恋爱键盘后台初始化

src/utils/file.ts

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+/** 从 URL 中提取文件名 */
+export const getFileNameFromUrl = (url: string): string => {
+  try {
+    const urlObj = new URL(url)
+    const pathname = urlObj.pathname
+    const fileName = pathname.split('/').pop() || 'unknown'
+    return decodeURIComponent(fileName)
+  } catch {
+    // 如果 URL 解析失败，尝试从字符串中提取
+    const parts = url.split('/')
+    return parts[parts.length - 1] || 'unknown'
+  }
+}
+
+/** 判断是否为图片 */
+export const isImage = (filename: string): boolean => {
+  const ext = filename.split('.').pop()?.toLowerCase() || ''
+  return ['jpg', 'jpeg', 'png', 'gif', 'bmp', 'webp', 'svg'].includes(ext)
+}
+
+/** 格式化文件大小 */
+export const formatFileSize = (bytes: number): string => {
+  if (bytes === 0) return '0 B'
+  const k = 1024
+  const sizes = ['B', 'KB', 'MB', 'GB']
+  const i = Math.floor(Math.log(bytes) / Math.log(k))
+  return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i]
+}
+
+/** 获取文件图标 */
+export const getFileIcon = (filename: string): string => {
+  const ext = filename.split('.').pop()?.toLowerCase() || ''
+  if (isImage(ext)) {
+    return 'ep:picture'
+  }
+  return 'ep:document'
+}