// app.js
App({
  onLaunch() {
    console.log('========================================');
    console.log('🚀 小程序启动');
    console.log('========================================');
    
    // 初始化日志
    const logs = wx.getStorageSync('logs') || []
    logs.unshift(Date.now())
    wx.setStorageSync('logs', logs)

    // 静默登录获取code
    wx.login({
      success: res => {
        console.log('登录成功', res.code)
      },
      fail: err => {
        console.error('登录失败', err)
      }
    })

    // 🔥 强制初始化示例数据（用于演示和答辩）
    // 如果不需要示例数据，注释掉下面这行
    this.initDefaultData()
    
    console.log('========================================');
  },

  onError(error) {
    console.error('小程序错误:', error)
    wx.showToast({
      title: '程序异常,请重试',
      icon: 'none'
    })
  },

  // 初始化默认数据
  initDefaultData() {
    // 检查是否已初始化过示例数据
    const dataInitialized = wx.getStorageSync('demo_data_initialized');
    
    if (!dataInitialized) {
      console.log('[App] 初始化示例数据...');
      this.initDemoData();
      wx.setStorageSync('demo_data_initialized', true);
    }

    // 确保基础数据结构存在
    if (!wx.getStorageSync('userInfo')) {
      wx.setStorageSync('userInfo', {
        nickname: '同学',
        avatar: '/images/avatar-default.png',
        isLogin: false
      })
    }
    if (!wx.getStorageSync('favoriteCourses')) {
      wx.setStorageSync('favoriteCourses', [])
    }
    if (!wx.getStorageSync('favoritePosts')) {
      wx.setStorageSync('favoritePosts', [])
    }
  },

  // 初始化演示数据
  initDemoData() {
    // 1. 初始化GPA课程数据（4个学期，共16门课）
    const gpaCourses = [
      // 2023-1学期
      { id: 1, name: '高等数学A(上)', score: 92, credit: 5, semester: '2023-1' },
      { id: 2, name: '大学英语(一)', score: 88, credit: 3, semester: '2023-1' },
      { id: 3, name: '程序设计基础', score: 95, credit: 4, semester: '2023-1' },
      { id: 4, name: '思想道德与法治', score: 85, credit: 3, semester: '2023-1' },
      
      // 2023-2学期
      { id: 5, name: '高等数学A(下)', score: 90, credit: 5, semester: '2023-2' },
      { id: 6, name: '大学英语(二)', score: 87, credit: 3, semester: '2023-2' },
      { id: 7, name: '数据结构', score: 93, credit: 4, semester: '2023-2' },
      { id: 8, name: '线性代数', score: 89, credit: 3, semester: '2023-2' },
      
      // 2024-1学期
      { id: 9, name: '概率论与数理统计', score: 91, credit: 4, semester: '2024-1' },
      { id: 10, name: '计算机组成原理', score: 88, credit: 4, semester: '2024-1' },
      { id: 11, name: '操作系统', score: 94, credit: 4, semester: '2024-1' },
      { id: 12, name: '大学物理', score: 86, credit: 3, semester: '2024-1' },
      
      // 2024-2学期
      { id: 13, name: '数据库系统', score: 95, credit: 4, semester: '2024-2' },
      { id: 14, name: '计算机网络', score: 92, credit: 4, semester: '2024-2' },
      { id: 15, name: '软件工程', score: 90, credit: 3, semester: '2024-2' },
      { id: 16, name: '人工智能导论', score: 96, credit: 3, semester: '2024-2' }
    ];
    wx.setStorageSync('gpaCourses', gpaCourses);
    console.log('[App] 初始化16门GPA课程数据');

    // 2. 初始化学习时长数据（最近7天）
    const today = new Date();
    const learningData = {
      totalDays: 7,
      totalHours: 24.5,
      dailyRecords: []
    };

    const dailyActivity = {};
    const moduleUsage = {
      course: 8.5,  // 课程中心使用8.5小时
      forum: 6.2,   // 论坛使用6.2小时
      tools: 7.3,   // 工具使用7.3小时
      ai: 2.5       // AI助手使用2.5小时
    };

    // 生成最近7天的学习记录
    for (let i = 6; i >= 0; i--) {
      const date = new Date(today);
      date.setDate(date.getDate() - i);
      const dateStr = this.formatDate(date);
      
      // 每天1-5小时随机学习时长
      const duration = 1 + Math.random() * 4;
      learningData.dailyRecords.push({
        date: dateStr,
        duration: parseFloat(duration.toFixed(1))
      });

      // 每日活跃度（60-180分钟）
      dailyActivity[dateStr] = Math.floor(60 + Math.random() * 120);
    }

    wx.setStorageSync('learning_data', learningData);
    wx.setStorageSync('daily_activity', dailyActivity);
    wx.setStorageSync('module_usage', moduleUsage);
    console.log('[App] 初始化学习时长数据（7天）');

    // 3. 初始化学习画像
    const learningProfile = {
      focus: 85,        // 专注度
      activity: 90,     // 活跃度
      duration: 75,     // 学习时长
      breadth: 88,      // 知识广度
      interaction: 72,  // 互动性
      persistence: 95   // 坚持度
    };
    wx.setStorageSync('learning_profile', learningProfile);
    console.log('[App] 初始化学习画像数据');

    // 4. 初始化课表数据
    const scheduleData = {
      1: { // 周次
        '周一-1-2节': { name: '高等数学', location: '教学楼A101', teacher: '张教授', weeks: '1-16周' },
        '周一-3-4节': { name: '大学英语', location: '教学楼B203', teacher: '李老师', weeks: '1-16周' },
        '周二-1-2节': { name: '数据结构', location: '实验楼C301', teacher: '王教授', weeks: '1-16周' },
        '周二-5-6节': { name: '计算机网络', location: '实验楼C302', teacher: '赵老师', weeks: '1-16周' },
        '周三-3-4节': { name: '数据库系统', location: '教学楼A205', teacher: '刘教授', weeks: '1-16周' },
        '周四-1-2节': { name: '操作系统', location: '实验楼C303', teacher: '陈老师', weeks: '1-16周' },
        '周四-5-6节': { name: '软件工程', location: '教学楼B301', teacher: '杨教授', weeks: '1-16周' },
        '周五-3-4节': { name: '人工智能导论', location: '教学楼A301', teacher: '周教授', weeks: '1-16周' }
      }
    };
    wx.setStorageSync('schedule', scheduleData);
    console.log('[App] 初始化课表数据');

    // 5. 初始化倒计时数据
    const countdowns = [
      { id: 1, name: '期末考试', date: '2025-01-15', color: '#FF6B6B' },
      { id: 2, name: '英语四级', date: '2024-12-14', color: '#4ECDC4' },
      { id: 3, name: '数学竞赛', date: '2024-11-20', color: '#95E1D3' },
      { id: 4, name: '编程大赛', date: '2024-11-30', color: '#F38181' }
    ];
    wx.setStorageSync('countdowns', countdowns);
    console.log('[App] 初始化倒计时数据');

    console.log('[App] ✅ 所有示例数据初始化完成');
  },

  // 格式化日期为 YYYY-MM-DD
  formatDate(date) {
    const year = date.getFullYear();
    const month = String(date.getMonth() + 1).padStart(2, '0');
    const day = String(date.getDate()).padStart(2, '0');
    return `${year}-${month}-${day}`;
  },
  
  globalData: {
    version: '1.0.0'
  }
})