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

@Pipe({
  name: 'convertMs'
})
export class ConvertMsPipe implements PipeTransform {

  /**
   * Convert milliseconds to "readable" duration e.g. 1d21h35m24s
   * @param timeMs time in milliseconds
   */
  transform(timeMs: number): string {
    let x = timeMs / 1000;

    const seconds = Math.floor(x % 60);
    x /= 60;

    let minutes = 0;
    if (x > 1) { minutes = Math.floor(x % 60); }
    x /= 60;

    let hours = 0;
    if (x > 1) { hours = Math.floor(x % 24); }
    // TODO Enable/disable day
    x /= 24;
    const days = Math.floor(x);

    // Final string
    let ret = '';
    if (days > 0) { ret += parseInt('0' + days) + 'd'; }
    if (hours > 0) { ret += ('0' + hours).slice(-2) + 'h'; }
    if (minutes > 0) { ret += ('0' + minutes).slice(-2) + 'm'; }
    if (seconds > 0) { ret += ('0' + seconds).slice(-2) + 's'; }

    return ret;
    // return ('0' + days).slice(-2) + ':' + ('0' + hours).slice(-2) + ':' + ('0' + minutes).slice(-2) + ':' + ('0' + seconds).slice(-2);
  }
}