ertonglianxibiao/pages/login/login.js

import { injectPage, gatewayHttpClient } from '@jdmini/api'
const api = require('../../utils/api.js')
const defaultAvatarUrl = 'https://mmbiz.qpic.cn/mmbiz/icTdbqWNOwNRna42FI242Lcia07jQodd2FJGIYQfG0LAJGFxM4FbnQP6yfMxBgJ0F3YRqJCJ1aPAK2dQagdusBZg/0'

Page(injectPage({})({
  data: {
    avatarUrl: defaultAvatarUrl,
    nickname: '',
    isLoading: false,
    loginSuccess: false,
    btnText: '完成登录',
    btnIcon: '✓',
    canSubmit: false
  },

  onLoad(options) {
    // 检查是否已登录
    const userId = wx.getStorageSync('userId');
    if (userId) {
      // 已登录，检查是否有返回页面
      this.navigateBack();
      return;
    }

    // 保存来源页面信息
    if (options.from) {
      this.setData({
        fromPage: options.from
      });
    }

    // 设置默认头像并检查提交状态
    this.checkCanSubmit();
  },

  // 选择头像
  onChooseAvatar(e) {
    const { avatarUrl } = e.detail;
    this.setData({
      avatarUrl: avatarUrl
    }, () => {
      this.checkCanSubmit();
    });
  },

  // 输入昵称
  onNicknameInput(e) {
    this.setData({
      nickname: e.detail.value
    }, () => {
      this.checkCanSubmit();
    });
  },

  // 检查是否可以提交
  checkCanSubmit() {
    const { avatarUrl, nickname } = this.data;
    // 检查是否选择了自定义头像（非默认头像）和填写了昵称
    const hasCustomAvatar = avatarUrl && avatarUrl !== defaultAvatarUrl;
    const hasNickname = nickname && nickname.trim().length > 0;
    const canSubmit = hasCustomAvatar && hasNickname;
    this.setData({
      canSubmit: canSubmit
    });
  },

  // 处理登录
 async handleLogin() {
    const { avatarUrl, nickname, isLoading } = this.data;

    if (isLoading) {
      return;
    }

    // 检查头像是否已授权（是否选择了非默认头像）
    const hasCustomAvatar = avatarUrl && avatarUrl !== defaultAvatarUrl;

    // 检查昵称是否已填写
    const hasNickname = nickname && nickname.trim().length > 0;

    // 验证授权状态
    if (!hasCustomAvatar && !hasNickname) {
      wx.showToast({
        title: '请先授权头像，再点授权昵称',
        icon: 'none',
        duration: 2500
      });
      return;
    }

    if (!hasCustomAvatar) {
      wx.showToast({
        title: '头像未授权',
        icon: 'none',
        duration: 2000
      });
      return;
    }

    if (!hasNickname) {
      wx.showToast({
        title: '昵称未授权',
        icon: 'none',
        duration: 2000
      });
      return;
    }

    // 开始登录
    this.setData({
      isLoading: true,
      btnText: '登录中...',
      btnIcon: '⏳'
    });
    
    // 获取 app.js 中通过 waitLogin 已经获取的第三方登录信息
    const app = getApp();
    const openid = app.globalData.openid;
    const wxUserInfo = app.globalData.wxUserInfo || wx.getStorageSync('jdwx-userinfo');

    if (!openid && !wxUserInfo) {
      this.handleLoginError('获取登录信息失败，请重启小程序');
      return;
    }
    //上传头像到图片服务
    
    const JDavatarUrl= await gatewayHttpClient.uploadAvatar(avatarUrl)
    
    console.log(JDavatarUrl.data)
    // 使用 openid 进行登录
    const finalOpenid = openid || wxUserInfo.openId;
    this.performLogin(finalOpenid, nickname.trim(), JDavatarUrl.data);
  },

  // 执行登录请求
  performLogin(openid, nickname, avatarUrl) {
    // 获取邀请人ID
    const inviterId = wx.getStorageSync('inviterId') || getApp().globalData.inviterId || null

    // 调用后端登录接口
    api.userLogin(openid, nickname, avatarUrl, inviterId).then(result => {
      // 清除邀请人ID（只在注册时使用一次）
      wx.removeStorageSync('inviterId')

      // 保存用户信息
      wx.setStorageSync('userId', result.data.user.id);
      wx.setStorageSync('token', result.data.token);
      wx.setStorageSync('userInfo', {
        nickname: result.data.user.nickname,
        avatar: result.data.user.avatar,
        points: result.data.user.points
      });

      // 更新按钮状态
      this.setData({
        isLoading: false,
        loginSuccess: true,
        btnText: '登录成功',
        btnIcon: '✓'
      });

      // 延迟跳转
      setTimeout(() => {
        this.navigateBack();
      }, 1000);

    }).catch(err => {
      console.error('登录失败', err);
      this.handleLoginError(err.message || '登录失败，请重试');
    });
  },

  // 处理登录错误
  handleLoginError(message) {
    wx.showToast({
      title: message,
      icon: 'none'
    });

    this.setData({
      isLoading: false,
      btnText: '完成登录',
      btnIcon: '✓'
    });
  },

  // 导航返回
  navigateBack() {
    // 检查是否有存储的返回信息
    const returnTo = wx.getStorageSync('returnTo');

    if (returnTo) {
      // 清除存储的返回信息
      wx.removeStorageSync('returnTo');

      // 根据返回类型进行跳转
      if (returnTo.type === 'switchTab') {
        wx.switchTab({
          url: returnTo.url
        });
      } else if (returnTo.type === 'redirectTo') {
        wx.redirectTo({
          url: returnTo.url
        });
      } else {
        wx.navigateTo({
          url: returnTo.url
        });
      }
    } else if (this.data.fromPage) {
      // 使用URL参数中的来源页面
      wx.navigateBack();
    } else {
      // 默认返回首页
      wx.switchTab({
        url: '/pages/index/index'
      });
    }
  }
}))