/**
 * Copyright (c) Microsoft Corporation.
 *
 * 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.
 */

export function msToString(ms: number): string {
  if (ms < 0 || !isFinite(ms))
    return '-';

  if (ms === 0)
    return '0ms';

  if (ms < 1000)
    return ms.toFixed(0) + 'ms';

  const seconds = ms / 1000;
  if (seconds < 60)
    return seconds.toFixed(1) + 's';

  const minutes = seconds / 60;
  if (minutes < 60)
    return minutes.toFixed(1) + 'm';

  const hours = minutes / 60;
  if (hours < 24)
    return hours.toFixed(1) + 'h';

  const days = hours / 24;
  return days.toFixed(1) + 'd';
}

export function bytesToString(bytes: number): string {
  if (bytes < 0 || !isFinite(bytes))
    return '-';

  if (bytes === 0)
    return '0';

  if (bytes < 1000)
    return bytes.toFixed(0);

  const kb = bytes / 1024;
  if (kb < 1000)
    return kb.toFixed(1) + 'K';

  const mb = kb / 1024;
  if (mb < 1000)
    return mb.toFixed(1) + 'M';

  const gb = mb / 1024;
  return gb.toFixed(1) + 'G';
}