panel/web/src/utils/common/common.ts

import { DateTime, Duration } from 'luxon'

/** 格式化时间，默认格式：yyyy-MM-dd HH:mm:ss */
export function formatDateTime(time: any, format = 'yyyy-MM-dd HH:mm:ss'): string {
  const dateTime = time ? DateTime.fromJSDate(new Date(time)) : DateTime.now()
  return dateTime.toFormat(format)
}

/** 格式化日期，默认格式：yyyy-MM-dd */
export function formatDate(date: any, format = 'yyyy-MM-dd') {
  return formatDateTime(date, format)
}

/** 格式化持续时间，转为 x天x小时x分钟x秒 */
export function formatDuration(seconds: number) {
  const duration = Duration.fromObject({ seconds }).shiftTo('days', 'hours', 'minutes', 'seconds')
  const days = duration.days
  const hours = duration.hours
  const minutes = duration.minutes
  const secs = duration.seconds

  return `${days}天${hours}小时${minutes}分钟${secs}秒`
}

/** 转时间戳 */
export function toTimestamp(time: any) {
  return DateTime.fromJSDate(new Date(time)).toSeconds()
}

/** 生成随机字符串 */
export function generateRandomString(length: number) {
  const characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'
  const charactersLength = characters.length
  let result = ''
  if (!window.crypto || !window.crypto.getRandomValues) {
    // fallback to insecure Math.random if crypto is not available
    for (let i = 0; i < length; i++) {
      const randomIndex = Math.floor(Math.random() * charactersLength)
      result += characters[randomIndex]
    }
    return result
  }
  // Use Uint8Array for random bytes
  while (result.length < length) {
    const randomBytes = new Uint8Array(length - result.length)
    window.crypto.getRandomValues(randomBytes)
    for (let i = 0; i < randomBytes.length && result.length < length; i++) {
      // Only use values that map evenly to the character set to avoid bias
      const maxValue = Math.floor(256 / charactersLength) * charactersLength
      const byteValue = randomBytes[i] ?? 0
      if (byteValue < maxValue) {
        const randomIndex = byteValue % charactersLength
        result += characters[randomIndex] ?? ''
      }
    }
  }
  return result
}

/** 为裸 IPv6 地址套上方括号（如 ::1 → [::1]），用于拼接 URL；非 IPv6 或已带方括号则原样返回 */
export function wrapIPv6(host: string): string {
  return host.includes(':') && !host.startsWith('[') ? `[${host}]` : host
}