// pages/post/post.js
const { forumData } = require('../../utils/data.js')
const { showSuccess, showError } = require('../../utils/util.js')
const learningTracker = require('../../utils/learningTracker.js')

// pages/post/post.js
const userManager = require('../../utils/userManager.js')

Page({
  data: {
    title: '',
    content: '',
    images: [],
    categories: ['数学', '物理', '计算机', '英语', '其他'],
    selectedCategory: 0
  },

  onShow() {
    // 开始跟踪学习时间
    learningTracker.onPageShow('forum')
  },

  onHide() {
    // 停止跟踪学习时间
    learningTracker.onPageHide()
  },

  onUnload() {
    // 记录学习时长
    learningTracker.onPageUnload()
  },

  // 标题输入
  onTitleInput(e) {
    this.setData({ title: e.detail.value })
  },

  // 内容输入
  onContentInput(e) {
    this.setData({ content: e.detail.value })
  },

  // 选择分类
  onCategoryChange(e) {
    this.setData({ selectedCategory: parseInt(e.detail.value) })
  },

  // 选择图片
  onChooseImage() {
    const maxCount = 3 - this.data.images.length
    
    wx.chooseImage({
      count: maxCount,
      sizeType: ['compressed'],
      sourceType: ['album', 'camera'],
      success: (res) => {
        const tempFilePaths = res.tempFilePaths
        const images = this.data.images.concat(tempFilePaths)
        this.setData({ images })
      }
    })
  },

  // 删除图片
  onDeleteImage(e) {
    const index = e.currentTarget.dataset.index
    const images = this.data.images
    images.splice(index, 1)
    this.setData({ images })
  },

  // 发布帖子
  onPublish() {
    const { title, content, images, categories, selectedCategory } = this.data
    
    if (!title.trim()) {
      showError('请输入标题')
      return
    }
    
    if (!content.trim()) {
      showError('请输入内容')
      return
    }
    
    // 获取用户信息
    const userInfo = userManager.getUserInfo()
    const userName = userInfo.nickname || '同学'
    const userAvatar = userInfo.avatar || '/images/avatar-default.png'
    
    // 创建新帖子
    const newPost = {
      id: Date.now(),
      title: title.trim(),
      content: content.trim(),
      author: userName,
      avatar: userAvatar,
      category: categories[selectedCategory],
      views: 0,
      likes: 0,
      comments: 0,
      time: '刚刚',
      images: images,  // 保存图片数组
      isLiked: false,  // 确保默认未点赞
      commentList: []  // 初始化评论列表
    }
    
    // 保存到本地存储
    let posts = wx.getStorageSync('forumPosts') || forumData
    posts.unshift(newPost)
    wx.setStorageSync('forumPosts', posts)
    
    showSuccess('发布成功')
    
    // 返回论坛列表
    setTimeout(() => {
      wx.navigateBack()
    }, 1000)
  }
})