import { injectPage } from '@jdmini/api'
const { searchWorksheets } = require('../../utils/api.js')
const { DATA_BASE_URL } = require('../../utils/config.js')

Page(injectPage({})({
  data: {
    dataBaseUrl: DATA_BASE_URL,
    keyword: '',
    history: [],
    hotKeywords: ['字母', '数字', '涂色', '迷宫', '折纸', '形状'],
    worksheets: [],
    page: 1,
    pageSize: 20,
    total: 0,
    hasMore: true,
    loading: false,
    hasSearched: false
  },

  onLoad() {
    this.loadHistory()
  },

  // 加载搜索历史
  loadHistory() {
    try {
      const history = wx.getStorageSync('searchHistory') || []
      this.setData({ history })
    } catch (error) {
      console.error('加载搜索历史失败:', error)
    }
  },

  // 保存搜索历史
  saveHistory(keyword) {
    try {
      let history = wx.getStorageSync('searchHistory') || []

      // 去重
      history = history.filter(h => h !== keyword)
      // 添加到开头
      history.unshift(keyword)
      // 最多保存10条
      if (history.length > 10) {
        history = history.slice(0, 10)
      }

      wx.setStorageSync('searchHistory', history)
      this.setData({ history })
    } catch (error) {
      console.error('保存搜索历史失败:', error)
    }
  },

  // 输入事件
  onInput(e) {
    this.setData({
      keyword: e.detail.value
    })
  },

  // 清除关键词
  clearKeyword() {
    this.setData({
      keyword: '',
      hasSearched: false,
      worksheets: []
    })
  },

  // 执行搜索
  async doSearch() {
    const keyword = this.data.keyword.trim()
    if (!keyword) return

    // 保存搜索历史
    this.saveHistory(keyword)

    this.setData({
      page: 1,
      hasMore: true,
      worksheets: [],
      hasSearched: true
    })

    await this.loadResults()
  },

  // 点击历史或热门关键词搜索
  searchHistory(e) {
    const keyword = e.currentTarget.dataset.keyword
    this.setData({ keyword })
    this.doSearch()
  },

  // 加载搜索结果
  async loadResults() {
    if (this.data.loading) return

    try {
      this.setData({ loading: true })

      const res = await searchWorksheets({
        keyword: this.data.keyword,
        page: this.data.page,
        pageSize: this.data.pageSize
      })

      if (res.success) {
        const newWorksheets = res.data.list || []
        this.setData({
          worksheets: this.data.page === 1 ? newWorksheets : [...this.data.worksheets, ...newWorksheets],
          total: res.data.pagination?.total || 0,
          hasMore: newWorksheets.length >= this.data.pageSize,
          loading: false
        })
      }
    } catch (error) {
      console.error('搜索失败:', error)
      this.setData({ loading: false })
    }
  },

  // 加载更多
  async loadMore() {
    if (this.data.loading || !this.data.hasMore) return

    this.setData({
      page: this.data.page + 1
    })
    await this.loadResults()
  },

  // 清除历史
  clearHistory() {
    wx.showModal({
      title: '提示',
      content: '确定清除搜索历史吗？',
      success: (res) => {
        if (res.confirm) {
          wx.removeStorageSync('searchHistory')
          this.setData({ history: [] })
        }
      }
    })
  },

  // 返回
  goBack() {
    wx.navigateBack()
  },

  // 跳转详情
  goDetail(e) {
    const id = e.currentTarget.dataset.id
    wx.navigateTo({
      url: `/pages/detail/detail?id=${id}`
    })
  }
}))