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-MM-DD');
  } else if (timeMonth < thisMonth) {
    return time.format('MM-DD');
  } else if (timeDay < thisDay) {
    if (timeDay + 1 == thisDay) {
      return '昨天';
    } else {
      return time.format('MM-DD');
    }
  } 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 == null) {
    return obj;
  }
  let newobj;
  if (obj instanceof Array) {
    newobj = [];
    obj.forEach(e => {
      newobj.push(this.deepCopy(e));
    });
  } else {
    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,
  formatNumber: formatNumber,
};