1  import dayjs from 'dayjs';
 2  
 3  /**
 4   * Format bytes to human-readable GB string
 5   */
 6  export const formatBytes = (bytes: number): string => {
 7    if (!bytes) return '-';
 8    const gb = bytes / (1024 * 1024 * 1024);
 9    return `${gb.toFixed(1)} GB`;
10  };
11  
12  /**
13   * Format bytes with more precision (2 decimal places)
14   */
15  export const formatBytesPrecise = (bytes: number): string => {
16    if (!bytes) return '-';
17    const gb = bytes / (1024 * 1024 * 1024);
18    return `${gb.toFixed(2)} GB`;
19  };
20  
21  /**
22   * Format ISO time string to locale string (zh-CN)
23   */
24  export const formatTime = (time: string | null): string => {
25    if (!time) return '-';
26    return new Date(time).toLocaleString('zh-CN');
27  };
28  
29  /**
30   * Format ISO time string to YYYY-MM-DD HH:mm:ss
31   */
32  export const formatDateTime = (time: string | null | undefined): string => {
33    if (!time) return '-';
34    return dayjs(time).format('YYYY-MM-DD HH:mm:ss');
35  };
36  
37  /**
38   * Format ISO time string to MM-DD HH:mm:ss (shorter)
39   */
40  export const formatDateTimeShort = (time: string | null | undefined): string => {
41    if (!time) return '-';
42    return dayjs(time).format('MM-DD HH:mm:ss');
43  };
44  
45  /**
46   * Format ISO time string to HH:mm:ss (time only)
47   */
48  export const formatTimeOnly = (time: string | null | undefined): string => {
49    if (!time) return '-';
50    return dayjs(time).format('HH:mm:ss');
51  };
52  
53  /**
54   * Format ISO time string to YYYY-MM-DD HH:mm (no seconds)
55   */
56  export const formatDateMinute = (time: string | null | undefined): string => {
57    if (!time) return '-';
58    return dayjs(time).format('YYYY-MM-DD HH:mm');
59  };