const moment = require('./moment.min')



const formatTime = date => {
  const time = moment(date)
  const now = moment()

  const timeYear = time.year()
  const timeMonth = time.month() + 1
  const timeDay = time.date()

  const thisYear = now.year()
  const thisMonth = now.month() + 1
  const thisDay = now.date()

  if (timeYear < thisYear) {
    return time.format('YYYY年MM月')
  } else if (timeMonth < thisMonth) {
    return time.format('MM月DD日')
  } else if (timeDay < thisDay) {
    if (timeDay + 1 == thisDay) {
      return '昨天'
    } else {
      return time.format('MM月DD日')
    }
  } else {
    return time.fromNow()
  }
}

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

const navContentHeight = function () {
  //胶囊高度
  const capsuleHeight = wx.getMenuButtonBoundingClientRect().bottom - wx.getMenuButtonBoundingClientRect().top
  //胶囊上边框距顶部距离
  const capsuleTop = wx.getMenuButtonBoundingClientRect().top
  //状态栏高度
  const statusBarHeight = wx.getSystemInfoSync().statusBarHeight
  //药囊上边距状态栏下边的距离，即药囊在导航内容栏中的上下边距
  const capsuleGap = capsuleTop - statusBarHeight
  //导航内容栏的高度动态计算
  const navContentHeight = capsuleGap * 2 + capsuleHeight

  return navContentHeight + statusBarHeight
}

const deepCopy = function (obj) {
  let b1 = typeof obj
  if (b1 != 'object' || (obj instanceof Array) || obj == null) {
    return obj;
  }
  var newobj = {};
  for (var attr in obj) {
    newobj[attr] = this.deepCopy(obj[attr]);
  }
  return newobj;
}

const lastMonth = function (year, month) {
  var lM = month - 1
  var lY = year
  if (lM <= 0) {
    lM += 12
    lY -= 1
  }
  return [lY, lM]
}

module.exports = {
  formatTime: formatTime,
  navContentHeight: navContentHeight,
  deepCopy: deepCopy,
  lastMonth: lastMonth
}