define("local_treestudyplan/util/date-helper",["exports"],(function(_exports){function format_date(d,short){d instanceof Date||(d=new Date(d));let monthformat="short";return!0===short?monthformat="numeric":!1===short&&(monthformat="long"),d.toLocaleDateString(document.documentElement.lang,{year:"numeric",month:monthformat,day:"numeric"})}function studyplanDates(plan){let earliestStart=null,latestEnd=null,openEnded=!1;for(const ix in plan.pages){const page=plan.pages[ix],s=new Date(page.startdate);if(page.enddate||(openEnded=!0),(!earliestStart||s<earliestStart)&&(earliestStart=s),page.enddate){const e=new Date(page.enddate);(!latestEnd||e>latestEnd)&&(latestEnd=e)}}return{start:earliestStart,end:openEnded?null:latestEnd}}Object.defineProperty(_exports,"__esModule",{value:!0}),_exports.add_days=function(datestr,days){const date=new Date(datestr);return function(date){const d=new Date(date);let month=""+(d.getMonth()+1),day=""+d.getDate();const year=d.getFullYear();month.length<2&&(month="0"+month);day.length<2&&(day="0"+day);return[year,month,day].join("-")}(new Date(date.getTime()+864e5*days))},_exports.datespaninfo=function(first,last){first instanceof Date||(first=new Date(first));last instanceof Date||(last=new Date(last));first.setHours(0),first.setMinutes(0),first.setSeconds(0),first.setMilliseconds(0),last.setHours(23),last.setMinutes(59),last.setSeconds(59),last.setMilliseconds(999);const dayspan=Math.round((last-first+1)/864e5),years=Math.floor(dayspan/365),ydaysleft=dayspan%365,weeks=Math.floor(ydaysleft/7);return{first:first,last:last,totaldays:dayspan,years:years,weeks:weeks,days:ydaysleft%7,formatted:{first:format_date(first),last:format_date(last)}}},_exports.format_date=format_date,_exports.studyplanDates=studyplanDates,_exports.studyplanPageTiming=function(page){const now=(new Date).getTime(),start=new Date(page.startdate),end=page.enddate?new Date(page.enddate):null;return start<now?end&&now>end?"past":"present":"future"},_exports.studyplanTiming=function(plan){const now=(new Date).getTime(),dates=studyplanDates(plan);return dates.start<now?dates.end&&now>dates.end?"past":"present":"future"}}));

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