trade-assistant/miniprogram/pages/login/login.js

const app = getApp();
const { authApi } = require('../../utils/api');

Page({
  data: {
    phone: '',
    password: '',
    username: '',
    isRegister: false,
    loading: false,
    error: '',
  },

  onPhoneInput(e) {
    this.setData({ phone: e.detail.value });
  },

  onPasswordInput(e) {
    this.setData({ password: e.detail.value });
  },

  onUsernameInput(e) {
    this.setData({ username: e.detail.value });
  },

  toggleMode() {
    this.setData({
      isRegister: !this.data.isRegister,
      error: '',
    });
  },

  async handleSubmit() {
    const { phone, password, username, isRegister } = this.data;

    if (!phone || !password) {
      this.setData({ error: '请输入手机号和密码' });
      return;
    }

    if (isRegister && !username) {
      this.setData({ error: '请输入用户名' });
      return;
    }

    this.setData({ loading: true, error: '' });

    try {
      if (isRegister) {
        await authApi.register(phone, password, username);
        wx.showToast({ title: '注册成功，请登录', icon: 'success' });
        this.setData({ isRegister: false });
      } else {
        const res = await authApi.login(phone, password);
        app.setToken(res.access_token);
        app.globalData.userInfo = res.user;
        wx.showToast({ title: '登录成功', icon: 'success' });
        setTimeout(() => {
          wx.switchTab({ url: '/pages/index/index' });
        }, 1000);
      }
    } catch (err) {
      this.setData({ error: err.message || '操作失败，请重试' });
    } finally {
      this.setData({ loading: false });
    }
  },

  handleWechatLogin() {
    wx.getUserProfile({
      desc: '用于完善用户资料',
      success: (res) => {
        console.log('微信登录', res.userInfo);
        wx.showToast({ title: '微信登录开发中', icon: 'none' });
      },
      fail: (err) => {
        console.log('微信登录失败', err);
      }
    });
  },
});