// (C) Copyright 2015 Moodle Pty Ltd.
//
// 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';

/**
 * Pipe to remove period at the end of a text if present.
 */
@Pipe({
    name: 'coreNoPeriod',
})
export class CoreNoPeriodPipe implements PipeTransform {

    /**
     * Takes a text and removes ending period.
     *
     * @param text The text to treat.
     * @returns Treated text.
     */
    transform(text: string): string {
        if (!text) {
            return '';
        }

        return text.trim().replace(/\.$/, '');
    }

}