From dbade212890157e1b2c0dcf9ab48152e0a592cfd Mon Sep 17 00:00:00 2001
From: Kuingsmile <96409857+Kuingsmile@users.noreply.github.com>
Date: Wed, 20 Aug 2025 21:04:09 +0800
Subject: [PATCH] :zap: Perf(custom): optimize random string generation
 algorithm

---
 src/renderer/manage/utils/common.ts | 33 ++++++++++++++++-------------
 1 file changed, 18 insertions(+), 15 deletions(-)

diff --git a/src/renderer/manage/utils/common.ts b/src/renderer/manage/utils/common.ts
index 07f3a892..97679b22 100644
--- a/src/renderer/manage/utils/common.ts
+++ b/src/renderer/manage/utils/common.ts
@@ -16,11 +16,25 @@ export const isUrlEncode = (url: string): boolean => {
 
 export const handleUrlEncode = (url: string): string => (isUrlEncode(url) ? url : encodeURI(url))
 
+const mask = 0b111111
+const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'
 export function randomStringGenerator(length: number): string {
-  const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'
-  return Array.from({ length })
-    .map(() => chars.charAt(Math.floor(Math.random() * chars.length)))
-    .join('')
+  const out = new Array(length)
+  let i = 0
+  let pool = 0
+  let bits = 0
+  while (i < length) {
+    if (bits < 6) {
+      pool = (pool << 30) | ((Math.random() * 0x40000000) >>> 0)
+      bits += 30
+      continue
+    }
+    const idx = pool & mask
+    pool >>>= 6
+    bits -= 6
+    if (idx < 62) out[i++] = chars[idx]
+  }
+  return out.join('')
 }
 
 export function renameFileNameWithTimestamp(oldName: string): string {
@@ -158,17 +172,6 @@ export function isValidUrl(str: string) {
   }
 }
 
-export const svg = `
-  <path class="path" d="
-    M 30 15
-    L 28 17
-    M 25.61 25.61
-    A 15 15, 0, 0, 1, 15 30
-    A 15 15, 0, 1, 1, 27.99 7.5
-    L 15 15
-  " style="stroke-width: 4px; fill: rgba(0, 0, 0, 0)"/>
-  `
-
 export function customStrMatch(str: string, pattern: string): boolean {
   if (!str || !pattern) return false
   try {