/***
 * 扩展String对象
 */
;(function(){

    String.is = function(obj){
        return Object.prototype.toString.call(obj) == "[object String]";
    }

    String.prototype.startWith = function(str){
        if(str==undefined) return false;
        if(str.length > this.length) return false;
        for (let i = 0; i < str.length; i++) {
            if(str.charCodeAt(i)!=this.charCodeAt(i)){
                return false;
            }
        }
        return true;
    }

    String.prototype.endWith = function(str){
        if(str==undefined) return false;
        if(str.length > this.length) return false;
        var j = this.length - str.length;
        for (let i = 0; i < str.length; i++) {
            if(str.charCodeAt(i)!=this.charCodeAt(i+j)){
                return false;
            }
        }
        return true;
    }

})();

/**
 * 扩展Number对象
 */
;(function(){
    Number.is = function(obj){
        return Object.prototype.toString.call(obj) == "[object Number]";
    }

    Number.format = function(num,fmt){
        const sign = num < 0 ? '-' : '';
        const absNum = Math.abs(num);
        var fmts = fmt.split(".");
        var format = {
            int:fmts[0].split("").reverse(),
            scale:fmts[1]!=undefined?fmts[1].split(""):undefined
        }
        var numsp = (absNum+"").split(".");
        var numinfo = {
            int:numsp[0].split("").reverse(),
            scale:numsp[1]!=undefined?numsp[1].split(""):undefined
        }
        var res = {
            int:[],
            scale:undefined
        }
        var ni = 0;
        for (var i = 0; i < format.int.length; i++) {
            var item = format.int[i];
            if(item=="#" && ni < numinfo.int.length){
                res.int.push(numinfo.int[ni]);
                ni++;
            }else if(item=="0"){
                if(ni < numinfo.int.length){
                    res.int.push(numinfo.int[ni]);
                    ni++;
                }else{
                    res.int.push(item); 
                }
            }else if(item==","){
                if(ni < numinfo.int.length){
                    if(ni==numinfo.int.length-1 && numinfo.int[ni]=="-"){
                        continue;
                    }
                    res.int.push(",");
                }else{
                    continue;
                }
            }else if(item!="#"){
                res.int.push(item);
            }
        }

        if(format.scale!=undefined){
            res.scale = [];
            for (var j = 0; j < format.scale.length; j++) {
                var item = format.scale[j];
                if((item=="0" || item=="#") && numinfo.scale!=undefined && j < numinfo.scale.length){
                    res.scale.push(numinfo.scale[j]);
                }else if(item!="#"){
                    res.scale.push(item);
                }
            }

            var numL = 0;
            for (var k = 0; k < res.scale.length; k++) {
                var item = res.scale[k];
                if(/\b/.test(item)){
                    numL++;
                }
            }

            if(numinfo.scale!=undefined && numinfo.scale.length > numL){
                var nz = res.scale[numL-1];
                res.scale[numL-1] = parseInt(numinfo.scale[numL])>=5?parseInt(nz)+1:nz;
            }
        }
        var reStr = "";
        reStr += res.int.reverse().join("");
        if(res.scale!=undefined){
            reStr+= ".";
            reStr+= res.scale.join("");
        }
        //return reStr.replace("-,", "-");
        return sign+reStr;
    }

    // Number.prototype.format = function(fmt){
    //     if(fmt==undefined) throw new Error("参数格式化表达式不能为空！");
    //     return Number.format(this,fmt);
    // }

    Number.parse = function(str){
        if(str==undefined || Number.is(str)) return str;
        str += "";
        if(/^-?\d+[\.\d]*$/.test(str)){
            return new Number(str);
        }
        var sps = str.split("");
        var res = [];
        for (var i = 0; i < sps.length; i++) {
            var item = sps[i];
            if(item=="-" || item=="." || /[0-9]/.test(item)){
                res.push(item);
            }
        }
        return new Number(res.join(""));
    }
})();

/**
 * 扩展日期对象
 */
;(function(){
    Date.SECOND = {
        MINUTES:60000,
        HOURS:3600000,
        DAY:86400000,
        WEEK:604800000,
    }

    Date.Dictionary = {
        Holiday:{
            "0101":"元旦",
            "0214":"情人节",
            "0308":"妇女节",
            "0312":"植树节",
            "0315":"消费者权益日",
            "0401":"愚人节",
            "0501":"劳动节",
            "0504":"青年节",
            "0512":"护士节",
            "0601":"儿童节",
            "0701":"建党节",
            "0801":"建军节",
            "0910":"教师节",
            "0928":"孔子诞辰",
            "1001":"国庆节",
            "1006":"老人节",
            "1024":"联合国日",
            "1224":"平安夜",
            "1225":"圣诞节",
        },
        LunarHoliday:{
            "0101":"春节",
            "0115":"元宵节",
            "0505":"端午节",
            "0707":"七夕情人节",
            "0715":"中元节",
            "0815":"中秋节",
            "0909":"重阳节",
            "1208":"腊八节",
            "1224":"小年"
        },
        Week:{
            "0" : "日",         
            "1" : "一",         
            "2" : "二",         
            "3" : "三",         
            "4" : "四",         
            "5" : "五",         
            "6" : "六"
        },
        timeDistance:{
            yesterday:"昨天",
            daysAgo:"{0}天前",
            hoursAgo:"{0}小时前",
            minutesAgo:"{0}分钟前",
            justNow:"刚刚"
        }
    }

  Date.is = function(obj){
      return Object.prototype.toString.call(obj) == "[object Date]";
  }

  Date.valueOf = function(val,fmt){
    if(val == undefined) return;
    if(Date.is(val)){
       return val;
    }
    if(String.is(val)){
       if (/^\d+$/.test(val)) {
           return new Date(parseInt(val));
       }else if(fmt!=undefined){
           var fmts = fmt.split("");
           var conf = {
               y:{start:undefined,end:undefined},
               M:{start:undefined,end:undefined},
               d:{start:undefined,end:undefined},
               H:{start:undefined,end:undefined},
               h:{start:undefined,end:undefined},
               m:{start:undefined,end:undefined},
               s:{start:undefined,end:undefined},
            };
            for (var i = 0; i < fmts.length; i++) {
                var item = conf[fmts[i]];
                if(item!=undefined){
                    if(item.start==undefined){
                        item.start = i;
                    }else{
                        item.end = i;
                    }
                }
            }
           var keys = Object.keys(conf);
           var parse = {};
           for (var j = 0; j < keys.length; j++) {
              var key = keys[j];
              if(conf[key].start!=undefined && conf[key].end!=undefined){
                 parse[key] = parseInt(val.substr(conf[key].start,conf[key].end+1));
              } 
           }
           return new Date(parse.y||1975,(parse.M||1)-1,parse.d||1,parse.H||parse.h||0,parse.m||0,parse.s||0);
       }else{
           return new Date(val.replace(/-/g, "/"));
       }
    }else if(Number.is(val)){
       return new Date(val);
    }
    return undefined;
  }



  Date.prototype.format = function(fmt){
    fmt = fmt || "yyyy-MM-dd HH:mm:ss";
    var o = {         
      "M+" : this.getMonth()+1, //月份         
      "d+" : this.getDate(), //日         
      "h+" : this.getHours()%12 == 0 ? 12 : this.getHours()%12, //小时         
      "H+" : this.getHours(), //小时         
      "m+" : this.getMinutes(), //分         
      "s+" : this.getSeconds(), //秒         
      "q+" : Math.floor((this.getMonth()+3)/3), //季度         
      "S" : this.getMilliseconds() //毫秒         
      };         
      if(/(y+)/.test(fmt)){         
          fmt=fmt.replace(RegExp.$1, (this.getFullYear()+"").substr(4 - RegExp.$1.length));         
      }                  
      for(var k in o){         
          if(new RegExp("("+ k +")").test(fmt)){         
              fmt = fmt.replace(RegExp.$1, (RegExp.$1.length==1) ? (o[k]) : (("00"+ o[k]).substr((""+ o[k]).length)));         
          }         
      }         
      return fmt; 
  }

  Date.prototype.toString = function(){
    return this.format();
  }

  Date.prototype.getMonthInfo = function(){
    return {
       first:new Date(this.getFullYear(),this.getMonth(),1),
       last:new Date(this.getFullYear(),this.getMonth()+1,0),
       month:this.getMonth(),
       name:this.format("yyyy-MM"),
       monthIndex:this.getMonthIndex()
    }
  }

  Date.prototype.getMonthIndex = function(){
     return parseInt(this.format("yyyyMM"));
  }

  Date.prototype.getYearInfo = function(){
    return {
       first:new Date(this.getFullYear(),0,1),
       last:new Date(this.getFullYear(),12,0),
       name:this.format("yyyy")
    }
  }

  Date.prototype.getWeekOpt = function(){
      var yearFirst = new Date(this.getFullYear(),0,1);
      var d = Math.round((this.valueOf() - yearFirst.valueOf()) / Date.SECOND.DAY);
      return {
            first:new Date(this.getTime() - this.getDay()* Date.SECOND.DAY),
            last:new Date(this.getTime() + (7 - this.getDay())* Date.SECOND.DAY),
            monthIndex:Math.ceil((this.getDate() + 6 - this.getDay()) / 7),
            yearIndex:Math.ceil((d + ((yearFirst.getDay() + 1) - 1)) / 7),
            name:this.format("EE"),
            fullName:this.format("yyyy-MM EE")
      }
  }

  Date.prototype.copy = function(){
    return new Date(this.getFullYear(),this.getMonth(),this.getDate(),this.getHours(),this.getMinutes(),this.getSeconds());
  }

  Date.prototype.getDayIndex = function(){
      var yearFirst = new Date(this.getFullYear(),0,1);
      return parseInt((this.valueOf() - yearFirst.valueOf())/Date.SECOND.DAY)+1
  }

  Date.prototype.getDayName = function(){
    return this.format("yyyy-MM-dd");
  }


  Date.prototype.next = function(){
    if(arguments.length==0){
        return new Date(this.getTime()+Date.SECOND.DAY);
    }
    if(arguments.length > 0){
        var type = arguments[0];
        if(Object.prototype.toString.call(type) == "[object Number]" || 
            (Object.prototype.toString.call(type) == "[object String]" && /^-?\d+$/.test(type))){
            return new Date(this.getTime()+Date.SECOND.DAY*parseInt(type));
        }
        var step = parseInt(arguments[1]) || 1;
        var res = undefined;
        switch (type) {
            case "y":  
                res = new Date(this.getTime()); 
                res.setFullYear(this.getFullYear()+step);
                break;
            case "M":  
                res = new Date(this.getTime()); 
                res.setDate(1);  
                var y = step%12;
                res.setFullYear(this.getFullYear()+parseInt(step/12));
                var month = res.getMonth()+y;
                if(month>11){
                    res.setFullYear(res.getFullYear()+1);
                    res.setMonth(month-12);
                }else if(month < 0){
                    res.setFullYear(res.getFullYear()-1);
                    res.setMonth(month+12);
                }else{
                    res.setMonth(month); 
                }
                var conf = res.getMonthInfo();
                if(this.getDate() < conf.last.getDate()){
                    res.setDate(this.getDate());
                }else{
                    res.setDate(conf.last.getDate());
                }
                break;
            case "w":  res = new Date(this.getTime()+Date.SECOND.WEEK*step); break;
            case "d":  res = new Date(this.getTime()+Date.SECOND.DAY*step); break;
            case "H":  res = new Date(this.getTime()+Date.SECOND.HOURS*step); break;
            case "m":  res = new Date(this.getTime()+Date.SECOND.MINUTES*step); break;
            case "s":  res = new Date(this.getTime()+1000*step); break;
            default:
                res = new Date(this.getTime()+Date.SECOND.DAY*step);
                break;
        }
        return res;
    }
  }


})();