From cb861bc9553c14722139a6f15942f4bdd759da40 Mon Sep 17 00:00:00 2001
From: R2m1liA <15258427350@163.com>
Date: Wed, 15 Oct 2025 16:50:27 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E6=94=B9file=E5=B7=A5=E5=85=B7?=
 =?UTF-8?q?=E5=87=BD=E6=95=B0?=
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- 新增基于filename获取拓展名的函数
- 将文件大小格式化由以KB为基准修改为以Byte为基准
---
 app/utils/file.ts | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/app/utils/file.ts b/app/utils/file.ts
index a79aad5..f21e33a 100644
--- a/app/utils/file.ts
+++ b/app/utils/file.ts
@@ -1,12 +1,19 @@
-export function formatFileSize(sizeInKB: number): string {
-  if (sizeInKB < 1024) {
+export function formatFileSize(sizeInBytes: number): string {
+  if (sizeInBytes < 1024) {
+    return `${sizeInBytes.toFixed(2)} B`;
+  } else if (sizeInBytes < 1024 * 1024) {
+    const sizeInKB = sizeInBytes / 1024;
     return `${sizeInKB.toFixed(2)} KB`;
   } else {
-    const sizeInMB = sizeInKB / 1024;
+    const sizeInMB = sizeInBytes / 1024 / 1024;
     return `${sizeInMB.toFixed(2)} MB`;
   }
 }
 
+export function getFileExtension(filename: string): string {
+  return filename.split('.').pop() || '';
+}
+
 export function formatFileExtension(ext: string): string {
   return ext.startsWith('.') ? ext.slice(1).toUpperCase() : ext.toUpperCase();
 }