const { clearSession, refreshMe, requireLogin } = require("../../utils/auth");
const { get } = require("../../utils/api");
const { showError } = require("../../utils/page-helpers");

Page({
  data: { user: null, classes: [], activeClassId: null, activeClassName: "" },

  async onShow() {
    if (!requireLogin()) return;
    try {
      const user = await refreshMe();
      const classRes = await get("/api/classes/");
      const app = getApp();
      const activeClassId = app.globalData.activeClassId;
      const activeMembership = user.memberships?.find((item) => item.class_id === activeClassId) || user.active_membership;
      this.setData({
        user,
        activeClassName: activeMembership?.class_name || "",
        classes: (classRes.items || []).map((item) => ({
          ...item,
          is_active: item.id === activeClassId
        })),
        activeClassId
      });
    } catch (error) {
      showError(error);
    }
  },

  openProfile() {
    wx.navigateTo({ url: "/pages/profile-edit/index" });
  },

  logout() {
    clearSession();
    wx.removeStorageSync("active_class");
    wx.navigateTo({ url: "/pages/bind/index" });
  },

  switchClass(event) {
    const classId = Number(event.currentTarget.dataset.id);
    const classItem = this.data.classes.find((item) => item.id === classId);
    if (!classItem) return;
    wx.setStorageSync("active_class", classItem);
    const app = getApp();
    app.globalData.activeClassId = classItem.id;
    app.globalData.enabledModules = classItem.enabled_modules || null;
    this.setData({
      activeClassId: classItem.id,
      activeClassName: classItem.name,
      classes: this.data.classes.map((item) => ({
        ...item,
        is_active: item.id === classItem.id
      }))
    });
    wx.showToast({ title: "已切换班级", icon: "success" });
  }
});