From 276fa51e92627f47e4743b9d8664672f56205d4a Mon Sep 17 00:00:00 2001
From: Thorsten Sommer <mail@tsommer.org>
Date: Sat, 30 Jul 2022 23:14:39 +0200
Subject: [PATCH] Added caching to the cultures

---
 I18N Commander/Processor/AppSettings.cs | 23 +++++++++++++++++++----
 1 file changed, 19 insertions(+), 4 deletions(-)

diff --git a/I18N Commander/Processor/AppSettings.cs b/I18N Commander/Processor/AppSettings.cs
index a5eee75..555731d 100644
--- a/I18N Commander/Processor/AppSettings.cs	
+++ b/I18N Commander/Processor/AppSettings.cs	
@@ -232,20 +232,32 @@ public static class AppSettings
     
     #region Get a culture
     
+    // Cache the cultures:
+    private static readonly Dictionary<int, string> CACHE_CULTURES = new();
+
     public static async Task<string> GetCultureCode(int index)
     {
+        // Check the cache:
+        if (CACHE_CULTURES.TryGetValue(index, out var cultureCode))
+            return cultureCode;
+        
         // Get the database:
         await using var db = ProcessorMeta.ServiceProvider.GetRequiredService<DataContext>();
         
         // Get the culture code:
         var code = await db.Settings.FirstOrDefaultAsync(n => n.Code == SettingNames.CULTURE && n.IntegerValue == index);
         
-        // When the culture code is not set, fake the default culture as en-US:
-        if(code == null)
+        // When the culture code is not set & index = 1, use the default culture en-US:
+        if(code is null && index == 1)
+        {
+            CACHE_CULTURES.Add(index, "en-US");
             return "en-US";
+        }
 
-        // Return the code:
-        return code.TextValue;
+        // Update the cache & return the code:
+        var codeText = code?.TextValue ?? string.Empty;
+        CACHE_CULTURES[index] = codeText;
+        return codeText;
     }
     
     #endregion
@@ -254,6 +266,9 @@ public static class AppSettings
     
     public static async Task SetCultureCode(int index, string code)
     {
+        // Update the cache:
+        CACHE_CULTURES[index] = code;
+        
         // Get the database:
         await using var db = ProcessorMeta.ServiceProvider.GetRequiredService<DataContext>();