personId: p.id,
                     label,
                     price,
-                    selected: true
+                    selected: false
                   };
                 })
               : [
                   {
                     pillKey: `i-${idx}-g`,
+                    groupId: it.id,
                     label: groupName || '组别',
                     price,
-                    selected: true
+                    selected: false
                   }
                 ];
 
@@ -106,32 +108,16 @@ Page({
           };
         });
 
-        // 使用后端返回的退款金额和规则
         const refundRulesText = d.refundRulesText || d.RefundRulesText || '退款规则以赛事说明为准';
-        const refundAmountFromBackend = d.refundAmount != null ? toNumber(d.refundAmount) : (d.RefundAmount != null ? toNumber(d.RefundAmount) : null);
 
-        // 默认全选
         this.setData({
           items,
-          selectAll: items.length > 0,
+          selectAll: false,
           refundRulesText,
           loading: false
         });
         
-        // 优先使用后端计算的退款金额，否则使用前端计算
-        if (refundAmountFromBackend != null) {
-          const all = [];
-          this.data.items.forEach((it) => it.pills.forEach((p) => all.push(p)));
-          const selected = all.filter((p) => p.selected);
-          const selectAll = all.length > 0 && selected.length === all.length;
-          this.setData({
-            selectedCount: selected.length,
-            selectAll,
-            refundAmount: formatMoney(refundAmountFromBackend)
-          });
-        } else {
-          this.recalc();
-        }
+        this.recalcFromBackend();
       })
       .catch((err) => {
         this.setData({ loading: false, items: [] });
@@ -147,7 +133,7 @@ Page({
       pills: it.pills.map((p) => (p.pillKey === pillKey ? { ...p, selected: !p.selected } : p))
     }));
     this.setData({ items });
-    this.recalc();
+    this.recalcFromBackend();
   },
 
   onToggleAll() {
@@ -157,20 +143,59 @@ Page({
       pills: it.pills.map((p) => ({ ...p, selected: next }))
     }));
     this.setData({ items, selectAll: next });
-    this.recalc();
+    this.recalcFromBackend();
   },
 
-  recalc() {
+  recalcFromBackend() {
     const all = [];
     this.data.items.forEach((it) => it.pills.forEach((p) => all.push(p)));
     const selected = all.filter((p) => p.selected);
-    const sum = selected.reduce((acc, p) => acc + toNumber(p.price, 0), 0);
     const selectAll = all.length > 0 && selected.length === all.length;
+    
     this.setData({
       selectedCount: selected.length,
-      selectAll,
-      refundAmount: formatMoney(sum)
+      selectAll
     });
+
+    if (selected.length === 0) {
+      this.setData({ refundAmount: '0' });
+      return;
+    }
+
+    const personIds = [];
+    const cancelTeams = [];
+    selected.forEach((p) => {
+      if (p.personId) {
+        personIds.push(p.personId);
+      } else if (p.groupId) {
+        cancelTeams.push(`${p.groupId}_team`);
+      }
+    });
+
+    this.setData({ calculating: true });
+    request({
+      path: API.calculateRefundAmount,
+      method: 'POST',
+      needAuth: true,
+      data: {
+        registrationId: this.data.registrationId,
+        cancelType: selectAll ? 0 : 1,
+        personIds: personIds.length > 0 ? personIds : null,
+        cancelTeams: cancelTeams.length > 0 ? cancelTeams : null
+      }
+    })
+      .then((result) => {
+        const r = result && typeof result === 'object' ? result : {};
+        this.setData({
+          calculating: false,
+          refundAmount: formatMoney(r.refundAmount),
+          refundableAmount: formatMoney(r.refundableAmount)
+        });
+      })
+      .catch((err) => {
+        this.setData({ calculating: false });
+        wx.showToast({ title: (err && err.message) || '计算退款金额失败', icon: 'none' });
+      });
   },
 
   onConfirmCancel() {
@@ -188,6 +213,21 @@ Page({
   },
 
   submitCancelRegistration() {
+    const all = [];
+    this.data.items.forEach((it) => it.pills.forEach((p) => all.push(p)));
+    const selected = all.filter((p) => p.selected);
+    const selectAll = all.length > 0 && selected.length === all.length;
+    
+    const personIds = [];
+    const cancelTeams = [];
+    selected.forEach((p) => {
+      if (p.personId) {
+        personIds.push(p.personId);
+      } else if (p.groupId) {
+        cancelTeams.push(`${p.groupId}_team`);
+      }
+    });
+
     wx.showLoading({ title: '提交中...' });
     request({
       path: API.cancelRegistrationRefund,
@@ -195,6 +235,9 @@ Page({
       needAuth: true,
       data: {
         registrationId: this.data.registrationId,
+        cancelType: selectAll ? 0 : 1,
+        personIds: personIds.length > 0 ? personIds : null,
+        cancelTeams: cancelTeams.length > 0 ? cancelTeams : null,
         refundReason: '用户取消报名'
       }
     })
@@ -202,11 +245,9 @@ Page({
         wx.hideLoading();
         wx.showToast({ title: '退款申请已提交', icon: 'success' });
         setTimeout(() => {
-          // 返回上一页并刷新数据
           const pages = getCurrentPages();
           if (pages.length > 1) {
             const prevPage = pages[pages.length - 2];
-            // 如果上一页是 records 页面，通知它刷新
             if (prevPage && prevPage.route && prevPage.route.includes('records')) {
               if (prevPage.initData) {
                 prevPage.initData(true);
@@ -222,4 +263,3 @@ Page({
       });
   }
 });
-

utils/constants.js

@@ -12,6 +12,7 @@ const API = {
   myRegistrationDetail: (registrationId) => `/api/eventclient/my-registration/${registrationId}`,
   apply: '/api/eventclient/apply',
   calculateAmount: '/api/eventclient/calculate-amount',
+  calculateRefundAmount: '/api/eventclient/calculate-refund-amount',
   cancelRegistrationRefund: '/api/eventclient/cancel-registration-refund',
   couponValidate: '/api/eventclient/coupon/validate',
   syncPayment: (registrationId) => `/api/eventclient/sync-payment/${registrationId}`,