24kycj
128 lines
3.1 KiB
JavaScript
128 lines
3.1 KiB
JavaScript
/**
|
||
* 跨平台文件大小计算工具
|
||
* 处理不同操作系统的文件大小差异
|
||
*/
|
||
|
||
// 检测操作系统（网页端无 process.platform，返回 'web'）
|
||
export function getOS() {
|
||
if (typeof process === 'undefined' || process.platform === undefined) return 'web'
|
||
const platform = process.platform
|
||
if (platform === 'win32') return 'windows'
|
||
if (platform === 'darwin') return 'mac'
|
||
if (platform === 'linux') return 'linux'
|
||
return 'unknown'
|
||
}
|
||
|
||
// 获取基础单位大小
|
||
export function getBaseSize() {
|
||
const os = getOS()
|
||
|
||
// 不同操作系统的基础单位
|
||
const baseSizes = {
|
||
windows: 1024, // Windows 使用 1024 进制 (二进制)
|
||
mac: 1024, // macOS 使用 1024 进制 (十进制)
|
||
linux: 1024, // Linux 使用 1024 进制 (十进制，遵循 SI 标准)
|
||
web: 1024 // 网页端固定 1024
|
||
}
|
||
|
||
return baseSizes[os] || 1024
|
||
}
|
||
|
||
// 计算光盘类型大小
|
||
export function calculateDiscSize(sizeInGB, os = null) {
|
||
const baseSize = os ? getBaseSizeForOS(os) : getBaseSize()
|
||
return sizeInGB * Math.pow(baseSize, 3)
|
||
}
|
||
|
||
// 为特定操作系统获取基础大小
|
||
export function getBaseSizeForOS(os) {
|
||
const baseSizes = {
|
||
windows: 1024, // Windows 使用 1024 进制 (二进制)
|
||
mac: 1024, // macOS 使用 1024 进制 (十进制)
|
||
linux: 1024 // Linux 使用 1024 进制 (十进制，遵循 SI 标准)
|
||
}
|
||
return baseSizes[os] || 1024
|
||
}
|
||
|
||
// 光盘类型配置
|
||
export function getDiscTypes(os = null) {
|
||
const baseSize = os ? getBaseSizeForOS(os) : getBaseSize()
|
||
|
||
return [
|
||
{
|
||
value: 1,
|
||
label: 'CD 700MB',
|
||
size: 700 * Math.pow(1000, 2)
|
||
},
|
||
{
|
||
value: 2,
|
||
label: 'DVD 4.7GB',
|
||
size: 4.7 * Math.pow(1000, 3)
|
||
},
|
||
{
|
||
value: 3,
|
||
label: 'DVD_DL 8.5GB',
|
||
size: 8.5 * Math.pow(1000, 3)
|
||
},
|
||
{
|
||
value: 4,
|
||
label: 'BD 25GB',
|
||
size: 25 * Math.pow(1000, 3)
|
||
},
|
||
{
|
||
value: 5,
|
||
label: 'BD_DL 50GB',
|
||
size: 50 * Math.pow(1000, 3)
|
||
},
|
||
{
|
||
value: 6,
|
||
label: 'BD_TL 100GB',
|
||
size: 100 * Math.pow(1000, 3)
|
||
},
|
||
{
|
||
value: 7,
|
||
label: 'BD_QL 128GB',
|
||
size: 128 * Math.pow(1000, 3)
|
||
}
|
||
]
|
||
}
|
||
|
||
// 格式化文件大小显示
|
||
export function formatFileSize(bytes, os = null) {
|
||
if (!bytes || bytes < 0) return '0 B'
|
||
|
||
const baseSize = os ? getBaseSizeForOS(os) : getBaseSize()
|
||
const units = ['B', 'KB', 'MB', 'GB', 'TB']
|
||
|
||
let size = bytes
|
||
let unitIndex = 0
|
||
|
||
while (size >= baseSize && unitIndex < units.length - 1) {
|
||
size /= baseSize
|
||
unitIndex++
|
||
}
|
||
|
||
return `${size.toFixed(2)} ${units[unitIndex]}`
|
||
}
|
||
|
||
// 获取当前系统的光盘类型配置
|
||
export function getCurrentOSDiscTypes() {
|
||
return getDiscTypes()
|
||
}
|
||
|
||
// 调试信息：显示当前系统配置
|
||
export function getDebugInfo() {
|
||
const os = getOS()
|
||
const baseSize = getBaseSize()
|
||
const discTypes = getDiscTypes()
|
||
|
||
return {
|
||
os,
|
||
baseSize,
|
||
discTypes: discTypes.map(type => ({
|
||
...type,
|
||
formattedSize: formatFileSize(type.size)
|
||
}))
|
||
}
|
||
}
|