UPDATE: update new language patch

frontend/src/pages/language/index.tsx

@@ -27,28 +27,42 @@ export default function LanguagePage() {
 
     useEffect(() => {
         const getLanguage = async () => {
-            if (gameDir) {
-                const subPath = 'StarRail_Data/StreamingAssets/DesignData/Windows'
-                const fullPath = `${gameDir}/${subPath}`
+            if (!gameDir) return
 
-                const exists = await FSService.DirExists(fullPath)
-                if (exists) {
-                    const [textLang, voiceLang] = await LanguageService.GetLanguage(fullPath)
-                    setTextLang(textLang)
-                    setVoiceLang(voiceLang)
-                    setFolderCheckResult('success')
-                    setSelectedTextLang(textLang)
-                    setSelectedVoiceLang(voiceLang)
-                } else {
-                    setTextLang('')
-                    setVoiceLang('')
-                    setSelectedTextLang('')
-                    setSelectedVoiceLang('')
-                    setFolderCheckResult('error')
-                    setGameDir('')
-                }
+            const subPath = "StarRail_Data/StreamingAssets"
+            const fullPath = `${gameDir}/${subPath}`
+
+            const exists = await FSService.DirExists(fullPath)
+            if (!exists) {
+                setTextLang("")
+                setVoiceLang("")
+                setSelectedTextLang("")
+                setSelectedVoiceLang("")
+                setFolderCheckResult("error")
+                setGameDir("")
+                return
             }
+
+            const [ok, textLang, voiceLang, err] = await LanguageService.GetLanguage(fullPath)
+            if (!ok) {
+                setTextLang("")
+                setVoiceLang("")
+                setSelectedTextLang("")
+                setSelectedVoiceLang("")
+                setFolderCheckResult("error")
+                setGameDir("")
+                toast.error(err)
+                return
+            }
+
+            // success
+            setTextLang(textLang)
+            setVoiceLang(voiceLang)
+            setFolderCheckResult("success")
+            setSelectedTextLang(textLang)
+            setSelectedVoiceLang(voiceLang)
         }
+
         getLanguage()
     }, [gameDir])
 
@@ -86,19 +100,19 @@ export default function LanguagePage() {
         }
         try {
             setIsSettingLanguage(true)
-            const result = await LanguageService.SetLanguage(
+            const [ok, err] = await LanguageService.SetLanguage(
                 `${gameDir}/StarRail_Data/StreamingAssets/DesignData/Windows`,
                 selectedTextLang,
                 selectedVoiceLang
             )
-           if (result) {
-            toast.success('Language set successfully')
-            setTextLang(selectedTextLang)
-            setVoiceLang(selectedVoiceLang)
-           }
-           else {
-            toast.error('Language set failed')
-           }
+            if (ok) {
+                toast.success('Language set successfully')
+                setTextLang(selectedTextLang)
+                setVoiceLang(selectedVoiceLang)
+            }
+            else {
+                toast.error(err)
+            }
 
         } catch (err: any) {
             toast.error('SetLanguage error:', err)
@@ -154,8 +168,8 @@ export default function LanguagePage() {
                             </div>
                             {folderCheckResult && (
                                 <div className={`flex items-center gap-2 p-3 rounded-lg ${folderCheckResult === 'success'
-                                        ? 'bg-success/5 text-success border border-success'
-                                        : 'bg-error/5 text-error border border-error'
+                                    ? 'bg-success/5 text-success border border-success'
+                                    : 'bg-error/5 text-error border border-error'
                                     }`}>
                                     {folderCheckResult === 'success' ? (
                                         <>