import { Pipe, PipeTransform } from '@angular/core';

@Pipe({ name: 'tempDate' })

/**
 * This pipe is created solely to address an IE11 bug where
 * the regular Angular Date pipe formatting string (date:'H:mm') is ignored
 * NOTE: After upgrading to Angular 5 - the IE11 bug should be resolved
 *       and we can scrap this pipe
 *       info: https://github.com/angular/angular/issues/10147
 */
export class TempDatePipe implements PipeTransform {
  transform(value: string): string {
    if (value) {
      const date = new Date(value);
      let hours = date.getHours().toString(10);
      let minutes = date.getMinutes().toString(10);

      if (hours.length === 1) {
        hours = '0' + hours;
      }

      if (minutes.length === 1) {
        minutes = '0' + minutes;
      }

      value = hours + ':' + minutes;
    }

    return value;
  }
}