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(function () {
'use strict';
angular.module("app")
.factory("DateService",DateService);
function DateService(){
var service = {};
/*0今天,-1昨天。。。*/
service.getDay = function(num){
var time = new Date(),
dayFn = function(date) {
var YY = date.getFullYear(),
MM = date.getMonth() + 1,
DD = date.getDate();
if (MM < 10) MM = "0" + MM;
if (DD < 10) DD = "0" + DD;
return YY + "-" + MM + "-" + DD
},
times = time.getTime() + (1000 * 60 * 60 * 24 * num);
time.setTime(times);
return dayFn(time);
};
//一年多少周
service.getYearWeekList = function(year){
if(typeof year == 'undefined'){
var d = new Date();
year = d.getFullYear();
}
var weeklist = [];
var firstDay = new Date(year, 0, 1),fw = firstDay.getDay();
var maxDay = new Date(year, 11, 31);
fw = fw == 0 ? 7 :fw;
var endDay = firstDay.clone().addDays(7 - fw),w = 0;
//当年的第一天为周五周六周日并到上一年
if(fw > 0 && fw < 5){
w = 1;
weeklist.push({
week : w,
date : endDay,
year : year
});
}
while(endDay < maxDay && !maxDay.isSameDay(endDay)){
w ++ ;
endDay = endDay.clone().addDays(7);
weeklist.push({
week : w,
date : endDay,
year : year
});
}
var lastDay = new Date(year, 11, 31),lastW = lastDay.getDay();
//当年最后一天是周五周六或者周日时,移到下一年
if(lastW > 0 && lastW < 4){
weeklist.pop();
}
return weeklist;
}
//一年多少周数
service.getYearWeekCount = function(year){
return service.getYearWeekList(year).length;
}
//当前周数
service.getNowWeekNum = function(){
var today = Date.today();
var firstDay = new Date(today.getFullYear(), 0, 1),fw = firstDay.getDay();
var endDay = firstDay.clone(),n = 0;
if( fw > 0){
endDay = endDay.addDays(8-fw);
n = 1;
}
var days = diffDate(endDay , today);
return Math.ceil(days/7) + n;
}
//今天
service.getToday = function(){
return {
startDate:service.getDay(0),
endDate:service.getDay(0)
}
}
//昨天
service.getYesDay = function(){
return {
startDate:service.getDay(-1),
endDate:service.getDay(-1)
}
}
//最近几天,默认从昨天往前推
service.getLastDays = function(d,flag){
if(angular.isUndefined(flag)){
flag = -1;
}
if(flag == 0 && d<0){
d += 1;
}
if(flag == 0 && d>0){
d -= 1;
}
return {
startDate:service.getDay(d),
endDate:service.getDay(flag)
}
}
//最近几周
service.getLastWeeks = function(d){
var w = service.getNowWeekNum(),
date = new Date(),
year = date.getFullYear();
var range = {end:year+service.getStr(w)},pd = d + w +1;
if(pd > 0 ){
range.start = year + service.getStr(pd);
}else{
var pr = service.getYearWeekCount(year-1);
range.start = (year-1) + service.getStr(pr + pd);
}
return range;
}
//最近几月
service.getLastMonths = function(d){
var date = new Date(),year = date.getFullYear(),month = date.getMonth()+1;
var range = {end:year+service.getStr(month)},pm = month+d+1;
if(pm > 0 ){
range.start = year + service.getStr(pm);
}else{
range.start = (year-1) + service.getStr(12 + pm);
}
return range;
}
service.getStr = function(n){
if(n < 10){
return "0"+n;
}else{
return n+"";
}
}
//某周日期范围 d:0当前周 -1往前 1往后
//flag传值就是最大天数是昨天 目前传-1表示最大昨天
service.getWeekRangeDate = function(d,flag){
d = d ? d : 0;
var date = new Date(),w = date.getDay();
w = w == 0 ? 7 : w;
var start = date.clone().addDays(-w+1),end = date;
if(d > 0){
start = start.clone().addDays(d*7);
end = start.clone().addDays(6);
}
else if(d < 0){
end = start.clone().addDays(-1+(d+1)*7);
start = start.clone().addDays(d*7);
}
if(flag && flag == -1 && Date.isSameDay(end,Date.today())){
if(start == end){
start = end = end.clone().addDays(-1);
}
else{
end = end.clone().addDays(-1);
}
}
return {
startDate:start.Format("yyyy-MM-dd"),
endDate:end.Format("yyyy-MM-dd")
}
}
//某月日期范围 d:0当前月 -1往前 1往后
//flag传值就是最大天数是昨天 目前传-1表示最大昨天
service.getMonthRangeDate = function(d,flag){
d = d ? d : 0;
var date = new Date(),year = date.getFullYear(),m = date.getMonth(),day = date.getDate();
var start = null,end = null;
if(d!=0){
m += d;
if(m<0){
m += 11;
-- year;
}
day = Date.getDaysInMonth(year,m);
end = new Date(year,m,day);
start = end.clone();
start.setDate(1);
}
else{
if(flag && flag == -1){
day += -1;
}
start = date.clone(),end = date;
start.setDate(1);
end.setDate(day);
}
return {
startDate:start.Format("yyyy-MM-dd"),
endDate:end.Format("yyyy-MM-dd")
}
}
//计算两个日期时间差
service.getDaysNum = function(strDateStart,strDateEnd){
var strSeparator = "-"; //日期分隔符
var oDate1;
var oDate2;
var iDays;
oDate1= strDateStart.split(strSeparator);
oDate2= strDateEnd.split(strSeparator);
var strDateS = new Date(oDate1[0], oDate1[1]-1, oDate1[2]);
var strDateE = new Date(oDate2[0], oDate2[1]-1, oDate2[2]);
iDays = parseInt(Math.abs(strDateS - strDateE ) / 1000 / 60 / 60 /24)//把相差的毫秒数转换为天数
return iDays;
}
return service;
}
})();