Files
openstapps/src/app/util/next-date-in-list.pipe.ts
2022-08-08 11:01:00 +00:00

42 lines
1.3 KiB
TypeScript

/*
* Copyright (C) 2021 StApps
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, version 3.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <https://www.gnu.org/licenses/>.
*/
import {Injectable, Pipe, PipeTransform} from '@angular/core';
import moment from 'moment';
/**
* Get the last value of an array
*/
@Injectable()
@Pipe({
name: 'nextDateInList',
pure: false, // pure pipe can break in some change detection scenarios,
// specifically, on the calendar view it causes it to stay true even when you navigate
})
export class NextDateInListPipe implements PipeTransform {
/**
* Transform
*/
// tslint:disable-next-line:prefer-function-over-method
transform(dates: string[]): string {
const nextDate = dates
.sort((a, b) => moment(a).unix() - moment(b).unix())
.find(date => {
return moment(date).unix() > moment().unix();
});
return nextDate || '';
}
}