// pages/task-list/task-list.js
const app = getApp();
const api = require('../../utils/api.js');

Page({
  data: {
    childId: 0,
    childName: '',
    dateType: 'today', // today, week, month
    statusFilter: 'all', // all, pending, completed, overdue
    tasks: [],
    filteredTasks: [],
    loading: false,
    page: 1,
    hasMore: true
  },

  onLoad(options) {
    const childId = options.childId || 0;
    const childName = options.childName || '';
    this.setData({ childId, childName });
    wx.setNavigationBarTitle({ title: childName ? `${childName}的任务` : '任务列表' });
  },

  onShow() {
    this.loadTasks();
  },

  // 加载任务列表
  loadTasks(refresh = false) {
    if (refresh) {
      this.setData({ page: 1, hasMore: true });
    }
    
    this.setData({ loading: true });
    
    // 模拟数据
    const mockTasks = [
      {
        id: 1,
        title: '写作业',
        description: '完成数学和语文作业',
        points: 2,
        deadline: '2026-03-31 20:00',
        status: 'pending',
        category: '学习',
        needReview: true
      },
      {
        id: 2,
        title: '练琴',
        description: '练习钢琴30分钟',
        points: 3,
        deadline: '2026-03-31 19:00',
        status: 'completed',
        category: '艺术',
        needReview: false
      },
      {
        id: 3,
        title: '阅读20分钟',
        description: '阅读课外书籍',
        points: 2,
        deadline: '2026-03-31 21:00',
        status: 'overdue',
        category: '学习',
        needReview: true
      }
    ];

    setTimeout(() => {
      this.setData({
        tasks: mockTasks,
        filteredTasks: mockTasks,
        loading: false
      });
      this.applyFilters();
    }, 500);
  },

  // 应用筛选
  applyFilters() {
    let filtered = this.data.tasks;
    
    // 按状态筛选
    if (this.data.statusFilter !== 'all') {
      filtered = filtered.filter(task => task.status === this.data.statusFilter);
    }
    
    // 按日期筛选
    const now = new Date();
    if (this.data.dateType === 'today') {
      filtered = filtered.filter(task => {
        const deadline = new Date(task.deadline);
        return deadline.toDateString() === now.toDateString();
      });
    } else if (this.data.dateType === 'week') {
      const weekAgo = new Date(now.getTime() - 7 * 24 * 60 * 60 * 1000);
      filtered = filtered.filter(task => {
        const deadline = new Date(task.deadline);
        return deadline >= weekAgo;
      });
    }
    
    this.setData({ filteredTasks: filtered });
  },

  // 切换日期类型
  onDateTypeChange(e) {
    this.setData({ dateType: e.currentTarget.dataset.type });
    this.applyFilters();
  },

  // 切换状态筛选
  onStatusFilterChange(e) {
    this.setData({ statusFilter: e.currentTarget.dataset.status });
    this.applyFilters();
  },

  // 任务点击
  onTaskTap(e) {
    const taskId = e.currentTarget.dataset.id;
    wx.navigateTo({
      url: `/pages/task-detail/task-detail?id=${taskId}`
    });
  },

  // 创建任务
  onCreateTask() {
    wx.navigateTo({
      url: `/pages/task-create/task-create?childId=${this.data.childId}`
    });
  },

  // 下拉刷新
  onPullDownRefresh() {
    this.loadTasks(true);
    wx.stopPullDownRefresh();
  },

  // 加载更多
  onReachBottom() {
    if (this.data.hasMore && !this.data.loading) {
      this.loadMoreTasks();
    }
  },

  loadMoreTasks() {
    // 实现加载更多逻辑
  }
});