first commit

web/src/utils/error.ts

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+import axios from 'axios'
+
+export function resolveErrorMessage(error: unknown, fallback = '请求失败，请稍后重试') {
+  if (axios.isAxiosError(error)) {
+    return error.response?.data?.message ?? fallback
+  }
+  if (error instanceof Error && error.message) {
+    return error.message
+  }
+  return fallback
+}

web/src/utils/format.test.ts

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+import { describe, expect, it } from 'vitest'
+import { formatBytes, formatDuration, formatPercent } from './format'
+
+describe('format utils', () => {
+  it('formats bytes into readable units', () => {
+    expect(formatBytes(0)).toBe('0 B')
+    expect(formatBytes(1024)).toBe('1 KB')
+    expect(formatBytes(1536)).toBe('1.5 KB')
+  })
+
+  it('formats percent and duration', () => {
+    expect(formatPercent(0.56)).toBe('56%')
+    expect(formatDuration(45)).toBe('45 秒')
+    expect(formatDuration(3661)).toBe('1 小时 1 分 1 秒')
+  })
+})

web/src/utils/format.ts

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+export function formatDateTime(value?: string | Date | null) {
+  if (!value) {
+    return '-'
+  }
+  const date = value instanceof Date ? value : new Date(value)
+  if (Number.isNaN(date.getTime())) {
+    return '-'
+  }
+  return new Intl.DateTimeFormat('zh-CN', {
+    year: 'numeric',
+    month: '2-digit',
+    day: '2-digit',
+    hour: '2-digit',
+    minute: '2-digit',
+    second: '2-digit',
+  }).format(date)
+}
+
+export function formatBytes(value?: number | null) {
+  if (!value || value <= 0) {
+    return '0 B'
+  }
+  const units = ['B', 'KB', 'MB', 'GB', 'TB']
+  let current = value
+  let index = 0
+  while (current >= 1024 && index < units.length - 1) {
+    current /= 1024
+    index += 1
+  }
+  const digits = current >= 10 || index === 0 ? 0 : 1
+  const formatted = current.toFixed(digits).replace(/\.0$/, '')
+  return `${formatted} ${units[index]}`
+}
+
+export function formatPercent(value?: number | null) {
+  if (typeof value !== 'number' || Number.isNaN(value)) {
+    return '0%'
+  }
+  return `${(value * 100).toFixed(value >= 0.1 ? 0 : 1)}%`
+}
+
+export function formatDuration(seconds?: number | null) {
+  if (!seconds || seconds <= 0) {
+    return '0 秒'
+  }
+  if (seconds < 60) {
+    return `${seconds} 秒`
+  }
+  const hours = Math.floor(seconds / 3600)
+  const minutes = Math.floor((seconds % 3600) / 60)
+  const remainSeconds = seconds % 60
+  if (hours > 0) {
+    return `${hours} 小时 ${minutes} 分 ${remainSeconds} 秒`
+  }
+  return `${minutes} 分 ${remainSeconds} 秒`
+}