chore: establish V1.1 recovery baseline

2026-09-09 22:05:00 +08:00
commit b46b48eb33
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+/**
+ * 公益活动列表页 U31
+ *
+ * 重构要点（遵循 AGENTS.md 不变量）：
+ *   - 数据：ActivityStore.fetchActivities / loadMoreActivities（游标分页）
+ *   - 列表项：ui-activity-card 组件，"公益免费"为主视觉标识（AGENTS 第 1 条：用户永久免费）
+ *   - 跳转：点击卡片 → activity-detail，不在列表页处理报名
+ *   - 单向意向保密：本页不接入互选意向提交（仅在 activity-matches 页由用户主动操作，AGENTS 第 6 条）
+ *   - 下拉刷新 + onReachBottom 加载更多
+ */
+const { activityStore, appStore, authStore } = require('../../stores');
+const { to } = require('../../constants');
+
+Page({
+  data: {
+    activities: [],
+    loading: false,
+    loadingMore: false,
+    hasMore: true,
+    firstLoaded: false,
+    /** @type {{title:string, description:string, illustration:string, actions:Array}} */
+    emptyConfig: {
+      title: '暂无进行中的活动',
+      description: '近期暂无报名中的公益活动，请稍后再来',
+      illustration: 'activity',
+      actions: [
+        { text: '我的活动', event: 'my', variant: 'secondary' },
+      ],
+    },
+  },
+
+  onLoad() {
+    if (!authStore.state.isLoggedIn) return;
+    this._unsub = activityStore.bindToPage(this, {
+      activities: 'activities',
+      activitiesHasMore: 'activitiesHasMore',
+    });
+    this.fetchActivities(true);
+  },
+
+  onShow() {
+    if (!authStore.state.isLoggedIn) return;
+    // 从活动详情返回后，若列表为空则刷新（避免详情页报名后列表不同步）
+    if (this.data.firstLoaded && this.data.activities.length === 0) {
+      this.fetchActivities(true);
+    }
+  },
+
+  onUnload() {
+    if (this._unsub) this._unsub();
+  },
+
+  /** 首次或下拉刷新拉取活动列表 */
+  async fetchActivities(first = false) {
+    if (this.data.loading) return;
+    this.setData({ loading: true });
+    try {
+      await activityStore.fetchActivities();
+      this.setData({
+        loading: false,
+        firstLoaded: true,
+        hasMore: activityStore.state.activitiesHasMore,
+      });
+    } catch (err) {
+      this.setData({ loading: false, firstLoaded: true });
+      appStore.toastError(err, '加载活动失败');
+    }
+  },
+
+  /** 加载更多（onReachBottom 触发） */
+  async loadMore() {
+    if (this.data.loadingMore || !this.data.hasMore) return;
+    this.setData({ loadingMore: true });
+    try {
+      await activityStore.loadMoreActivities();
+      this.setData({
+        loadingMore: false,
+        hasMore: activityStore.state.activitiesHasMore,
+      });
+    } catch (err) {
+      this.setData({ loadingMore: false });
+      appStore.toastError(err, '加载更多失败');
+    }
+  },
+
+  onPullDownRefresh() {
+    this.fetchActivities(true).then(() => {
+      wx.stopPullDownRefresh();
+    });
+  },
+
+  onReachBottom() {
+    this.loadMore();
+  },
+
+  /** 点击活动卡片 → 跳转详情 */
+  onActivityTap(e) {
+    const activityId = e.detail.activityId;
+    if (!activityId) return;
+    wx.navigateTo({ url: to.activityDetail(activityId) });
+  },
+
+  /** 空状态：去我的活动 */
+  onEmptyAction(e) {
+    const { event } = e.detail;
+    if (event === 'my') {
+      wx.navigateTo({ url: '/pages/my-activities/my-activities' });
+    }
+  },
+
+  /** 顶部"我的活动"入口 */
+  onMyActivities() {
+    wx.navigateTo({ url: '/pages/my-activities/my-activities' });
+  },
+});