const api = require('../../../../utils/api')
import { getTimestamp } from '../../../../utils/common'
const app = getApp()
Component({
  data: {
    projectList: [],
    pageNo: 1,
    pageSize: 10,
    timestamp: '',
    preloadVisible: true,
    loadMoreType: 'loading',
    loadMoreVisible: false,
    selectedProjectId: ''
  },
  lifetimes: {
    attached () {
      this.getProjectList()
      this.pulldownRefresh = this.selectComponent('#pulldown-refresh')
      this.triggerEvent('getProjectComponent')
    }
  },
  pageLifetimes: {
    show () {
      if (!app.globalData.previewImage) {
        this.backAndRefreshProjectList()
      }
      app.globalData.previewImage = false
    }
  },
  methods: {
    onPageScroll (e) {
      this.pulldownRefresh.onPageScroll(e)
    },
    onReachBottom () {
      this.setData({
        loadMoreVisible: true
      })
      if (this.data.loadMoreType === 'loading') {
        this.data.pageNo += 1
        this.pulldownGetProjectList()
      }
    },
    // 下拉刷新 获取 项目列表接口
    getProjectList () {
      this.setData({
        timestamp: getTimestamp(),
        pageNo: 1,
        preloadVisible: true,
        loadMoreVisible: false,
        projectList: [],
      })
      const para = {
        pageIndex: this.data.pageNo,
        pageSize: this.data.pageSize,
        timestamp: this.data.timestamp,
        searchContent: '',
        firstCategoryCode: ''
      }
      api.getProjectList(para).then(res => {
        this.pulldownRefresh.stopRefresh()
        console.log('获取项目列表', res)
        this.setData({
          projectList: [...res.data],
          preloadVisible: false,
          loadMoreType: res.data.length === 10 ? 'loading' : 'none'
        })
      }).catch(err => {
        this.pulldownRefresh.stopRefresh()
        this.setData({
          projectList: [],
          preloadVisible: false,
          loadMoreType: 'none'
        })
        console.log(err)
      })
    },
    // 上拉加载 项目列表
    pulldownGetProjectList () {
      const para = {
        pageIndex: this.data.pageNo,
        pageSize: this.data.pageSize,
        timestamp: this.data.timestamp,
        searchContent: '',
        firstCategoryCode: ''
      }
      api.getProjectList(para).then(res => {
        console.log('获取项目列表', res)
        this.setData({
          projectList: [...this.data.projectList,...res.data],
          preloadVisible: false,
          loadMoreType: res.data.length === 10 ? 'loading' : 'none'
        })
      }).catch(err => {
        this.setData({
          projectList: [],
          preloadVisible: false,
          loadMoreType: 'none'
        })
        console.log(err)
      })
    },
    // 跳转到项目详情
    navigateToProjectDetail (e) {
      this.data.selectedProjectId = e.detail.projectId
      wx.navigateTo({
        url: `/subpages/discussion/pages/discussionDetail/discussionDetail?type=project&detailId=${e.detail.projectId}&showClassify=show`
      })
    },
     // 跳转搜索页面
     navigateToSearchDiscussion () {
      wx.navigateTo({
        url: `/subpages/discussion/pages/searchDiscussion/searchDiscussion?type=project`
      })
    },
    // 返回刷新项目列表
    backAndRefreshProjectList () {
      if (this.data.selectedProjectId) {
        const para = {
          pageIndex: 1,
          pageSize: 10,
          timestamp: this.data.timestamp,
          searchContent: '',
          firstCategoryCode: '',
          itemId: this.data.selectedProjectId
        }
        api.getProjectList(para).then(res => {
          console.log('详情回列表，刷新列表', res)
          if (res.data.length === 1) {
            this.data.projectList.forEach((item, index) => {
              if (item.id === this.data.selectedProjectId) {
                this.data.projectList.splice(index, 1, res.data[0])
              }
            })
          } else {
            const index = this.data.projectList.findIndex(item => item.id === this.data.selectedProjectId)
            this.data.projectList.splice(index, 1)
          }
          this.setData({
            projectList: this.data.projectList
          })
        }).finally(() => {
          this.data.selectedProjectId = ''
        })
      }
    }
  }
})