Fixed culture setting handling for non-continuous indices

I18N Commander/Processor/AppSettings.cs

@@ -288,29 +288,30 @@ public static class AppSettings
 
     #region Number of cultures
     
-    private static int CACHE_NUMBER_OF_CULTURES = -1;
+    private static List<int> CACHE_CULTURES_INDICES = new();
 
-    public static async Task<int> GetNumberCultures()
+    public static async Task<List<int>> GetCultureIndices()
     {
         // When possible, use the cache:
-        if (CACHE_NUMBER_OF_CULTURES > -1)
-            return CACHE_NUMBER_OF_CULTURES;
+        if (CACHE_CULTURES_INDICES.Count > 0)
+            return CACHE_CULTURES_INDICES;
         
         // Get the database:
         await using var db = ProcessorMeta.ServiceProvider.GetRequiredService<DataContext>();
         
         // Count the number of cultures:
-        var count = await db.Settings.CountAsync(n => n.Code.StartsWith(SettingNames.CULTURE));
+        var list = await db.Settings.Where(n => n.Code.StartsWith(SettingNames.CULTURE)).OrderBy(n => n.IntegerValue).Select(n => n.IntegerValue).ToListAsync();
         
         // We have at least one default culture:
-        if(count == 0)
+        if(list.Count == 0)
         {
-            CACHE_NUMBER_OF_CULTURES = 1;
-            return 1;
+            // Add the default culture, which is en-US:
+            await AppSettings.SetCultureCode(1, "en-US");
         }
-
-        CACHE_NUMBER_OF_CULTURES = count;
-        return count;
+        else
+            CACHE_CULTURES_INDICES = list;
+        
+        return CACHE_CULTURES_INDICES;
     }
 
     #endregion
@@ -377,9 +378,8 @@ public static class AppSettings
             await db.Settings.AddAsync(setting);
             await db.SaveChangesAsync();
             
-            // Update the number of cultures cache:
-            if(CACHE_NUMBER_OF_CULTURES > -1)
-                CACHE_NUMBER_OF_CULTURES++;
+            // Update the list of cultures indices:
+            CACHE_CULTURES_INDICES.Add(index);
         }
     }
     
@@ -392,15 +392,15 @@ public static class AppSettings
     public static async Task<List<CultureInfo>> GetCultureInfos()
     {
         // Get the number of cultures:
-        var numberOfCultures = await AppSettings.GetNumberCultures();
+        var cultureIndices = await AppSettings.GetCultureIndices();
         
         // Get the culture codes:
         var cultureInfos = new List<CultureInfo>();
-        for (var i = 1; i <= numberOfCultures; i++)
+        foreach (var cultureIndex in cultureIndices)
             cultureInfos.Add(new CultureInfo
             {
-                Code = await AppSettings.GetCultureCode(i),
-                Index = i,
+                Code = await AppSettings.GetCultureCode(cultureIndex),
+                Index = cultureIndex,
             });
         
         return cultureInfos;