export function isNull(o) {
	if(o === 0 || o === "0"){
		return false;
	}
	if(o == "undefined" || o == null || o == ""){
		return true;
	}
	return false;
}
export function isPhone(o) {
	if(/^1[23456789]\d{9}$/.test(o)){
		return true;
	}
	return false;
}
export function isMail(o) {
	if(/^([a-z0-9A-Z]+[-|\.]?)+[a-z0-9A-Z]@([a-z0-9A-Z]+(-[a-z0-9A-Z]+)?\.)+[a-zA-Z]{2,}$/.test(o)){
		return true;
	}
	return false;
}
export function isNumber(value) {
  return !isNaN(parseFloat(value)) && isFinite(value)
}
export function isLetter(o) {
	if(/^[A-Za-z]+$/.test(o)){
		return true;
	}
	return false;
}
export function isNumberOrLetter(o) {
	if(/^[A-Za-z0-9]+$/.test(o)){
		return true;
	}
	return false;
}

// 日期格式化
export function parseTime(time, pattern) {
  if (arguments.length === 0 || !time) {
    return null
  }
  const format = pattern || '{y}-{m}-{d} {h}:{i}:{s}'
  let date
  if (typeof time === 'object') {
    date = time
  } else {
    if ((typeof time === 'string') && (/^[0-9]+$/.test(time))) {
      time = parseInt(time)
    } else if (typeof time === 'string') {
      time = time.replace(new RegExp(/-/gm), '/').replace('T', ' ').replace(new RegExp(/\.[\d]{3}/gm), '');
    }
    if ((typeof time === 'number') && (time.toString().length === 10)) {
      time = time * 1000
    }
    date = new Date(time)
  }
  const formatObj = {
    y: date.getFullYear(),
    m: date.getMonth() + 1,
    d: date.getDate(),
    h: date.getHours(),
    i: date.getMinutes(),
    s: date.getSeconds(),
    a: date.getDay()
  }
  const time_str = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => {
    let value = formatObj[key]
    // Note: getDay() returns 0 on Sunday
    if (key === 'a') { return ['日', '一', '二', '三', '四', '五', '六'][value] }
    if (result.length > 0 && value < 10) {
      value = '0' + value
    }
    return value || 0
  })
  return time_str
}

export function formatDate(time, option) {
  if (('' + time).length === 10) {
    time = parseInt(time) * 1000
  } else {
    time = +time
  }
	
	if (option) {
	  return parseTime(time, option)
	}
	
  const d = new Date(time)
  const now = Date.now()

  const diff = (now - d) / 1000

  if (diff < 30) {
    return '刚刚'
  } else if (diff < 3600) {
    // less 1 hour
    return Math.ceil(diff / 60) + '分钟前'
  } else if (diff < 3600 * 24) {
    return Math.ceil(diff / 3600) + '小时前'
  } else if (diff < 3600 * 24 * 2) {
    return '1天前'
  } else if (diff < 3600 * 24 * 3) {
    return '2天前'
  } else if (diff < 3600 * 24 * 4) {
    return '3天前'
  } else if (diff < 3600 * 24 * 5) {
    return '4天前'
  } else if (diff < 3600 * 24 * 6) {
    return '5天前'
  } else if (diff < 3600 * 24 * 7) {
    return '6天前'
  } else if (diff < 3600 * 24 * 8) {
    return '7天前'
  }
  if(diff < 3600 * 24 * 365) {
    return (
			(d.getMonth()*1 + 1) +
      '月' +
      d.getDate() +
      '日'
    )
  } else {
		  return (
		    d.getFullYear() +
		    '年' +
		    (d.getMonth()*1 + 1) +
		    '月'
		  )
	}
}

export function formatTime(time, option) {
  if (('' + time).length === 10) {
    time = parseInt(time) * 1000
  } else {
    time = +time
  }
	
	if (option) {
    return parseTime(time, option)
  }
	
  const d = new Date(time)
  const now = Date.now()

  const diff = (now - d) / 1000

	return (
		d.getFullYear() +
		'-' +
		((d.getMonth()*1 + 1) + "").padStart(2,0) +
		'-' +
		(d.getDate() + '').padStart(2,0) + 
		' ' +
		(d.getHours() + '').padStart(2,0) +
		':' +
		(d.getMinutes() + '').padStart(2,0) +
		':' +
		(d.getSeconds() + '').padStart(2,0)
	)
}

// number：要格式化的数字,
// decimals：保留几位小数, 默认0位
// dec_point：小数点符号, 默认 .
// thousands_sep：千分位符号 默认 ，
// tail_add: 小数点后面数据是否添加0补足位数， 默认空字符
// null_default: 如果为空的值, 默认空字符
function numberFormat(number, decimals, dec_point, thousands_sep, tail_add="", null_default="") {
  number = (number + '').replace(/[^0-9+-Ee.]/g, '');
  var n = !isFinite(+number) ? 0 : +number,
      prec = !isFinite(+decimals) ? 0 : Math.abs(decimals),
      sep = (typeof thousands_sep === 'undefined') ? ',' : thousands_sep,
      dec = (typeof dec_point === 'undefined') ? '.' : dec_point,
      s = '',
      toFixedFix = function (n, prec) {
          var k = Math.pow(10, prec);
          return '' + Math.round(n * k) / k;
      };

  s = (prec ? toFixedFix(n, prec) : '' + Math.round(n)).split('.');
  var re = /(-?\d+)(\d{3})/;
  if(sep.length > 0){
    while (re.test(s[0])) {
      s[0] = s[0].replace(re, "$1" + sep + "$2");
    }
  }
  if ((s[1] || '').length < prec) {
      s[1] = s[1] || '';
      s[1] += new Array(prec - s[1].length + 1).join(tail_add);
  }
  if((s[1] || '').length == 0){
    return s[0]
  }
  return s.join(dec);
}
// number：要格式化的数字,
// decimals：保留几位小数, 默认0位
// dec_point：小数点符号, 默认 .
// thousands_sep：千分位符号 默认 ，
// tail_add: 小数点后面数据是否添加0补足位数， 默认空字符
// null_default: 如果为空的值, 默认空字符
export function formatNumber(number, decimals, tail_add, thousands_sep, dec_point, null_default) {
  if(isNull(number) || isNull(String(number).trim())){return null_default;}
  if(!isNumber(String(number).trim())){return number;}
  number = String(number).trim();
  return numberFormat(number, decimals, tail_add, thousands_sep, dec_point, null_default);
}
// thousands_sep：千分位符号 默认空字符
export function formatPercent(number, decimals, tail_add, thousands_sep="", dec_point, null_default) {
  if(isNull(number) || isNull(String(number).trim().replaceAll(",", ""))){return null_default;}
  if(!isNumber(String(number).trim().replaceAll(",", ""))){return number;}
  number = String(number).trim().replaceAll(",", "");
  let value = numberFormat(number*100, decimals, tail_add, thousands_sep, dec_point, null_default);
  if(value){
    return value + "%";
  }
  return "";
}

// get brower
export function GetCurrentBrowser () {
  let ua = navigator.userAgent.toLocaleLowerCase()
  let browserType = null
  if (ua.match(/msie/) != null || ua.match(/trident/) != null) {
    browserType = 'IE'
  } else if (ua.match(/firefox/) != null) {
    browserType = 'firefox'
  } else if (ua.match(/ucbrowser/) != null) {
    browserType = 'UC'
  } else if (ua.match(/opera/) != null || ua.match(/opr/) != null) {
    browserType = 'opera'
  } else if (ua.match(/bidubrowser/) != null) {
    browserType = 'baidu'
  } else if (ua.match(/metasr/) != null) {
    browserType = 'sougou'
  } else if (ua.match(/tencenttraveler/) != null || ua.match(/qqbrowse/) != null) {
    browserType = 'QQ'
  } else if (ua.match(/maxthon/) != null) {
    browserType = 'maxthon'
  } else if (ua.match(/chrome/) != null) {
    var is360 = _mime('type', 'application/vnd.chromium.remoting-viewer')
    if (is360) {
      browserType = '360'
    } else {
      browserType = 'chrome'
    }
  } else if (ua.match(/safari/) != null) {
    browserType = 'Safari'
  } else {
    browserType = 'others'
  }
  return browserType
}
 
function _mime (option, value) {
  var mimeTypes = navigator.mimeTypes
  for (var mt in mimeTypes) {
    if (mimeTypes[mt][option] === value) {
      return true
    }
  }
  return false
}
 
// get os
export function GetOs () {
  let sUserAgent = navigator.userAgent.toLocaleLowerCase()
  let isWin = (navigator.platform.toLocaleLowerCase() == 'win32') || (navigator.platform.toLocaleLowerCase() === 'windows')
  let isMac = (navigator.platform.toLocaleLowerCase() === 'mac68k') || (navigator.platform.toLocaleLowerCase() === 'macppc') 
    || (navigator.platform === 'macintosh') || (navigator.platform.toLocaleLowerCase() === 'macintel')
  if (isMac) return 'Mac'
  var isUnix = (navigator.platform === 'x11') && !isWin && !isMac
  if (isUnix) return 'Unix'
  var isLinux = (String(navigator.platform.toLocaleLowerCase()).indexOf('linux') > -1)
  if (isLinux) return 'Linux'
  if (isWin) {
    var isWin2K = sUserAgent.indexOf('windows nt 5.0') > -1 || sUserAgent.indexOf('windows 2000') > -1
    if (isWin2K) return 'Win2000'
    var isWinXP = sUserAgent.indexOf('windows nt 5.1') > -1 || sUserAgent.indexOf('windows xp') > -1
    if (isWinXP) return 'WinXP'
    var isWin2003 = sUserAgent.indexOf('windows nt 5.2') > -1 || sUserAgent.indexOf('windows 2003') > -1
    if (isWin2003) return 'Win2003'
    var isWinVista = sUserAgent.indexOf('windows nt 6.0') > -1 || sUserAgent.indexOf('windows vista') > -1
    if (isWinVista) return 'WinVista'
    var isWin7 = sUserAgent.indexOf('windows nt 6.1') > -1 || sUserAgent.indexOf('windows 7') > -1
    if (isWin7) return 'Win7'
    var isWin8 = sUserAgent.indexOf('windows nt 6.2') > -1 || sUserAgent.indexOf('windows 8') > -1
    if (isWin8) return 'Win8'
    var isWin10 = sUserAgent.indexOf('windows nt 10.0') > -1 || sUserAgent.indexOf('windows nt 6.4') > -1 || sUserAgent.indexOf('windows 10') > -1
    if (isWin10) return 'Win10'
    var isSimulator = sUserAgent.indexOf('linux') > -1 && sUserAgent.indexOf('android') > -1
    if (isSimulator) return 'Win手机模拟器'
    return navigator.platform
  }
  if (sUserAgent.indexOf('android') > -1) return 'Android'
  if (sUserAgent.indexOf('iphone') > -1) return 'iPhone'
  if (sUserAgent.indexOf('symbianos') > -1) return 'SymbianOS'
  if (sUserAgent.indexOf('windows phone') > -1) return 'Windows Phone'
  if (sUserAgent.indexOf('ipad') > -1) return 'iPad'
  if (sUserAgent.indexOf('ipod') > -1) return 'iPod'
  return navigator.platform
}

export function getRandom(len){
	let data = Math.random() + "";
	let index = 2;
	while(data[index] == 0){
		index++;
	}
	return data.substr(index, len);
}

export function getLongRandom(len){
	if(len <= 16){
		return getRandom(len)
	}
	let data = Math.random() + "";
	let index = 2;
	while(data[index] == 0){
		index++;
	}
	return parseTime(Date.now(), '{y}{m}{d}{h}{i}{s}') + "" + data.substr(index, len-16);
}

export function moveInArray(array, fromIndex, toIndex) {
  const element = array.splice(fromIndex, 1)[0];
  array.splice(toIndex, 0, element);
}

export function jsonCharBigInt(s){
	if(typeof s !== 'string'){
		return s
	}
	let re = /([\\]?['|"]{1})(\w+[\\]?['|"]{1}[ |\n|r|\t]*:[ |\n|r|\t]*)([-]?\d{15,})/g
	return s.replaceAll(re, "$1$2$1$3$1")
}

export function jsonParse(s){
	if(typeof s !== 'string'){
		return s
	}
	let re = /([\\]?['|"]{1})(\w+[\\]?['|"]{1}[ |\n|r|\t]*:[ |\n|r|\t]*)([-]?\d{15,})/g
	return JSON.parse(s.replaceAll(re, "$1$2$1$3$1"))
}