feat: configured app to system default language on installation

Author: Mastermind-sap

lib/app/utils/app_settings/app_settings.dart

@@ -15,8 +15,18 @@ class AppSettings {
     await SaveTourStatus.init();
 
     isDarkMode = SelectedTheme.getMode() ?? true;
-    selectedLanguage =
-        SelectedLanguage.getSelectedLanguage() ?? SupportedLanguage.english;
+
+    SupportedLanguage? userPreferredLanguage =
+        SelectedLanguage.getSelectedLanguage();
+
+    if (userPreferredLanguage != null) {
+      selectedLanguage = userPreferredLanguage;
+    } else {
+      // If no explicit preference, use the system language (if supported)
+      selectedLanguage = SupportedLanguageExtension.getSystemLanguage();
+      // Save the system language as the user's preference
+      await SelectedLanguage.saveSelectedLanguage(selectedLanguage);
+    }
   }
 
   static Future saveSettings(

lib/app/utils/language/supported_language.dart

@@ -1,13 +1,14 @@
+import 'package:flutter/widgets.dart';
+
 enum SupportedLanguage {
   english,
   hindi,
   marathi,
-  french,  
-  spanish,  
-  bengali,  
+  french,
+  spanish,
+  bengali,
 }
 
-
 extension SupportedLanguageExtension on SupportedLanguage {
   String get languageCode {
     switch (this) {
@@ -18,11 +19,11 @@ extension SupportedLanguageExtension on SupportedLanguage {
       case SupportedLanguage.marathi:
         return 'mr';
       case SupportedLanguage.french:
-        return 'fr';  
+        return 'fr';
       case SupportedLanguage.spanish:
-        return 'es';  
+        return 'es';
       case SupportedLanguage.bengali:
-        return 'bn';  
+        return 'bn';
       default:
         return '';
     }
@@ -37,13 +38,24 @@ extension SupportedLanguageExtension on SupportedLanguage {
       case 'mr':
         return SupportedLanguage.marathi;
       case 'fr':
-        return SupportedLanguage.french;  
+        return SupportedLanguage.french;
       case 'es':
-        return SupportedLanguage.spanish;  
+        return SupportedLanguage.spanish;
       case 'bn':
-        return SupportedLanguage.bengali;  
+        return SupportedLanguage.bengali;
       default:
         return null;
     }
   }
+
+  static SupportedLanguage getSystemLanguage() {
+    // Get the current system locale
+    final String systemLocale =
+        WidgetsBinding.instance.window.locale.languageCode;
+    debugPrint('System Locale: $systemLocale');
+
+    final supportedLanguage = fromCode(systemLocale);
+    // Return the supported language or default to English
+    return supportedLanguage ?? SupportedLanguage.english;
+  }
 }