import AppService from './appService.js'

const uploadImage = (type, count = 9) => {
  return new Promise((presolve, preject) => {
    wx.chooseImage({
      count: count, // 默认9
      sizeType: ['original', 'compressed'], // 可以指定是原图还是压缩图，默认二者都有
      sourceType: ['album', 'camera'], // 可以指定来源是相册还是相机，默认二者都有
      success: function (res) {
        // 返回选定照片的本地文件路径列表，tempFilePath可以作为img标签的src属性显示图片
        const tempFiles = res.tempFiles
        const tempFilePaths = res.tempFilePaths
        const length = res.tempFilePaths.length
        wx.showLoading({
          title: '正在上传中',
          mask: 'true'
        })
        uploadMulti(tempFilePaths, tempFiles, type).then((res) => {
          presolve(res)
        })
      }
    })
  })
}

  // 递归上传多张图片
const uploadMulti = (tempFilePaths, tempFiles) => {
  return new Promise((presolve, preject) => {
    let uploads = []
    tempFilePaths.forEach((item, i) => {
      uploads[i] = new Promise((resolve, reject) => {
        wx.uploadFile({
          url: `${AppService.apiConfig.configurl}/admin/upload`,
          filePath: item,
          name: 'file',
          formData: {},
          success: function (response) {
            console.log(response)
            const data = JSON.parse(response.data)
            console.log(data)
            if (data.code == 0) {
              resolve({ url: data.data })
            } 
          },
          fail: function (err) {
            wx.hideLoading()
            wx.showToast({
              title: '上传照片失败(′⌒`)',
              icon: 'none'
            })
            reject(err)
          }
        })
      })
    })
    Promise.all(uploads).then((res) => {
      //图片上传完成
      let data = []
      res.forEach((item) => {
        console.log(item)
        data.push(item.url)
      })
      presolve(data)
      wx.hideLoading()
    }).catch(err => {
      preject(err)
    })
  })
}

// 判断对象是否为空
const isEmptyObject = function (obj) {
  for (const value in obj) {
    if ({}.hasOwnProperty.call(obj, value)) {
      return false
    }
  }
  return true
}

const formatNumber = n => {
  n = n.toString()
  return n[1] ? n : '0' + n
}

// 获取当前时间
function formatTime(date) {
  var year = date.getFullYear()
  var month = date.getMonth() + 1
  var day = date.getDate()

  var hour = date.getHours()
  var minute = date.getMinutes()
  var second = date.getSeconds()

  return [year, month, day].map(formatNumber).join('-') + ' ' + [hour, minute, second].map(formatNumber).join(':')
}

module.exports = {
  uploadImage: uploadImage,
  isEmptyObject: isEmptyObject,
  formatTime: formatTime
}