fix: don't allow to add duplicate alias to the group

Author: chouchouji

l10n/bundle.l10n.zh-cn.json

@@ -30,5 +30,6 @@
   "Import json file successfully": "json文件导入成功",
   "No any alias need to import": "没有数据需要导入",
   "Fail to read file: {message}": "文件读取失败: {message}",
-  "Fail to resolve json file: {message}": "json文件解析失败: {message}"
+  "Fail to resolve json file: {message}": "json文件解析失败: {message}",
+  "This alias already exists": "此别名已存在"
 }

src/extension.ts

@@ -594,7 +594,7 @@ alias ${alias}`,
       return
     }
 
-    const groups = this.globalState.keys().filter((key) => ![SYSTEM_ALIAS, alias.group].includes(key))
+    const groups = this.globalState.keys().filter((group) => ![SYSTEM_ALIAS, alias.group].includes(group))
     if (groups.length === 0) {
       vscode.window.showWarningMessage('No any group can be added')
       return
@@ -610,6 +610,12 @@ alias ${alias}`,
     }
 
     const aliases = normalizeAliasesToArray<Alias>(this.globalState.get(selectedGroup))
+    const hasSameAlias = aliases.some((aliasItem) => isSameAlias(alias.data!, aliasItem))
+    if (hasSameAlias) {
+      vscode.window.showInformationMessage(vscode.l10n.t('This alias already exists'))
+      return
+    }
+
     aliases.push(alias.data)
     this.globalState.update(selectedGroup, aliases)