const api = require('../../utils/api')
const media = require('../../utils/media')
const activityUtil = require('../../utils/activity')

function decorate(item) {
  const cover = item.cover || item.poster || ''
  return Object.assign({}, item, {
    coverUrl: cover ? media.absUrl(cover) : ''
  })
}

Page({
  data: {
    list: [],
    loaded: false,
    deleting: false,
    isAdmin: false
  },

  onShow() {
    this.loadPage()
  },

  onPullDownRefresh() {
    this.loadPage().then(() => wx.stopPullDownRefresh())
  },

  loadPage() {
    const profile = api.profile().catch(() => null)
    return Promise.all([api.pastActivities(), profile])
      .then((results) => {
        const isAdmin = !!(results[1] && results[1].isAdmin)
        this.setData({
          list: (results[0] || []).map(decorate),
          loaded: true,
          isAdmin: isAdmin,
          deleting: isAdmin && this.data.deleting
        })
      })
      .catch((error) => {
        this.setData({ loaded: true })
        activityUtil.toast(error)
      })
  },

  openDetail(event) {
    if (this.data.deleting) return
    wx.navigateTo({ url: '/pages/detail/detail?id=' + event.currentTarget.dataset.id })
  },

  onAdd() {
    if (!this.data.isAdmin) return
    wx.navigateTo({ url: '/pages/past-edit/past-edit' })
  },

  onDelete() {
    if (!this.data.isAdmin) return
    if (!this.data.list.length) {
      wx.showToast({ title: '还没有可以删除的活动', icon: 'none' })
      return
    }
    this.setData({ deleting: !this.data.deleting })
  },

  remove(event) {
    if (!this.data.isAdmin) return
    const id = event.currentTarget.dataset.id
    wx.showModal({
      title: '删除这场活动？',
      content: event.currentTarget.dataset.title,
      confirmColor: '#DC2626',
      success: (res) => {
        if (!res.confirm) return
        api
          .removePast(id)
          .then(() => {
            const list = this.data.list.filter((item) => item.id !== id)
            this.setData({ list: list, deleting: list.length > 0 && this.data.deleting })
          })
          .catch(activityUtil.toast)
      }
    })
  },

  togglePin(event) {
    if (!this.data.isAdmin) return
    const dataset = event.currentTarget.dataset
    api
      .pinPast(dataset.id, String(dataset.pinned) !== '1')
      .then(() => this.loadPage())
      .catch(activityUtil.toast)
  }
})