Vmeda.Online/src/pipes/duration.ts

// (C) Copyright 2015 Martin Dougiamas
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

import { Pipe, PipeTransform } from '@angular/core';
import { CoreLoggerProvider } from '../providers/logger';
import * as moment from 'moment';

/**
 * Filter to turn a number of seconds to a duration. E.g. 60 -> 1 minute.
 */
@Pipe({
    name: 'coreDuration',
})
export class CoreDurationPipe implements PipeTransform {
    protected logger;

    constructor(logger: CoreLoggerProvider) {
        this.logger = logger.getInstance('CoreBytesToSizePipe');
    }

    /**
     * Turn a number of seconds to a duration. E.g. 60 -> 1 minute.
     *
     * @param {number|string} seconds The number of seconds.
     * @return {string} Formatted duration.
     */
    transform(seconds: string | number): string {
        if (typeof seconds == 'string') {
            // Convert the value to a number.
            const numberSeconds = parseInt(seconds, 10);
            if (isNaN(numberSeconds)) {
                this.logger.error('Invalid value received', seconds);

                return seconds;
            }
            seconds = numberSeconds;
        }

        return moment.duration(seconds * 1000).humanize();
    }
}