fix: fixed unsupported language issue due to cached language in local…

…Storage (#8674)

* fix: fixed unsupported language issue due to cached language in localStorage

The issue:
If selecting `PPL` in discover, and navigate to visualization creating
page which doesn't support `PPL`, the `PPL` is still be used.

The fix:
It will only use the cached language selection from localStorage if
the current app supports the language.

Signed-off-by: Yulong Ruan <[email protected]>

* Changeset file for PR #8674 created/updated

---------

Signed-off-by: Yulong Ruan <[email protected]>
Co-authored-by: opensearch-changeset-bot[bot] <154024398+opensearch-changeset-bot[bot]@users.noreply.github.com>
(cherry picked from commit e94cf0c)
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

changelogs/fragments/8674.yml

@@ -0,0 +1,2 @@
+fix:
+- Fixed unsupported language is used from localStorage ([#8674](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/8674))

src/plugins/data/public/query/query_string/query_string_manager.ts

@@ -225,13 +225,27 @@ export class QueryStringManager {
     };
   };
 
-  private getDefaultLanguage() {
-    return (
-      this.storage.get('userQueryLanguage') ||
-      this.uiSettings.get(UI_SETTINGS.SEARCH_QUERY_LANGUAGE)
+  private isLanguageSupported(languageId: string) {
+    const currentAppId = this.getCurrentAppId();
+    if (!currentAppId) {
+      return false;
+    }
+
+    return containsWildcardOrValue(
+      this.languageService.getLanguage(languageId)?.supportedAppNames,
+      currentAppId
     );
   }
 
+  private getDefaultLanguage() {
+    const lastUsedLanguage = this.storage.get('userQueryLanguage');
+    if (lastUsedLanguage && this.isLanguageSupported(lastUsedLanguage)) {
+      return lastUsedLanguage;
+    }
+
+    return this.uiSettings.get(UI_SETTINGS.SEARCH_QUERY_LANGUAGE);
+  }
+
   private getCurrentAppId = () => {
     let appId;
     try {